JOURNAL OF NATURAL RESOURCES ›› 2010, Vol. 25 ›› Issue (11): 1887-1896.doi: 10.11849/zrzyxb.2010.11.008

• Resources Ecology • Previous Articles     Next Articles

Study on Coupling Relationship of Agricultural Eco-economic System Based on Farm Level in Northern Shaanxi Loess Hilly-Gully Region

WANG Ji-jun1, LI Hui2, SU Xin1, DU Na2   

  1. 1. Institute of Soil and Water Conservation, Northwest Agriculture and Forestry University, Institute of Soil and Water Conservation, CAS and Ministry of Water Resources, Yangling 712100, China;
    2. College of Resource and Environment, Northwest Agriculture and Forestry University, Yangling 712100, China
  • Received:2010-01-15 Revised:2010-07-05 Online:2010-11-20 Published:2010-11-20

Abstract: Coupling relationship of agricultural eco-economic system is a complex process, and it is an interactive result of latent variable and latent variable, latent variable and measurable variable and measurable variable and measurable variable. The complex relationship can be described sufficiently by construction of structural equation model. The results of the structure equation model of three typical areas of Wuqi County, mesoscale eco-agricultural demonstration experiment built by Ansai County and Baota District, and Mizhi county represent loess hilly-gully region, and the establishment and operation of each region indicate that the operation mode of agricultural eco-economic system reveals essential pattern of mutual coupling of agricultural industry and agricultural resources basically with the outside force of Grain for Green Project,but the status of coupled model does not make full use of agricultural resources, and the system coupling effect is low, the impact coefficients of agricultural industry and agricultural resources to the system coupling are 0.54 and 0.16, correlation coefficient between the agricultural industry and agricultural resources is only 0.28, that is to say, industrial development is not well supported by agricultural resources, which resulted in a nonobvious agricultural eco-economic system coupling effect, the existence of local "contrary to" posture, the potential loss phenomenon of forest and pasture resources associated with the industrial chain net. Therefore, the continuous improvement of the system coupling effect and increase economic benefits, the interactive process of agricultural industry and agricultural resources should be strengthened, in particular, the grass and trees and related industries should be developed. The effective use of forest and pasture resources should be promoted.

Key words: coupling relationship, agricultural eco-economic system, structural equation, farm level, northern Shaanxi loess hilly-gully region

CLC Number: 

  • F062.2