Disentangling the formation and evolvement mechanism of plants-induced dried soil layers on China's Loess Plateau

doi:10.1016/j.agrformet.2019.02.011

IEECAS OpenIR > 生态环境研究室

	Disentangling the formation and evolvement mechanism of plants-induced dried soil layers on China's Loess Plateau
	Jia, Yuhua 1; Li, Tongchuan 2; Shao, Ming'an 3; Hao, Jianhui 1,7; Wang, Yunqiang 4; Jia, Xiaoxu 2; Zeng, Ceng 5; Fu, Xiaoli 2; Liu, Bingxia 6; Gan, Miao 1; Zhao, Mingyang 1; Ju, Xinni 1
通讯作者	Jia, Yuhua(jiayuhua@163.com) ; Shao, Ming'an(shaoma@igsnrr.ac.cn)
	2019-05-15
发表期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
卷号	269 页码:57-70
摘要	The extent of the effect of China's Loess Plateau on global climate change partially depends on the achievements of the Grain for Green Program (GFGP). This region is prone to drought problems, especially the widespread creation of dried soil layer (DSL), which is intensified by the revegetation from GFGP initiatives. A DSL is the result of soil desiccation in deep soil profiles. The occurrence and expansion of DSLs are strengthened by the high risk of the Loess Plateau to climate change. On the basis of the 14-year data of soil water content (SWC) of four revegetation types on a loessial slope, we investigated the evolution processes and recovery possibility of DSL. Results showed that both variation trends and abrupt changes in the SWC time series were distinctly affected by revegetation. The 40 cm thickness of the DSL was triggered when Medicago sativa and Caragana korshinskii grew for 2 and 4 years, respectively. The downward extension depth of DSL reached 580 cm under the two plants above within 7 and 8 years of planting. However, the results suggested the possibility of DSL disappearance as shown by the formation depth dynamics of DSL, the fluctuation of DSL-SWC, and the phenomenon of sandwiched DSL. During deep moisture recharge and DSL recovery, although the SWC sensitivity to textural variation was present in the vertical profile, the effects of soil texture on SWC were decreased. Wet climate was linked to both DSL thinning and thickening. Thus, the effect of wet climate is bidirectional for DSL development, thereby highlighting the important role of revegetation. The results of this work enhance our understanding of DSL and may help alleviate the risk of drought in the Loess Plateau.
关键词	Soil water resources Soil drought Revegetation Gain for green program Sandwiched dried soil layer
DOI	10.1016/j.agrformet.2019.02.011
关键词[WOS]	TEMPORAL STABILITY ; CLIMATE-CHANGE ; SPATIAL VARIABILITY ; WATER STORAGE ; VEGETATION ; MOISTURE ; DESICCATION ; RESPONSES ; DYNAMICS ; AFFORESTATION
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41390463] ; National Natural Science Foundation of China[41571221] ; National Natural Science Foundation of China[41571130081] ; National Natural Science Foundation of China[41601216] ; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-1504]
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
项目资助者	National Natural Science Foundation of China ; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000463120900006
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：56[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14163
专题	生态环境研究室
通讯作者	Jia, Yuhua; Shao, Ming'an
作者单位	1.Shenyang Agr Univ, Shenyang 110866, Liaoning, Peoples R China 2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 4.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 5.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China 6.Chinese Acad Sci, Hebei Lab Agr Water Saving, Key Lab Agr Water Resources, Ctr Agr Resources Res,Inst Genet & Dev Biol, Shijiazhuang 050021, Hebei, Peoples R China 7.Inner Mongolia Univ Nationalities, Tongliao 028000, Inner Mongolia, Peoples R China
推荐引用方式 GB/T 7714	Jia, Yuhua,Li, Tongchuan,Shao, Ming'an,et al. Disentangling the formation and evolvement mechanism of plants-induced dried soil layers on China's Loess Plateau[J]. AGRICULTURAL AND FOREST METEOROLOGY,2019,269:57-70.
APA	Jia, Yuhua.,Li, Tongchuan.,Shao, Ming'an.,Hao, Jianhui.,Wang, Yunqiang.,...&Ju, Xinni.(2019).Disentangling the formation and evolvement mechanism of plants-induced dried soil layers on China's Loess Plateau.AGRICULTURAL AND FOREST METEOROLOGY,269,57-70.
MLA	Jia, Yuhua,et al."Disentangling the formation and evolvement mechanism of plants-induced dried soil layers on China's Loess Plateau".AGRICULTURAL AND FOREST METEOROLOGY 269(2019):57-70.