摘要
采用类型划分结合典型调查的方法,研究吕梁山生态功能区24县的耕地利用与抛荒情况。结果表明,在吕梁山南部,基本不存在耕地抛荒问题;在吕梁山中部,主要表现为红枣经济林的抛荒;在吕梁山北部,耕地抛荒比较普遍,耕地利用的限制因子主要为海拔高带来的热量资源不足和坡耕地带来的机械耕作困难;究其原因,耕地抛荒、农业结构调整和退耕还林是边际耕地的3种可替代利用状态,物质服务成本实现、人工成本实现、平均利润实现是耕地抛荒、老年人自给农业、年轻人农场农业的决策临界点。在吕梁山中部和北部,在农业结构调整困难和农业结构调整后经济效益很低的区域,宜增加退耕还林指标,核减耕地与基本农田保护面积,把耕地抛荒发展为生态服务价值高的生态林地。
This paper studies the cultivated land utilization and abandonment in 24 counties of Lüliang Mountain Ecological Function Area by the method of type division and typical investigation.The results showed that in the south of Lüliang Mountain,there was basically no problem of cultivated land abandonment;in the middle part of Lüliang Mountain,it was mainly manifested in the abandonment of red jujube economic forest;in the north of Lüliang Mountain,the cultivated land abandonment was relatively common,and the limiting factors of cultivated land use were mainly insufficient heat resources caused by high altitude and mechanical farming difficulties caused by sloping farmland;the reason was that the farmland abandonment,the agricultural structure adjustment and the conversion of cultivated land to forests were the three alternative utilization states of marginal cultivated land.Material service cost realization,labor cost realization and average profit realization were the critical points of decision-making for the farmland abandonment,self-sufficient agriculture for the elderly and farm agriculture for the young.In the middle and north of Lüliang Mountain,in the areas where the adjustment of agricultural structure was difficult and the economic benefit was very low after the adjustment of agricultural structure,the index of returning farmland to forest should be increased,the protected area of cultivated land and basic farmland should be reduced,and the cultivated land should be abandoned and developed into ecological forest land with high ecological service value.
作者
韩小英
王静
殷海善
HAN Xiao-ying;WANG Jing;YIN Hai-shan(College of Agricultural Economics and Management,Shanxi Agricultural University,Taiyuan,Shanxi 030006)
出处
《安徽农业科学》
CAS
2021年第12期56-59,共4页
Journal of Anhui Agricultural Sciences
基金
山西省土地整理中心项目“2019年度山西省耕地质量更新评价省级汇总”。
关键词
土地资源管理
耕地利用
退耕还林
抛荒情况
吕梁山区
Land resource management
Farmland utilization
Returning farmland to forests
Abandonment condition
Lüliang Mountain area
