Impact of Grazing and Tillage on Water Erosion in Northeastern Syria
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概要
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Impact of grazing and tillage on water erosion under natural rainfall conditions was investigated during the 1994/95 and 1995/96 rainy seasons in the Abd Al-Aziz mountain region, northeastern Syria. The grazing impact was not significant (0.4 Mg ha^<-1> y^<-1> at most) because the vegetation coverage was relatively abundant. Tillage enhanced soil loss (1.4 Mg ha^lt;-1> y^<-1>) presumably due to the mechanical disturbance and the removal of shrub species. The ratio of the total nitrogen content in the sediments to that in the bulk soils (enrichment ratio) in the cropland exceeded unity, suggesting the selective removal of the organic matter by water erosion. Measures to reduce water erosion and to replenish organic matter should be taken.
- 社団法人日本土壌肥料学会の論文
著者
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KOSAKI Takashi
Graduate School of Urban Environmental Sciences Tokyo Metropolitan University
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SHINJO Hitoshi
Graduate School of Agriculture, Kyoto University
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Shinjo Hitoshi
Graduate School Of Agriculture Kyoto University
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Fujita H
College Of Agriculture Ibaraki University
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Kosaki Takashi
Graduate School Of Agriculture Kyoto University
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Fujita Haruhiro
Japan International Research Center for Agricultural Sciences
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Gintzbuger Gus
International Center for Agricultural Research in the Dry Areas
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