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| Asymmetric effects of grazing intensity on macroelements and microelements in grassland soil and plants in Inner Mongolia Grazing alters nutrient dynamics of grasslands | |
Hou, Dongjie1; Guo, Ke1 ; Liu, Changcheng
| |
| 2020 | |
| Source Publication | ECOLOGY AND EVOLUTION
 |
| ISSN | 2045-7758 |
| Volume | 10Issue:16Pages:8916-8926 |
| Abstract | Grazing is a traditional grassland management technique and greatly alters ecosystem nutrient cycling. The effects of grazing intensity on the nutrient dynamics of soil and plants in grassland ecosystems remain uncertain, especially among microelements. A 2-year field grazing experiment was conducted in a typical grassland with four grazing intensities (ungrazed control, light, moderate, and heavy grazing) in Inner Mongolia, China. Nutrient concentration was assessed in soil and three dominant plant species (Stipa krylovii,Leymus chinensis, andCleistogenes squarrosa). Assessed quantities included four macroelements (carbon (C), nitrogen (N), phosphorus (P), and magnesium (Mg)) and four microelements (copper (Cu), iron (Fe), manganese (Mn), and zinc (Zn)). Soil total C, total N, total P, available N, and available P concentrations significantly increased with grazing intensity but soil Mg, Cu, Fe, Mn, Zn concentrations had no significant response. Plant C concentration decreased but plant N, P, Mg, Cu, Fe, Mn, and Zn concentrations significantly increased with grazing intensity. In soil, macroelement dynamics (i.e., C, N, and P) exhibited higher sensitivity with grazing intensity, conversely in plants, microelements were more sensitive. This result indicates macroelements and microelements in soil and plants had asymmetric responses with grazing intensity. The slopes of nutrient linear regression inC. squarrosawere higher than that ofS. kryloviiandL. chinensis, indicating thatC. squarrosahad higher nutrient acquisition capacity and responded more rapidly to heavy grazing. These findings indicate that short-term heavy grazing accelerates nutrient cycling of the soil-plant system in grassland ecosystems, elucidate the multiple nutrient dynamics of soil and plants with grazing intensity, and emphasize the important function of microelements in plant adaptation in grazing management. |
| Keyword | ecological stoichiometry grazing intensity macroelement microelement typical grassland |
| Subject Area | Ecology ; Evolutionary Biology |
| DOI | 10.1002/ece3.6591 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | LEYMUS-CHINENSIS ; TYPICAL STEPPE ; MIXED-GRASS ; NITROGEN ; CARBON ; RESPONSES ; MANAGEMENT ; VEGETATION ; PHOSPHORUS ; IMPACT |
| WOS Research Area | Environmental Sciences & Ecology ; Evolutionary Biology |
| WOS ID | WOS:000549603100001 |
| Publisher | WILEY |
| Subtype | Article |
| Publication Place | HOBOKEN |
| Funding Organization | National Basic Research ProgramNational Basic Research Program of China [2014CB138802] |
| Corresponding Author Email | greatwall01@ibcas.ac.cn |
| OA | gold, Green Published |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ibcas.ac.cn/handle/2S10CLM1/21675 |
| Collection | 植被与环境变化国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Hou, Dongjie,Guo, Ke,Liu, Changcheng. Asymmetric effects of grazing intensity on macroelements and microelements in grassland soil and plants in Inner Mongolia Grazing alters nutrient dynamics of grasslands[J]. ECOLOGY AND EVOLUTION,2020,10(16):8916-8926. |
| APA | Hou, Dongjie,Guo, Ke,&Liu, Changcheng.(2020).Asymmetric effects of grazing intensity on macroelements and microelements in grassland soil and plants in Inner Mongolia Grazing alters nutrient dynamics of grasslands.ECOLOGY AND EVOLUTION,10(16),8916-8926. |
| MLA | Hou, Dongjie,et al."Asymmetric effects of grazing intensity on macroelements and microelements in grassland soil and plants in Inner Mongolia Grazing alters nutrient dynamics of grasslands".ECOLOGY AND EVOLUTION 10.16(2020):8916-8926. |
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| Hou-2020-Asymmetric （1380KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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