Grazing affects snow accumulation and subsequent spring soil water by removing vegetation in a temperate grassland
文献类型：期刊论文
| 作者 | Yan, Yuchun2; Yan, Ruirui2; Wang, Xu2 ; Xu, Xingliang1; Xu, Dawei2; Jin, Dongyan3; Chen, Jinqiang2; Xin, Xiaoping2
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2019-12-20 |
| 卷号 | 697页码:8 |
| 关键词 | Grazing Vegetation properties Snow accumulation Soil water |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2019.134189 |
| 通讯作者 | Yan, Yuchun(yanyuchun@caas.cn) ; Yan, Ruirui(yanruirui@caas.cn) ; Xin, Xiaoping(xinxiaoping@caas.cn) |
| 英文摘要 | By altering plant and soil properties and microclimate environments, grazing has a profound influence on the structure and function of grassland ecosystems. However, few studies have addressed the potential grazing effects on snow accumulation and subsequent spring soil water after snow melting and soil thawing. In this study, vegetation properties, snow accumulation and soil water were measured in experimental plots subjected to 8 years of cattle grazing comprising six different grazing intensity treatments in a typical temperate grassland in eastern Eurasia. The results indicated that heavy grazing reduced the snow depth by 51% and the snow mass by 40%. Snow accumulation first rapidly increased but then remained relatively stable with increases in both the aboveground biomass and canopy height. An obvious inflection point occurred at approximately 200 g m(-2) aboveground biomass and at a 12.5 cm canopy height. The obvious difference in soil water content between the heavily grazed and ungrazed treatments occurred mainly in the spring after snow melting and soil thawing. The spring soil water content (0-30 cm) reached 31.5% in the ungrazed treatment (G0), which was 1.7 times that in the heavily grazed treatment (G0.92). The soil water content increased exponentially with increasing vegetation properties (aboveground biomass, canopy height and canopy cover), and a similar trend occurred with increasing snow mass and snow depth. Our structural equation modeling showed that both vegetation properties and snow accumulation had significant positive effects on spring soil water. By removing vegetation, grazing at increased intensities had significant, indirect suppressive effects on snow accumulation and spring soil water. Therefore, to obtain increased amounts of snowaccumulation and spring soil water, land managers should consider reducing the grazing intensity or leaving some plots ungrazed. (C) 2019 Elsevier B.V. All rights reserved. |
| WOS关键词 | ARCTIC TUNDRA ; MOISTURE ; PRECIPITATION ; RESPONSES ; IMPACTS ; BIOMASS ; STEPPE ; PLANTS ; DEPTH |
| 资助项目 | National Key Research and Development Program of China[2016YFC0500603] ; National Key Research and Development Program of China[2017YFE0104500] ; National Natural Science Foundation of China[41471093] ; National Natural Science Foundation of China[41671044] ; National Natural Science Foundation of China[41801096] ; Fundamental Research Funds for Central Nonprofit Scientific Institution[2060302-03-931-8] ; Special Funding for the Modern Agricultural Technology System of the Chinese Ministry of Agriculture |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000499668600040 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for Central Nonprofit Scientific Institution ; Special Funding for the Modern Agricultural Technology System of the Chinese Ministry of Agriculture |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/130282]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yan, Yuchun; Yan, Ruirui; Xin, Xiaoping |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China 3.Chinese Acad Agr Sci, Agr Informat Inst, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Yuchun,Yan, Ruirui,Wang, Xu,et al. Grazing affects snow accumulation and subsequent spring soil water by removing vegetation in a temperate grassland[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,697:8. |
| APA | Yan, Yuchun.,Yan, Ruirui.,Wang, Xu.,Xu, Xingliang.,Xu, Dawei.,...&Xin, Xiaoping.(2019).Grazing affects snow accumulation and subsequent spring soil water by removing vegetation in a temperate grassland.SCIENCE OF THE TOTAL ENVIRONMENT,697,8. |
| MLA | Yan, Yuchun,et al."Grazing affects snow accumulation and subsequent spring soil water by removing vegetation in a temperate grassland".SCIENCE OF THE TOTAL ENVIRONMENT 697(2019):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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