2020 Vol. 39, No. 3

Display Method:
List of Bamboo Cultivars in China
SHI Jun-yi, WU Liang-ru
2020, 39(3): 1-11.
Abstract(688) PDF(168)
Abstract:
Bamboo cultivars are an important components of Chinese bamboo resources. By December 2020,according to the rules and requirements of the International Code of Nomenclature for Cultivated Plants (ICNCP),through International login (see*) and systematic revision and collation of traditional cultivars,there are 239 bamboo cultivars (including 7 hybrid bamboo cultivars) in China,involving 21 genera and 88 species. Their list is gathered here for the benefit of reference.
Study on Research and Development Progress of Chimonobambusa uitils Based on Biliometrics Analysis
DAI Li, ZHANG Xi, WU Liang-ru
2020, 39(3): 12-19.
Abstract(665) PDF(128)
Abstract:
Chimonobambusa uitils is a unique specie for bamboo shoots in southwest China,and also one of the most recommended bamboo species in the 12 characteristic and advantageous industries established by the rural industrial revolution in Guizhou province. Systemic analysis of the research and development status of this bamboo is conducive to promoting the high-quality development of bamboo industry. Based on Web of Science (WOS) and China National Knowledge Infrastructure (CNKI),it was collected that more than 130 published issued literatures by the relevant location of Chimonobambusa uitils in 1964-2020 at home and abroad and 10 master's papers. Visualization analysis of them showed that:Amount of research literature,reference literature and cited literature was wholly on rising,and the rapid growth after entering the 21st century. Amount of literatures was converged to mainstream journals,while the amount of literatures of authoritative journals was still less in the past 40 years. Literature amount of authors and institutions was distributed in 4 echelons,mainly concentrated in Guizhou province,Chongqing municipality and Yunnan province. Numbers of projects funded by the national science and technology support plan and the National Natural Science Foundation of China accounted for 61.76%,and another numbers of projects at provincial (city) level ranked as Guizhou province (26.47%),Sichuan province (5.88%) and Chongqing municipality (2.94%). In the four subject word grades of >3.0%,2.0-3.0%,1.0-2.0% and <1.0%,relative numbers was 21.05%,21.05%,47.37% and 10.53%,respectively. In the top 3 ranking of co-occurrence frequency with Chimonobambusa uitils,the theme words were bamboo shoots (16.33%),industrial development or young bamboo growth (8.16%),parent bamboo cultivation,bamboo shoot forest or harvesting and processing (6.12%);the secondary words were bamboo shoots (50.00%),tree layer (20.00%),altitude,morphological identification or compound (10.00%). It was systematically reviewed that hot research area literatures on bamboo forest characteristics,cultivation techniques,yield and quality of bamboo shoots,and put forward some new suggestions on the cultivation of bamboo shoot forest and the construction of the whole industrial chain led by the bamboo shoots industrial chain.
Investigation on Pests,Pathogenic Microorganism and Their Natural Enemies of Bamboo Plants in Beijing
ZHAI Jing-yu, ZHANG Ran, ZHAO Yu, XI Xin, DONG Xiao-fan, HUA Xin-yu, FU Yu
2020, 39(3): 20-26.
Abstract(707) PDF(89)
Abstract:
With the development of Beijing city,more and more bamboo plants are applied to the beautification of urban greening construction projects. At the same time,the harm of pests and pathogenic microorganisms is also a problem in the bamboo application. Therefore,in order to solve this problem,it is very necessary to the systematically and comprehensively identify the harmful organisms of bamboos,and to investigate their basic rule. From 2017 to 2020,in Beijing,the harmful organisms of bamboo plants in some parks,green belts along the second and third ring roads,the special zones of Beijing Botanical Garden,the green spaces in hospitals and communities were investigated. After classification and identification,there found totally 33 species of bamboo pests in Beijing,including 22 species of insect pests(7 species of scale insects,2 species of aphids,2 species of mites,3 species of bee,1 species of moth,1 species of weevil,1 species of fly,1 species of leafhopper,1 species of wax cicada,2 species of bugs,1 species of warthog),and 8 species of pathogenic microorganisms. Of which,15 species of pests and 8 species of pathogenic microorganisms were newly reported. Four categories of natural enemies (2 species of lacewing flies,3 species of aphid-eating flies,1 species of parasitic wasps,and 4 species of ladybugs) of these pests were found. The results of the investigation can provide a reference for the introduction and cultivation,conservation management and pest control of bamboo in Beijing.
Historic Bamboo Manuals and Their Cultural Inheritance
LI Da-qiang, FAN Bao-min
2020, 39(3): 27-33.
Abstract(728) PDF(105)
Abstract:
Bamboo culture occupies an important position in China's traditional culture, and bamboo manuals are important books to study the development of ancient bamboo culture in China. This paper focused on the bamboo manuals of the past dynasties, analyzed their characteristics and ideological differences, discussed the causes of their differences, and summarized the laws. The results showed that since the pre Qin period, bamboo has been used to convey morality and inscriptions. During the Wei and Jin Dynasties, bamboo culture ushered in the climax of development. In the Southern Dynasty, the first bamboo manual written by Dai Kaizhi appeared. After the inheritance and innovation of the past dynasties, the bamboo manuals have been constantly improved and enriched. Their contents and forms were expanded from botanical genealogy to bamboo personality, bamboo painting genealogy, and then to various kinds of bamboo genealogy of secular life. This process fully reflected the deepening of people's understanding and emotion of bamboo in different periods. At the same time, it is also the product of various social and historical factors superimposed in the inheritance and development of bamboo culture in different periods.
Dendrocalamus pulverulentoides (Poaceae: Bambusoideae), A New Bamboo Species from Guangdong,China
NIU Zheng-yang, TONG Yi-hua, NI Jing-bo, ZHANG Zhi-xian, XIA Nian-he
2020, 39(3): 34-39.
Abstract(724) PDF(98)
Abstract:
Dendrocalamus pulverulentoides N. H. Xia,J. B. Ni,Y. H. Tong & Z. Y. Niu,a new species from Danxia Mountain,Guangdong,China,is described and illustrated. The new species is morphologically similar to D. latiflorus,D. minor and D. pulverulentus,but differs in having a ring of brown sericeous hairs at the infranodal to intranodal regions,culm leaf sheaths with dense appressed brown setae at the middle and lower parts of the abaxial surface and several yellowish white vertical stripes near the margins,ca 2 mm tall culm sheath ligules with a concave and serrulate margin,and 7-16 foliage leaves per ultimate branch with broadly triangular auricles and 1-5 mm long oral setae.
A Review on Modern Bamboo Beam Structure and Mechanical Property
ZHU Jun-jie, MA Jing-wen, CAO Ming-xin, WANG Xiao-huan, FEI Bei-hua, WANG Xue-hua
2020, 39(3): 40-48.
Abstract(669) PDF(55)
Abstract:
Due to the serious environmental problems caused by modern building materials such as cement, concrete and metal in production, construction and use, bamboo has become a hot spot in scientific research and industrial application as its environmental protection and renewable advantages. Taking modern bamboo beam made by composite and recombination technology as object, this paper analyzed its structural forms, mechanical performances, testing methods and application characteristics. It was supposed to provide some new ideas for its application in modern architecture.
Effects of volatile components of Phyllostachys edulis on air negative ion and microorganisms
LV Jia-xin, WANG Xiang, XIANG Heng-wang, WEI Sai-jun, WANG Bin, GAO Yan, ZHANG Ru-min
2020, 39(3): 49-57.
Abstract(575) PDF(44)
Abstract:
In order to study the effects of of volatile organic compounds (VOCs) of Phyllostachys edulis on air microorganism,by using the dynamic systemic adsorption method and hot air stripping gas chromatography-mass spectrometry (TDS-GC-MS), the near natural Ph. edulis leaf VOCs,the composition and content of the VOCs in the Ph. edulis forest under near natural condition in different seasons, the concentrations of negative air ions and microorganisms in Ph. edulis forest were measured. The inhibition effect of volatiles on microorganisms was verified by microbe monomer test. The results showed that a total of 35 kinds of volatile substances were detected from a individual bamboo,including aldehydes (26.2%),esters (21.9%),alcohols (18.4%),terpenes (16.6%),etc. Thetypes and relative contents of VOCs of Ph. edulis forest were different between seasons,summer > spring > autumn. The aldehydes in spring and summer were 30.3 times and 39.8 times higher than that in autumn respectively. In spring,summer and autumn,the air anion concentration in the Ph. edulis grove was 1 030,1 975 and 547 per cubic centimeter respectively. The number of air microorganisms in the Ph. edulis varied dynamically in different seasons,and the concentration decreased significantly compared with the forest margin. The inhibition rates of bacteria in spring,summer and autumn were 72.4%,61.3% and 78.4%,respectively. The inhibition rate of fungi was 62.9%,59.7% and 72%.The inhibition rate of actinomycetes was 61.9%,58% and 72.1%.VOCs released by Ph. edulis can inhibit the growth of air microorganisms and promote the formation of NAI.
Effects of Bamboo Powder Content and Modification on the Properties of Polylacticacid-based Bamboo-plastic Composites
XUE Yi-fan, HAN Chen-yang, NI Zhong-jin, NI Yi-hua, LYU Yan
2020, 39(3): 58-66.
Abstract(596) PDF(64)
Abstract:
Using bamboo powder and polylactic acid as raw materials,a polylactic acid-based bamboo-plastic composite material was prepared by the hot press molding method. The effects of bamboo powder content and different modification methods on the properties of wood-plastic composites were studied. The results indicated that within a certain range,with the increase of bamboo powder content,the equilibrium torque,tensile strength,bending strength and water absorption of the material showed an upward trend. When the bamboo powder content exceeded 50%,the tensile strength and the bending strength showed a downward trend,while the flow performance,crystallinity and impact strength showed an overall downward trend. The surface of bamboo powder was modified by alkali treatment and silane coupling agent. Compared with the unmodified bamboo powder/polylactic acid composite material,the crystallinity of the composite material was increased by the alkali treatment,while decreased by the coupling agent modification. In order to improve the crystallinity of the composite material,the mechanical properties of the two modified composite materials have been enhanced,the interface compatibility of bamboo powder and polylactic acid has been improved,while the water absorption has decreased. Among them,modification of silane coupling agent improved the performance of composite materials more obviously.
Preparation and Characterization of Activated Carbon from Bambusa blumeana Schult.f with Steam Method
YING Wei-jun, ZHONG Jin-huan, ZHAO Ke-yu, ZHANG Wen-biao, HONG Rong-ping, QIU De-bin
2020, 39(3): 67-72.
Abstract(607) PDF(96)
Abstract:
The activated carbon was prepared from the Bambusa blumeana Schult.f charcoal by the steam activation method. The effects of activation temperature and time on the properties of the activated carbon were studied,the yield of activated carbon,ash content,iodine adsorption value and Methylene blue adsorption value were tested and analyzed. The results showed that when the activation temperature was 840℃ and the activation duration was 120 min,the carbon yield was 48.5%,the iodine adsorption value was 1 141.56 mg·g-1,the Methylene blue adsorption value was 150 mg·g-1,the ash content was 14.63% and the microporosity was 88.3%,the activated carbon has a large amount of pore structure and a large specific surface area,which is characterized by SEM.
Profile Density and Chemical Composition of Bamboo Non-adhesive Molded Materials
ZHANG Wei-gang, YE Jie-wang, ZHENG Fang-min, YU Xiao-ting, HUANG Lei, CHENG Liang
2020, 39(3): 73-77.
Abstract(474) PDF(42)
Abstract:
The bamboo residues were used as raw materials for hydrothermal treatment,high temperature carbonization,and hydrothermal carbonization pretreatments,and to prepare non-adhesive molded compact materials. The material color,profile density,XRD and infrared spectrum properties were analyzed. The results showed that the total color difference between high temperature carbonization and high temperature hydrothermal was greater than that of hydrothermal treatment,high temperature carbonization had a greater impact on material color than hydrothermal treatment. The density of the pretreated non-adhesive molded material increased rapidly within the range of 0~2mm,and the core layer distribution was relatively uniform. The total average density of the hydrothermal carbonized non-adhesive molded material was greater than that of hydrothermal treatment,high temperature carbonization and untreated distribution was uniform. Hydrothermal treatment increased the crystallinity of cellulose,while high temperature treatment reduced 5% and hydrothermal carbonization reduced 3.4% the crystallinity. High temperature carbonization and hydrothermal treatment had no effect on the characteristic peaks of cellulose,but changed the characteristic peaks of semi-fiber and lignin. High-temperature carbonization had a greater effect on the carbonyl group of the processing residue than hydrothermal treatment.
Identification of Key Areas of Visual Landscape in Yixing Bamboo Sea Based on Sensitivity-Subjective Preference Matrix
JIANG Xiao-yu, FAN Shao-hui, YIN Zi-xu, WANG Shu-mei, GUAN Feng-ying
2020, 39(3): 78-90.
Abstract(551) PDF(55)
Abstract:
In order to identify the key areas of visual landscape in Yixing Bamboo Sea,this paper focused on 11 viewing platforms,where large crowds gathered,in Yixing Bamboo Sea Provincial Forest Park,Jiangsu Province. ArcMap10.2 was used to deal with the three objective components of visual sensitivity,i.e. relative slope (Sa),relative distance (Sd) and probability of occurrence (St),and the landscape visual sensitivity was analyzed. The subjective preference scores of 70 professionals were obtained by using the beauty evaluation method (SBE method),and the results of GIS and SBE methods were combined,the importance-performance analysis (IPA) method was used to construct the sensitivity-subjective preference matrix of the visual landscape in the study area. The 11 viewing platforms in Yixing Bamboo Sea were divided into four visual landscape categories,and relevant suggestions for landscape protection,scenic spot planning and management were made accordingly. The results showed that the landscape sensitivity and subjective preference scores of the Bamboo Botanical Garden and Leisure Pool were high,being the "visual landscape key area". The First Peak in Southern Jiangsu and Jizhao Zen Temple had high subjective preference score and low landscape sensitivity,being the "natural development area". The Source of Taihu Lake,Entrance Square and Dragon Pool (a spring at the top of Mount Jade Maiden) had high landscape sensitivity and low subjective preference score,being the "priority improvement area". The landscape sensitivity and preference score of Lingbo Cable Bridge,Waterfall Pavilion and Bamboo Pavilion were low,they belonged to the "sub-priority improvement area". Through the construction of the matrix,both subjective and objective aspects were taken into account to evaluate the visual landscape,the GIS spatial analysis quantified the abstract visual landscape data,and the subjective preference score reflected the public's real feeling about the visual landscape quality. This may provide a method for landscape visual evaluation and key area identification in tourist areas.
Cultural Characteristics of Jiading Bamboo Carving
XU Xiang, CHEN Hong, ZHOU Jing-yu, ZHANG Wen-fu
2020, 39(3): 91-94.
Abstract(495) PDF(50)
Abstract:
Jiading bamboo carving is famous for its long historyand exquisite craftsmanship. It originated in Zhengde period of Ming Dynasty,flourished in Kangxi,Yongzheng,andQianlong periods of Qing Dynasty,declined in late Qing Dynasty,and was selected into the national intangible culture list in contemporary China. This paper mainly introduced the historical evolution,technological process and cultural value of Jiading bamboo carving technology,and gave some suggestions for the continuation of Jiading bamboo carving in the future so as to promote iits the new development.