Remote sensing of water use efficiency in Southwest China's karst area.
Climate change
Human activity
Karst region of Southwest China
WUE
Journal
Environmental science and pollution research international
ISSN: 1614-7499
Titre abrégé: Environ Sci Pollut Res Int
Pays: Germany
ID NLM: 9441769
Informations de publication
Date de publication:
Oct 2022
Oct 2022
Historique:
received:
09
02
2022
accepted:
13
05
2022
pubmed:
21
5
2022
medline:
30
9
2022
entrez:
20
5
2022
Statut:
ppublish
Résumé
As the largest contiguous karst area in China, the southwestern karst area is a typical ecologically fragile area affecting local vegetation dynamics. Ecosystem water use efficiency (WUE) is an important factor reflecting the ability of vegetation to produce organic matter with a limited water supply. Therefore, determining the WUE variation trends in this ecologically fragile region is important. In this paper, we used MODIS remote sensing datasets, meteorological data, and land cover data to analyze the spatiotemporal changes in vegetation water use efficiency in the southwestern karst region from 2001 to 2017. We also further quantitatively analyzed the effects of climate change and human activities on the spatial and temporal patterns of vegetation WUE in the study area. The main conclusions were as follows. (1) From 2001 to 2017, in terms of temporal characteristics, the interannual variation in WUE fluctuated greatly, ranging from 1.33 to 1.51 g C kg
Identifiants
pubmed: 35595901
doi: 10.1007/s11356-022-20907-6
pii: 10.1007/s11356-022-20907-6
doi:
Substances chimiques
Water
059QF0KO0R
Carbon
7440-44-0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
71166-71178Subventions
Organisme : Guangxi Key Science and Technology Innovation Base on Karst Dynamics
ID : KDL
Organisme : Guangxi Key Science and Technology Innovation Base on Karst Dynamics
ID : Guangxi202202
Organisme : National Natural Science Foundation of China
ID : 41701391
Organisme : Beijing Natural Science Foundation
ID : 8192037
Organisme : Research and Development Program of Guangxi
ID : AB18050014
Informations de copyright
© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
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