Interannual variation in ecosystem respiration in an Inner Mongolian meadow steppe in response to livestock grazing
文献类型：期刊论文
| 作者 | Yan, Ruirui; Zhang, Yu; Wang, Miao; Li, Ruiqiang1; Jin, Dongyan4; Xin, Xiaoping; Li, Linghao2
|
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2021 |
| 卷号 | 131 |
| 关键词 | Grazing intensity Ecosystem respiration Canopy biomass Soil nutrient Soil moisture Temperate steppe |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2021.108121 |
| 文献子类 | Article |
| 英文摘要 | Understanding the effects of livestock grazing on ecosystem respiration (Re) of grassland ecosystems is critical for accurately assessing the feedback of grazing management to climate change. We examined ecosystem respiration in response to varying cattle grazing intensities during growing seasons from 2009 to 2018 in a meadow steppe ecosystem of eastern Inner Mongolia. We found that ungrazed swards had the highest mean annual Re rate, with seasonal CVs in Re ranging from 37.53% to 46.04% for all treatments. When all treatments were analysed as a whole, we identified a significant positive relationship between the annual Re rate and annual peak value of standing plant aboveground biomass. Our findings showed that controlling factors on the mean annual Re differed substantially with grazing intensity. In ungrazed and lightly-grazed plots (G0.00 and G0.23), the mean annual Re rate was controlled mainly by canopy height and/or rainfall, while it was controlled more predominantly by contents of NH4+-N and available phosphorus in moderately and heavily grazed plots. We detected significant positive relationships of the annual Re rate with rainfall, soil moisture, ammonium nitrogen, and soil available phosphorus during the entire study period, whereas significant negative relationships were detected between the annual ecosystem respiration rate and the mean growing season temperature, irrespective of grazing intensity. Our findings revealed that grazing could substantially simplify the relationship between the mean annual Re rate and biotic and abiotic parameters. It may be concluded that the relationship between the annual Re rate and the standing crop aboveground biomass was a principal mechanism underlying the effects of gradient grazing on the Re of Chinese meadow steppe ecosystems. |
| 学科主题 | Biodiversity Conservation ; Environmental Sciences |
| 出版地 | AMSTERDAM |
| 电子版国际标准刊号 | 1872-7034 |
| WOS关键词 | CARBON-DIOXIDE EXCHANGE ; GREENHOUSE-GAS FLUXES ; SOIL CO2 EFFLUX ; ALPINE MEADOW ; GRASSLAND ; TEMPERATURE ; PRODUCTIVITY ; VARIABILITY ; EMISSIONS ; DYNAMICS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000703715800002 |
| 出版者 | ELSEVIER |
| 资助机构 | Natural Science Foundation of China [31971769, 41771205, 41801096] ; National Key Research and Development Program of China [2016YFC0500601, 2017YFE0104500] ; Fundamental Research Funds for Central Non-profit Scientific Institution [Y2020YJ19, 1610132021016] ; Hulunbuir Science and Technology Project [YYYFHZ201903] ; Construction of Agricultural Science and Technology Innovation Alliance - Basic Long-term Science and Technology Work inAgriculture [NAES037SQ18] ; Special Funding for Modern Agricultural Technology Systems from the Chinese Ministry of Agriculture |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26712]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, 12 Zhonguancun South St, Beijing 100081, Peoples R China 3.Chinese Acad Agr Sci, Inst Agr Informat, 12 Zhonguancun South St, Beijing 100081, Peoples R China 4.Environm Online Monitoring Ctr Inner Mongolia, 39 Tengfei Rd, Saihan Dist 010011, Hohhot, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Ruirui,Zhang, Yu,Wang, Miao,et al. Interannual variation in ecosystem respiration in an Inner Mongolian meadow steppe in response to livestock grazing[J]. ECOLOGICAL INDICATORS,2021,131. |
| APA | Yan, Ruirui.,Zhang, Yu.,Wang, Miao.,Li, Ruiqiang.,Jin, Dongyan.,...&Li, Linghao.(2021).Interannual variation in ecosystem respiration in an Inner Mongolian meadow steppe in response to livestock grazing.ECOLOGICAL INDICATORS,131. |
| MLA | Yan, Ruirui,et al."Interannual variation in ecosystem respiration in an Inner Mongolian meadow steppe in response to livestock grazing".ECOLOGICAL INDICATORS 131(2021). |
入库方式： OAI收割
来源：植物研究所
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