A model for integrated spatial land use characteristics linking to surface nutrient concentration
文献类型：期刊论文
| 作者 | Xu, Erqi; Zhang, Hongqi |
| 刊名 | INTERNATIONAL JOURNAL OF DIGITAL EARTH
 |
| 出版日期 | 2018 |
| 卷号 | 11期号:10页码:1064-1084 |
| 关键词 | Spatial distance spatial arrangement land use water eutrophication |
| ISSN号 | 1753-8947 |
| DOI | 10.1080/17538947.2017.1373868 |
| 通讯作者 | Zhang, Hongqi(zhanghq@igsnmac.cn) |
| 英文摘要 | Quantifying land use heterogeneity helps better understand how a influences biophysical systems. Land use area proportions have been used conventionally to predict water quality variables. Lacking an insight into the combined effect of various spatial characteristics could lead to the statistical bias and confused understanding in previous studies. In this study, using spatial techniques and mathematical models, a diagnostic model was developed and applied for quantifying and incorporating three spatial components, namely, slope, distance to sampling spots, and arrangement. The upper catchment of Miyun Reservoir was studied as the test area. Total nitrogen, total phosphorus, and chemical oxygen demand of water samples from field measurements were used to characterize the surface water quality in 52 sub-watersheds. Using parameter calibrations and determinations, combined spatial characteristics were explored and detected. Adjusted land use proportions were calculated by spatial weights of discriminating the relative contribution of each location to water quality and used to build the integrated models. Compared with traditional methods only using area proportions, our model increased the explanatory power of land use and quantified the effects of spatial information on water quality. This can guide the optimization of land use configuration to control water eutrophication. |
| WOS关键词 | NONPOINT-SOURCE POLLUTION ; STREAM WATER-QUALITY ; AGRICULTURAL CATCHMENTS ; FORESTED WATERSHEDS ; SCALE-DEPENDENCE ; RIPARIAN BUFFERS ; USE INTENSITY ; LANDSCAPE ; RIVER ; COVER |
| 资助项目 | National Basic Research Program of China (973 Program)[2015CB452702] ; National Natural Science Foundation of China[41371116] |
| WOS研究方向 | Physical Geography ; Remote Sensing |
| 语种 | 英语 |
| WOS记录号 | WOS:000442755000006 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/54340]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Hongqi |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Erqi,Zhang, Hongqi. A model for integrated spatial land use characteristics linking to surface nutrient concentration[J]. INTERNATIONAL JOURNAL OF DIGITAL EARTH,2018,11(10):1064-1084. |
| APA | Xu, Erqi,&Zhang, Hongqi.(2018).A model for integrated spatial land use characteristics linking to surface nutrient concentration.INTERNATIONAL JOURNAL OF DIGITAL EARTH,11(10),1064-1084. |
| MLA | Xu, Erqi,et al."A model for integrated spatial land use characteristics linking to surface nutrient concentration".INTERNATIONAL JOURNAL OF DIGITAL EARTH 11.10(2018):1064-1084. |
入库方式： OAI收割
来源：地理科学与资源研究所
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