GSTDTAP  > 气候变化
DOI10.1088/1748-9326/aa849b
Quantitative assessment of carbon sequestration reduction induced by disturbances in temperate Eurasian steppe
Chen, Yizhao1,2,3,4; Ju, Weimin5; Groisman, Pavel6; Li, Jianlong2; Propastin, Pavel7,8; Xu, Xia1; Zhou, Wei9; Ruan, Honghua1
2017-11-01
发表期刊ENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
出版年2017
卷号12期号:11
文章类型Article
语种英语
国家Peoples R China; USA; Germany
英文摘要

The temperate Eurasian steppe (TES) is a region where various environmental, social, and economic stresses converge. Multiple types of disturbance exist widely across the landscape, and heavily influence carbon cycling in this region. However, a current quantitative assessment of the impact of disturbances on carbon sequestration is largely lacking. In this study, we combined the boreal ecosystem productivity simulator (BEPS), the Shiyomi grazing model, and the global fire model (Glob-FIRM) to investigate the impact of the two major types of disturbance in the TES (i.e. domestic grazing and fire) on regional carbon sequestration. Model performance was validated using satellite data and field observations. Model outputs indicate that disturbance has a significant impact on carbon sequestration at a regional scale. The annual total carbon lost due to disturbances was 7.8 TgCyr(-1), accounting for 14.2% of the total net ecosystem productivity (NEP). Domestic grazing plays the dominant role in terrestrial carbon consumption, accounting for 95% of the total carbon lost from the two disturbances. Carbon losses from both disturbances significantly increased from 1999 to 2008 (R-2 = 0.82, P < 0.001 for grazing, R-2 = 0.51, P < 0.05 for fire). Heavy domestic grazing in relatively barren grasslands substantially reduced carbon sequestration, particularly in the grasslands of Turkmenistan, Uzbekistan, and the far southwest of Inner Mongolia. This spatially-explicit information has potential implications for sustainable management of carbon sequestration in the vast grassland ecosystems.


英文关键词temperate Eurasian steppe carbon sequestration disturbance simulation terrestrial modelling grazing activity
领域气候变化
收录类别SCI-E
WOS记录号WOS:000414187200001
WOS关键词NET PRIMARY PRODUCTIVITY ; INNER-MONGOLIA ; CLIMATE-CHANGE ; SOIL PROPERTIES ; GRASSLAND ECOSYSTEMS ; XILINGOL STEPPE ; DRIVING FACTORS ; USE EFFICIENCY ; WATER SOURCES ; CENTRAL-ASIA
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/14863
专题气候变化
作者单位1.Nanjing Forestry Univ, Coll Biol & Environm, Joint Innovat Ctr Modern Forestry Studies, Nanjing, Jiangsu, Peoples R China;
2.Nanjing Univ, Sch Life Sci, Nanjing, Jiangsu, Peoples R China;
3.Tsinghua Univ, Minist Educ, Key Lab Earth Syst Modeling, Beijing 100084, Peoples R China;
4.Tsinghua Univ, Dept Earth Syst Sci, Beijing 100084, Peoples R China;
5.Nanjing Univ, Int Inst Earth Syst Sci, Nanjing, Jiangsu, Peoples R China;
6.Natl Ctr Environm Informat & Hydrol Sci & Serv Co, Asheville, NC USA;
7.Georg August Univ Gottingen, Inst Geog, Gottingen, Germany;
8.Georg August Univ Gottingen, Busgen Inst, Dept Bioclimatol, Gottingen, Germany;
9.Chongqing Jiaotong Univ, Coll Architecture & Urban Planning, Chongqing, Peoples R China
推荐引用方式
GB/T 7714
Chen, Yizhao,Ju, Weimin,Groisman, Pavel,et al. Quantitative assessment of carbon sequestration reduction induced by disturbances in temperate Eurasian steppe[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(11).
APA Chen, Yizhao.,Ju, Weimin.,Groisman, Pavel.,Li, Jianlong.,Propastin, Pavel.,...&Ruan, Honghua.(2017).Quantitative assessment of carbon sequestration reduction induced by disturbances in temperate Eurasian steppe.ENVIRONMENTAL RESEARCH LETTERS,12(11).
MLA Chen, Yizhao,et al."Quantitative assessment of carbon sequestration reduction induced by disturbances in temperate Eurasian steppe".ENVIRONMENTAL RESEARCH LETTERS 12.11(2017).
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