Soil resistance to flowing water erosion as affected by tea planting age in Three Gorges Reservoir Area of China

Guanhua Zhang, Wenjun Yang, Jiajun Hu, Jigen Liu, Wenfeng Ding and Hai Xiao
Additional contact information
Guanhua Zhang: Changjiang River Scientific Research Institute, Changjiang Water Resources Commission, Wuhan, P.R. China
Jiajun Hu: Changjiang Water Resources Commission of the Ministry of Water Resources, Wuhan, P.R. China
Jigen Liu: Changjiang River Scientific Research Institute, Changjiang Water Resources Commission, Wuhan, P.R. China
Wenfeng Ding: Changjiang River Scientific Research Institute, Changjiang Water Resources Commission, Wuhan, P.R. China
Hai Xiao: College of Civil Engineering & Architecture, China Three Gorges University, Yichang, P.R. China

Soil and Water Research, 2023, vol. 18, issue 2, 116-127

Abstract: Soil erosion resistance is influenced by intrinsic soil properties and multiple external factors. This study investigated the effect of tea planting age on soil resistance to flowing water erosion (reflected by rill erodibility (Kr) and critical shear stress (τc)) in Three Gorges Reservoir Area. One slope farmland (as the control) and five tea plantations cultivated for 3 to 34 years were selected for sampling sites. The results indicated that bulk density (BD), soil cohesion (Coh), water stable aggregate (WSA), mean weight diameter (MWD), soil organic carbon (SOC), litter density (LD), and root mass density (RMD) increased generally with tea planting age. Compared to the control, Kr of tea plantations reduced by 71.1%-85.3%. The temporal variation in soil erosion resistance was controlled greatly by the variations in most near-surface characteristics. Kr decreased with WSA, Coh, LD, RMD, and SOC following a power function (P < 0.01); τc increased with MWD, LD, RMD, and SOC as an exponential function, with BD a power function, and Coh a logarithmic function (P < 0.01). In this study, Kr could be simulated well by WSA and LD with a power function, and τc could be simulated well by MWD and RMD with an exponential function.

Keywords: critical shear stress; near-surface characteristics; rill erodibility; soil erosion resistance; tea cultivation age (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://swr.agriculturejournals.cz/doi/10.17221/157/2022-SWR.html (text/html)
http://swr.agriculturejournals.cz/doi/10.17221/157/2022-SWR.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlswr:v:18:y:2023:i:2:id:157-2022-swr

DOI: 10.17221/157/2022-SWR

Access Statistics for this article

Soil and Water Research is currently edited by Ing. Markéta Knížková, (Executive Editor)

More articles in Soil and Water Research from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().