| 基于GIS的安徽省土壤有机碳密度的空间分布特征 |
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| 引用本文： | 程先富,谢勇.基于GIS的安徽省土壤有机碳密度的空间分布特征[J].地理科学,2009,29(4). |
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| 作者姓名： | 程先富 谢勇 |
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| 作者单位： | 安徽师范大学国土资源与旅游学院,安徽,芜湖,241003 |
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| 基金项目： | 安徽省自然科学基金，安徽省资源环境与地理信息工程中心和自然灾害过程与防控研究安徽省重点实验室建设基金 |
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| 摘 要： | 在GIS技术支持下,建立安徽省土壤数据库,揭示安徽省土壤有机碳密度空间分布特征.结果表明:安徽省0-100cm土体中土壤有机碳密度在0.92-40.97 kg/m2之间,均值为10.39 kg/m2;从空间分布上看,从北向南有机碳密度逐渐增加,有机碳密度大部分在3～19 kg/m2之间,其分布面积占总面积的89.72%;在各土壤类型中山地草甸土有机碳密度最大,而潮土、黄褐土、石质土有机碳密度较小;草地的有机碳密度最大,耕地最小;土壤有机碳密度与海拔高度之间存在高度相关,随着坡度、降雨量的增加,平均有机碳密度逐渐加大.
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| 关 键 词： | 有机碳密度 空间分布 安徽 |
Spatial Distribution of Soil Organic Carbon Density in Anhui Province Based on GIS |
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| CHENG Xian-fu,XIE Yong.Spatial Distribution of Soil Organic Carbon Density in Anhui Province Based on GIS[J].Scientia Geographica Sinica,2009,29(4). |
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| Authors: | CHENG Xian-fu XIE Yong |
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| Institution: | CHENG Xian-fu,XIE Yong (College of Territorial Resources , Tourism,Anhui Normal University,Wuhu,Anhui 241003) |
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| Abstract: | Based on GIS technique,soil database and spatial distribution patterns of soil organic carbon density of Anhui was established.The relationships between the soil organic carbon density and land use,soil type,terrain factors were investigated.The results showed that the range of soil organic carbon density is between 0.92 kg/m2 and 40.97 kg/m2 in 0-100 cm profile depth,average 10.39 kg/m2.The range of soil organic carbon density was mainly between 3 kg/m2 and 19 kg/m2,which accounts for 89.72% of the total a... |
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| Keywords: | GIS |
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