Effects of land use on water chemistry in a river draining karst terrain, southwest China
文献类型：期刊论文
| ; | |
| 作者 | Guilin Han; Fushan Li; Qiu Tan |
| 刊名 | Hydrological Sciences Journal5
 ; Hydrological Sciences Journal5
|
| 出版日期 | 2014 ; 2014 |
| 卷号 | 59期号:5页码:1063-1073 |
| 关键词 | Land Use Land Use River Water Water Chemistry Wujiang River Basin, China China River Water Water Chemistry Wujiang River Basin, China China |
| 英文摘要 | The effects of land use on river water chemistry in a typical karst watershed (Wujiang River) of southwest China have been evaluated. Dissolved major ions and Sr isotopic compositions were determined in 11 independent sub-watersheds of the Wujiang River to investigate the spatio-temporal variations in river water chemistry and their relationship to land use. The results show significant spatial variability in pH, major ions, total dissolved solids (TDS), and Sr isotopic compositions throughout the basin. Correlation analysis indicates that nitrogen content is significantly related to forest coverage. Nitrogen and potassium generally have higher values in the rainy season, and the percentage of agricultural land controlled NO3 - levels, which originate from anthropogenic sources. Forest cover, which varies between 35% and 71%, has no statistically significant impact on river solute concentrations, but the TDS flux is low in sub-watersheds with greater forest cover. Geological sources have a significant influence on pH and Sr isotopic compositions in river water throughout the basin. ;The effects of land use on river water chemistry in a typical karst watershed (Wujiang River) of southwest China have been evaluated. Dissolved major ions and Sr isotopic compositions were determined in 11 independent sub-watersheds of the Wujiang River to investigate the spatio-temporal variations in river water chemistry and their relationship to land use. The results show significant spatial variability in pH, major ions, total dissolved solids (TDS), and Sr isotopic compositions throughout the basin. Correlation analysis indicates that nitrogen content is significantly related to forest coverage. Nitrogen and potassium generally have higher values in the rainy season, and the percentage of agricultural land controlled NO3 - levels, which originate from anthropogenic sources. Forest cover, which varies between 35% and 71%, has no statistically significant impact on river solute concentrations, but the TDS flux is low in sub-watersheds with greater forest cover. Geological sources have a significant influence on pH and Sr isotopic compositions in river water throughout the basin. |
| 语种 | 英语 ; 英语 |
| 源URL | [http://ir.gyig.ac.cn/handle/42920512-1/11198]  |
| 专题 | 地球化学研究所_环境地球化学国家重点实验室 |
| 作者单位 | 1.School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China 2.Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 3.University of Chinese Academy of Sciences, Beijing 100049, China 4.School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China |
| 推荐引用方式 GB/T 7714 | Guilin Han,Fushan Li,Qiu Tan. Effects of land use on water chemistry in a river draining karst terrain, southwest China, Effects of land use on water chemistry in a river draining karst terrain, southwest China[J]. Hydrological Sciences Journal5, Hydrological Sciences Journal5,2014, 2014,59, 59(5):1063-1073, 1063-1073. |
| APA | Guilin Han,Fushan Li,&Qiu Tan.(2014).Effects of land use on water chemistry in a river draining karst terrain, southwest China.Hydrological Sciences Journal5,59(5),1063-1073. |
| MLA | Guilin Han,et al."Effects of land use on water chemistry in a river draining karst terrain, southwest China".Hydrological Sciences Journal5 59.5(2014):1063-1073. |
入库方式： OAI收割
来源：地球化学研究所
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。