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2023, 42(1): 1-10.
doi: 10.12390/jbr2022080
Abstract:
【Objective】This paper aims to explore the anatomical characteristics of natural Qiongzhuea tumidinoda rhizome under different soil water and nutrient conditions, and to compare the adaptive strategies of Q. tumidinoda rhizome in different habitats.【Method】The relationship among the anatomical structure characteristics of Q. tumidinoda rhizome, soil nutrient and water in three soil depths (0-40 cm, 0-80 cm and 0-120 cm) was analyzed by using redundancy analysis and Monte Carlo test.【Result】(1) With the increase of soil water and nutrient content, the proportion of fibrous tissue, conducting tissue and vascular bundle density decreased significantly (P<0.05); However, the basic tissue ratio, vascular bundle length, width and aspect ratio of Q. tumidinoda rhizome showed an obvious increasing trend (P<0.05). (2) Among the three soil thickness habitats, the variation coefficient and plasticity index of Q. tumidinoda rhizome including tissue ratio, vascular bundle and fiber size in thin soil layer habitat were the largest. (3) Soil moisture and nutrient factors had significant effects on the anatomical structure of bamboo rhizome (P<0.05). The importance of a single soil factor on the anatomical structure of Q. tumidinoda rhizome was in following order: soil water content > available K > organic matter > total K > available P > total P > hydrolyzed N > total N > pH. The difference of soil moisture and nutrient content was the fundamental reason affecting the anatomical structure plasticity of Q. tumidinoda.【Conclusion】Soil moisture, K and organic matter content had important effects on the formation of bamboo rhizome. Q. tumidinoda can adapt to the restriction of soil factors by regulating the anatomical structure and plasticity of bamboo rhizome. Therefore, in production, the growth and development of bamboo rhizome can be promoted by regulating soil moisture content, addition of K and organic fertilizer.
【Objective】This paper aims to explore the anatomical characteristics of natural Qiongzhuea tumidinoda rhizome under different soil water and nutrient conditions, and to compare the adaptive strategies of Q. tumidinoda rhizome in different habitats.【Method】The relationship among the anatomical structure characteristics of Q. tumidinoda rhizome, soil nutrient and water in three soil depths (0-40 cm, 0-80 cm and 0-120 cm) was analyzed by using redundancy analysis and Monte Carlo test.【Result】(1) With the increase of soil water and nutrient content, the proportion of fibrous tissue, conducting tissue and vascular bundle density decreased significantly (P<0.05); However, the basic tissue ratio, vascular bundle length, width and aspect ratio of Q. tumidinoda rhizome showed an obvious increasing trend (P<0.05). (2) Among the three soil thickness habitats, the variation coefficient and plasticity index of Q. tumidinoda rhizome including tissue ratio, vascular bundle and fiber size in thin soil layer habitat were the largest. (3) Soil moisture and nutrient factors had significant effects on the anatomical structure of bamboo rhizome (P<0.05). The importance of a single soil factor on the anatomical structure of Q. tumidinoda rhizome was in following order: soil water content > available K > organic matter > total K > available P > total P > hydrolyzed N > total N > pH. The difference of soil moisture and nutrient content was the fundamental reason affecting the anatomical structure plasticity of Q. tumidinoda.【Conclusion】Soil moisture, K and organic matter content had important effects on the formation of bamboo rhizome. Q. tumidinoda can adapt to the restriction of soil factors by regulating the anatomical structure and plasticity of bamboo rhizome. Therefore, in production, the growth and development of bamboo rhizome can be promoted by regulating soil moisture content, addition of K and organic fertilizer.
2023, 42(1): 11-17.
doi: 10.12390/jbr2022112
Abstract:
【Objective】In order to compare the nutrient composition of bamboo shoots from 5 different habitats of Chimonobambusa utilis, provide reference for the comprehensive utilization of this bamboo spieces.【Method】Determine the nutrient composition of Ch. utilis shoots from Tongzi County, Guizhou Province, Zhenxiong County, Yunnan Province, Nanchuan District, Chongqing, Zheng'an County, Guizhou Province and Suiyang County, Guizhou Province. The stability of bamboo's nutrient composition from different habitats was analyzed by means of variance analysis and Duncan range analysis. 【Result】The results showed that the nutrient contents of Ch. utilis shoots from five different habitats were significantly different, and the nutrient contents from different habitats had their own characteristics. The shoots of Ch. utilis from Tongzi have the highest ash content, dietary fiber, higher protein, water content and lower fat. Shoot from Zhenxiong had the highest protein, higher ash content and dietary fiber. Shoot from Nanchuan had the highest reducing sugar. Shoot from Zheng'an had the highest moisture content and the lowest fat content. Shoot from Suiyang had higher reducing sugar and ash content. Shoot from Tongzi had the highest potassium content and higher phosphorus content. Shoot from Zhenxiong had the highest content of phosphorus, copper, calcium, magnesium, zinc, and higher content of iron and manganese. Shoot from Nanchuan had the highest iron content, manganese content, zinc content, calcium content and copper content. Shoot from Zheng'an had high magnesium content, and from Suiyang have high potassium content. The protein content of bamboo shoots of Ch. utilis from 5 different habitats was higher than those of the other 28 bamboo species. 【Conclusion】The results of this paper provide a reference for further cultivation of fine bamboo shoots and functional bamboo shoots in various producing areas.
【Objective】In order to compare the nutrient composition of bamboo shoots from 5 different habitats of Chimonobambusa utilis, provide reference for the comprehensive utilization of this bamboo spieces.【Method】Determine the nutrient composition of Ch. utilis shoots from Tongzi County, Guizhou Province, Zhenxiong County, Yunnan Province, Nanchuan District, Chongqing, Zheng'an County, Guizhou Province and Suiyang County, Guizhou Province. The stability of bamboo's nutrient composition from different habitats was analyzed by means of variance analysis and Duncan range analysis. 【Result】The results showed that the nutrient contents of Ch. utilis shoots from five different habitats were significantly different, and the nutrient contents from different habitats had their own characteristics. The shoots of Ch. utilis from Tongzi have the highest ash content, dietary fiber, higher protein, water content and lower fat. Shoot from Zhenxiong had the highest protein, higher ash content and dietary fiber. Shoot from Nanchuan had the highest reducing sugar. Shoot from Zheng'an had the highest moisture content and the lowest fat content. Shoot from Suiyang had higher reducing sugar and ash content. Shoot from Tongzi had the highest potassium content and higher phosphorus content. Shoot from Zhenxiong had the highest content of phosphorus, copper, calcium, magnesium, zinc, and higher content of iron and manganese. Shoot from Nanchuan had the highest iron content, manganese content, zinc content, calcium content and copper content. Shoot from Zheng'an had high magnesium content, and from Suiyang have high potassium content. The protein content of bamboo shoots of Ch. utilis from 5 different habitats was higher than those of the other 28 bamboo species. 【Conclusion】The results of this paper provide a reference for further cultivation of fine bamboo shoots and functional bamboo shoots in various producing areas.
2023, 42(1): 18-22.
doi: 10.12390/jbr2022096
Abstract:
【Objective】In order to explore the bamboo shoot appearance dynamics, growth process of tall and thick bamboo shoots, and the regularity of bamboo shoot formation and degradation. 【Method】The plantation of Chimonobambusa utilis in Dahanzhai, Banjiu Village, Linfeng Town, Weixin County was as the research object, the growth and development laws of Ch. utilis were analyzed based on dynamic location observation data of bamboo shoots and young bamboo growth. 【Result】The results showed that the bamboo shoot period of Ch. utilis in Weixin County lasted for 45 days. It started in mid-September and ended in late October. It can be divided into three stages: initial stage, high stage and late stage. The rate of forming bamboo and returning bamboo shoots were 78.71% and 21.29% respectively. Bamboo shoot-young bamboo had a high growth period of 50 days, showing an S-shaped growth curve of “slow-fast-slow-stop”. The growth period of ground diameter was 30 days, and the growth process followed a “fast-slow-relatively slow-stop” curve. The growth period of young bamboo diameter at breast height lasted 25 days. 【Conclusion】The study results can provide scientific basis for the regulation of bamboo shoot stage, bamboo shoot protection and bamboo cultivation, rational fertilization and directional cultivation.
【Objective】In order to explore the bamboo shoot appearance dynamics, growth process of tall and thick bamboo shoots, and the regularity of bamboo shoot formation and degradation. 【Method】The plantation of Chimonobambusa utilis in Dahanzhai, Banjiu Village, Linfeng Town, Weixin County was as the research object, the growth and development laws of Ch. utilis were analyzed based on dynamic location observation data of bamboo shoots and young bamboo growth. 【Result】The results showed that the bamboo shoot period of Ch. utilis in Weixin County lasted for 45 days. It started in mid-September and ended in late October. It can be divided into three stages: initial stage, high stage and late stage. The rate of forming bamboo and returning bamboo shoots were 78.71% and 21.29% respectively. Bamboo shoot-young bamboo had a high growth period of 50 days, showing an S-shaped growth curve of “slow-fast-slow-stop”. The growth period of ground diameter was 30 days, and the growth process followed a “fast-slow-relatively slow-stop” curve. The growth period of young bamboo diameter at breast height lasted 25 days. 【Conclusion】The study results can provide scientific basis for the regulation of bamboo shoot stage, bamboo shoot protection and bamboo cultivation, rational fertilization and directional cultivation.
2023, 42(1): 23-29.
doi: 10.12390/jbr2022093
Abstract:
【Objective】Taking the Dendrocalamus latiflorus forests identified an ingredient base for Snail Rice-flour Noodle base in Liuzhou City as the research object, studying the aboveground organs biomass allocation characteristics and model the biomass for the aboveground organs of D. latiflorus. We aimed to provide theoretical basis for the reasonable management of D. latiflorus Shoot-producing Forest. 【Method】Using random sampling method to determine the biomass of the various organs of the above-ground parts. Using the multiple linear regression analysis to select the optimal fitting biomass model. 【Result】The results showed that: except for samples from Liunan area, the mean moisture content of the parts of aboveground organs decreased with the increase of age. Except for samples from Yufeng area, the water content of each organ of the same age grade was the as following order: bamboo branches > bamboo leaves > bamboo culms. The culm biomass allocation value was the largest among all organs. There was highly significant difference in total biomass among different bases (P<0.01). Among different bases, the largest total biomass was sample from Liubei area (18 584 g), followed from Liunan area (16 631 g), and from Yufeng area was the smallest (4 092 g). 【Conclusion】The optimal biomass models of the culm, branch, leaf and DBH, which can be used for estimating the biomass were established respectively as follows: Wculm=-0.000 05+2.295 1D-1 111.107D2(R2=0.946), Wbranch=47.233D0.707(R2=0.862), Wleaf=151.455D0.570(R2=0.649). To a certain extent, our study results can provide theoretical basis for the scientific management of bamboo shoot.
【Objective】Taking the Dendrocalamus latiflorus forests identified an ingredient base for Snail Rice-flour Noodle base in Liuzhou City as the research object, studying the aboveground organs biomass allocation characteristics and model the biomass for the aboveground organs of D. latiflorus. We aimed to provide theoretical basis for the reasonable management of D. latiflorus Shoot-producing Forest. 【Method】Using random sampling method to determine the biomass of the various organs of the above-ground parts. Using the multiple linear regression analysis to select the optimal fitting biomass model. 【Result】The results showed that: except for samples from Liunan area, the mean moisture content of the parts of aboveground organs decreased with the increase of age. Except for samples from Yufeng area, the water content of each organ of the same age grade was the as following order: bamboo branches > bamboo leaves > bamboo culms. The culm biomass allocation value was the largest among all organs. There was highly significant difference in total biomass among different bases (P<0.01). Among different bases, the largest total biomass was sample from Liubei area (18 584 g), followed from Liunan area (16 631 g), and from Yufeng area was the smallest (4 092 g). 【Conclusion】The optimal biomass models of the culm, branch, leaf and DBH, which can be used for estimating the biomass were established respectively as follows: Wculm=-0.000 05+2.295 1D-1 111.107D2(R2=0.946), Wbranch=47.233D0.707(R2=0.862), Wleaf=151.455D0.570(R2=0.649). To a certain extent, our study results can provide theoretical basis for the scientific management of bamboo shoot.
2023, 42(1): 30-37.
doi: 10.12390/jbr2022109
Abstract:
【Objective】The purpose of this paper is to give full play to the performance advantages of poplar and bamboo exhibition plate. 【Method】In this study, bamboo exhibition plate with different temperature heat treatment (120 ℃, 140 ℃, 160 ℃, 0 MPa for 2 h) was used as surface plate and poplar veneer as core board to make flatten-bamboo-poplar veneer composite board which was made up by assemble patterns of parallel texture. The properties of flatten-bamboo-poplar veneer composite board such as equilibrium moisture content, color difference, gloss, bonding strength, dipping peeling rate, bending strength, modulus of elasticity and so on were tested, and the effects of different temperature treatment of the surface plate on the physical and mechanical properties of the composite board were analyzed. 【Result】The results showed that, in terms of physical properties, with the increase of heat treatment temperature of the surface plate, the equilibrium moisture content of the composite board decreased significantly. The gloss of the composite board decreased gradually, and the color perception stability increased. The total color difference was greater than 1.5, but the color change was not obvious. In terms of gluing properties, the heat treatment of the surface plate reduced the bonding strength of the composite board, reaching the lowest value at 140 ℃. Immersion peeling test showed that the bonding durability of the composite board was first strengthened and then weakened with the increase of temperature. In terms of mechanical properties, the modulus of elasticity and bending strength increased with the increase of heat treatment temperature of the surface plate, and reached the maximum value at 140 ℃. 【Conclusion】The heat treatment of surface plate enriches the visual effect of the flatten-bamboo-poplar veneer composite board, improves the bending strength and modulus of elasticity of the composite board, but has a certain adverse effect on the bonding performance of the composite board. In actual use, it should be selected according to specific needs.
【Objective】The purpose of this paper is to give full play to the performance advantages of poplar and bamboo exhibition plate. 【Method】In this study, bamboo exhibition plate with different temperature heat treatment (120 ℃, 140 ℃, 160 ℃, 0 MPa for 2 h) was used as surface plate and poplar veneer as core board to make flatten-bamboo-poplar veneer composite board which was made up by assemble patterns of parallel texture. The properties of flatten-bamboo-poplar veneer composite board such as equilibrium moisture content, color difference, gloss, bonding strength, dipping peeling rate, bending strength, modulus of elasticity and so on were tested, and the effects of different temperature treatment of the surface plate on the physical and mechanical properties of the composite board were analyzed. 【Result】The results showed that, in terms of physical properties, with the increase of heat treatment temperature of the surface plate, the equilibrium moisture content of the composite board decreased significantly. The gloss of the composite board decreased gradually, and the color perception stability increased. The total color difference was greater than 1.5, but the color change was not obvious. In terms of gluing properties, the heat treatment of the surface plate reduced the bonding strength of the composite board, reaching the lowest value at 140 ℃. Immersion peeling test showed that the bonding durability of the composite board was first strengthened and then weakened with the increase of temperature. In terms of mechanical properties, the modulus of elasticity and bending strength increased with the increase of heat treatment temperature of the surface plate, and reached the maximum value at 140 ℃. 【Conclusion】The heat treatment of surface plate enriches the visual effect of the flatten-bamboo-poplar veneer composite board, improves the bending strength and modulus of elasticity of the composite board, but has a certain adverse effect on the bonding performance of the composite board. In actual use, it should be selected according to specific needs.
2023, 42(1): 38-44.
doi: 10.12390/jbr2022101
Abstract:
【Objective】In order to realize the disassembly and assembly of the mortise joint structure of bamboo furniture. 【Method】A mortise joint structure without glue was designed. In this study, the tensile mechanical properties and roughness of two conventional mortise joint structures with glue and without glue including different roughness and the newly designed mortise joint structure were tested，and the failure characteristics of the joint and its mechanical behavior in the loading process were analyzed. 【Result】The results showed that the glue layer was mainly damaged in the glued mortise joint structure, while the mortise and tenon were not damaged in the unglued tenon joint structure. The roughness of the newly designed mortise joint structure is much less than that of the control mortise joints，but its tensile force (1 961.0 N) was much higher than that of the control mortise joints (520.7 N)，and the joints of the mortise structure are fastened. The tensile force and displacement curve of the mortise joint structure showed four development stages: straight-line rise, slow curve rise, straight-line rise and straight-line decline. 【Conclusion】The design of detachable mortise joint structure has the characteristics of simple processing technology, green environmental protection, health and safety, and its tenon can realize mass, standardized production. This study has important guiding significance for the rationality of bamboo furniture structure design, and is conducive to the innovative development of bamboo furniture.
【Objective】In order to realize the disassembly and assembly of the mortise joint structure of bamboo furniture. 【Method】A mortise joint structure without glue was designed. In this study, the tensile mechanical properties and roughness of two conventional mortise joint structures with glue and without glue including different roughness and the newly designed mortise joint structure were tested，and the failure characteristics of the joint and its mechanical behavior in the loading process were analyzed. 【Result】The results showed that the glue layer was mainly damaged in the glued mortise joint structure, while the mortise and tenon were not damaged in the unglued tenon joint structure. The roughness of the newly designed mortise joint structure is much less than that of the control mortise joints，but its tensile force (1 961.0 N) was much higher than that of the control mortise joints (520.7 N)，and the joints of the mortise structure are fastened. The tensile force and displacement curve of the mortise joint structure showed four development stages: straight-line rise, slow curve rise, straight-line rise and straight-line decline. 【Conclusion】The design of detachable mortise joint structure has the characteristics of simple processing technology, green environmental protection, health and safety, and its tenon can realize mass, standardized production. This study has important guiding significance for the rationality of bamboo furniture structure design, and is conducive to the innovative development of bamboo furniture.
2023, 42(1): 45-49.
doi: 10.12390/jbr2023009
Abstract:
Bamboo industry is a powerful measure to realize the idea of “lucid waters and lush mountains are invaluable assets”. The development of bamboo industry is of great significance for promoting forestry efficiency and increasing farmers' income. Based on the analysis of the distribution of bamboo resources, bamboo processing, bamboo shoot utilization and technical advantages of the development of bamboo industry in Shengzhou, the countermeasures to promote the common prosperity of bamboo industry related to the problems such as the low management level, the low level of bamboo shoot processing and the weak forestry infrastructure in Shengzhou are proposed.
Bamboo industry is a powerful measure to realize the idea of “lucid waters and lush mountains are invaluable assets”. The development of bamboo industry is of great significance for promoting forestry efficiency and increasing farmers' income. Based on the analysis of the distribution of bamboo resources, bamboo processing, bamboo shoot utilization and technical advantages of the development of bamboo industry in Shengzhou, the countermeasures to promote the common prosperity of bamboo industry related to the problems such as the low management level, the low level of bamboo shoot processing and the weak forestry infrastructure in Shengzhou are proposed.
2023, 42(1): 50-55.
doi: 10.12390/jbr2022130
Abstract:
【Objective】To explore the new mode of transformation and upgrading of bamboo industry, especially the integrated development of bamboo tourism under the situation of “Internet +”, and to provide reference for the method of constructing the basic system of bamboo tourism. 【Method】Case study method was adopted, Anji County of Zhejiang Province was taken as a study area. The cases of comprehensive renovation of small towns, planning, design and construction of urban and rural landscape construction during 2017—2022 were collected openly, combined with factors of bamboo tourism basic system. The case data were analyzed, and some hypotheses were proposed for verification. 【Result】The basic system of bamboo tourism can be constructed from three aspects: protecting natural landscape features, integrating tourism resources of bamboo township and innovating rural cultural tourism. Through repairing mountain background and creating river and lake space, the construction is conducted in nine aspects, including creating beautiful countryside, improving intelligent traffic, constructing folk houses in northern Zhejiang, reviving historical culture, innovating business forms and functions, digital enabling industry, and invigorating culture and tourism. 【Conclusion】In the era of Internet economy and rural revitalization, bamboo tourism, as the engine of the three industries, undertakes the function of industrial integration and business form innovation and development, and plays an increasingly important role. It is suggested that to promote the transformation and upgrading of the bamboo industry actively, to follow the development way of “developing the third industry, strengthening the second industry and driving the primary industry”, to make a linkage of the first, second and third industries, to give play to the independent innovation mode of industrial clusters and take the industrial upgrading road of exploring integrated development.
【Objective】To explore the new mode of transformation and upgrading of bamboo industry, especially the integrated development of bamboo tourism under the situation of “Internet +”, and to provide reference for the method of constructing the basic system of bamboo tourism. 【Method】Case study method was adopted, Anji County of Zhejiang Province was taken as a study area. The cases of comprehensive renovation of small towns, planning, design and construction of urban and rural landscape construction during 2017—2022 were collected openly, combined with factors of bamboo tourism basic system. The case data were analyzed, and some hypotheses were proposed for verification. 【Result】The basic system of bamboo tourism can be constructed from three aspects: protecting natural landscape features, integrating tourism resources of bamboo township and innovating rural cultural tourism. Through repairing mountain background and creating river and lake space, the construction is conducted in nine aspects, including creating beautiful countryside, improving intelligent traffic, constructing folk houses in northern Zhejiang, reviving historical culture, innovating business forms and functions, digital enabling industry, and invigorating culture and tourism. 【Conclusion】In the era of Internet economy and rural revitalization, bamboo tourism, as the engine of the three industries, undertakes the function of industrial integration and business form innovation and development, and plays an increasingly important role. It is suggested that to promote the transformation and upgrading of the bamboo industry actively, to follow the development way of “developing the third industry, strengthening the second industry and driving the primary industry”, to make a linkage of the first, second and third industries, to give play to the independent innovation mode of industrial clusters and take the industrial upgrading road of exploring integrated development.
2020, 39(2): 66-73.
摘要：
研究以西南地区竹林风景区为研究对象，运用层次分析法（AHP法）构建了包含5个准则层、20个指标层的风景竹林林内景观评价指标体系，其中准则层权重为林内美学指标（0.286 4） > 竹林健康指标（0.244 2） > 林分结构指标（0.176 9） > 林下特征指标（0.166 3） > 林木测树指标（0.126 2）；运用美景度评价法（SBE法）研究了每个准则层中的主要评价指标（平均枝下高、立竹密度、倒伏度、林下层整齐度、通视性）的类目等级与竹林美景度值的相关性。研究结果表明人们偏爱枝下高在5.5 m以上、竹林密度适当（散生竹6 000~12 000株·hm-2，丛生竹700~1 100丛·hm-2）、几乎没有倒伏（或倒伏竹株数≤2株·100m-2）、林下层整齐、通视性在20 m以上的竹林，由此提出了风景竹林林内景观改造提升建议。
研究以西南地区竹林风景区为研究对象，运用层次分析法（AHP法）构建了包含5个准则层、20个指标层的风景竹林林内景观评价指标体系，其中准则层权重为林内美学指标（0.286 4） > 竹林健康指标（0.244 2） > 林分结构指标（0.176 9） > 林下特征指标（0.166 3） > 林木测树指标（0.126 2）；运用美景度评价法（SBE法）研究了每个准则层中的主要评价指标（平均枝下高、立竹密度、倒伏度、林下层整齐度、通视性）的类目等级与竹林美景度值的相关性。研究结果表明人们偏爱枝下高在5.5 m以上、竹林密度适当（散生竹6 000~12 000株·hm-2，丛生竹700~1 100丛·hm-2）、几乎没有倒伏（或倒伏竹株数≤2株·100m-2）、林下层整齐、通视性在20 m以上的竹林，由此提出了风景竹林林内景观改造提升建议。
2020, 39(1): 90-94.
摘要：
四川省是中国非物质文化遗产资源大省，其雄厚的文化底蕴孕育了四川特色竹编文化，创造了诸多精美的竹编产品。研究介绍了四川省各个地区的代表竹编工艺，包括成都邛崃的瓷胎竹编、青神县的青神竹编、渠县的刘氏竹编、自贡的龚扇、崇州市的道明竹编。简述了典型代表竹编的工艺特性、编织技艺和特色，让人们深入了解四川地区的竹编工艺，并思考如何在科技时代传承和创新竹编工艺。
四川省是中国非物质文化遗产资源大省，其雄厚的文化底蕴孕育了四川特色竹编文化，创造了诸多精美的竹编产品。研究介绍了四川省各个地区的代表竹编工艺，包括成都邛崃的瓷胎竹编、青神县的青神竹编、渠县的刘氏竹编、自贡的龚扇、崇州市的道明竹编。简述了典型代表竹编的工艺特性、编织技艺和特色，让人们深入了解四川地区的竹编工艺，并思考如何在科技时代传承和创新竹编工艺。
2020, 39(2): 45-50.
摘要：
对竹材饱和蒸汽炭化热处理工艺参数进行了优化研究，分析其对竹材加工废水和竹材颜色的影响，试验结果表明，竹材热处理时间和饱和蒸气压对其废水排放量和COD值均呈正相关，即饱和蒸气压越高、处理时间越长，则废水排放量越多、COD值越高；且当饱和蒸汽压超过4.2 MPa·s时（对应热处理温度为250℃左右），竹材加工废水COD值跃增。通过色差L*、b*、ΔE*值与蒸煮饱和蒸气压和炭化时间的线性关系，建立竹材色差与热处理工艺的相关性数学模型，根据现有竹材产品颜色预估热处理工艺。具此分别对浅色系、中深色系、深色系加工竹材进行工艺优化，相比与传统工艺，优化竹材热处理工艺分别降低单位质量废水排放量11.53%、11.32%、12.5%，总有机物排放量分别降低51.91%、43.03%、28.56%，具有较好的实际生产指导意义。
对竹材饱和蒸汽炭化热处理工艺参数进行了优化研究，分析其对竹材加工废水和竹材颜色的影响，试验结果表明，竹材热处理时间和饱和蒸气压对其废水排放量和COD值均呈正相关，即饱和蒸气压越高、处理时间越长，则废水排放量越多、COD值越高；且当饱和蒸汽压超过4.2 MPa·s时（对应热处理温度为250℃左右），竹材加工废水COD值跃增。通过色差L*、b*、ΔE*值与蒸煮饱和蒸气压和炭化时间的线性关系，建立竹材色差与热处理工艺的相关性数学模型，根据现有竹材产品颜色预估热处理工艺。具此分别对浅色系、中深色系、深色系加工竹材进行工艺优化，相比与传统工艺，优化竹材热处理工艺分别降低单位质量废水排放量11.53%、11.32%、12.5%，总有机物排放量分别降低51.91%、43.03%、28.56%，具有较好的实际生产指导意义。
2020, 39(1): 13-23.
摘要：
通过文献计量学可视化分析方法客观评价国际竹林碳汇研究进程，了解国际竹林碳汇研究前沿，从而进一步推动中国竹林碳汇研究的发展。采用VOSviewer软件和文献计量学方法，以Web of Science数据库核心合集为数据源，分析近30 a国际竹林碳汇研究的历程。结果表明：①国际竹林碳汇研究发文量呈井喷式增长；②竹林碳汇研究主要集中于中国、美国、日本3个国家，研究作者群体呈现"大分散、小聚集"；③研究方向呈现多元化趋势，以环境科学为最多；④竹林碳汇研究的资助机构以中国国家自然科学基金为最多，资助文献达到354篇，H指数最高；⑤竹林碳汇目前研究内容逐渐多样化，在竹林生态系统碳汇精准监测、竹林碳汇的影响机制、竹林土壤微生物与土壤碳循环机理等成为近几年的研究热点。通过对国内外的关键词共现分析，了解竹林碳汇领域整体研究的背景，分析了竹林碳汇研究的阶段历程，得出竹林碳汇研究的热点和发展趋势，对今后的研究具有一定的参考价值。
通过文献计量学可视化分析方法客观评价国际竹林碳汇研究进程，了解国际竹林碳汇研究前沿，从而进一步推动中国竹林碳汇研究的发展。采用VOSviewer软件和文献计量学方法，以Web of Science数据库核心合集为数据源，分析近30 a国际竹林碳汇研究的历程。结果表明：①国际竹林碳汇研究发文量呈井喷式增长；②竹林碳汇研究主要集中于中国、美国、日本3个国家，研究作者群体呈现"大分散、小聚集"；③研究方向呈现多元化趋势，以环境科学为最多；④竹林碳汇研究的资助机构以中国国家自然科学基金为最多，资助文献达到354篇，H指数最高；⑤竹林碳汇目前研究内容逐渐多样化，在竹林生态系统碳汇精准监测、竹林碳汇的影响机制、竹林土壤微生物与土壤碳循环机理等成为近几年的研究热点。通过对国内外的关键词共现分析，了解竹林碳汇领域整体研究的背景，分析了竹林碳汇研究的阶段历程，得出竹林碳汇研究的热点和发展趋势，对今后的研究具有一定的参考价值。
2020, 39(1): 73-78.
摘要：
毛竹是中国重要的经济竹种，区域上具有明显的垂直分布特点。为揭示毛竹林叶片碳氮磷化学计量特征的海拔梯度效应，为毛竹林科学的林分管理与土壤养分补充提供理论依据，测定了3个海拔梯度毛竹林叶片碳（C）、氮（N）、磷（P）含量，分析了其化学计量特征和异速增长关系。结果表明：随着立竹年龄的增大，毛竹林立竹叶片碳、氮、磷含量及N：P均总体上呈降低趋势，而C：N、C：P则总体上呈升高趋势，1度立竹叶片碳、氮、磷含量均显著高于2度、3度立竹，且后2者间碳、氮、磷含量及其化学计量比均无显著差异。随海拔梯度的升高，毛竹林叶片碳含量略有降低，而氮、磷含量呈降低趋势，其中，中、低海拔叶片氮、磷含量显著高于高海拔，且前2者氮含量无显著差异，而磷含量差异显著；叶片C：N、C：P、N：P均呈上升趋势，其中，中、低海拔叶片C：N显著低于高海拔，中、高海拔叶片N：P显著高于低海拔，叶片C：P海拔梯度间差异显著，其他均无显著差异；不同海拔梯度毛竹林叶片碳、氮、磷间呈显著的正异速增长关系，随海拔梯度的升高，C-N、C-P异速增长指数显著下降，而N-P异速增长指数显著提高。研究表明，随海拔梯度的升高，毛竹林叶片氮、磷含量降低，利用率提高，P素限制性作用增强，建议在高海拔毛竹林经营中宜适当增加磷素的补充。
毛竹是中国重要的经济竹种，区域上具有明显的垂直分布特点。为揭示毛竹林叶片碳氮磷化学计量特征的海拔梯度效应，为毛竹林科学的林分管理与土壤养分补充提供理论依据，测定了3个海拔梯度毛竹林叶片碳（C）、氮（N）、磷（P）含量，分析了其化学计量特征和异速增长关系。结果表明：随着立竹年龄的增大，毛竹林立竹叶片碳、氮、磷含量及N：P均总体上呈降低趋势，而C：N、C：P则总体上呈升高趋势，1度立竹叶片碳、氮、磷含量均显著高于2度、3度立竹，且后2者间碳、氮、磷含量及其化学计量比均无显著差异。随海拔梯度的升高，毛竹林叶片碳含量略有降低，而氮、磷含量呈降低趋势，其中，中、低海拔叶片氮、磷含量显著高于高海拔，且前2者氮含量无显著差异，而磷含量差异显著；叶片C：N、C：P、N：P均呈上升趋势，其中，中、低海拔叶片C：N显著低于高海拔，中、高海拔叶片N：P显著高于低海拔，叶片C：P海拔梯度间差异显著，其他均无显著差异；不同海拔梯度毛竹林叶片碳、氮、磷间呈显著的正异速增长关系，随海拔梯度的升高，C-N、C-P异速增长指数显著下降，而N-P异速增长指数显著提高。研究表明，随海拔梯度的升高，毛竹林叶片氮、磷含量降低，利用率提高，P素限制性作用增强，建议在高海拔毛竹林经营中宜适当增加磷素的补充。
2020, 39(2): 89-93.
摘要：
竹纤维指的是天然竹纤维（也称竹原纤维），是一种新型的植物纤维，不同于竹浆纤维、竹炭纤维等化学粘胶再生纤维素纤维。竹纤维作为一种性能优异的基础材料，可广泛应用于纺织、非织造、建筑材料、汽车材料等复合材料生产领域。轻质增强复合材料是实现轻量化的一种重要趋势，常用复合材料的碳纤增强材料成本高，玻纤改性复合材料技术最成熟，但其也存在韧性降低、脆性增加、机械磨损大、加工能耗大、易吸湿、易粗糙、不易降解、废弃难处理等问题。研究发现，以天然环保新材料的竹纤维为增强材料，制备的竹纤维复合材料具有密度小、模量与强度高特点，非常适合汽车部件的轻量化。与传统的复合材料相比，竹纤维复合材料质量更轻，生产能耗更少，在产品的整个生命周期阶段，碳排放量非常少，更符合现代社会"绿色环保和低碳化"的要求。
竹纤维指的是天然竹纤维（也称竹原纤维），是一种新型的植物纤维，不同于竹浆纤维、竹炭纤维等化学粘胶再生纤维素纤维。竹纤维作为一种性能优异的基础材料，可广泛应用于纺织、非织造、建筑材料、汽车材料等复合材料生产领域。轻质增强复合材料是实现轻量化的一种重要趋势，常用复合材料的碳纤增强材料成本高，玻纤改性复合材料技术最成熟，但其也存在韧性降低、脆性增加、机械磨损大、加工能耗大、易吸湿、易粗糙、不易降解、废弃难处理等问题。研究发现，以天然环保新材料的竹纤维为增强材料，制备的竹纤维复合材料具有密度小、模量与强度高特点，非常适合汽车部件的轻量化。与传统的复合材料相比，竹纤维复合材料质量更轻，生产能耗更少，在产品的整个生命周期阶段，碳排放量非常少，更符合现代社会"绿色环保和低碳化"的要求。
2020, 39(3): 12-19.
摘要：
金佛山方竹是我国西南地区特有的笋用竹种之一，也是贵州省农村产业革命确立的12大特色优势产业中重点推介的竹种之一，系统分析金佛山方竹研发现状有利于推动竹产业的高质量发展。该文利用科睿唯安（WOS）和中国知网（CNKI）收集了1964-2020年国内外公开发行刊物所刊载的130余篇有关金佛山方竹文献及10余篇硕士论文，可视化功能分析表明：①研究文献、参考文献及引证文献整体呈上升趋势，进入21世纪后呈波动性快速增长态势；②近40 a文献量向主流期刊汇聚，权威期刊文献量仍然较少；③论文作者及机构文献量呈4个梯队分布，主要集中在贵州省、重庆市及云南省；④受国家级科技支撑计划及国家自然科学基金资助的课题量占61.76%，省（市）级课题量排序为贵州省（26.47%）、四川省（5.88%）和重庆市（2.94%）；⑤主题词频率>3.0%、2.0-3.0%、1.0-2.0%和<1.0% 4个等级中，主题词量分别为21.05%、21.05%、47.37%和10.53%；⑥和金佛山方竹共现频率前3位排序中，主题词为方竹笋（16.33%），产业发展或幼竹生长（8.16%），母竹栽培、笋用林或采收加工（6.12%）；次主题词为方竹笋（50.00%），乔木层（20.00%），海拔高度、形态学鉴定或化合物（10.00%）。对主要热点领域的竹林特性、培育技术、竹笋产量及质量研究文献进行了系统综述，并对笋用林培育和以竹笋产业链为主导的全产业链建设提出了若干建议。
金佛山方竹是我国西南地区特有的笋用竹种之一，也是贵州省农村产业革命确立的12大特色优势产业中重点推介的竹种之一，系统分析金佛山方竹研发现状有利于推动竹产业的高质量发展。该文利用科睿唯安（WOS）和中国知网（CNKI）收集了1964-2020年国内外公开发行刊物所刊载的130余篇有关金佛山方竹文献及10余篇硕士论文，可视化功能分析表明：①研究文献、参考文献及引证文献整体呈上升趋势，进入21世纪后呈波动性快速增长态势；②近40 a文献量向主流期刊汇聚，权威期刊文献量仍然较少；③论文作者及机构文献量呈4个梯队分布，主要集中在贵州省、重庆市及云南省；④受国家级科技支撑计划及国家自然科学基金资助的课题量占61.76%，省（市）级课题量排序为贵州省（26.47%）、四川省（5.88%）和重庆市（2.94%）；⑤主题词频率>3.0%、2.0-3.0%、1.0-2.0%和<1.0% 4个等级中，主题词量分别为21.05%、21.05%、47.37%和10.53%；⑥和金佛山方竹共现频率前3位排序中，主题词为方竹笋（16.33%），产业发展或幼竹生长（8.16%），母竹栽培、笋用林或采收加工（6.12%）；次主题词为方竹笋（50.00%），乔木层（20.00%），海拔高度、形态学鉴定或化合物（10.00%）。对主要热点领域的竹林特性、培育技术、竹笋产量及质量研究文献进行了系统综述，并对笋用林培育和以竹笋产业链为主导的全产业链建设提出了若干建议。
2020, 39(3): 78-90.
摘要：
为识别宜兴竹海视觉景观的关键区域，以江苏省宜兴市宜兴竹海森林公园为研究区域，把宜兴竹海聚集人群较多的11个观景平台为研究对象，运用ArcMap10.2处理视觉敏感度的3个客观分量——相对坡度（Sa）、相对距离（Sd）和出现几率（St），对景观视觉敏感度进行分析，使用美景度评价法（SBE法）获得70名专业人员的主观偏好评分值，综合GIS和SBE法的评分结果，采用重要性-表现分析法（IPA法）构建研究区视觉景观的敏感度-主观偏好矩阵，将宜兴竹海划分为4个视觉景观区域并依据分区结果对竹林景观保护、景区规划管理提供依据。由结果可知：百竹园、嬉水池观景平台的景观敏感度、主观偏好评分双高，属于宜兴竹海的"视觉景观关键区"，苏南第一峰、寂照禅寺观景平台的主观偏好评分高、景观敏感度低，属于"景观自然发展区"，太湖之源、入口广场、冒龙池观景平台的景观敏感度高、主观偏好评分低，属于"景观优先改进区"，索桥凌波、观瀑阁、赏竹亭观景平台的景观敏感度、偏好评价双低，属于"景观次优先改进区"。构建矩阵兼顾主客观因素对视觉景观优劣进行评价，使用GIS空间分析量化抽象的竹林视觉景观数据，主观偏好评分法反映公众对竹林视觉效果的真实感受，为旅游区景观视觉评价及关键区识别提供方法。
为识别宜兴竹海视觉景观的关键区域，以江苏省宜兴市宜兴竹海森林公园为研究区域，把宜兴竹海聚集人群较多的11个观景平台为研究对象，运用ArcMap10.2处理视觉敏感度的3个客观分量——相对坡度（Sa）、相对距离（Sd）和出现几率（St），对景观视觉敏感度进行分析，使用美景度评价法（SBE法）获得70名专业人员的主观偏好评分值，综合GIS和SBE法的评分结果，采用重要性-表现分析法（IPA法）构建研究区视觉景观的敏感度-主观偏好矩阵，将宜兴竹海划分为4个视觉景观区域并依据分区结果对竹林景观保护、景区规划管理提供依据。由结果可知：百竹园、嬉水池观景平台的景观敏感度、主观偏好评分双高，属于宜兴竹海的"视觉景观关键区"，苏南第一峰、寂照禅寺观景平台的主观偏好评分高、景观敏感度低，属于"景观自然发展区"，太湖之源、入口广场、冒龙池观景平台的景观敏感度高、主观偏好评分低，属于"景观优先改进区"，索桥凌波、观瀑阁、赏竹亭观景平台的景观敏感度、偏好评价双低，属于"景观次优先改进区"。构建矩阵兼顾主客观因素对视觉景观优劣进行评价，使用GIS空间分析量化抽象的竹林视觉景观数据，主观偏好评分法反映公众对竹林视觉效果的真实感受，为旅游区景观视觉评价及关键区识别提供方法。
2020, 39(2): 11-14.
摘要：
为研究林地垦复时间对毛竹鞭笋产量的影响，于2001-2019年，在绍兴市柯桥区实施毛竹鞭笋生产实践。结果表明，毛竹林地全垦可显著提高鞭笋产量，以5月下旬-6月上旬垦复为宜；7月鞭笋产量最高，秋季鞭笋产量相对较低。毛竹林地管理和挖笋方式对不同时间鞭笋产量的影响将作为下一步重点研究的方向。
为研究林地垦复时间对毛竹鞭笋产量的影响，于2001-2019年，在绍兴市柯桥区实施毛竹鞭笋生产实践。结果表明，毛竹林地全垦可显著提高鞭笋产量，以5月下旬-6月上旬垦复为宜；7月鞭笋产量最高，秋季鞭笋产量相对较低。毛竹林地管理和挖笋方式对不同时间鞭笋产量的影响将作为下一步重点研究的方向。
2020, 39(2): 79-84.
摘要：
林下经济是实现林地生物的多样性以及农、林、牧资源共享，达到优势互补的可持续发展立体复合种养模式。林药复合经营模式是我国最具林业特色的林下经济经营方式之一，做到生态效益、经济效益、社会效益的有机结合。通过实地调查、访谈和资料收集等方式，对浙江省衢州市毛竹林下种植以及林下经济对乡村振兴的影响进行调查；对毛竹林下中草药的发展现状，毛竹林下经济与乡村旅游对乡村振兴的影响，以及林下经济面临的问题展开讨论；并且结合当地实际情况，分析存在的问题，并在此基础上提出毛竹林下经济的建议与展望。
林下经济是实现林地生物的多样性以及农、林、牧资源共享，达到优势互补的可持续发展立体复合种养模式。林药复合经营模式是我国最具林业特色的林下经济经营方式之一，做到生态效益、经济效益、社会效益的有机结合。通过实地调查、访谈和资料收集等方式，对浙江省衢州市毛竹林下种植以及林下经济对乡村振兴的影响进行调查；对毛竹林下中草药的发展现状，毛竹林下经济与乡村旅游对乡村振兴的影响，以及林下经济面临的问题展开讨论；并且结合当地实际情况，分析存在的问题，并在此基础上提出毛竹林下经济的建议与展望。
2020, 39(2): 15-18.
Abstract:
2020, 39(2): 1-3.
Abstract:
Founded in 1982 quarterly
Used Name：Journal of Bamboo Research
Competent Authorities:
Zhejiang Forestry Bureau
Sponsored by:
Bamboo Research and Development Center, National Forestry and Grassland Administration
Bamboo Branch of Chinese Forestry Society
Zhejiang Academy of Forestry
ISSN1000-6567
CN33-1399/S
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