IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Cumulative and partially recoverable impacts of nitrogen addition on a temperate steppe
Hao, Tianxiang1,2; Song, Ling3; Goulding, Keith4; Zhang, Fusuo1,2; Liu, Xuejun1,2
2018
Source PublicationECOLOGICAL APPLICATIONS
ISSN1051-0761
Volume28Issue:1Pages:237-248
AbstractAtmospheric nitrogen (N) deposition has been shown to decrease biodiversity and change nutrient cycles in terrestrial ecosystems. However, our understanding of ecological responses to chronic N addition and ecological recovery of grassland from N enrichment is limited. Here we present evidence from an 11-year grassland experiment with a range of N addition rates (0, 30, 60, 120, 240, and 480 kg N.ha(-1).yr(-1)) in Inner Mongolia, China. Chronic N addition led to a reduction in species richness, Shannon diversity index, and soil pH and an increase in aboveground biomass, foliar N, and soil mineral N. High N addition rates (240 and 480 kg N.ha(-1).yr(-1)) showed significant effects in the first and second years, which stabilized over time. Nitrogen addition at low rates (30 and 60 kg N.ha(-1).yr(-1)) took longer (e.g., three years or more) to achieve significant effects. The negative impacts of high N addition (480 kg N.ha(-1).yr(-1)) were reduced and species richness, Shannon diversity index, and soil pH showed a limited but rapid recovery with the cessation of N addition. Our findings suggest serious and cumulative impacts of N addition on plant and soil communities but the potential for partial system recovery over time if N inputs decline or cease.
Keywordaboveground biomass ecosystem restoration grassland nitrogen deposition species composition species richness
DOI10.1002/eap.1647/full
WOS KeywordPLANT DIVERSITY ; SPECIES RICHNESS ; INNER-MONGOLIA ; INCREASED PRECIPITATION ; COMMUNITY STRUCTURE ; SEMIARID GRASSLAND ; SOIL ACIDIFICATION ; ALUMINUM TOXICITY ; N ADDITION ; DEPOSITION
Language英语
Funding ProjectState Key Basic Research Program[2017YFC0210100] ; State Key Basic Research Program[2014CB954202] ; National Natural Science Foundation of China[41425007] ; National Natural Science Foundation of China[31421092] ; Sino-UK Nitrogen Project (CINAg)
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEcology ; Environmental Sciences
WOS IDWOS:000429004700018
Funding OrganizationState Key Basic Research Program ; National Natural Science Foundation of China ; Sino-UK Nitrogen Project (CINAg)
PublisherWILEY
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20709
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorLiu, Xuejun
Affiliation1.China Agr Univ, Coll Resources & Environm Sci, Key Lab Plant Soil Interact MOE, Beijing 100193, Peoples R China
2.China Agr Univ, Beijing Key Lab Farmland Pollut Prevent & Remedia, Beijing 100193, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China
4.Rothamsted Res, Sustainable Agr Sci Dept, Harpenden AL5 2JQ, Herts, England
Recommended Citation
GB/T 7714
Hao, Tianxiang,Song, Ling,Goulding, Keith,et al. Cumulative and partially recoverable impacts of nitrogen addition on a temperate steppe[J]. ECOLOGICAL APPLICATIONS,2018,28(1):237-248.
APA Hao, Tianxiang,Song, Ling,Goulding, Keith,Zhang, Fusuo,&Liu, Xuejun.(2018).Cumulative and partially recoverable impacts of nitrogen addition on a temperate steppe.ECOLOGICAL APPLICATIONS,28(1),237-248.
MLA Hao, Tianxiang,et al."Cumulative and partially recoverable impacts of nitrogen addition on a temperate steppe".ECOLOGICAL APPLICATIONS 28.1(2018):237-248.
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