332 resultados para forest soils

Geographical tendencies of trace element contents in soils deri ed from granite

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Human activity and soil fertility-nutrients depletion of arable soils in China

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Mineral composition and weathering of soils derived from Xiashu loess

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Mineralization and transformation of nitrogen derived from plant meterials in soils in over 10 years

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Natural nitrogen-15 abundance of ammonium nitrogen and fixed ammonium in soils

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Relationship between iron oxides and surface charge characteristies in soils

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Salt-water dynamics in soils:II.Effect of crop planting

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Si,Fe and Mn distribution in rice rhizosphere of red earth and paddy soils

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Specific adsorption of trivalent La,Ce and Y by soils and ferromanganese oxides

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Surface chemical properties of colloides in main soils of China

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Toxicity of Cu and Cd in soils and detoxication by additives

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Zn adsorption by ariable cherge soils in relation to pH

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Zn adsorption by variable charge soils in relation to pH

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Factors affecting senstivity of variable charge soils to acid rain

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A preliminary study on identification of clay minerals in soils with reference to reflectance spectra

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