Arid
DOI10.1016/j.scitotenv.2021.149700
Spatial patterns and driving factors of aboveground and belowground biomass over the eastern Eurasian steppe
Ding, Lei; Li, Zhenwang; Shen, Beibei; Wang, Xu; Xu, Dawei; Yan, Ruirui; Yan, Yuchun; Xin, Xiaoping; Xiao, Jingfeng; Li, Ming; Wang, Ping
Corresponding AuthorXin, XP (corresponding author), Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Hulunber Grassland Ecosyst Observat & Res St, Beijing 100081, Peoples R China. ; Xiao, JF (corresponding author), Univ New Hampshire, Earth Syst Res Ctr, Inst Study Earth Oceans & Space, Durham, NH 03824 USA.
JournalSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
EISSN1879-1026
Year Published2022
Volume803
Abstract in EnglishThe Eurasian steppe is the largest steppe region in the world and is an important part of the global grassland ecosystem. The eastern Eurasian steppe has favorable hydrothermal conditions and has the highest productivity and the richest biodiversity. Located in the arid and semi-arid region, the eastern Eurasian steppe has experienced large-scale grassland degradation due to dramatic climate change and intensive human activities during the past 20 years. Hence, accurate estimation of aboveground biomass (AGB, gC m(-2)) and belowground biomass (BGB, gC m(-2)) is necessary. In this study, plenty of AGB and BGB in-situ measurements were collected among dominated grassland types during summer in 2013 and 2016-2018 in the eastern Eurasian steppe. Vegetation indices from the Moderate Resolution Imaging Spectroradiometer (MODIS), Digital Elevation Model (DEM) and climate variables were chosen as independent variables to establish predictive models for AGB and BGB with random forest (RF). Both AGB (R-2 = 0.47, MAE = 21.06 gC m(-2), and RMSE = 27.52 gC m(-2)) and BGB (R-2 = 0.44, MAE = 173.02 gC m(-2), and RMSE = 244.20 gC m(-2)) models showed acceptable accuracy. Then the RF models were applied to generate spatially explicit AGB and BGB estimates for the study area over the last two decades (2000-2018). Both AGB and BGB showed higher values in the Greater Khingan Mountains and decreased gradually to the east and west sides. The mean values for AGB and BGB were 62.16 gC m(-2) and 531.35 gC m(-2), respectively. The climatic factors were much more important in controlling biomass than anthro-pogenic drivers, and shortage of water and raising temperature were the main limiting factor of AGB and BGB, respectively, in the peak growth season. These findings provide scientific data for the scientific management of animal husbandry and can contribute to the sustainable development of grassland ecology in the eastern Eurasian steppe. (C) 2021 Published by Elsevier B.V.
Keyword in EnglishCarbon cycle MODIS Climatic factors Human activity Aboveground biomass Belowground biomass
SubtypeArticle
Language英语
Indexed BySCI-E
WOS IDWOS:000702878600017
WOS KeywordNET PRIMARY PRODUCTIVITY ; INNER-MONGOLIA ; CARBON STORAGE ; GRASSLAND BIOMASS ; SOIL-TEMPERATURE ; SPATIOTEMPORAL VARIATIONS ; TERRESTRIAL ECOSYSTEMS ; CLIMATIC-CHANGE ; RANDOM FOREST ; ALLOCATION
WOS SubjectEnvironmental Sciences
WOS Research AreaEnvironmental Sciences & Ecology
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/364612
Affiliation[Ding, Lei; Shen, Beibei; Wang, Xu; Xu, Dawei; Yan, Ruirui; Yan, Yuchun; Xin, Xiaoping] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Hulunber Grassland Ecosyst Observat & Res St, Beijing 100081, Peoples R China; [Li, Zhenwang] Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China; [Xiao, Jingfeng] Univ New Hampshire, Earth Syst Res Ctr, Inst Study Earth Oceans & Space, Durham, NH 03824 USA; [Li, Ming; Wang, Ping] China Geol Survey, Nat Resources Comprehens Survey Command Ctr, Beijing 100037, Peoples R China
Recommended Citation
GB/T 7714
Ding, Lei,Li, Zhenwang,Shen, Beibei,et al. Spatial patterns and driving factors of aboveground and belowground biomass over the eastern Eurasian steppe[J],2022,803.
APA Ding, Lei.,Li, Zhenwang.,Shen, Beibei.,Wang, Xu.,Xu, Dawei.,...&Wang, Ping.(2022).Spatial patterns and driving factors of aboveground and belowground biomass over the eastern Eurasian steppe.SCIENCE OF THE TOTAL ENVIRONMENT,803.
MLA Ding, Lei,et al."Spatial patterns and driving factors of aboveground and belowground biomass over the eastern Eurasian steppe".SCIENCE OF THE TOTAL ENVIRONMENT 803(2022).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ding, Lei]'s Articles
[Li, Zhenwang]'s Articles
[Shen, Beibei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ding, Lei]'s Articles
[Li, Zhenwang]'s Articles
[Shen, Beibei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ding, Lei]'s Articles
[Li, Zhenwang]'s Articles
[Shen, Beibei]'s Articles
Terms of Use
No data!
Social Bookmark/Share

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.