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Journal of Desert Research ›› 2020, Vol. 40 ›› Issue (4): 146-153.DOI: 10.7522/j.issn.1000-694X.2019.00097

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Impacts of rapid land use change on soil infiltration in an arid desert area

Runxia Zhang1,2,3(), Xueyong Zhao1(), Jing Li2, Wenqiang Lv2, Yuanyuan Chai1,2,3, Hongqing Yue2   

  1. 1.Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
    2.Gansu Institute of Soil and Water Conservation Science, Lanzhou 730000, China
    3.University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2019-08-31 Revised:2019-10-25 Online:2020-08-20 Published:2020-09-01
  • Contact: Xueyong Zhao

Abstract:

Studying on soil infiltration and its influence factors in different land use types are beneficial to urban runoff regulation and land management. This research selected six land use types (e.g. natural forest, artificial forest, natural grassland, land to be constructed, cropland, abandoned land) and observed the process of soil infiltration using disc permeameter. Correlation analysis and principal component analysis were used to establish the relationship between soil infiltration and soil properties. The results showed that land use change could increase soil bulk density and sand content, while decrease total porosity and soil saturated water content during urbanization. The parameters of soil infiltration of land to be constructed and artificial forest were significant lower than those of the other land use types. Soil infiltration was positively correlated with soil organic matter, total porosity, soil saturated water content and silt content, while negatively correlated with soil bulk density, sand and clay content. The shift of the other land use types to constructed land and building area had altered soil physicochemical properties and affected soil infiltration.

Key words: rapid urbanization, Lanzhou New District, soil infiltration, arid desert area

CLC Number: