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Effects of grazing exclusion on carbon sequestration in China's grassland

文献类型：期刊论文

作者Deng, Lei1,2; Shangguan, Zhou-Ping2; Wu, Gao-Lin1,2; Chang, Xiao-Feng2; Wu, GL (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
刊名EARTH-SCIENCE REVIEWS
出版日期2017
卷号173页码:84-95
关键词Biomass Carbon Carbon Sequestration Dynamics Grassland Ecosystem Land Use Change Soil Carbon
ISSN号0012-8252
DOI10.1016/j.earscirev.2017.08.008
文献子类Article
英文摘要Globally, grazing exclusion (GE) is an effective management practice to restore degraded grasslands and improve carbon (C) stock. However, the C dynamics in grasslands ecosystem with GE have not been well characterized. The results of 145 sites published in 118 recent literatures were synthesized to examine the dynamics of plant and soil C sequestrations in grassland ecosystem after GE, and with the recovery age > 27 years under the China's 'Returning Grazing Land to Grassland' Project. Results showed a positive impact of GE on vegetation and soil C stock at most sites. The mean rate of aboveground biomass carbon stock (AGBC) change was 10.64 g m(-2) yr(-1), and the mean rate of belowground biomass (0-30 cm) carbon stock (BGBC) change was 32.14 g m(-2) yr(-1) after GE. The mean rate of soil C stock change was 0.27, 0.23, 0.18, 0.09 Mg ha(-1) yr(-1) in 0-10 cm, 10-20 cm, 20-30 cm, and 30-100 cm (equivalent to 10 cm), respectively. And Grass-dominated grasslands present a higher C sequestration ability than forb-dominated grasslands. Soil C stock rates and vegetation biomass C changes showed an Exponential Decay trend since GE, and the AGBC changes reached a steady state (when the rate at the equilibrium point) first, followed by BGBC, and then soil C. The AGBC and BGBC both had opposite views on soil C changes in the top 30 cm soil layers. Soil N is a key factor in the regulation of soil C sequestration since long term GE ( > 20 years). The large scale of GE under 'Returning Grazing Land to Grassland' Project significantly increased grassland C stocks. Meanwhile, increased soil N supply to grasslands with GE at the latter recovery stage may enhance ecosystem C sequestration capacity.
学科主题Geology
URL标识查看原文
出版地AMSTERDAM
语种英语
WOS记录号WOS:000413799600006
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China [41390463, 41501094, 41722107, 41525003]; Major Program of National Basic Research of China [2016YFC0501605]; National Key Technology R D Program [2015BAC01B03]; CAS [XAB2015B03, XAB2015A04] ; National Natural Science Foundation of China [41390463, 41501094, 41722107, 41525003]; Major Program of National Basic Research of China [2016YFC0501605]; National Key Technology R D Program [2015BAC01B03]; CAS [XAB2015B03, XAB2015A04] ; National Natural Science Foundation of China [41390463, 41501094, 41722107, 41525003]; Major Program of National Basic Research of China [2016YFC0501605]; National Key Technology R D Program [2015BAC01B03]; CAS [XAB2015B03, XAB2015A04] ; National Natural Science Foundation of China [41390463, 41501094, 41722107, 41525003]; Major Program of National Basic Research of China [2016YFC0501605]; National Key Technology R D Program [2015BAC01B03]; CAS [XAB2015B03, XAB2015A04]
源URL[http://ir.iswc.ac.cn/handle/361005/7905]  
专题水保所科研产出--SCI_2017--SCI
通讯作者Wu, GL (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Deng, Lei,Shangguan, Zhou-Ping,Wu, Gao-Lin,et al. Effects of grazing exclusion on carbon sequestration in China's grassland[J]. EARTH-SCIENCE REVIEWS,2017,173:84-95.
APA Deng, Lei,Shangguan, Zhou-Ping,Wu, Gao-Lin,Chang, Xiao-Feng,&Wu, GL .(2017).Effects of grazing exclusion on carbon sequestration in China's grassland.EARTH-SCIENCE REVIEWS,173,84-95.
MLA Deng, Lei,et al."Effects of grazing exclusion on carbon sequestration in China's grassland".EARTH-SCIENCE REVIEWS 173(2017):84-95.

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