脆弱生态约束下贵州岩溶山区农业可持续发展  

Agricultural Sustainable Development in Guizhou Karst Mountainous Areas under Fragile Ecology Restriction

作　　者：楚文海[1] 苏维词[2] 鄢贵权[2] 杨先寿[1] 

机构地区：[1]贵州大学资源与环境工程学院,贵阳550003 [2]贵州科学院

出　　处：《中国农村水利水电》2007年第1期5-7,共3页China Rural Water and Hydropower

基　　金：国家社会科学基金(06XJY017);国家自然科学基金(40261003;40561006);贵州省优秀青年科技人才培养计划(黔科人合(2005)0513);重庆市教委科研项目(kj050808)联合资助

摘　　要：贵州岩溶地貌发育,山多地少,水土流失严重,生态环境恶化,农业生产条件差、水平低,发展可持续农业既是贵州特殊农业生态环境的客观要求,也是兴黔富农和实现农业现代化的必由之路,然而贵州岩溶山区脆弱的生态环境束缚着该区农业的可持续发展。对贵州岩溶山区生态环境脆弱性成因进行了分析,归纳为:地形的复杂性、地质环境的特殊性、降水的不均匀性和人为因素等4个方面。从土地农业生产、水资源利用和自然灾害等3个方面阐述了该区脆弱的生态环境对农业可持续发展的约束作用,最后提出了相应的对策措施。Guizhou Province is located in the southwest of China where the karst landforms are widely distributed and eco-environment is fragile. Most Guizhou areas are mountains or hills where the soil erosion is very serious, and the natural conditions of agriculture production are adverse, and the level and efficiency of agriculture produce is also very low. The only way to improve agricultural ecological environment, increase farmers＇ income and realize agricultural modernization in Guizhou Karst mountainous areas is to carry out sustainable development strategies, whereas fragile eco-environment restricts the agricultural sustainable development in the region. The paper analyzed the causes of the ecological environment fragility in Guizhou Karst mountain region, and clarified the causes as follows： complicated topography, geological environment particularity, rainfall uneven distribution, and human activity. The paper also pointed out the restrictions of fragile ecological environment on agricultural sustainable development from the aspects of agriculture production, water resources and natural disasters, etc. Finally, the corresponding countermeasures were suggested.

关 键 词：贵州岩溶山区 生态环境脆弱性 可持续发展 约束 

分 类 号：X171.4[环境科学与工程—环境科学]