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[1]WANG Qing-bin,WANG Xing-hua,XÜ,et al.Study on Agro-ecosystem Productivity and Productivity Stability Base on Rough Set Method[J].Research of Soil and Water Conservation,2010,17(06):212-219.

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Study on Agro-ecosystem Productivity and Productivity Stability Base on Rough Set Method

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 17 Number of periods: 2010 06 Page number: 212-219 Column: Public date: 2010-12-20

Title:: Study on Agro-ecosystem Productivity and Productivity Stability Base on Rough Set Method

Author(s):: WANG Qing-bin, WANG Xing-hua, XÜ Hao, MEN Ming-xin, WANG Shu-tao, LI Xin-wang; College of Resources and Environment Science, Hebei Agricultural University, Baoding, Hebei 071001, China

Keywords:: agro-ecosystem; productivity; stability; rough set; Xiongxian county

CLC:: F323.211

DOI:: -

Abstract:: The stability of ecosystem productivity and productivity are two different concepts, namely, they interact with each other. Based on the construction of the stability of territorial farmland system with full-scale, the rough set method, and a collection of GIS technology, quantitative analysis in the spatial distribution of productivity and stability of Xiongxian county, Hebei province was carried out. The results show that there is a big change of factors at different levels of the stability of ecosystem productivity and productivity. In the matter of productivity, the main factors controlling fluctuations of farmland ecosystem productivity in Xiongxian county is drainage conditions, soil organic matter, irrigation guarantee rate, soil total nitrogen, available nitrogen and potassium. Human factors and natural factors impacting on the productivity of the phenomenon appear alternately with the productivity rising. Human factors and the natural properties of soil are interacting in relatively low productivity areas and human factors are dominant in higher productivity areas. In the matter of stability of productivity, the stability of agro-ecosystem productivity controlling factors of space fluctuations are mainly nitrogen, soil configuration, saline conditions and organic matter. Controlling factors at different levels on the stability of the impact on productivity is not the same. Overall, the human role in stability of farmland ecosystem productivity of the Xiongxian county is the largest and natural properties of soil stability factor in the middle level is comparative with the human factors.

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