摘要
采用遥感技术对四川盆地成渝地区耕地变化情况进行了调查分析。结果表明，改革开放以来，耕地及水稻播种面积在逐年减少，减少速度有逐步加快的趋势。本文讨论了造成耕地变化的主要因素并简要分析了调查区内地貌、经济发展条件不同的四个小区耕地变化情况。
The Change of the cultivated land in chengdu and chongqin regions of Sichuan Basin were investigated and analyzed using remote sensing technology. The result showed that the cultivated land and rice planting area were reducing year by year; the reduced degree increased gradually since open policy.This paper also discussed the main reasons that causing the change of the cultivated land and analyzed the change of the cultivated land in four districts at different land forms and economical conditions.
出处
《西南农业学报》
CSCD
1994年第4期49-53,共5页
Southwest China Journal of Agricultural Sciences
关键词
耕地变化
遥感调查
四川
成渝地区
Change of cultivated land Rice planting area Building land Remote sensing investigation
