Effects of land use on water quality of two high-altitude lakes and catchments in Yunnan Province, China
文献类型：期刊论文
| 作者 | Wu, Gang ; Liu, Yang ; Shao, Guofan ; Tang, Lina ; Wang, Gary Z. |
| 刊名 | INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY
 |
| 出版日期 | 2008-12 |
| 卷号 | 15期号:6页码:534-542 |
| 关键词 | Water pollution land-use change lake degradation farming urbanisation water resources |
| 英文摘要 | Reclaiming farmland from lakes in China in the 1950s damaged the water quality of many lakes. Tremendous efforts have been made since the late 1990s to restore vegetation around the damaged lakes. This paper examines water quality of Fuxian and Qilu Lakes and land-use characteristics within the two catchments in the high-altitude area of Yunnan Province, China. Landsat TM data acquired in 1989, 1994, 1999 and 2005 were used to extract land use and land cover (LULC) information. Measurements of five water quality indices (WQIs), BOD, COD, pH, TN and TP, for the same period of time were examined. The results showed that the area of residential and forest/shrub increased, whereas that of cropland and barren land decreased from 1989 to 2005 in both catchments. Qilu Lake was much more polluted than Fuxian Lake, and pollution worsened over time for both lakes. The differences in water quality between the two lakes were caused by differences in LULC composition and continued degradation in water quality was caused by intensive farming and urban sprawl. Unless the landscape is converted back to its pre-1950 composition and structure, water quality in both lakes cannot be significantly improved and will continue to threaten sustainable development in the region. |
| WOS记录号 | WOS:000262841500005 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21834]  |
| 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 | Wu, Gang,Liu, Yang,Shao, Guofan,et al. Effects of land use on water quality of two high-altitude lakes and catchments in Yunnan Province, China[J]. INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY,2008,15(6):534-542. |
| APA | Wu, Gang,Liu, Yang,Shao, Guofan,Tang, Lina,&Wang, Gary Z..(2008).Effects of land use on water quality of two high-altitude lakes and catchments in Yunnan Province, China.INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY,15(6),534-542. |
| MLA | Wu, Gang,et al."Effects of land use on water quality of two high-altitude lakes and catchments in Yunnan Province, China".INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY 15.6(2008):534-542. |
入库方式： OAI收割
来源：生态环境研究中心
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