Wind erosion enhanced by land use changes significantly reduces ecosystem carbon storage and carbon sequestration potentials in semiarid grasslands

doi:10.1002/ldr.3118

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Wind erosion enhanced by land use changes significantly reduces ecosystem carbon storage and carbon sequestration potentials in semiarid grasslands
	Li, Ping 2; Liu, Lingli 2; Wang, Jing 2; Wang, Zhenhua 2; Wang, Xin ; Bai, Yongfei 2; Chen, Shiping
刊名	LAND DEGRADATION & DEVELOPMENT
	2018
卷号	29 期号:10 页码:3469-3478
关键词	abiotic and biotic carbon flux C sequestration potential land use changes semiarid grassland wind erosion
ISSN号	1085-3278
DOI	10.1002/ldr.3118
文献子类	Article
英文摘要	Wind erosion exerts a fundamental influence on the biotic and abiotic processes associated with ecosystem carbon (C) cycle. However, how wind erosion under different land use scenarios will affect ecosystem C balance and its capacity for future C sequestration is poorly quantified. Here, we simulated different intensities of land uses in Inner Mongolia: control, 50% of vegetation mowed (50M), 100% vegetation mowed (100M), and tillage (TI). We monitored abiotic C flux caused by wind erosion, net ecosystem exchange (NEE), and soil characteristics from 2013 to 2016. We found that the frequency of heavy wind exerts a fundamental control over the severity of soil erosion, and its interaction with precipitation and vegetation characteristics explained 69% of the variation in erosion intensity. With increases in land use intensity, the abiotic C flux induced by wind erosion increased rapidly, equivalent to 33%, 86%, 111%, and 183% of the NEE of natural steppe in the control, 50M, 100M, and TI sites, respectively. The erosion-induced decrease in fine fraction soils led to 31%, 43%, and 85% permanent losses of C sequestration potential in the surface soil for 50M, 100M, and TI sites. Overall, our study demonstrates that the abiotic C flux associated with wind erosion is too large to be ignored. The loss of C-enriched fine particles not only reduces the current ecosystem C content but also results in an irreversible loss of future soil C sequestration potential. These dynamic soil characteristics need to be considered when projecting future ecosystem C balance in aeolian landscapes.
学科主题	Environmental Sciences ; Soil Science
电子版国际标准刊号	1099-145X
出版地	HOBOKEN
WOS关键词	SOIL ORGANIC-CARBON ; DESERT GRASSLAND ; DUST EMISSION ; STABILIZATION ; CAPACITY ; DYNAMICS ; IMPACT ; COVER ; FLUX
语种	英语
出版者	WILEY
WOS记录号	WOS:000447651700020
资助机构	Chinese National Key Development Program for Basic Research of Ministry of Science and Technology of the People's Republic of China [2013CB956304, 2017YFC0503902] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31522011, 31670478]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/20558]
专题	植被与环境变化国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Li, Ping,Liu, Lingli,Wang, Jing,et al. Wind erosion enhanced by land use changes significantly reduces ecosystem carbon storage and carbon sequestration potentials in semiarid grasslands[J]. LAND DEGRADATION & DEVELOPMENT,2018,29(10):3469-3478.
APA	Li, Ping.,Liu, Lingli.,Wang, Jing.,Wang, Zhenhua.,Wang, Xin.,...&Chen, Shiping.(2018).Wind erosion enhanced by land use changes significantly reduces ecosystem carbon storage and carbon sequestration potentials in semiarid grasslands.LAND DEGRADATION & DEVELOPMENT,29(10),3469-3478.
MLA	Li, Ping,et al."Wind erosion enhanced by land use changes significantly reduces ecosystem carbon storage and carbon sequestration potentials in semiarid grasslands".LAND DEGRADATION & DEVELOPMENT 29.10(2018):3469-3478.