桂西北喀斯特区域的耕地安全性——以环江毛南族自治县为例

The Cultivated Land Security in the Northwest of Guangxi Province A Case Study of Huanjiang County

桂西北喀斯特区域是我国西部主要生态脆弱区之一。该区人地矛盾突出,耕地后备资源分布不均,局部水土流失和土壤贫瘠化加剧,农田被挤占和环境污染日趋严重,对区域的耕地安全造成了很大威胁。为实现桂西北喀斯特区域耕地安全,其主要对策是:控制人口增长,实施适度异地移民安置;严格控制非农建设用地;加强中低产田改造力度;开发丘陵区缓坡荒草地和建立耕地动态监测与预警系统。

Northwest of Guangxi is one region of most weak ecosystem environment in China.At present,Northwest of Guangxi was facing with several major problems in terms of the cultivated land security.Firstly,the more and more obvious contrasted between population expansion and cultivated land shrinkage were found.Secondly,the distributing of the uncultivated-land resource was discordant obviously.Thirdly,the protection of cultivated land was facing with the increasingly strong conflict from non-agricultural activities.Fourthly,water and soil in some parts were flowing away,resulting in cultivated land degradation in quality;fifthly,some farmland was occupied and its circumstance was polluted increasingly. In order to realize the cultivated land security of Huanjiang County,the following countermeasures were suggested.Firstly,the population has to be controlled,some person in karst region have to been emigrated;secondly,the area of the non-agriculture used land should be controlled to keep the quantity of cultivated land within limits;thirdly,the relationship between urban,township and the protection for cultivated land has to be further coordinated;Fourthly,the dealing of the cultivated-land should be led correctly to realize the cultivated-land run in dimensions;fifthly, the cultivated land dynamic inspecting and presentiment system should be established to realize the land-management modernization.