Clipping defoliation eliminates the stimulating effects of nitrogen enrichment on the aboveground productivity of an alpine meadow
文献类型：期刊论文
| 作者 | Zong, Ning2; Shi, Peili1,2
|
| 刊名 | PLANT SOIL AND ENVIRONMENT
 |
| 出版日期 | 2020 |
| 卷号 | 66期号:1页码:47-56 |
| 关键词 | compensatory growth nutrient improvement plant functional group selective clipping Tibetan Plateau |
| ISSN号 | 1214-1178 |
| DOI | 10.17221/543/2019-PSE |
| 通讯作者 | Zong, Ning(zongning@igsnrr.ac.cn) |
| 英文摘要 | To investigate how clipping (CL) regulates the effects of nutrient addition, an experiment, including CL and nitrogen (N) addition, was conducted in an alpine meadow. Nitrogen treatment increased community coverage (48-113% higher than the control) and aboveground biomass (29-117% higher than the control), which was mainly attributed to grass growth. Both N and N + CL treatments showed a tendency to reducing species richness, while significant reduction only occurred in 2016 and 2017 in CL treatment. Clipping showed a tendency to decrease community cover (3-37% lower than the control) and aboveground biomass (2-34% lower than the control), while N + CL treatment had no effect, indicating that clipping can eliminate the simulated effects of N addition. Nitrogen addition significantly increased soil inorganic N (SIN, 528-1230% higher than the control), while SIN in N + CL was 25-48% lower than N treatment. The decrease in stimulated effects in N + CL was attributed to SIN decrease, which resulted from the aboveground biomass removal by clipping. Our results show that clipping can take away aboveground biomass and cause soil nutrients to decrease, which slows down the degraded grassland recovery. This suggests that grazing exclusion may eliminate the effect of nitrogen deposition on aboveground production in alpine grasslands. |
| WOS关键词 | TIBETAN PLATEAU ; SPECIES RICHNESS ; GRASSLAND ; RESPONSES ; BIOMASS ; AVAILABILITY ; BIODIVERSITY ; DIVERSITY ; COMMUNITY ; ECOSYSTEM |
| 资助项目 | National Science Foundation of China[31870406] ; National Science Foundation of China[41703079] ; National Key Research and Development Program[2016YFC0501803] ; National Key Research and Development Program[2017YFA0604802] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000510857300007 |
| 出版者 | CZECH ACADEMY AGRICULTURAL SCIENCES |
| 资助机构 | National Science Foundation of China ; National Key Research and Development Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/132426]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zong, Ning |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Lhasa Natl Ecol Res Stn, Key Lab Ecosyst Network Observat & Modelling, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zong, Ning,Shi, Peili. Clipping defoliation eliminates the stimulating effects of nitrogen enrichment on the aboveground productivity of an alpine meadow[J]. PLANT SOIL AND ENVIRONMENT,2020,66(1):47-56. |
| APA | Zong, Ning,&Shi, Peili.(2020).Clipping defoliation eliminates the stimulating effects of nitrogen enrichment on the aboveground productivity of an alpine meadow.PLANT SOIL AND ENVIRONMENT,66(1),47-56. |
| MLA | Zong, Ning,et al."Clipping defoliation eliminates the stimulating effects of nitrogen enrichment on the aboveground productivity of an alpine meadow".PLANT SOIL AND ENVIRONMENT 66.1(2020):47-56. |
入库方式： OAI收割
来源：地理科学与资源研究所
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。