Interannual variation in ecosystem respiration in an Inner Mongolian meadow steppe in response to livestock grazing

doi:10.1016/j.ecolind.2021.108121

	Interannual variation in ecosystem respiration in an Inner Mongolian meadow steppe in response to livestock grazing
	Yan, Ruirui ; Zhang, Yu ; Wang, Miao ; Li, Ruiqiang 2; Jin, Dongyan 3; Xin, Xiaoping ; Li, Linghao1
	2021
发表期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
卷号	131
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.
关键词	Grazing intensity Ecosystem respiration Canopy biomass Soil nutrient Soil moisture Temperate steppe
学科领域	Biodiversity Conservation ; Environmental Sciences
DOI	10.1016/j.ecolind.2021.108121
收录类别	SCI
语种	英语
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)
WOS记录号	WOS:000703715800002
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1872-7034
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
作者邮箱	xinxiaoping@caas.cn
作品OA属性	gold
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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 Agr Sci, Inst Agr Resources & Reg Planning, 12 Zhonguancun South St, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China 3.Environm Online Monitoring Ctr Inner Mongolia, 39 Tengfei Rd, Saihan Dist 010011, Hohhot, Peoples R China 4.Chinese Acad Agr Sci, Inst Agr Informat, 12 Zhonguancun South St, Beijing 100081, 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).

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Interannual_variatio（2679KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文