Home | Contact Us | Sitemap | 中文 | CAS | Director's Email
Location:Home > Papers > Recent Papers
Hydrological characteristics and available water storage of typical karst soil in SW China under different soil-rock structures TEXT SIZE: A A A

Soil hydrological characteristics are influenced by factors such as parent rock weathering, human activities, and soil texture. However, the influence of the complex soil-rock structures and heterogeneous soil types on soil hydrological characteristics resulting from the weathering of carbonate rocks into soils on slopes in the karst region of SW China is not fully understood. The relationships between zonal and nonzonal soil hydrological characteristic differences, land uses, and soil-rock structures were analyzed using a typical watershed in the SW China karst region. In this study, (1) the difference between zonal and nonzonal soil hydrological characteristics is significant. For infiltration capacity (K-s), yellow soil (19.50 similar to 1058.00 cm.d(-1)) < limestone soil (34.50 similar to 2364.00 cm.d(-1)), while for soil available water storage, limestone soil on the dolomitic slope (43.26 mm) > yellow soil (20.16 similar to 35.25 mm) > limestone soil on the limestone slope (17.73 similar to 34.72 mm). (2) Land-use practices and soil-rock structures have long affected the hydrological characteristics of soil in karst. (3) The bare bedrock on carbonate slopes leads to a reduction in the total amount of soil per unit area on the slope, which compresses the space for vegetation growth and reduces the total amount of water provided by the soil for vegetation growth per unit area, which confirms one of the reasons for the low plant biomass in karst. These results suggest that the utilization of soil water in karst areas should consider the weights of soil type, lithology, and soil-rock structures.

Publication name

 Geoderma, Volume 438, DOI 10.1016/j.geoderma.2023.116633, Article Number 116633, Published OCT 2023


 Li, Yanqiu; Wang, Shijie; Peng, Tao; Zhao, Guozheng; Dai, Bin

Corresponding author(s) 

 Peng, Tao
 Chinese Acad Sci, State Key Lab Environm Geochem, Inst Geochem, Guiyang 550081, Peoples R China

Author(s) from IGCAS   Peng, Tao; Li, Yanqiu; Wang, Shijie; Zhao, Guozheng; Dai, Bin

View here for the details 

Copyright © Institute Of Geochemistry, Chinese Academy of Sciences All Rights Reserved.
Address: 99 West Lincheng Road, Guanshanhu District, Guiyang, Guizhou Province 550081, P.R.China
Tel: +86-851-85895239 Fax: +86-851-85895239 Email: web_en@mail.gyig.ac.cn