基于GIS技术的阆中市土地分级

Study of Langzhong Land Ratings Based on GIS Technology

将G IS技术引入阆中市土地分级研究中,应用其空间数据采集、处理和分析等功能,同时考虑坡度、速效磷、速效钾、有机质等肥力因素,对该地区的土地分级.研究结果表明阆中市土地以Ⅰ与Ⅱ级面积占比重较大,其中Ⅰ级72 152hm2,占38.6%,Ⅱ级65 231hm2,占34.9%,并且主要分布在阆中市中部与南部.

An analysis of Langzhong central area land ratings research has been made by the space function and data acquisition. Processing and analyszing the land with GIS technology, at the same time considering soil fertility factor and slopes, fast -acting phosphorus, fast -acting potassium, organic matter, we have made this local land graduation. The findings indicate Langzhongs local land is mainly Level Ⅰ and Leve Ⅱ , among which Level Ⅰ has 72 152hm^2 ,occupying 38.6% and Level Ⅱ has 65 231hm^2 ,occupying 34.9%. They and mainly distribute in the Langzhong＇s central part and the south.