The effect of land use structure on the distribution of soil nutrients in the hilly area of the Loess Plateau, China |
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Authors: | Bojie Fu Keming Ma Huafeng Zhou Liding Chen |
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Institution: | (1) Research Center for Eco-Environmental sciences, Chinese Academy of Sciences, 100085 Beijing, China |
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Abstract: | The irrational land use is one of the main reasons for the soil erosion and nutrienloss in the loess hilly area of China.
In this project, 4 types of typical land use structure of sustain ment for about 15 years in the loess hill slope are selected
to study the effect of land use structure on the distribution of soil nutrients. From hill bottom to hill top, the patterns
of land use types are: grassland-slope farmland-forest, slope farmland-grassland-forest, terrace-grasslandforest and slope
farmland-forest-grassland. By measuring the contents of the total N, total P, available N, available P and organic matter
of soils, the results show that the land use structure types of slope farmland-grassland-forest and terrace-grassland-forest
have a better capacity to maintain the soil nutrients. |
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Keywords: | hilly area Loess Plateau land use structure soil nutrient soil erosion |
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