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Benefit measurement of the soil and water conservation for ecological forestry engineering
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作者 文贵歧 田军 蔡纪文 《Journal of Forestry Research》 CAS CSCD 2000年第2期99-102,共4页
Data were collected from Three-north Region, Middle and upper reaches region of Yangtze River and Coastal region. By analysis of factors influencing soil erosion, the longitude, latitude, annual precipitation, and the... Data were collected from Three-north Region, Middle and upper reaches region of Yangtze River and Coastal region. By analysis of factors influencing soil erosion, the longitude, latitude, annual precipitation, and the slope degree were selected as regional independent variables and canopy density and stock litter were selected as independent variables, and integral diffusing models were established for evaluation of the benefit of soil and water conservation of forest. By solving the parameters of models using the package of STATISTICA, the Power function between independent variables and dependent variables was set up. The soil conservation amount of forest and economic values were estimated using the contrast method for the ecological forestry engineering of the above three areas. 展开更多
关键词 Ecological forestry engineering Soil and water conservation Benefit measurement Integral diffusing model
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From agricultural engineering and forestry engineering to biomechinfotronic engineering
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作者 Zheng Jiaqiang Zhou Hongping +1 位作者 Xu Youlin Xu Linyun 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2009年第1期72-78,共7页
The deterioration of global environment,decreasing of biological diversity,increasing of natural disasters,exhausting of biological resources and acceleration of desertification emphasize the need to provide the human... The deterioration of global environment,decreasing of biological diversity,increasing of natural disasters,exhausting of biological resources and acceleration of desertification emphasize the need to provide the human-beings with the suitable environments.Nowadays,precision agriculture and precision forestry have been emphasized to obtain the maximum output with minimum input and the least impact on the environment,so agricultural and forestry engineering systems require multi-disciplinary design groups to deal with some common interests and the concept of biomechinfotronics is needed.The word“biomechinfotronic”is introduced to describe the multidisciplinary aspects of this complex system.In the paper,the prospects,mission analysis,education system,research areas of biomechinfotronics are studied.The particular characteristics of biomechinfotronics are the synergistic integration of biological engineering with mechatronics,bioinformatics,infotronics,bioelectronics and intelligent computer systems for conducting common research and development and for recruiting and training students with wide specialties. 展开更多
关键词 agricultural and forestry engineering precision agriculture precision forestry biomechinfotronics MULTI-DISCIPLINARY sustainable development
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Three-dimensional Operation Design of Forest Engineering——A Case Study of Bagua Zhou in Nanjing City 被引量:1
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作者 顾弘宇 林涛 +1 位作者 周婧 于雪梅 《Agricultural Science & Technology》 CAS 2012年第7期1521-1523,1535,共4页
[Objective] The aim was to construct a virtuous eco-system covering multi-populations, multi-layers and multi-products and to explore timber production of physical and non-physical products, in order to extend product... [Objective] The aim was to construct a virtuous eco-system covering multi-populations, multi-layers and multi-products and to explore timber production of physical and non-physical products, in order to extend products operated in forestry engineering and seek a novel model for forestry engineering. [Method] A three-dimensional operation project was designed based on forestry lands in Bagua Zhou in Nanjing City. [Result] In the project, timber products, by-products in forest and relaxing products supplimented and supported each other, and a virtuous circle has been achieved. [Conclusion] The novel model makes simultaneous relaxing and working possible, which creat vaule together. 展开更多
关键词 forestry engineering Three-dimensional operation forestry development Entironment
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