摘要
本文以ERDAS9.2为遥感平台对1992和2002年遥感数据进行分类处理,同时将土地利用变化结果与产能核算成果统一转入ARCGIS10.0平台,得出两期不同层次农用地生产能力变化,并结合土地人口承载力运算模型得出两期不同层次下承载力的变化。结果表明:①从数量和质量上看,研究期间农用地数量大量减少,生产能力降低。②从空间上看,农用地减少区域主要分布在武侯区、锦江区、高新区,占总面积的66.27%。③基于产能核算的3个层次的农用地承载力水平有不同程度的下降。
In this paper,the data collected by ERDAS9.2 in 1992 and 2002,was classified and sorted out,meanwhile the results of land use change and accounting productivity were transferred to ARCGIS10.0,with which the change of different levels agricultural land productivity was obtained,combining with land carrying capacity model,the agricultural land carrying capacity changes were obtained at different levels.The results showed that（ⅰ） viewing from quantity and quality,the agricultural land productivity decreased when the agricultural land reduced largely in research period,（ⅱ） the agricultural land region in Wuhou,Jinjiang and Gaoxin district of Chengdu,respectively,accounted for 66.27 %,（ⅲ）the different levels agricultural land carrying capacity that was acquired based on accounting productivity decreased at the different degree.
出处
《西南农业学报》
CSCD
北大核心
2011年第6期2296-2300,共5页
Southwest China Journal of Agricultural Sciences
基金
四川师范大学校级课题"基于GIS与RS成都市城市扩展对农用地承载能力影响研究"(10MSL09)
四川省教育厅重大培育项目"四川省农用地分等定级评价技术应用研究"(07ZZ031)
关键词
遥感
产能核算
农用地
承载力
RS
Accounting productivity
Agricultural land
Carrying capacity
