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Sediment addition and legume cultivation result in sustainable, long-term increases in ecosystem functions of sandy grasslands
Wu, Honghui1; Lu, Linyou2; Zhang, Yunlong3; Xu, Chong3,4; Yang, Hao5; Zhou, Wei1; Wang, Weiqi6; Zhao, Liren2; He, Nianpeng5; Smith, Melinda D.7; Han, Xingguo8; Hartley, Lain P.9; Yu, Qiang3
2019-07-15
Source PublicationLAND DEGRADATION & DEVELOPMENT
ISSN1085-3278
Pages10
Corresponding AuthorHe, Nianpeng(henp@igsnrr.ac.cn) ; Yu, Qiang(yuqiang@caas.cn)
AbstractDesertification of sandy grasslands is an increasing problem, with serious negative impacts on ecosystem functions. Sandy grasslands are fragile with low ecosystem productivity mainly because of the sandy soil structure with low water and nutrient holding capacities and especially low levels of nitrogen. Here, we evaluate the long-term impacts of sediment addition from a local reservoir, and grass and legume cultivation (artificial grasslands) on a sandy grassland in eastern Inner Mongolia, China. The results showed that even after 32 years, sediment addition had improved soil structure significantly, that is, increasing of silt and clay contents, soil bulk density, and water holding capacity. As the result of improved soil structure, ecosystem functions, including aboveground net primary productivity (ANPP) and soil carbon, nitrogen (N), and phosphorus storage, increased significantly. Net C, N, and P sequestration increased even after accounting for the sediment addition, due, at least partially, to the greater plant biomass trapping large quantities of wind-blown dust. Plant cultivation, especially the addition of a legume, further increased ANPP significantly, that is, the cultivation of Leymus chinensis and the legume Medicago sativa increased ANPP 6.99 and 44.62 times, respectively. Our study highlights that improvements in soil structure and cultivation with legume species can increased substantially the productivity of sandy grasslands and that the initial increases in grass biomass promoted the sequestration of wind-blown dust, which helped sustain the increases in productivity.
Keywordcarbon sequestration grassland restoration land degradation soil structure water holding capacity
DOI10.1002/ldr.3348
WOS KeywordSOIL ORGANIC-CARBON ; NITROGEN STORAGE ; LAND-USE ; INNER-MONGOLIA ; MICROBIAL BIOMASS ; MANAGEMENT ; VEGETATION ; PLANT ; PRODUCTIVITY ; TILLAGE
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFE0104500] ; National Key R&D Program of China[2017YFA0604802] ; National Natural Science Foundation of China[41320104002] ; National Natural Science Foundation of China[41203052]
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Agriculture
WOS SubjectEnvironmental Sciences ; Soil Science
WOS IDWOS:000476267400001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/58307
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHe, Nianpeng; Yu, Qiang
Affiliation1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr Key Lab Crop Nutr & Fertilizat, Beijing 100081, Peoples R China
2.Liaoning Inst Sandy Land Improvement & Utilizat, Fuxing 123000, Peoples R China
3.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Hulunber Grassland Ecosyst Observat & Res St, Beijing 100081, Peoples R China
4.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730020, Gansu, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
6.Fujian Normal Univ, Inst Geog, Fuzhou 350007, Fujian, Peoples R China
7.Colorado State Univ, Dept Biol, Grad Degree Program Ecol, Ft Collins, CO 80523 USA
8.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
9.Univ Exeter, Coll Life & Environm Sci, Dept Geog, Exeter EX4 4RJ, Devon, England
Recommended Citation
GB/T 7714
Wu, Honghui,Lu, Linyou,Zhang, Yunlong,et al. Sediment addition and legume cultivation result in sustainable, long-term increases in ecosystem functions of sandy grasslands[J]. LAND DEGRADATION & DEVELOPMENT,2019:10.
APA Wu, Honghui.,Lu, Linyou.,Zhang, Yunlong.,Xu, Chong.,Yang, Hao.,...&Yu, Qiang.(2019).Sediment addition and legume cultivation result in sustainable, long-term increases in ecosystem functions of sandy grasslands.LAND DEGRADATION & DEVELOPMENT,10.
MLA Wu, Honghui,et al."Sediment addition and legume cultivation result in sustainable, long-term increases in ecosystem functions of sandy grasslands".LAND DEGRADATION & DEVELOPMENT (2019):10.
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