Dynamic response of water retention to grazing activity on grassland over the Three River Headwaters region
文献类型：期刊论文
| 作者 | Wang, Suizi1,2; Fan, Jiangwen2 ; Li, Yuzhe2; Wu, Dan3; Zhang, Yaxian1,2; Huang, Lin2
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| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 286页码:12 |
| ISSN号 | 0167-8809 |
| 关键词 | Ecosystem service Grasslandtype Grazing pressure Seasonal grazing utilization |
| DOI | 10.1016/j.agee.2019.106662 |
| 通讯作者 | Fan, Jiangwen(fanjw@igsnrr.ac.cn) |
| 英文摘要 | Known as the "Chinese water tower," the Three River Headwaters (TRH) region serves an important water retention function. In addition, grassland in this region is mainly used for grazing. However, grazing pressure potentially threatens the balance of this alpine grassland ecosystem. Thus, the influence of grazing activity on water retention needs to be explored. Based on remote sensing, meteorological, government statistics, hydrological records, and field observation data, we used the Integrated Valuation of Environmental Services and Tradeoffs model, grazing pressure index (GPI), and regression analysis to assess water yield (WY) variations and investigate the influence of grazing activity on water retention. The results showed that the grasslands were overloaded in the southern and eastern areas, whereas they had the capacity to carry more livestock in the western and central areas. Grazing pressure negatively impacts on WY in most of the TRH region. Source regions of the Yangtze, Yellow, and Lantsang Rivers also exhibited significant negative correlations between GPI and WY. Grazing decreased the soil water content in the alpine steppe, alpine meadow, and temperate steppe sites at soil depths of 0-30 cm, and a significant decrease was observed in the alpine meadow site at a depth of 10-20 cm. In all the areas, WY tended to decrease with GPI. Regression analyses indicate that GPI could better explain the total WY variation in the alpine meadow than in temperate steppe and alpine steppe. This implies that grazing activity has a negative effect on water retention, particularly in alpine meadows. |
| WOS关键词 | CLIMATE VARIABILITY ; ECOSYSTEM SERVICE ; INNER-MONGOLIA ; PLANT ; PRODUCTIVITY ; EVAPOTRANSPIRATION ; INTENSITY ; STEPPE ; CARBON ; COVER |
| 资助项目 | National Key R & D Program of China[2017YFC0506505] ; National Key R & D Program of China[2017YFA0604804] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA2009000002] |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000500215400016 |
| 资助机构 | National Key R & D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/130230]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Fan, Jiangwen |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Minist Ecol & Environm, Nanjing Inst Environm Sci, Nanjing 210042, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Suizi,Fan, Jiangwen,Li, Yuzhe,et al. Dynamic response of water retention to grazing activity on grassland over the Three River Headwaters region[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2019,286:12. |
| APA | Wang, Suizi,Fan, Jiangwen,Li, Yuzhe,Wu, Dan,Zhang, Yaxian,&Huang, Lin.(2019).Dynamic response of water retention to grazing activity on grassland over the Three River Headwaters region.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,286,12. |
| MLA | Wang, Suizi,et al."Dynamic response of water retention to grazing activity on grassland over the Three River Headwaters region".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 286(2019):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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