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当前位置: 首页 > 文章 > 基于GIS的高山峡谷区耕地适宜性评价——以怒江州泸水县为例 西南农业学报 2014,27 (3) 1222-1227
Position: Home > Articles > Suitability Evaluation of Cultivated Lands in Alpine Valley Areas Based on GIS——A Case Study of Lushui County of Nujiang Prefecture Southwest China Journal of Agricultural Sciences 2014,27 (3) 1222-1227

基于GIS的高山峡谷区耕地适宜性评价——以怒江州泸水县为例

作  者：
王雪;李益敏;赵筱青
单  位：
云南大学资源环境与地球科学学院
关键词：
高山峡谷区;灰色关联度;耕地适宜性评价;泸水县
摘  要：
高山峡谷区由于山高坡陡、生态环境脆弱等特殊的自然环境特征,人地矛盾突出,可利用的耕地资源少,对该区域耕地进行适宜性评价有利于土地资源的合理利用和保护。以滇西北高山峡谷区怒江州泸水县为研究区,选取坡度、坡向、海拔、土壤侵蚀、土壤有机质为评价指标,通过灰色关联度法确定指标权重,运用GIS叠置分析等空间分析技术,以30 m×30 m栅格作为评价单元,对泸水县的耕地进行了适宜性评价,并将评价结果与2009年土地利用现状图进行叠加分析。结果表明,泸水县60%以上面积的土地不适宜耕地分布,高度适宜、中度适宜和临界适宜的面积比例分别为5.62%、15.16%、18.26%。有10.67%的现有耕地分布在不适宜区域内,89.33%的现有耕地分布在高度适宜、中度适宜和临界适宜区域内。
译  名：
Suitability Evaluation of Cultivated Lands in Alpine Valley Areas Based on GIS——A Case Study of Lushui County of Nujiang Prefecture
作  者：
WANG Xue;LI Yi-min;ZHAO Xiao-qing;School of Resource & Environment and Earth Science,Yunnan University;
关键词：
Alpine valley area;;Gray correlation degree;;Suitability evaluation of cultivated lands;;Lushui county
摘  要：
The steep mountainous area and fragile ecological environment result in the prominent contradiction between human and land,and the cultivated lands are few and limited. So to carry out the suitability evaluation of cultivated lands in this region is benefit for land resources rational use and protection. Taking alpine valley area Lushui county,Nujiang prefecture in northwest Yunnan as a case,selecting slope,aspect,altitude,soil erosion,soil organic as the evaluation index,and using gray correlation method to determine the index weight,the suitability of Lushui cultivated lands was evaluated by spatial analysis technical of GIS,with 30 m × 30 m grid as evaluation unit. Finally,the results overlay with 2009 land use map. It showed that more than 60 % of the land area in Lushui was not suitable for cultivated land distribution,and highly suitable,medium suitable and critical suitable accounted for 5. 62 %,15. 16 % and 15. 16 %,respectively. 10. 67 % of the existing cultivated lands distributed in inappropriate area,and 89. 33 % of the existing cultivated lands distributed in highly suitable,moderate suitable and critical suitable.

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