区域农业可持续发展的生态安全及其评价研究

资源、生态环境是区域农业可持续发展的核心和基础。农业可持续发展的生态安全是指农业赖以发展的自然资源、生态环境处于一种不受威胁、没有危险的健康、平衡的状态 ,具有战略性、整体性、区域性、层次性和阶段性等特点。文章以浙江省嘉兴市为例 ,讨论了区域农业可持续发展的生态安全评价的基本过程和方法 ,提出了包括资源生态环境压力、质量和保护整治能力三方面23项指标在内的生态安全评价的指标体系 ,以及不安全指标阈值的确定和不安全指数的计算方法 ,提出了区域农业可持续发展的生态安全建设的途径和对策。

Study on ecological safety and its evaluation of regional agricultural sustainable development

Resources and environment are the key part and base for regional agricultural sustainable development.Ecological safety for agricultural and rural development means that resources and environment on which agricultural and rural development depend are balance,and agro ecosystem is health.There are many characteristics on ecological safety,such as strategy,integrity,regionality,hierarchicity,dynamic and periodicity.As a case study of Jiaxing city,Zhejiang province,the paper discusses the method and process of evaluation of ecological safety on agricultural sustainable development,and identifies an indicator system of ecological safety that has 23 indicators group on resource ecology environment pressure,quality and protection ability.Mathematics model on indicators calculation is set up.Indicator standards on ecological safety are given.The approach to and strategy for constructing ecological safety on agricultural sustainable development are pointed out by taking Jiaxing city as a case in this article as well.