2022 Vol. 41, No. 1

Display Method:
Phyllostachys edulis 'Yuanbao'——A Bamboo Cultivar
YUE Jin-jun, MA Jing-xia, YUAN Jin-ling
2022, 41(1): 1-4. doi: 10.12390/jbr2022054
Abstract(613) PDF(127)
The correct scientific name is the basis of plant research and academic exchange. Solving the confusion between Phyllostachys edulis 'Yuanbao' and Phyllostachys edulis f. tubaeformis is conducive to bamboo academic research and exchange. The authors clarified the differences betweenPhyllostachys edulis 'Yuanbao' and Phyllostachys edulisf.tubaeformis based on morphological characteristics,introduction history and type specimen verification,and corrected the mistake that Phyllostachys edulis'Yuanbao' had long been regarded as Phyllostachys edulis f. tubaeformis. Phyllostachys edulis'Yuanbao' has oblate culms,sunken internodes and wavy nodes,and the internodes show typical 'Yuanbao' shape from the branch side. The plants are short and compact with dense branches and leaves. Through years of observation and comparison,its distinctive traits are uniform and stable. In conclusion,Phyllostachys edulis'Yuanbao' is a bamboo cultivar with high ornamental values,and it has broad application prospects in gardening and landscaping.
Review on the Study of the Genus Chimonocalamus (Poaceae:Bambusoideae)
ZHANG Yu-xiao
2022, 41(1): 5-9. doi: 10.12390/jbr2022038
Abstract(412) PDF(108)
Chimonocalamus was established by renowned bamboo taxonomists Chi-ju Hsueh and Tong-pei Yi. Species in this genus are medium-sized clumping bamboos. Most taxa of this genus are distributed in China,India,Bhutan,Myanmar,Thailand and Vietnam,with Yunnan,China as the diversity center. The inner culm walls of most species in Chimonocalamuspossess fragrant volatile liquid which is unique in the subfamily Bambusoideae,and most taxa are distributed narrowly. Therefore,they are considered as rare bamboos by researchers. In this paper,research progresses on Chimonocalamus were summarized in terms of taxonomy,molecular phylogenetics,phytochemistry,technology of introduction and cultivation,and so on,which may provide references for the conservation and utilization of the genus Chimonocalamus.
Research on Canopy Height Inversion of Moso Bamboo Forests on Ta-pieh Mountains Based on LiDAR
LI Ling-na, SUN Yue, WAN Fang-fang, XU Xiao-niu, HUANG Xing-zhao
2022, 41(1): 10-16. doi: 10.12390/jbr2022031
Abstract(382) PDF(108)
Accurately obtaining the canopy height of Phyllostachys edulis is of great significance for the study of the resource structure characteristics and sustainable management of Phyllostachys edulis forest. Taking Phyllostachys edulis stand in Zhuyuan Village,Guanmiao Township,Jinzhai County,Anhui Province as the research subject,28 standard sample plots of 25 m×25 m were established,and the height of each Moso bamboo canopy was determined. At the same time,both data of the Airborne LiDAR and the Spaceborne LiDAR were also obtained. The results indicated that slope and vegetation cover were the important characteristic parameters affecting the canopy height. Based on the data assimilation of the Airborne LiDAR and the Spaceborne LiDAR,the model of Phyllostachys edulis canopy height was established by using stepwise linear regression. The modeling effect analysis showed that the root mean square error was reduced by 0.77 m and the coefficient of determination was improved by 0.20 after incorporating the slope and vegetation cover. The prediction effect analysis showed that the correlation coefficient between the estimated and measured values was 0.96. Therefore,when retrieving Phyllostachys edulis canopy height from LiDAR data,terrestrial topography and vegetation cover should be taken into account in order to achieve the accurate estimation.
Chimonobambusa szechuanensis'Wolonghong', a New Bamboo Cultivar as Staple Food for the Giant Panda
HUANG Jin-yan, SHI Jun-yi, LIU Dian, ZHOU Shi-qiang, Xie Hao, Ma Li-sha
2022, 41(1): 17-19. doi: 10.12390/jbr2022015
Abstract(353) PDF(97)
In 1981,Chimonobambusa szechuanensis(Rendle) Keng f. was introduced from Mabian Dafengding Nature Reserve to the Hetaoping base of China Conservation and Research Centre for the Giant Panda in Wolong Nature Reserve. In 2010,some individuals with aubergine culms and branches were found in the cultivated population. Those individuals were separated,optimized and cultivated further. The aubergine color on culms and branches was retained in these individuals. In this paper,it was described as a new bamboo cultivar,Chimonobambusa szechuanensis 'Wolonghong',as the giant panda's staple food bamboo.
Preparation of MoS2/Bamboo Photothermal Conversion Material and Its Application in Seawater Desalination
JIN Yang-bing, XIE Mei-hua, ZHANG Ping, LI Jing-peng, WANG Zhe, JIN Chun-de
2022, 41(1): 20-28. doi: 10.12390/jbr2022056
Abstract(410) PDF(137)
In order to alleviate the shortage of freshwater resources,a 2-dimensional MoS2/bamboo photothermal conversion material was prepared by hydrothermal synthesis of molybdenum disulfide on bamboo with sodium molybdate and thiourea as raw materials. Its desalination property was examined through the seawater evaporation test. The results showed that the evaporation rate of seawater with MoS2/bamboo reached 1.095 kg m-2·h-1 after one-hour evaporation under one-sun intensity illumination. The light-heat conversion efficiency was 78.20%. And the maximum optical absorptivity of MoS2/bamboo at wavelengths between 250 nm and 2 500 nm measured by UV/Vis/NIR diffuse reflectance spectroscopy exceeded 80%. These indicated that MoS2/bamboo material boasted good photothermal conversion efficiency. Therefore,MoS2/bamboo material in this study had superior photothermal water evaporation performance,which provided reference and application basis for realizing the efficient utilization of green and sustainable photothermal evaporation devices.
Research on Industrialized Development of Bamboo Culture Under the Background of Rural Revitalization——Based on Symbolic Interaction Theory
BI Chang-xin, LI Xin-le
2022, 41(1): 29-34. doi: 10.12390/jbr2022013
Abstract(444) PDF(98)
Based on the symbolic interaction theory,this paper studied the industrialized development of bamboo culture in China under the background of rural revitalization. The authors analyzed the problems that the industrialization of China's bamboo culture had encountered. The emotionalized,thematic and interactive principles concerning the industrialized development of China's bamboo culture were summarized in line with the symbolic interaction theory. Furthermore,some feasible methods to promote bamboo culture industrialization were proposed,including strengthening publicity and education,soliciting the government's support and thoroughly exploring the industrial connotation of bamboo culture.
Preparation and Properties of Bamboo Films with Excellent UV Shielding Performance Based on NMI/DMSO Solvent System
SHI Chun, LI Min-zhao, HUI Chao-mao, LIU Wei-yi, YANG Jing, YANG Hai-yan, SHI Zheng-jun
2022, 41(1): 35-41. doi: 10.12390/jbr2022044
Abstract(821) PDF(181)
A scheme of full-component acetylation modification of bamboo based on 1-methylimidazole/dimethyl sulfoxide (NMI/DMSO) solvent system was constructed. Bamboo-based UV shielding films with superior plasticity and antibacterial properties were prepared by adding polyethylene glycol as plasticizer and loading silver nanoparticles onto the acetylated products as substrates. The properties of bamboo-based UV shielding films were systematically characterized by component content determination, infrared spectroscopy, mechanical property test, UV-vis transmittance test, antibacterial test, and so on. The results showed that the NMI/DMSO solvent system realized the homogeneous and simultaneous modification of bamboo components. The contents of lignin, cellulose and hemicellulose in the full-component acetylated films of Dendrocalamus sinicus were 22.5%, 63.3% and 13.2%, respectively. Obvious characteristic peaks of acetyl groups were detected in the infrared spectrum of the films. The lignin with UV shielding ability was completely retained and uniformly dispersed in the films. The bamboo base films, without any further modification, showed excellent UV shielding performance and completely blocked the ultraviolet radiation of the wavelengths between 200nm and 400nm. The tensile strength of bamboo-based UV shielding films modified by polyethylene glycol increased by 119%. After further adding silver nanoparticles, the antibacterial effect of the bamboo base films on common bacteria in the air and the soil was significantly improved. In addition, compared with bamboo base films, the tensile strength and the elongation at break of the bamboo-based PEG-Ag composite films increased by 137% and 366%, respectively. This work provided new ideas for the high-value utilization of bamboo and the development of new bamboo-based renewable materials.
Achievements and Perspectives of International Registration for Bamboo Cultivars
SHI Jun-yi, WU Liang-ru, ZHOU De-qun, MA Li-sha, YAO Jun
2022, 41(1): 42-49. doi: 10.12390/jbr2022041
Abstract(306) PDF(61)
International registration for bamboo cultivars is an effective approach to legitimately establish bamboo cultivars in accordance with the International Code of Nomenclature for Cultivated Plants (ICNCP). Because of its scientific and authoritative nature,international registration for bamboo cultivars has been widely recognized and adopted by the international community.Since the "International Cultivar Registration Center for Bamboos (ICRCB)" was approved by the International Society for Horticultural Science (ISHS),periodic positive achievements have been acquired.Until December 2021,406 bamboo cultivars have been recognized and registered worldwide,including 352 traditional cultivars and 54 newly registered,thanks to good efforts by the Center to systematically allocate the varieties and forms,and register new cultivars internationally and legally according to ICNCP,although there remain 179 bamboo taxa in doubt and not yet recognized due to lack of enough information. It is proved that the international registration for bamboo cultivars facilitates the standardization of the global bamboo cultivars information,integrates the previous accomplishments in this field,promotes the international exchange and enhances the development of bamboo industry in the world.
Research Progress on Identification of Bamboo Germplasm Resources
WANG Zhi-bo, XU Tao, LI Xiao-hong
2022, 41(1): 50-54. doi: 10.12390/jbr2022014
Abstract(582) PDF(61)
Due to the characteristics of bamboo plants,many difficulties are found in the identification of bamboo germplasm resources,especially the confusion over classification. Nowadays,new technologies are applied in bamboo research,and more germplasm identification methods become available. In order to provide some perspectives for bamboo identification research in the future,this paper combed through dozens of studies on bamboo germplasm identification in recent years,and compiled the research progress in both conventional classification and modern identification technologies. The pros and cons of various methods were assessed and summarized,and the future research direction was proposed.
Analysis of Growth and Soil Physicochemical Properties of Two Mixed Bamboo Forests
LIU Jing-zao
2022, 41(1): 55-59. doi: 10.12390/jbr2022025
Abstract(383) PDF(79)
In this paper,the effects of mixed forest management on the growth and soil physical and chemical properties of two mixed forests,i. e.,Moso bamboo (Phyllostachys edulis)-China fir (Cunninghamia lanceolata) and Moso bamboo-Fujian cypress (Fokienia hodginsii),were studied. The results showed that properly mixed forests could promote the growth of both bamboo and the other tree species. Specifically,5 bamboo stems and 5 China fir trees were the most suitable ratio for a mixed Moso bamboo-China fir forest,while less than 20 percent of Fujian cypress was acceptable in a mixed Moso bamboo-Fujian cypress forest. The nutrient elements in the soil surface layer were more abundant than those in the lower layer in the mixed Moso bamboo-China fir forest,and in the ideal 50/50 mixture,the nutrient elements were rich,the non-capillary porosity and the soil aeration reached the maximum values,and the soil fertility was the highest. The non-capillary porosity of the soil in mixed Moso bamboo-Fujian cypress forest was lower than that in pure Fujian cypress forest and the surface soil bulk density decreased as the proportion of Fujian cypress in the forest increased. The highest soil fertility was observed in the plot of 9 bamboo stems and 1 Fujian cypress tree. The soil pH value of any mixed forest was lower than that of the pure Moso bamboo forest,while the soil pH of the pure China fir forest was even lower than that of any mixed Moso bamboo-China fir forest. The soil pH of the pure Fujian cypress forest fell between those of the mixed Moso bamboo-Fujian cypress forests.
Soil Quality Analysis of Typical Dendrocalamopsis oldhami Forests in Pingyang County,Zhejiang Province
QIU Jin-lian, WANG Gang, GUO Ming-yang, SHI Wen-hui, YING Ye-qing
2022, 41(1): 60-65. doi: 10.12390/jbr2022004
Abstract(281) PDF(81)
In order to fully understand the soil fertility status of theDendrocalamopsis oldhamiforests and scientifically evaluate the soil environmental quality,the soils of seven D. oldhamiforest sites in Pingyang County,Zhejiang Province were sampled,and the soil physical and chemical properties as well as soil enzyme activities were measured. The principal component analysis was conducted to assess the soil factors. The results showed that the soil bulk density of the bamboo forest was 1.37~1.51 g·cm-3,the moisture content was 24.33%~27.67%,and the porosity was 43.15%~48.08%. The contents of total nitrogen,total phosphorus and total potassium in the soil were 1.09~2.29 g·kg-1,0.38~0.61 g·kg-1 and 21.74~34.41 g·kg-1,respectively. The contents of soil alkali hydrolyzable nitrogen,available phosphorus and available potassium were 100.98~119.60 mg·kg-1,2.25~4.94 mg·kg-1 and 150.56~213.56 mg·kg-1,respectively. The activities of soil urease,acid phosphatase,nitrate reductase and nitrite reductase were in the ranges of 1 175.09~1 332.93 μg·d-1·g-1,6.93~9.22 mg·d-1·g-1,19.42~25.52 μg·d-1·g-1 and 21.66~28.85 μg·d-1·g-1,respectively. The principal component analysis showed that the first five principal components cumulatively contributed 85.18% soil properties of the D. oldhamiforest. The first and second principal components of D. oldhamiforest soil reflected 61.15% of the original data information,in which the absolute values of the feature vectors of total nitrogen,total phosphorus,alkali hydrolyzable nitrogen,available phosphorus,available potassium,total potassium,organic matter,and urease in the soil were relatively high. Therefore,in future management of D. oldhamiforests,it is necessary to continuously regulate the soil nutrient condition by scientific fertilization based on the growth requirements,and avoid non-point source pollution and soil environmental quality deterioration caused by bamboo fertilization.
Effects of Fertilization on Soil Quality and Biomass of Bamboo (Dendrocalamus sinicus) Seedlings
ZHOU Yun-fei, HUI Chao-mao, LIU Wei-yi
2022, 41(1): 66-73. doi: 10.12390/jbr2022043
Abstract(286) PDF(204)
Five different fertilizer treatments were applied to investigate their effects on soil nutrients,soil enzyme activities,soil microbial populations and growth of Dendrocalamus sinicus seedlings. The fertilizer recipes were as follows:inorganic fertilizer 1 (A:N-P-K ratio of 22:8:15 and total effective nutrient content ≥ 45%);inorganic fertilizer 2 (B:N-P-K ratio of 16:16:16 and total effective nutrient content ≥ 48%);organic fertilizer (C:fermented pigeon manure);green manure (D:Vicia villosacv.varglabrescens);and no fertilization control:CK. The results showed that soil nutrients,soil enzyme activities,soil microbial populations and plant biomass under all fertilizer treatments were higher than those in control group,with data in C being the highest among all treatments. Soil nutrients were positively correlated with fungi,nitrogen-fixing bacteria and above-ground biomass,and negatively correlated with bacteria and actinomycetes. The above-ground biomass of bamboo seedlings demonstrated positive correlations with soil nutrients,catalase,acid phosphatase,urease,fungi and nitrogen-fixing bacteria,and negative correlations with bacteria and actinomycetes. The correlations between branch fresh weight and hydrolysable nitrogen and fungi were highly significant (P<0.01),and the correlations between branch fresh weight and total nitrogen,total phosphorus,available phosphorus and nitrogen-fixing bacteria were significant (P<0.05). The correlation between culm fresh weight and acid phosphatase was significant. In general,the soil quality was ranked as C>D>B>A>CK,and treatment C had the largest positive impact on soil quality while the effect of treatment A was weakest.
The Importance of Establishing the Storage Mechanism of Bamboo Chips for Papermaking
JIA Hao, FEI Ben-hua, SUN Feng-bo, MA Qian-li, SU Na
2022, 41(1): 74-79. doi: 10.12390/jbr2022050
Abstract(252) PDF(32)
Being abundant in nature,bamboo plants boast high fiber content and superior fiber quality,making them one of the ideal raw materials for papermaking. The technology of preparing paper pulp from bamboo has become sophisticated,and large-scale production has been realized,which represents an emerging sector of papermaking industry in China. Bamboo has specific growth periods and must be harvested at appropriate ages. Bamboo harvesting is a seasonal practice,and rainy seasons and busy farming seasons shall be avoided. Bamboo chips have a storage period and a stabilization period. The supply of standard bamboo chips to paper factories ought to be continuous and quantifiable. Therefore,establishing a storage mechanism of semi-finished bamboo products for pulp making is essential to improving the industrial chain of bamboo papermaking. Only by establishing a robust warehousing chain can we ensure the orderly supply of raw materials,enhance farmers' income,and provide new market space and growth levers for local economic development. The operation of warehousing mechanism is of considerable strategic significance for unleashing the full potential of local bamboo resources and integrating the development of primary,secondary and tertiary industries.
Standardized Cultivation Techniques of Morchella spp. Under Moso Bamboo Canopy
LV Xiao-dong, HUANG Xuan, LI Xian-feng, YU Gang-lei, BAO Jin-liang, LU Shu-fang, WANG An-ke, BI Yu-fang
2022, 41(1): 80-84. doi: 10.12390/jbr2022060
Abstract(411) PDF(42)
Morchella spp. are a group of rare edible fungi with promising market prospect and considerable economic benefits. Presently,they rely on field cultivation. Zhejiang Province is composed of 70% mountains,10% waters and 20% farmland. Though moso bamboo resources are abundant,the economic profit of bamboo forest has yet to meet the expectations. This paper demonstrated the efficient cultivation techniques of interplanting Morchella in moso bamboo forests. The growth environment,forest conditions,cultivation substrates and production measures ofMorchella spp. cultivated in moso bamboo forests were summarized,and some specific cultivation techniques were proposed.
Application of Bamboo Culture in Shandong Province to Create the Most Beautiful Bamboo Landscape in Northern China
REN Jing-jun, FANG Wei
2022, 41(1): 85-92. doi: 10.12390/jbr2022053
Abstract(348) PDF(47)
Bamboo culture in Shandong Province boasts a long history and rich connotations with distinct characteristics of northern China. Based on bamboo culture in Shandong,it is proposed to create a beautiful bamboo landscape in northern China,which integrates distinctive scenic features,prosperous industrial development and bountiful cultural implications. The comprehensive functions of cultural presentation,ecological protection,landscape beautification and rural revitalization should be fully realized.