Analysis on coupling development of agricultural eco-economic system in Yan’an City under the background of gully control and land consolidation project

doi:10.13287/j.1001-9332.202009.020

Abstract

Abstract: The gully control and land consolidation project is another major project of ecological environment management in Yan’an City following the Grain-for-Green project. Understanding the development and changes of the coupling relationship within agricultural eco-economic system in Yan’an City under the background of gully control and land consolidation project has important implications for scientific evaluation of ecological and economic benefits of the project as well as the coordination and sustainable development of agricultural eco-economy in the Loess Plateau. By constructing the coupling coordination degree model and coupling degree model of agricultural eco-economy system, we quantitatively analyzed the change of comprehensive evaluation index, state of coupling coordination, and trend of coupling degree evolution of the agricultural eco-economic system in Yan’an City from 2010 to 2018. The results showed that the comprehensive evaluation index of agricultural ecology and agricultural economy systems in Yan’an City from 2010 to 2018 both followed an S-shaped growth curve, with consistent trend. The coupling coordination index of the agricultural eco-economic system increased from 0.51 to 0.72, while the coupling coordination state developed from the primary coordination level to a good coordination level. Such a result indicated continuous improvement of the relationship between agricultural ecology and economy in the region and the coupling relationship of the system were developing with the direction of mutual coordination. During the study period, the agricultural eco-economic system coupling evolution was complicated and experienced different stages, including decline coupling, coordination coupling, repair coupling, and coordination coupling again. The coupling relationship was at the stage of coordinated development of rapid economic growth in 2018. The gully control and land consolidation project promoted the coupled and coordinated development of agricultural eco-economic system, but with a lagging effect.

Key words: agricultural ecology, agricultural economy, coupling, gully control and land consolidation, Yan’an city

WANG Jing, Hu Yi, BAI Qing-jun. Analysis on coupling development of agricultural eco-economic system in Yan’an City under the background of gully control and land consolidation project[J]. Chinese Journal of Applied Ecology, 2020, 31(9): 3154-3162.

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