Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China
文献类型：期刊论文
| 作者 | Lu, X.1 ; Yan, Y.1; Sun, J.2; Zhang, X.3; Chen, Y.1; Wang, X.1; Cheng, G.1
|
| 刊名 | SOLID EARTH
 |
| 出版日期 | 2015 |
| 卷号 | 6期号:4页码:1195-1205 |
| 关键词 | soil properties |
| ISSN号 | 1869-9510 |
| 通讯作者 | Yan, Y. |
| 英文摘要 | Since the 1980s, alpine grasslands have been seriously degraded on the Tibetan Plateau. Grazing exclusion by fencing has been widely adopted to restore degraded grasslands. To clarify the effect of grazing exclusion on soil quality, we investigated soil properties and nutrients by comparing free-grazing (FG) and grazing exclusion (GE) grasslands in Tibet. Soil properties - including soil bulk density, pH, particle size distributions, and proportion of aggregates showed no significant difference between FG and GE plots. Soil organic carbon, soil available nitrogen, and available phosphorus contents did not differ with grazing exclusion treatments in both the 0-15 and 15-30 cm layer. However, soil total nitrogen and total phosphorus contents were remarkably reduced due to grazing exclusion at 0-15 cm depth. Furthermore, growing season temperature and/or growing season precipitation had significant effects on almost all soil property and nutrient indicators. This study demonstrates that grazing exclusion had no impact on most soil properties and nutrients in Tibet. Additionally, the potential shift of climate conditions should be considered when recommending any policy designed for restoration of degraded soil in alpine grasslands in the future. Nevertheless, because the results of the present study come from a short-term (6-8 years) grazing exclusion, the assessments of the ecological effects of the grazing exclusion management strategy on soil quality of degraded alpine grasslands in Tibet still need long-term continued research. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geochemistry & Geophysics |
| 研究领域[WOS] | Geochemistry & Geophysics |
| 关键词[WOS] | ORGANIC-MATTER ; INNER-MONGOLIA ; NORTHERN CHINA ; CARBON STOCKS ; NITROGEN MINERALIZATION ; LIVESTOCK EXCLUSION ; TEMPERATE STEPPE ; C STOCKS ; PLATEAU ; STORAGE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000374540800007 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/17387]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 3.Hohai Univ, Sch Publ Adm, Nanjing 210098, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, X.,Yan, Y.,Sun, J.,et al. Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China[J]. SOLID EARTH,2015,6(4):1195-1205. |
| APA | Lu, X..,Yan, Y..,Sun, J..,Zhang, X..,Chen, Y..,...&Cheng, G..(2015).Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China.SOLID EARTH,6(4),1195-1205. |
| MLA | Lu, X.,et al."Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China".SOLID EARTH 6.4(2015):1195-1205. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
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。