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机构地区:[1]湖北农学院湖北省涝渍地开发工程技术研究中心 [2]荆州市太湖农科所,湖北荆州434026
出 处:《长江流域资源与环境》2003年第1期83-87,共5页Resources and Environment in the Yangtze Basin
基 金:湖北省"九五"重大科技攻关项目"江汉平原四湖涝渍地综合开发研究"(962P0503).
摘 要:江汉平原涝渍地域由于所处的特殊地理位置、地形条件和不当人为干预等原因,洪、涝、渍灾害频繁发生,农业生态环境受损严重。主要表现为气候资源丰富,但变率较大,分布不均;水资源相对充足,但涝渍相随,旱涝并存,且旱涝灾害有加重的趋势,农业用水的水质劣化趋势加剧;涝渍地的生物资源比较丰富,但生产力低下;涝渍地域相对贫困人口增加,血吸虫疫区不断扩展。在简要描述江汉平原涝渍地域农业生态环境主要特征的基础上,给出了涝渍地农业生态环境评价的主要指标体系。根据这一评价指标体系,可以将用于种植业的涝渍地分为基本适宜、比较适宜和不太适宜三种类型,为涝渍地的综合治理及合理利用与保护提供理论依据。Because of the special geographical position,topographical condition and unsuitable interference in the waterlogging land of Jianghan Plain, the flood disaster and waterlogging disaster often occur, and the agricultural ecological environment is seriously damaged. The climate resource is rich in this area, with large variation and uneven distribution; The water resource is relatively enough, but the waterlogging and flood water on lowlying land always appear at the same season, the drought and waterlogging sometimes appear at the same year. The drought disaster and waterlogging disaster are becoming seriously; The biological resource is rich, but the productive force is low; The relatively poor people in waterlogging areas become more and more, the blood fluke area become biger. The paper describes the main features, and gives the appraise index system for the agricultural and ecological environment in the waterlogging land of Jianghan Plain. According to this appraise index system, the planting waterlogging land is divided into three types i.e. basically suitable, relatively suitable and non suitable land. This classification offers a theoretical basis for the harnessing,utilizing and protesting of waterlogging land.
关 键 词:农业生态环境 江汉平原 涝渍地 评价指标体系 生态恢复 生态重建 农业生态学
分 类 号:S181[农业科学—农业基础科学] X826[环境科学与工程—环境工程]
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