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[1]GU Wen,WANG Ji-jun,QI Zhi-juan.Coupling Relationship of Ecological Agro-system with Commodity in Different Optimized Scenarios in Xiannangou Watershed[J].Research of Soil and Water Conservation,2014,21(05):163-168.

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Coupling Relationship of Ecological Agro-system with Commodity in Different Optimized Scenarios in Xiannangou Watershed

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 05 Page number: 163-168 Column: Public date: 2014-10-28

Title:: Coupling Relationship of Ecological Agro-system with Commodity in Different Optimized Scenarios in Xiannangou Watershed

Author(s):: GU Wen^1,2, WANG Ji-jun^1,3, QI Zhi-juan¹; 1. Institute of Soil and Water Conservation CAS & MWR, Yangling, Shaanxi 712100, China;
2. Yantai Water Building Conservancy Investigation & Desing Academy, Yantai, Shandong 264000, China;
3. Northwest A & F University, Yangling, Shaanxi 712100, China

Keywords:: ecological agricultural system with commodity (EASC); coupling process model; coupling trend; optimized scenario; Xiannangou Watershed

CLC:: F303.4

DOI:: -

Abstract:: Based on the coupling trend analysis of ecological agricultural system with commodity(EASC) in Xiannangou watershed after sloping land conversion program (SLCP), and optimized project of EASC in this watershed, this paper predicted the coupling relationship in Xiannangou watershed at the phase of system in the chain network construction and the optimized coupling phase of agricultural economic system and agricultural ecosystem by using coupling process model. Results showed that EASC of Xiannangou watershed is at the phase of coordinated development after the implementation of SLCP. And the comprehensive index of agroecological system and agricultural economic system are both growing continually. When agroecological system reaches the self-adjusting tipping point, the agricultural economic system evolution speed of the status quo of the development trend & the phase of EASC in the chain network construction & the optimized coupling phase of agricultural economic system and agricultural ecosystem respectively follow the formulas of V_En(t) =0.0673El(t) & V_En(t) =0.0913El(t) and V_En(t) =0.0999El(t). The problems of EASC health and sustainable development are solved by the completed system in the chain network construction, the reasonable utilization of resources and the development of carbon sequestration forestry, which improves the system function at the same time.

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