Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14074 |
Long-term terrestrial carbon dynamics in the Midwestern United States during 1850-2015: Roles of land use and cover change and agricultural management | |
Yu, Zhen1; Lu, Chaoqun1; Cao, Peiyu1; Tian, Hanqin2,3 | |
2018-06-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
![]() |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:6页码:2673-2690 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | To meet the increasing food and biofuel demand, the Midwestern United States has become one of the most intensively human-disturbed hotspots, characterized by widespread cropland expansion and various management practices. However, the role of human activities in the carbon (C) cycling across managed landscape remains far from certain. In this study, based on state- and national census, field experiments, and model simulation, we comprehensively examined long-term carbon storage change in response to land use and cover change (LUCC) and agricultural management in the Midwest from 1850 to 2015. We also quantified estimation uncertainties related to key parameter values. Model estimation showed LUCC led to a reduction of 1.35 Pg (with a range of 1.3-1.4 Pg) in vegetation C pool of the Midwest, yet agricultural management barely affected vegetation C change. In comparison, LUCC reduced SOC by 4.5 Pg (3.1 to 6.2 Pg), while agricultural management practices increased SOC stock by 0.9 Pg. Moreover, we found 45% of the study area was characterized by continuously decreasing SOC caused by LUCC, and SOC in 13% and 31% of the area was fully and partially recovered, respectively, since 1850. Agricultural management was estimated to increase the area of full recovery and partial recovery by 8.5% and 1.1%. Our results imply that LUCC plays an essential role in regional C balance, and more importantly, sustainable land management can be beneficial for strengthening C sequestration of the agroecosystems in the Midwestern US, which may serve as an important contributor to C sinks in the US. |
英文关键词 | agricultural management carbon storage change cropland land use and cover change Midwestern US soil carbon vegetation carbon |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000433717700036 |
WOS关键词 | MULTIFACTOR ENVIRONMENTAL-CHANGES ; GLOBAL VEGETATION MODELS ; SOIL ORGANIC-CARBON ; CROPLAND EXPANSION ; DIOXIDE EMISSIONS ; CLIMATE ; RESOLUTION ; BIOSPHERE ; PATTERNS ; CO2 |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
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/17479 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Iowa State Univ, Dept Ecol Evolut & Organismal Biol, Ames, IA 50011 USA; 2.Auburn Univ, Int Ctr Climate & Global Change Res, Auburn, AL 36849 USA; 3.Auburn Univ, Sch Forestry & Wildlife Sci, Auburn, AL 36849 USA |
推荐引用方式 GB/T 7714 | Yu, Zhen,Lu, Chaoqun,Cao, Peiyu,et al. Long-term terrestrial carbon dynamics in the Midwestern United States during 1850-2015: Roles of land use and cover change and agricultural management[J]. GLOBAL CHANGE BIOLOGY,2018,24(6):2673-2690. |
APA | Yu, Zhen,Lu, Chaoqun,Cao, Peiyu,&Tian, Hanqin.(2018).Long-term terrestrial carbon dynamics in the Midwestern United States during 1850-2015: Roles of land use and cover change and agricultural management.GLOBAL CHANGE BIOLOGY,24(6),2673-2690. |
MLA | Yu, Zhen,et al."Long-term terrestrial carbon dynamics in the Midwestern United States during 1850-2015: Roles of land use and cover change and agricultural management".GLOBAL CHANGE BIOLOGY 24.6(2018):2673-2690. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论