摘要
论文在分析河北省近50年来耕地数量动态变化的基础上,对1988～1995年间河北省耕地资源数量下降的状况及其构成进行了详尽的剖析,探讨了河北省耕地减少的原因,并提出了减缓耕地减少的对策。农业结构调整占地(占耕地总减少量的47%)是河北省耕地减少的主要原因;其次是非农建设占地和灾害毁地,分别占总减少量的22%和30%;在新增加的耕地类型中,开荒和复垦的比例分别占耕地总增加量的49%和44%,是耕地增加的主要来源。
This paper analyses the dramatic change of cultivated land during the last50years in Hebei Province.Based upon which,the situation and composition of cultivated land loss during1988～1995are examined.The causes of cultivated land loss are discussed and the countermea-sures are advanced.It is found out that the adjustment of agricultural structure is the main cause of cultivated land loss,which accounts for47%of the total amount of cultivated land loss;land devoting to non-agricultural constructions and damaged by natural hazards are the secondary causes,which respectively account for22%and30%of the newly added types of cultivated land,reclamation and reuse of abandoned land are the main sources of cultivated land increase,which respectively account for49%and44%of the total increased cultivated land.
出处
《自然资源学报》
CSSCI
CSCD
北大核心
2002年第1期123-128,共6页
Journal of Natural Resources
基金
中科院知识创新工程项目(KZCX2-310-01-05)
国家自然科学基金重点项目(49831020)。
