干旱区生态环境知识资源中心(Arid): Sediment addition and legume cultivation result in sustainable, long-term increases in ecosystem functions of sandy grasslands

Arid

DOI	10.1002/ldr.3348
	Sediment addition and legume cultivation result in sustainable, long-term increases in ecosystem functions of sandy grasslands
	Wu, Honghui 1; Lu, Linyou 2; Zhang, Yunlong 3; Xu, Chong 3,4; Yang, Hao 5; Zhou, Wei 1; Wang, Weiqi 6; Zhao, Liren 2; He, Nianpeng 5; Smith, Melinda D.7; Han, Xingguo 8; Hartley, Lain P.9; Yu, Qiang 3
通讯作者	He, Nianpeng ; Yu, Qiang
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2019
卷号	30 期号:14 页码:1667-1676
英文摘要	Desertification 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.
英文关键词	carbon sequestration grassland restoration land degradation soil structure water holding capacity
类型	Article
语种	英语
国家	Peoples R China ; USA ; England
收录类别	SCI-E
WOS记录号	WOS:000476267400001
WOS关键词	SOIL ORGANIC-CARBON ; NITROGEN STORAGE ; LAND-USE ; INNER-MONGOLIA ; MICROBIAL BIOMASS ; MANAGEMENT ; VEGETATION ; PLANT ; PRODUCTIVITY ; TILLAGE
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	兰州大学 ; 中国科学院地理科学与资源研究所 ; 中国科学院植物研究所 ; Colorado State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217476
作者单位	1.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
推荐引用方式 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]. 兰州大学, 中国科学院地理科学与资源研究所, 中国科学院植物研究所, Colorado State University,2019,30(14):1667-1676.
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,30(14),1667-1676.
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 30.14(2019):1667-1676.