摘要
为了摸清全区耕地地力现状,维护耕地数量和质量平衡。在GIS技术支持下,利用1:50000土地利用现状图、土壤图和行政区划图等叠置分析确定评价单元737个,研究选取立地条件、剖面性状、障碍因素、耕层状况、土壤管理等5个层次的14个评价因子。结果表明:全区3543.18 hm2耕地可分为7个等级,其中一等地355.24 hm2,二等地533.64 hm2,三等地575.72 hm2,四等地738.09 hm2,五等地503.53 hm2,六等地445.06 hm2,七等地391.90 hm2;分别占宜春市本级全区耕地总面积的10.03%、16.25%、16.25%、20.83%、14.21%、12.26%、11.06%。通过研究可知宜春市本级耕地地力现状总体较好。
With the help of Geographic Information System （GIS）, overlaying analysis of the 1：50000 current land-use map, soil map and administrative map, forming 737 patches, which were used as the basic management and evaluation cells. This research selected fourteen influencing factors from five aspects such as site conditions, section properties, obstacle factors, soil conditions, soil management, and the evaluation system and model of farmland fertility was built up. The results showed that, 3543.18 hm^2 cultivated land could be divided into seven grades, the grade one was 355.24 hm^2, the grade two was 533.64 hm^2, the grade three was 575.72 hm^2, the grade four was 738.09 hm^2, the grade five was 503.53 hm^2, the grade six was 445.06 hm^2, the grade seven was 391.90 hm^2, the fertility of grade one to seven account for 10.03%, 16.25%, 16.25%, 20.83%, 14.21%, 12.26%, 11.06%, respectively.
出处
《中国农学通报》
CSCD
2014年第20期270-275,共6页
Chinese Agricultural Science Bulletin
基金
中国科学院知识创新工程重大项目"江西省耕地地力评价研究"(KSCX1-YW-09)
赣鄱英才555项目"鄱阳湖生态经济区农业资源利用和生态环境保护的研究与应用"(2011061)
江西省社会科学规划项目"城镇化进程中土地合理利用研究"(12YJ09)
关键词
耕地地力评价
改良利用
宜春市本级
GIS
耕地等级
farmland fertility evaluation
improvement and utilization
Yichun City
GIS
farmland grading
