摘要
本文以息烽县为代表论述了喀斯特环境农业生产的气候和土地资源特点，探讨了喀斯特生态环境粮食作物生产能力估算模型的建立、修正和应用及土地人口容量，认为限制喀斯特生态环境粮食作物生产能力的主要因子是土肥和水分条件。要改善喀斯特生态环境状况，必须增加农田投入，加强林业和水利设施建设。
This paper discusses the climatic and land resource conditions of agricutural production of Xifeng County,the representative of karst environment,and probes into the establishment,revision and application of a model for estimating grain potential productivity and population carrying capacity of land resources in karst ecologic environment. The conclusion is that the main factors that restrict the grain crops productivity karst ecologic environment are soil,fertilizer and moisture. In order to improve karst ecologic environment,the investment in farm land should be increased,construction of forestry and water conservancy projects enlarged,the population growth controlled and the overcarrying population removed.
出处
《中国岩溶》
CAS
CSCD
北大核心
1996年第4期391-397,共7页
Carsologica Sinica
基金
国家自然科学基金
贵州省科委计划项目
关键词
喀斯特
生态环境
粮食
生产能力
人口容量
贵州
Karst ecologic environment Grain productivity Population carrying capacity Guizhou
