Cropland abandonment enhances soil inorganic nitrogen retention and carbon stock in China: A meta-analysis

doi:10.1002/ldr.3137

	Cropland abandonment enhances soil inorganic nitrogen retention and carbon stock in China: A meta-analysis
	Tian, Dashuan 1; Xiang, Yangzhou 2; Wang, Bingxue 1; Li, Meiling 1; Liu, Yanshu 3; Wang, Jinsong 1; Li, Zhaolei 1; Niu, Shuli 1,4
刊名	LAND DEGRADATION & DEVELOPMENT
	2018-11-01
卷号	29 期号:11 页码:3898-3906
关键词	carbon sequestration ecosystem recovery land use change soil nitrogen availability the 'Grain for Green' Programme
ISSN号	1085-3278
DOI	10.1002/ldr.3137
通讯作者	Tian, Dashuan(tiands@igsnrr.ac.cn) ; Niu, Shuli()
英文摘要	Transforming cropland into a semi-natural ecosystem is an effective approach to increase soil organic carbon (SOC) and nitrogen sequestration. However, we know little about large-scale response patterns of SOC, soil inorganic nitrogen (SIN), and their interactions over long time of ecosystem restoration. Here, we conducted a meta-analysis to examine changes in SOC, SIN, and their relationship along 50 year's ecosystem development from cropland transformation in China's 'Grain for Green' Programme. Our results showed that SOC and SIN were consistently enhanced by 57% and 35% with transformation, respectively. Similar with SOC, SIN had higher response magnitudes when cropland was restored to forests (47%) than to shrublands (36%) and grasslands (24%). Both SOC and SIN response ratios showed a quadratic relationship with precipitation. Moreover, we found a strong linear relationship (R-2 = 0.36) between SOC and SIN response ratio, with the slope indicating a 0.43% increase in SIN per 1% of increasing SOC. This SIN retention capacity (the slope) significantly increased with restoration time but reduced with precipitation, temperature, and initial SOC. Restored forest had a lower SIN retention capacity than had shrubland and grassland. Overall, this study represents the first to regionally uncover SIN retention mechanism with increasing SOC during ecosystem development. It suggests that ecosystem restoration will contribute more to relieving serious environmental problems (i.e., N leaching and N2O emission) by enhancing SIN retention in China's Grain for Green Programme.
资助项目	Thousand Youth Talents Plan ; Forestry Science and Research Program of Guizhou Province[GZFSTC[2015]] ; Forestry Science and Research Program of Guizhou Province[6] ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences[KFJ-SWSTS-169] ; Ministry of Science and Technology of the People's Republic of China[2016YFC0501803] ; National Natural Science Foundation of China[31625006]
WOS关键词	LAND-USE CHANGE ; FOR-GREEN PROGRAM ; TERRESTRIAL ECOSYSTEMS ; ORGANIC-CARBON ; LITTER DECOMPOSITION ; GLOBAL METAANALYSIS ; STAND DEVELOPMENT ; P STOICHIOMETRY ; SEQUESTRATION ; CLIMATE
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
语种	英语
出版者	WILEY
WOS记录号	WOS:000449541200006
资助机构	Thousand Youth Talents Plan ; Forestry Science and Research Program of Guizhou Province ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/52472]
专题	中国科学院地理科学与资源研究所
通讯作者	Tian, Dashuan; Niu, Shuli
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Guizhou Inst Forest Inventory & Planning, Guiyang 550003, Guizhou, Peoples R China 3.Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Tian, Dashuan,Xiang, Yangzhou,Wang, Bingxue,et al. Cropland abandonment enhances soil inorganic nitrogen retention and carbon stock in China: A meta-analysis[J]. LAND DEGRADATION & DEVELOPMENT,2018,29(11):3898-3906.
APA	Tian, Dashuan.,Xiang, Yangzhou.,Wang, Bingxue.,Li, Meiling.,Liu, Yanshu.,...&Niu, Shuli.(2018).Cropland abandonment enhances soil inorganic nitrogen retention and carbon stock in China: A meta-analysis.LAND DEGRADATION & DEVELOPMENT,29(11),3898-3906.
MLA	Tian, Dashuan,et al."Cropland abandonment enhances soil inorganic nitrogen retention and carbon stock in China: A meta-analysis".LAND DEGRADATION & DEVELOPMENT 29.11(2018):3898-3906.