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运用生态系统健康的理论与方法研究粮食主产区农业生态系统健康问题具有重要的意义,以东北粮食主产区的典型区域吉林省为研究对象,基于构建的胁迫-状态-免疫(S-SI)与活力-结构组织-恢复力(V-O-R)农业生态系统健康评价指标体系,运用最优组合赋权法、综合评价模型、GIS空间分析技术和灰色斜率相似关联度诊断模型对2000—2011年吉林省农业生态系统健康的时空格局以及影响因子进行分析.结果表明:时间特征上,2000—2011年吉林省农业生态健康等级从“不健康级”状态向“较健康级”状态转变,农业生态系统健康水平正逐步提高.空间特征上,2000—2011年吉林省农业生态系统健康状况空间差异日益显著,中部地区的农业生态健康水平保持不变,东南部与西部正逐渐提高.吉林省农业生态系统健康水平提高的主要贡献因子是经济驱动、环境治理与社会发展,主要障碍因子是生态压力、组织结构与投入能力等.最后,提出相关措施进一步改善区域农业生态系统健康状况.
It is of great significance to study the health problems of agro-ecosystem in the main grain-producing areas by using the theory and method of ecosystem health. Taking Jilin Province, a typical area of main grain-producing areas in Northeast China, as the research object, based on the constructed stress-state-immune ) And VOR-Agro-Ecosystem Health Evaluation Index System, using the method of optimal combination weighting, comprehensive evaluation model, GIS spatial analysis technology and gray slope similarity correlation degree model, The spatial and temporal patterns of the agroecosystem health and the influencing factors were analyzed.The results showed that on the temporal characteristics, the agroecological health level of Jilin Province changed from “unhealthy class” to “more healthy class” in 2000-2011, The spatial and temporal characteristics of agro-ecosystem health are gradually increasing.As spatial characteristics, the spatial heterogeneity of agro-ecosystem health in Jilin Province is increasingly significant from 2000 to 2011. The agro-ecological health level in the central region remains unchanged while the southeastern and western regions are gradually increasing. The main contributors to the improvement of the health of agro-ecosystems are economic impetus, environmental governance and social development, with the main impediments stemming from Ecological stress, organizational structure and investment capabilities. Finally, measures to further improve the regional agricultural ecosystem health.