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- W2355971539 abstract "The vertical distribution of root system under different ground water gradients in MaoWuSu sandland were investigated.The results showed that: roots system under different ground water level decreased with the increasing of soil depth. Due to the difference of soil water content and vegetation roots type,the distribution of vegetation roots under different moisture content gradient was different.Simulation equation of roots under different gradient with soil vertical depth are: :y = 9.5736e-0.1341x R2= 0.8859(I),y = 16.246e-0.2037x R2= 0.9301(II),y = 32.001e-0.1904x R2= 0.9544(III)、y = 28.336e-0.1993x R2= 0.9484(IV);Soil water content variation was different under different ground water level.The variation of soil water content at each layer was different under the same ground water level.Variant coefficient of soil water content was the biggest at 0.1m depth,variant coefficient reduce with soil depth increased.According to analyzsis variant coefficient on soil water content the soil layers were divided: active layer(0-0.1m)、subactive(0.2-0.6m),relative stable layer(1m)(I,II,III)and gradient IV called active layer: active layer(0-0.1m、 1m),relative stable layer(0.3m).The relation between roots biomass vertical distribution and its ground level was obviously opposite.Variation of soil moisture was opposite to variation of roots biomass.When soil moisture increased,roots biomass at the same areas reduced.With the moisture gradient increased,the most used moisture layer was closed to soil surface,from gradient I 0.4m is 6.84 to gradient IV 0.1m is 14.33." @default.
- W2355971539 created "2016-06-24" @default.
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- W2355971539 date "2008-01-01" @default.
- W2355971539 modified "2023-09-23" @default.
- W2355971539 title "Relationship Between Soil Water Content and Vertical Distribution of Root System Under Different Ground Water Gradients in MaoWuSu Sandy Land" @default.
- W2355971539 hasPublicationYear "2008" @default.
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