干旱区生态环境知识资源中心(Arid): Unraveling the impacts of droughts and agricultural intensification on the Altiplano water resources

Arid

DOI	10.1016/j.agrformet.2019.107710
	Unraveling the impacts of droughts and agricultural intensification on the Altiplano water resources
	Satge, Frederic 1; Hussain, Yawar 2,3; Xavier, Alvaro 2; Zola, Ramiro Pillco 4; Salles, Leandro 2; Timouk, Franck 5; Seyler, Frederique 1; Garnier, Jeremie 2; Frappart, Frederic 6; Bonnet, Marie-Paule 1
通讯作者	Satge, Frederic
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2019
卷号	279
英文摘要	During the last decades, agriculture has drastically increased over the South American Andean Plateau (Altiplano), resulting in extensive changes in land cover from native vegetation to essentially Quinoa crop. Along with climatic variability, these land use changes appear as a catalyst in worsening the already existing drought events and water scarcity processes. Hence, understanding their relative contributions to the regional desertification process is crucial for sustainable water-use adaptation, but also is quite ambiguous because of water resource data scarcity over the Altiplano. Therefore, in the present study, an attempt to measure the impact of severe droughts and agricultural intensification on the water resources has been made using remote sensing datasets. The first step was dedicated to the validation of newly released CHIRPS v.2 precipitation and GLEAM v.3 potential evapotranspiration products by comparing their estimates with the results obtained from gauges data. Then, the Standardized Precipitation Index (SPI) was used to describe past hydro-meteorological drought events in terms of their spatial extent, duration, intensity and their impacts on the regional water resources. Finally, the dynamic trends in the spatial extent of the Quinoa crop and the meteorological conditions derived from CHIRPS v.2 and GLEAM v.3 were compared with the Vegetation Condition Index (VCI) and the Total Water Storage (TWS) derived from AVHRR and GRACE data respectively, to observe the respective influence of agriculture and climate variability on the regional hydrological system. A significant increase in Quinoa crop extent is observed from 2001 which corresponds to a significant decrease in regional VCI and TWS. Based on this trend, agriculture appears as a contributing factor in the water scarcity process over the Altiplano. The outcomes of this study will contribute to local decision making for a better water management and hydro-meteorological monitoring system.
英文关键词	Climate Agriculture Water scarcity Hydrological drought Remote sensing
类型	Article
语种	英语
国家	France ; Brazil ; Bolivia
收录类别	SCI-E
WOS记录号	WOS:000500197400021
WOS关键词	QUINOA PRODUCTION ; METAL CONCENTRATION ; SOUTHERN BOLIVIA ; TRACE-ELEMENTS ; CLIMATE-CHANGE ; PRECIPITATION ; EXPOSURE ; VARIABILITY ; ACCURACY ; TITICACA
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
EI主题词	2019-12-15
来源机构	French National Research Institute for Sustainable Development ; E17
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311747
作者单位	1.IRD, UMR 228, Espace Dev ESPACE DEV, Montpellier, France; 2.Univ Brasilia UnB, Inst Geociencias, Brasilia, DF, Brazil; 3.Univ Brasilia, Dept Engn Civil & Ambiental, Brasilia, DF, Brazil; 4.UMSA, IHH, La Paz, Bolivia; 5.IRD, GET, UMR 5563, Toulouse, France; 6.Univ Toulouse, UPS, UMR 5566, CNES,CNRS,IRD,LEGOS, 14 Ave Edouard Belin, F-31400 Toulouse, France
推荐引用方式 GB/T 7714	Satge, Frederic,Hussain, Yawar,Xavier, Alvaro,et al. Unraveling the impacts of droughts and agricultural intensification on the Altiplano water resources[J]. French National Research Institute for Sustainable Development, E17,2019,279.
APA	Satge, Frederic.,Hussain, Yawar.,Xavier, Alvaro.,Zola, Ramiro Pillco.,Salles, Leandro.,...&Bonnet, Marie-Paule.(2019).Unraveling the impacts of droughts and agricultural intensification on the Altiplano water resources.AGRICULTURAL AND FOREST METEOROLOGY,279.
MLA	Satge, Frederic,et al."Unraveling the impacts of droughts and agricultural intensification on the Altiplano water resources".AGRICULTURAL AND FOREST METEOROLOGY 279(2019).