SisAgriV1, Main, Exploration, bibRecordById, pubmed:17690990

Soil salinity evolution and its relationship with dynamics of groundwater in the oasis of inland river basins: case study from the Fubei region of Xinjiang Province, China.

Identifieur interne : 000912 ( Main/Exploration ); précédent : 000911; suivant : 000913

Soil salinity evolution and its relationship with dynamics of groundwater in the oasis of inland river basins: case study from the Fubei region of Xinjiang Province, China.

Auteurs : Yugang Wang [République populaire de Chine] ; Duning Xiao ; Yan Li ; Xiaoyu Li

Source :

Environmental monitoring and assessment [ 0167-6369 ] ; 2008.

RBID : pubmed:17690990

Descripteurs français

Wicri :
- geographic : République populaire de Chine.

English descriptors

KwdEn :
- China, Fresh Water (chemistry), Geographic Information Systems, Sodium Chloride (analysis), Soil (analysis).
MESH :
- chemical , analysis : Sodium Chloride, Soil.
- geographic : China.
- chemistry : Fresh Water.
- Geographic Information Systems.

Abstract

Soil salinization is an important worldwide environmental problem, especially in arid and semi-arid regions. Knowledge of its temporal and spatial variability is crucial for the management of oasis agriculture. The study area has experienced dramatic change in the shallow groundwater table and soil salinization during the 20th century, especially in the past two decades. Classical statistics, geostatistics and geographic information system (GIS) were applied to estimate the spatial variability of the soil salt content in relation to the shallow groundwater table and land use from 1983 to 2005. Consumption of reservoir water for agricultural irrigation was the main cause of a rise in the shallow groundwater table under intense evapotranspiration conditions, and this led indirectly to soil salinization. The area of soil salt accumulation was greater in irrigated than in non-irrigated landscape types with an increasing of 40.04% from 1983 to 2005 in cropland at approximately 0.43 t ha(-1) year(-1), and an increase at approximately 0.68 t ha(-1) year(-1) in saline alkaline land. Maps of the shallow groundwater table in 1985 and 2000 were used to deduce maps for 1983 and 1999, respectively, and the registration accuracy was 99%.

DOI: 10.1007/s10661-007-9867-z
PubMed: 17690990

Affiliations:

République populaire de Chine

Le document en format XML

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<author><name sortKey="Xiao, Duning" sort="Xiao, Duning" uniqKey="Xiao D" first="Duning" last="Xiao">Duning Xiao</name>
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<author><name sortKey="Li, Yan" sort="Li, Yan" uniqKey="Li Y" first="Yan" last="Li">Yan Li</name>
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<front><div type="abstract" xml:lang="en">Soil salinization is an important worldwide environmental problem, especially in arid and semi-arid regions. Knowledge of its temporal and spatial variability is crucial for the management of oasis agriculture. The study area has experienced dramatic change in the shallow groundwater table and soil salinization during the 20th century, especially in the past two decades. Classical statistics, geostatistics and geographic information system (GIS) were applied to estimate the spatial variability of the soil salt content in relation to the shallow groundwater table and land use from 1983 to 2005. Consumption of reservoir water for agricultural irrigation was the main cause of a rise in the shallow groundwater table under intense evapotranspiration conditions, and this led indirectly to soil salinization. The area of soil salt accumulation was greater in irrigated than in non-irrigated landscape types with an increasing of 40.04% from 1983 to 2005 in cropland at approximately 0.43 t ha(-1) year(-1), and an increase at approximately 0.68 t ha(-1) year(-1) in saline alkaline land. Maps of the shallow groundwater table in 1985 and 2000 were used to deduce maps for 1983 and 1999, respectively, and the registration accuracy was 99%.</div>
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<name sortKey="Xiao, Duning" sort="Xiao, Duning" uniqKey="Xiao D" first="Duning" last="Xiao">Duning Xiao</name>
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Système d'information stratégique et agriculture (serveur d'exploration)

Soil salinity evolution and its relationship with dynamics of groundwater in the oasis of inland river basins: case study from the Fubei region of Xinjiang Province, China.

Soil salinity evolution and its relationship with dynamics of groundwater in the oasis of inland river basins: case study from the Fubei region of Xinjiang Province, China.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki

	Système d'information stratégique et agriculture (serveur d'exploration)
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