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[1]HAN Fu,WANG Baiqun,ZHANG Shangpeng,et al.Driving Effects of Vegetation on the Distributions of Soil Aggregates and Phosphorus in Ziwuling Mountain[J].Research of Soil and Water Conservation,2019,26(05):118-122.

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Driving Effects of Vegetation on the Distributions of Soil Aggregates and Phosphorus in Ziwuling Mountain

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 05 Page number: 118-122 Column: Public date: 2019-09-06

Title:: Driving Effects of Vegetation on the Distributions of Soil Aggregates and Phosphorus in Ziwuling Mountain

Author(s):: HAN Fu¹, WANG Baiqun^1,2,3, ZHANG Shangpeng⁴, YU Jialuo⁴; 1. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Sate Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. Institute of Soil and Water Conservation, Chinese Academy of Sciences and ministry of Water Resources, Yangling, Shannxi 712100, China;
4. University of Chinese Academy of Sciences, Beijing 100049, China

Keywords:: soil aggregate; soil phosphorus; vegetation; Ziwuling Mountain

CLC:: S152.4⁺9;S153.6⁺1;S158.3

DOI:: -

Abstract:: The study on the change and distribution of phosphorus (P) in soils grown crops, grass or forest was conducted in Ziwuling Mountain. The contents of different sizes of macroaggregates declined with the increase in soil depth in grassland or forestland. In the grassland, the roots of grass caused the P in deep soil layers to move to the topsoil, which resulted in the level of P in topsoil was greater than that in the subsoil. And in the forestland, the dissolved P derived from decaying leaves or topsoil moved to subsoil due to water movement, which caused that the contents of P in subsoil was greater than that in topsoil. It could be seen that the mechanisms driving P distribution in soil profile were different between grass and forest. It was understood that grass and forest could promote the formation of soil macroaggregate. P distributed in the aggregate sizes of >0.25 mm decreased with the increase in soil depth, and P distributed in the aggregate sizes of <0.25 mm, in turn, rose with the increase in soil depth in grassland or forestland. These results suggested that growth of grass or forest could make P distribute in the macroaggregates and P could lead the formation of macroaggregates and the stability of aggregates in the grassland or forestland.

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