DOI: 10.1002/2015GB005360
Scopus记录号: 2-s2.0-85017477805
论文题名: Sensitivity of land use change emission estimates to historical land use and land cover mapping
作者: Peng S ; , Ciais P ; , Maignan F ; , Li W ; , Chang J ; , Wang T ; , Yue C
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2017
卷: 31, 期: 4 起始页码: 626
结束页码: 643
语种: 英语
英文关键词: Carbon cycling
; land use and land cover change
; land use emissions
; terrestrial biosphere modeling
Scopus关键词: agricultural land
; biosphere
; carbon budget
; carbon cycle
; carbon emission
; forest ecosystem
; land cover
; land use change
; mapping method
; numerical model
; reconstruction
; terrestrial environment
英文摘要: The carbon emissions from land use and land cover change (ELUC) are an important anthropogenic component of the global carbon budget. Yet these emissions have a large uncertainty. Uncertainty in historical land use and land cover change (LULCC) maps and their implementation in global vegetation models is one of the key sources of the spread of ELUC calculated by global vegetation models. In this study, we used the Organizing Carbon and Hydrology in Dynamic Ecosystems terrestrial biosphere model to investigate how the different transition rules to define the priority of conversion from natural vegetation to agricultural land affect the historical reconstruction of plant functional types (PFTs) and ELUC. First, we reconstructed 10 sets of historical PFT maps using different transition rules and two methods. Then, we calculated ELUC from these 10 different historical PFT maps and an additional published PFT reconstruction, using the difference between two sets of simulations (with and without LULCC). The total area of forest loss is highly correlated with the total simulated ELUC (R2 = 0.83, P < 0.001) across the reconstructed PFT maps, which indicates that the choice of transition rules is a critical (and often overlooked) decision affecting the simulated ELUC. In addition to the choice of a transition rule, the initial land cover map and the reconstruction method for the reconstruction of historical PFT maps have an important impact on the resultant estimates of ELUC. ©2017. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77748
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing, China; Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France; Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Peng S,, Ciais P,, Maignan F,et al. Sensitivity of land use change emission estimates to historical land use and land cover mapping[J]. Global Biogeochemical Cycles,2017-01-01,31(4)