摘要
农村地区耕地“非粮化”现象日益明显,势必对粮食安全造成严重威胁.以龙南市为研究区,以第三次土地调查和地方统计年鉴为数据来源,采用ArcGIS10.0地理空间分析方法和数理统计分析方法,系统分析研究区的耕地“非粮化”空间特征及效益.结果表明:(Ⅰ)耕地“非粮化”现象明显,破碎度高,低地平原、缓坡地区的耕地“非粮化”程度高,道路、水域及水利设施、居民点指向性明显,北部、中南及西南地区分布集中;(Ⅱ)“非粮化”总面积的空间差异较大,“非粮化”率的空间差异不大.龙南、关西及武当3个乡镇的耕地“非粮化”效益较好,其他地区较一般.提出以下几条政策建议:开展土地整治,提高节约集约率,实行分区分类管控,制定合理的监管政策,合理规划农业产业布局,提高经济效益.
The phenomenon of"non-grainization"of cultivated land in rural areas is becoming more and more obvious,which is bound to pose a serious threat to food security.The results show that:(Ⅰ)The phenomenon of"non-grainization"of cultivated land is obvious,the degree of fragmentation is high,the degree of"non-grainization"of cultivated land in lowland plains and gentle slope areas is high,and the directivity of roads,waters,water conservancy facilities,and residential areas is obvious.The distribution in the southwest is concentrated;(Ⅱ)The spatial difference in the total area of"non-grained"is large,and the spatial difference of the rate of"non-grained"is not big.Longnan,Guanxi and Wudang 3 townships have better"non-grained"farmland benefits,while other areas are more general.The policy recommendations are proposed:carry out land remediation,increase the rate of conservation and intensiveness,implement zoning and classified management and control,formulate reasonable regulatory policies,rationally plan the layout of agricultural industries,and improve economic benefits.
作者
孙巍巍
陈永林
郭祥光
陈泽彬
郭林凤
杨贤房
林建平
SUN Weiwei;CHEN Yonglin;GUO Xiangguang;CHEN Zebing;GUO Linfeng;YANG Xianfang;LIN Jianping(School of Geography and Environmental Engineering,Gannan Normal University,Ganzhou 341000,China)
出处
《赣南师范大学学报》
2021年第6期97-102,共6页
Journal of Gannan Normal University
基金
江西省高校人文社科项目(GL20057,JC20151)
江西省教育厅科技项目(GJJ190761,190763)
江西省社科规划项目(20SH11)。
关键词
耕地“非粮化”
空间特征
效益
县域尺度
江西龙南市
"non-graining'" of cultivated land
spatial characteristics
benefits
county scale
I songnan city Jiangxi
