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- Title
东北粮食主产区农业生态系统健康格局与因子诊断--以吉林省为例.
- Authors
赵宏波; 郑辉; 苗长虹; 邵田田; 冯渊博
- Abstract
It is of great significance to study agroecosystem health in major grain producing areas based on the theory and method of ecosystem health. This paper selected Jilin Province as the study area, and an evaluation index system of agroecosystem health was built based on the SSI-VOR conceptual framework model. Using the optimal combined weights method, comprehensive evaluation assessment, GIS spatial analysis and grey slope similarity incidence models, the spatial-temporal pattern of agroecosystem health and influence factors were analyzed from 2000 to 2011 in Jilin Pro-vince. The results indicated that, temporally, the composite index of agroecosystem health showed a rising trend in Jilin Province from 1995 to 2011, and the agroecosystem health level changed from not healthy to relatively healthy; spatially, the spatial discrepancy of agroecosystem health level tended to become larger, which remained unchanged in central area, while was gradually improved in southeast and west. The main contributors which improved the agroecosystem health level were economic driving force, environmental management and social development, while the main 'dragging' factors were ecological pressure, organization structure and input capacity. Finally, relevant measures were put forward to improve the agroecosystem health condition.
- Publication
Yingyong Shengtai Xuebao, 2016, Vol 27, Issue 10, p3290
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.201610.033