| Grazing exclusion significantly improves grassland ecosystem C and N pools in a desert steppe of Northwest China | |
| Wang, Kaibo1; Deng, Lei2; Ren, Zongping3; Li, Jianping4; Shangguan, Zhouping2 | |
| 2016-02-01 | |
| 发表期刊 | CATENA
 |
| 卷号 | 137期号:2016页码:441-448 |
| 文章类型 | Article |
| 摘要 | Grazing exclusion is often implemented as an effective management practice to increase the sustainability of grassland ecosystems. However, it remains unclear if grazing exclusion can improve ecosystem services related to carbon (C) and nitrogen (N) sequestration in grassland ecosystems. We investigated the effects of 11 years of grazing exclusion on plant biomass and diversity, soil properties (pH, soil water content (SWC), bulk density (BD), soil organic carbon (SOC), total nitrogen (TN),.and C/N ratio), and the C and N stocks of plants and soils in a desert grassland of Northwest China. Grazing exclusion improved plant aboveground biomass and diversity, as well as SWC, SOC, and TN contents, but lowered the belowground biomass, root/shoot ratio, pH, and BD. Moreover, grazing exclusion strongly influenced the C and N stocks of the ecosystem, and the annual mearbecosystem C and N sequestration rates were 0.47 and 0.09 Mg ha(-1) yr(-1), respectively, over 11 years of grazing exclusion. Soil C stocks were most dynamic in the top 30 cm of the soil, and N stocks mainly changed in the top 20 cm after grazing exclusion. Our results indicated that grazing exclusion is an effective measurement on improving the ecosystem C and N pools in desert steppe of Northwest China. (C) 2015 Elsevier B.V. All rights reserved. |
| 关键词 | Fencing Grazing Vegetation Characteristics Soil Prosperities Carbon Sequestration Nitrogen Sequestration |
| WOS标题词 | Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine |
| DOI | 10.1016/j.catena.2015.10.018 |
| 关键词[WOS] | LOESS PLATEAU CHINA ; SOIL ORGANIC C ; INNER-MONGOLIA ; MICROBIAL-COMMUNITY ; SPATIAL VARIABILITY ; PHYSICAL-PROPERTIES ; PLANT-COMMUNITIES ; CENTRAL ARGENTINA ; CARBON STORAGE ; PRODUCTIVITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| WOS类目 | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| WOS记录号 | WOS:000367635800043 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5852 |
| 专题 | 生态环境研究室 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Shaanxi, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Xian Univ Technol, State Key Lab Base Ecohydraul Engn, Arid Area, Xian 710048, Shaanxi, Peoples R China 4.Ningxia Univ, Sch Agr, Ningxia 750021, Yinchuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Kaibo,Deng, Lei,Ren, Zongping,et al. Grazing exclusion significantly improves grassland ecosystem C and N pools in a desert steppe of Northwest China[J]. CATENA,2016,137(2016):441-448. |
| APA | Wang, Kaibo,Deng, Lei,Ren, Zongping,Li, Jianping,&Shangguan, Zhouping.(2016).Grazing exclusion significantly improves grassland ecosystem C and N pools in a desert steppe of Northwest China.CATENA,137(2016),441-448. |
| MLA | Wang, Kaibo,et al."Grazing exclusion significantly improves grassland ecosystem C and N pools in a desert steppe of Northwest China".CATENA 137.2016(2016):441-448. |
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| Grazing exclusion si（1047KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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