2020 Vol. 39, No. 1

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Research Progress on Bamboo and Rattan Technology in Southeast Asian Countries along the Belt and Road
CHEN Ke-yi, LI Zhi-yong
2020, 39(1): 1-12.
Abstract(1439) PDF(61)
Abstract:
Bamboo and rattan resources have great comprehensive benefits, and science and technology are the key factors to ensure them to give full play in economic construction, improvement of people's livelihood and ecological maintenance. There are abundant bamboo and rattan resources in Southeast Asia. With the continuous deepening of the Belt and Road construction, it provides an opportunity for China and Southeast Asian countries to carry out international cooperation in bamboo and rattan science and technology. Taking 11 Southeast Asian countries along the Belt and Road as research object, this paper aims to analyze and summarize the development of bamboo and rattan technology in this region through literature review and data statistics. The results showed that: (1) the scientific and technological research on bamboo and rattan in Southeast Asia was insufficient, and the development levels varied with countries, and Malaysia and Indonesia had relatively strong comprehensive strength; (2) the research results were mainly in the form of scientific and technological journal papers, while the number of patent results is very few, and the technology transfer and transformation ability was weak; (3) the research content focused on the applied researches and payed little attention to the basic theoretical study; (4) there are few researchers and research institutions, and the level of support for the development of bamboo and rattan technology is limited. Generally speaking, there are many problems, such as weak science and technology foundation, mismatch between science and technology innovation ability and industrial development scale, and low application level of bamboo and rattan achievements. China and Southeast Asia countries should strengthen scientific and technological cooperation on bamboo and rattan. It is suggested that we should focus on the top-level design of scientific and technological cooperation, highlight the important areas of scientific and technological cooperation, enrich the platforms for scientific and technological cooperation, and expand educational and training cooperation models.
Research Progress of International Bamboo Forest Carbon Sequestration in the Last 30 Years Based on Bibliometric Analysis
ZHANG Hong-yan, ZHOU Yu-feng, ZHANG Yuan, XU Xiao-jun, LI Chong, XU Lin
2020, 39(1): 13-23.
Abstract(1609) PDF(107)
Abstract:
Based on the method of bibliometrics,the paper aims to evaluate the international research progress of bamboo carbon sequestration,introduce its international research frontier,and further promote its development in China. Using Vosviewer software and Bibliometrics method,the course of international bamboo carbon sequestration research in the past 30 years was analyzed based on the core collection of web of science database. The results showed that the number of literatures on international bamboo carbon sequestration research increased in a blowout way. Bamboo carbon sequestration research was mainly concentrated in China,the United States and Japan,and the authors presented the pattern of large dispersion and small aggregation. The research directions showed a diversified trend,and most research has been done in the field of environmental science. The funding for bamboo carbon sequestration research was mainly from the National Natural Science Foundation of China, totally,354 references was funded by the NNSF with the highest h-index. At present,the research content of bamboo carbon sequestration is gradually diversified. In recent years,it has become a research hotspot in the precision monitoring of bamboo ecosystem carbon sequestration,the effect mechanism of bamboo carbon sequestration,the mechanism of soil microbe and soil carbon cycle. Through the analysis of key words co-occurrence at home and abroad,this paper revealed the background of the whole research in the field of bamboo carbon sequestration,analyzed its stage process,and described its hot spot and development trend. This may has certain reference value for the future research.
Research Progress on Water of Cell Wall of Bamboo
YUAN Jing, FANG Chang-hua, ZHANG Shu-qin, CHEN Mei-ling, CHEN Qi, LIU Rong, LUO Jun-ji, FEI Benhua
2020, 39(1): 24-32.
Abstract(1415) PDF(65)
Abstract:
Water content in biomass materials is closely related to the properties of cell wall materials, it is of great significance to study the regularity between them for the efficient use of cell wall materials. In this article, the research results on bamboo fiber saturation point, cell wall moisture type, and moisture related test equipment and methods were summarized. The non-uniformity of the bamboo fiber saturation point research was pointed out, the hygroscopic desorption and hysteresis processes were analyzed, and the characteristics of water change in the wood at the micro scale were summarized. There are still many questions to be answered about the distribution of water in the microscopic bamboo, its existence location, the changing rules and the interaction mechanism with the cell wall. It is necessary to promote the development of bamboo basic and applied research.
The Environmental Factors Affecting the Change of Sizhujian in Weihe River
ZHAO Tian-jiao
2020, 39(1): 33-37.
Abstract(1522) PDF(50)
Abstract:
The Sizhujian is the administrative agency of the official bamboo plantation established by the state. The growth of bamboo is affected by changes in the natural environment. In a way, the planting of economic bamboo forests reflects environmental changes in a place. There are various environmental factors that influence the establishment of the Sizhujian, but the most important one is the change of the natural environment.
The Research System and Application of Ornamental Bamboo Forests on Human Physiological and Psychological Response
ZHU Zhi-xian, CHEN Qi-bing
2020, 39(1): 38-45.
Abstract(1509) PDF(63)
Abstract:
Based on the social demand for environment from the perspective of public health, this paper introduced a systematic study of the physiological and psychological effects of the ornamental bamboo forests from the various aspects of different team members. Firstly, in the perspective of sensory perception, the physiological and psychological responses through the stimulation of sense of sight and sound were studied. Secondly, the effects of individual ornamental bamboo and the undergrowth arrangement of the bamboo forests on people's physiology and psychology were explored. Thirdly, through the immersive experience, the physiological and psychological effects of the behavior modes at the micro-level of the unit bamboo area was researched, then, a long-time observation on different eco-factors in integrated environment of the representative ornamental bamboo forests was made to explore the interaction between the physiological and psychological indexes for different sexes in different seasons. In summary, it revealed the functional mechanism of health care of the ornamental bamboo forests. It may serve as a guide for the construction of health-care ornamental bamboo forests and improving human settlements.
Experimental Study on Ultrasonic Wave Velocity and Compression Performance of Small Glued Bamboo Specimens
ZHOU Nian-qiang, CHENG Guo, ZHAO Long-long
2020, 39(1): 46-52.
Abstract(1585) PDF(62)
Abstract:
As a deep processing product of bamboo, the glued bamboo material has the characteristics of high strength, uniform performance, good suitability for industrial production and processing. In order to study the mechanical properties of the glued bamboo materials, seven groups of 70 small glued bamboo specimens with different stacking directions and lengths were tested by ultrasonic wave velocity and axial compressive strength. The results showed that the glued bamboo material had high strength, and the main failure mode was the substrate failure rather than the delamination. The lamination direction of the glued substrate had a great influence on the ultrasonic velocity, stiffness and axial compressive strength, and the ultrasonic velocity was correlated with the strength and elastic modulus to a certain degree. Therefore, the strength and elastic modulus of the glued bamboo specimen can be non-destructively tested based on the ultrasonic wave velocity index. According to the compressive strength curve of each specimen, it can be found that the strength of the parallel compression specimen is significantly higher than that of the two other types of transverse compression specimens, the latter can still produce strength improvement in the later stage of the test, and the three types of specimens have greater plastic deformation capacity, and the different mechanical properties of the three types of specimens can make them be used in different scenarios.
Experimental Study on Vertical Load Bearing Capacity of Wall Panel with Wood-frame Covered by Bamboo Strips
ZHOU Hao-chen, BAI Wen-feng, SU He-xian
2020, 39(1): 53-60.
Abstract(1864) PDF(58)
Abstract:
In order to study the vertical load bearing capacity of wall panel with wood-framed covered by orthogonal oblique placement bamboo strips, three types of composite wall panels specimens, i.e. double-sided bamboo strips, bamboo strips-gypsum boards, and laminate-gypsum boards, were tested to investigate the failure forms, load-deformation curves, and ultimate bearing capacities. The results showed that in the early stage of wall failure, the surface bamboo strips were bent, and the middle parts of the laminate board and the gypsum board were bent. With the load increasing, some nails connecting the laminate board and the gypsum board to the wood frame were pulled out, and some of the bamboo strips bent further. The wall panel damaged by the buckling of vertical keels in the end. The orthogonal placement bamboo strips improved the axial load carrying capacity of the specimen. The ductility of wall panel with bamboo strips was better than that of the laminate board and gypsum board covered wall panel specimen. This indicates that the wall panel with wood-frame covered by bamboo strips has potential engineering application value, and it is beneficial for subsequent theoretical analysis.
The Scientific Name of Phyllostachys edulis (Carr.) J. Houzeau ‘Quadrangulata’
GAO Li-qin, CUI Ling, LI Xue-mei, YU Fen, YANG Guang-yao, ZHANG Wen-gen
2020, 39(1): 61-64.
Abstract(1713) PDF(56)
Abstract:
Scientific name is the foundation of plant research and academic communication. Recently, the scientific name of ‘Quadrangulata’, a cultivar of Phyllostachys edulis, has been changed for many times, and needs to be revised. Here, based on literature, specimens and field investigation, the scientific name of Phyllostachys edulis ‘Quadrangulata’ was discussed and illustrated, this may provide a reference for the production, development and utilization of the bamboo and its follow-up study.
A New Cultivar of Phyllostachys edulis -‘Bicanna’
ZHANG Wen-gen, LI Xue-mei, GUO Chun-ce, YANG Guang-yao, YU Fen
2020, 39(1): 65-67.
Abstract(1575) PDF(56)
Abstract:
Phyllostachys edulis ‘Bicanna’, found from Nanchang City, Jiangxi, is described as a new cultivar of Phyllostachys edulis. It resembles Ph. edulis and its two cultivar ‘Pachyloen’ and ‘Quadrangulata’, but differs by nearly tetragonal culm with two interlinked lacunae, as an ‘8’ shape from the transverse-sectional view.
Green-dragon Bamboo-a New Variety and New Cultivar of Phyllostachys edulis
WANG Hai-xia, CHENG Ping, ZENG Qing-nan, YU Lin
2020, 39(1): 68-72.
Abstract(1798) PDF(74)
Abstract:
The green-dragon bamboo is a new variety and new cultivar of Phyllostachys edulis. In this paper,the ecological characteristics,phenotypic specificity,growth rule and rhizome system structure of the green-dragon bamboo were introduced. It was defined as a new variety of Moso bamboo,its Latin name is corrected as Phyllostachys edulis ‘curviculmis’.
The Response of Stoichiometry of Leaf Carbon,Nitrogen and Phosphorus of Phyllostachys edulis Forests to Altitude
HUANG Shu-rong, XIE Yan-yan, CHEN Shuang-lin, GUO Zi-wu
2020, 39(1): 73-78.
Abstract(1588) PDF(102)
Abstract:
Phyllostachys edulis is the most important economic bamboo species,and distributes vertically along altitudes. The stoichiometry of leaf carbon,nitrogen and phosphorus of Phyllostachys edulis forests at various altitude was studied,so as to guide the management and fertilization of Ph. edulis forests. The concentrations of leaf carbon,nitrogen and phosphorus of Ph. edulis forests at three different altitudes were determined,and stoichiometry and allometry were analyzed. The results showed that the concentration of leaf carbon,nitrogen and phosphorus and N:P ratios decreased,while ratios of C:N and C:P increased with bamboo age increasing. Furthermore,the concentration of leaf carbon,nitrogen and phosphorus of the 1st age class bamboos were all higher than that of the 2nd and 3rd age class bamboos., There were no difference in the concentration and its stoichiometry of leaf carbon,nitrogen and phosphorus between the 2nd and 3rd age class bamboos. With the altitude increasing,leaf carbon deceased slightly,while leaf nitrogen and phosphorus decreased greatly,. Of which,leaf nitrogen and phosphorus of Ph. edulis from low and medium altitude were all higher obviously than that of high altitude. No significant difference in leaf nitrogen of between low and medium altitude was observed,but the difference in leaf phosphorus between them was significant. With the altitude increasing,leaf C:N,C:P,N:P ratios increased dramatically. Leaf C:N of low and medium altitude were greatly higher than that of high altitude,and leaf N:P of medium and high altitude were obviously higher than that of low altitude. There were significant differences of C:P among the three altitudes. With the altitude increasing,leaf C:N,C:P,N:P ratios increased. Leaf C:N of low and medium altitude were greatly higher than that of high altitude,and leaf N:P of medium and high altitude were obviously higher than that of low altitude. There were significant differences of C:P among the three altitudes. There were significant positive allometric growth among leaf carbon,nitrogen and phosphorus. With the altitudes increasing,allometric exponent between leaf carbon-nitrogen,and carbon-phosphorus decreased obviously,and that of N-P increased dramatically. Thus,with the attitude increasing,the leaf nitrogen and phosphorus decreased,and their use efficiency increased greatly,yet,phosphorus limitation to Phyllostachys edulis growth enhanced. So more phosphorus should be added at high altitude during the bamboo management.
Impact of Different Nitrogen Fertilizer on Growth and Development of Bambusa emeiensis Shoots
TAN Jia-rui, CHEN Yu-peng, XU Gang, REN Peng, CAO Ying, HU Shang-lian
2020, 39(1): 79-85.
Abstract(1416) PDF(62)
Abstract:
It is of great significance to study the influence of NO3--N,NH4+-N and (-CONH2) on the growth and development of bamboo shoots,so as to provide a theoretical for the growth regulation and quality cultivation of Bambusa emeiensis and to reduce the nitrogen pollution in forest. By setting 4 treatments,the control group (CK) was only applied with phosphate fertilizer and potassium fertilizer,T1 was applied with (-CONH2),phosphate fertilizer and potash fertilizer,T2 was applied with NO3--N,phosphate fertilizer and potash fertilizer,T3 was applied with NH4+-N,phosphorus fertilizer and potash fertilizer,the effects of different forms of nitrogen fertilizer on the growth and development of Bambusa emeiensis were studied. The results showed that the dynamics of the shooting number of Bambusa emeiensis showed an s-shaped curve for all treatments of different forms of nitrogen fertilizer. The daily average cumulative shooting number of amide-nitrogen fertilizer treatment was the highest,which was 1.23 times higher than that without nitrogen fertilizer treatment. The second was the nitrate nitrogen fertilizer treatment,which was 1.19 times higher than that without nitrogen fertilizer treatment,while the lowest was the ammonium nitrogen fertilizer treatment. The shooting number treated with amide nitrogen fertilizer was the most,while that treated without nitrogen fertilizer treatment was the least. The lignifications of the shoots treated with ammonium nitrogen fertilizer was earlier than that treated with amide nitrogen and nitrate nitrogen fertilizer.
Bamboo Weaving Process Characteristics in Yunnan
SHI Jiang-jing, WEI Ke-liang, FEI Ben-hua, MA Xin-xin, CHEN Hong
2020, 39(1): 86-89.
Abstract(906) PDF(94)
Abstract:
The distribution of bamboo forests and bamboo species in Yunnan Province is one of the areas with the richest bamboo resources in China, and Yunnan is called the "hometown of bamboo in the world". Bamboo weaving in Yunnan has a long history and rich cultural connotation. It is a treasure of traditional Chinese handicrafts and is listed as a national intangible cultural heritage. This paper summarized the characteristics and commonness of Daizu bamboo weaving, Yiliang bamboo weaving and Suijiang bamboo weaving in Yunnan.
Bamboo Weaving Technology in Sichuan Province
WU Jie-yu, CHEN Hong, WU Zhi-hui, FEI Ben-hua, ZHNAG Wen-fu
2020, 39(1): 90-94.
Abstract(910) PDF(203)
Abstract:
Sichuan is a large province of intangible cultural heritage resources in China. Its abundant cultural heritage has bred Sichuan's unique bamboo weaving culture and created many exquisite bamboo weaving handicrafts. We briefly summarized and introduced the representative bamboo weaving techniques in various regions of Sichuan, including porcelain placenta bamboo weaving in Qionglai, Chengdu, Qingshen bamboo weaving, Liu bamboo weaving in Quxian, Gongshan in Zigong, Daoming Bamboo Weaving in Chongzhou. This paper mainly elaborated the characteristics of waving process, weaving skills, and the specification of these typical weaving technologies. It may help people to understand deeply the weaving technologies in Sichuan and to think about how to inherit and innovate the bamboo weaving technology in the era that full of science and technology.

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