| An Agricultural Land Resource Assessment Study Based on GIS—An Example from Guiyang City |
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| 引用本文： | 刘建军,李春来,万鹰昕. An Agricultural Land Resource Assessment Study Based on GIS—An Example from Guiyang City[J]. 中国地球化学学报, 2002, 21(1): 79-88. DOI: 10.1007/BF02838056 |
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| 作者姓名： | 刘建军 李春来 万鹰昕 |
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| 作者单位： | InsituteofGeochemistry,ChineseAcademyofSciences,Guiyang550002,China |
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| 摘 要： | This paper assesses the agricultural land resources of Guiyang City by means of GIS,on the basis of the pressure-state-response model in which soil heavy metal contamination is selected as a pressure indicatror.he results suggest that most of the agricultural land resources are of good quality,However,there are 17.11km^2 dry land and paddy field,which belong to the region of serious heavy metal contamination and are not fit for planting crops.At the same time,the high quality plowland,which is suitable for cultivation,has decreased nearly by 1/3 due to soil heavy metal contamination.These findings may improve our understanding that it is very important to prevent and cure heavy metal contamination of Guiyang City.
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| 关 键 词： | GIS 农业 土地资源 地理信息系统 土壤 贵阳市 重金属含量 |
| 收稿时间： | 2005-10-15 |
An agricultural land resource assessment study based on GIS—An example from Guiyang City |
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| Liu Jianjun,Li Chunlai,Wan Yingxin. An agricultural land resource assessment study based on GIS—An example from Guiyang City[J]. Chinese Journal of Geochemistry, 2002, 21(1): 79-88. DOI: 10.1007/BF02838056 |
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| Authors: | Liu Jianjun Li Chunlai Wan Yingxin |
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| Affiliation: | (1) Institute of Geochemistry, Chinese Academy of Sciences, 550002 Guiyang, China |
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| Abstract: | This paper assesses the agricultural land resources of Guiyang City by means of GIS, on the basis of the pressure-state-response model in which soil heavy metal contamination is selected as a pressure indicator. The results suggest that most of the agricultural land resources are of good quality. However, there are 17.11 km2 dry land and paddy field, which belong to the region of serious heavy metal contamination and are not fit for planting crops. At the same time, the high quality plowland, which is suitable for cultivation, has decreased nearly by 1/3 due to soil heavy metal contamination. These findings may improve our understanding that it is very important to prevent and cure heavy metal contamination of Guiyang City. Guiyang City includes five administrative districts, a city and three counties: Yunyan, Nanming, Huaxi, Wudang and Baiyun districts; Qingzhen City; Kaiyang, Xifeng and Xiuwen counties. In this paper, Guiyang City refers to the five districts: Yunyan, Nanming, Huaxi, Wudang and Baiyun districts. |
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| Keywords: | GIS agricultural land resources assessment soil heavy metal contamination |
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