Effect of Land-Use Patterns on Total Nitrogen Concentration in the Upstream Regions of the Haihe River Basin, China
文献类型：期刊论文
| 作者 | Sun, Ranhao ; Chen, Liding ; Chen, Wenlin ; Ji, Yuhe |
| 刊名 | ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2013 |
| 卷号 | 51期号:1页码:45-58 |
| 通讯作者 | Chen, LD |
| 中文摘要 | Nutrient loading into rivers is generally increased by human-induced land-use changes and can lead to increased surface water pollution. Understanding the extent to which land-use patterns influence nutrient loading is critical to the development of best-management practices aimed at water-quality improvement. In this study, we investigated total nitrogen (total N) concentration as a function of land-use patterns and compared the relative significance of the identified land-use variables for 26 upstream watersheds of the Haihe River basin. Seven land-use intensity and nine landscape complexity variables were selected to form the land-use pattern metrics on the landscape scale. After analyzing the significance of the land-use pattern metrics, we obtained five dominant principal components: human-induced land-use intensity, landscape patch-area complexity, area-weighted landscape patch-shape complexity, forest and grassland area, and landscape patch-shape complexity. A linear regression model with a stepwise selection protocol was used to identify an optimal set of land-use pattern predictors. The resulting contributions to the total N concentration were 50% (human-induced land-use intensity), 23.13% (landscape patch-shape complexity), 14.38% (forest and grassland area), and 12.50% (landscape patch-area complexity), respectively. The regression model using land-use measurements can explain 87% of total N variability in the upstream regions of Haihe River. The results indicated that human-related land-use factors, such as residential areas, population, and road density, had the most significant effect on N concentration. The agricultural area (30.1% of the study region) was not found to be significantly correlated with total N concentration due to little irrigative farmland and rainfall. Results of the study could help us understand the implications of potential land-use changes that often occur as a result of the rapid development in China. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000314310800004 |
| 公开日期 | 2014-06-04 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7336]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Sun, Ranhao,Chen, Liding,Chen, Wenlin,et al. Effect of Land-Use Patterns on Total Nitrogen Concentration in the Upstream Regions of the Haihe River Basin, China[J]. ENVIRONMENTAL MANAGEMENT,2013,51(1):45-58. |
| APA | Sun, Ranhao,Chen, Liding,Chen, Wenlin,&Ji, Yuhe.(2013).Effect of Land-Use Patterns on Total Nitrogen Concentration in the Upstream Regions of the Haihe River Basin, China.ENVIRONMENTAL MANAGEMENT,51(1),45-58. |
| MLA | Sun, Ranhao,et al."Effect of Land-Use Patterns on Total Nitrogen Concentration in the Upstream Regions of the Haihe River Basin, China".ENVIRONMENTAL MANAGEMENT 51.1(2013):45-58. |
入库方式： OAI收割
来源：生态环境研究中心
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