摘要
对农牧交错区的典型地段内蒙古多伦县的耕地变化情况进行了分析 ,结果表明 :多伦县耕地面积自七十年代末起呈现逐年增加的趋势 ,总面积增加了 2 .9万 hm2 .全县耕地面积增加与黑山嘴乡、西干沟乡、大河口乡、三道沟乡、大北沟乡和十五号乡等乡的面积增加具有极显著的正相关关系 .多伦县农作物产量与耕地面积具有显著的正相关关系 .耕地面积的增加除带来作物产量增加的正效益外 ,同时也对环境产生负面影响 。
The changes of ploughland were analysed from 1965 to 1999 on Agriculture Animal Husbandry Ecotone DUO LUN.The results are as follow:the area of ploughland have increased from the seventies in DUO LUN, the area have increased 29000 hm 2 .The increase of area of ploughland of DUO LUN county were sorely marked positive correlation with HSZ country,XGG country,DHK country,SDG country,DBG country and SWH country.The crop yield were marked positive correlation with area of ploughland on DUO LUN county. The increasing area of ploughland net only have crop yield were increased but also have negative effect to enviroment ,lead to enviroment quality degression.
出处
《内蒙古大学学报（自然科学版）》
CAS
CSCD
北大核心
2001年第6期657-660,共4页
Journal of Inner Mongolia University：Natural Science Edition
基金
国家重点基础研究发展规划 G2 0 0 0 0 1 860 4
国家自然科学基金项目 (3 9760 0 2 4 )
中国科学院知识创新重大项目 (KSCX1 -0 8)资助
