Effects of Different Vegetation Restoration Types on Permeability and Water Holding Capacity of Degraded Granite Red Soil
Journal Title: Bulletin of Soil and Water Conservation - Year 2023, Vol 43, Issue 2
Abstract
[Objective] The effects of different vegetation restoration types on the permeability and water holding capacity of degraded granite red soil were studied in order to provide a theoretical basis for soil and water conservation and accurate restoration of degraded red soil in this area. [Methods] With seriously degraded granite red soil and natural forest (NV) as the control treatment, we determined the soil permeability and soil water holding capacity of degraded granite red soil under different vegetation restoration types using field investigation, laboratory analysis, and the ring knife method. [Results] Soil permeability decreased with increasing soil depth for different vegetation restoration types. The characteristic values of soil infiltration followed the order of initial infiltration rate > average infiltration rate > stable infiltration rate. The soil permeability and the total amount of soil permeability in the first 30 min for the different vegetation types were compared with that of NV. Soil permeability and total soil permeability in the first 30 min followed the order of NV > arbor, shrub, grass (ASG) > grass in irrigation ditches (GGH) > closed canopy (CC) > low-efficiency forest transformation (IFT) > grass sown in the whole slope (FSG) > severely degraded land (HDL). The sequence of saturated water storage in the 0—40 cm soil layer followed the order of NV > ASG > GGH > CC > IFT > FSG > HDL. Redundancy analysis of soil permeability indexes and soil physical and chemical properties from the 0—5 cm soil layer showed that soil hardness, soil bulk density, silt content, and sand content were the factors that restricted soil permeability, and soil organic carbon, total nitrogen, total phosphorus, available phosphorus, total potassium, available potassium, pH value, and clay content were the important factors that could increase soil permeability. [Conclusion] ASG was the best vegetation restoration type to increase soil permeability and water holding capacity.
Authors and Affiliations
Yonghui Bai, Xuan Zha, Weicheng Wu, Lanhua Mao
Keywords
Related Articles
- EP ID EP762506
- DOI 10.13961/j.cnki.stbctb.2023.02.002
- Views 12
- Downloads 0
Spatiotemporal Analysis and Prediction of Ecological Footprint of Water Resources in Lower Reaches of Yellow River Basin
[Objective] The ecological carrying capacity of water resources in the lower reaches of the Yellow River basin was evaluated in order to provide a theoretical basis for regional water resource management and planning. [M...
Spatial-temporal Evolution Characteristics and Influencing Factors of Carbon Emissions in Yunnan Province Based on Land Use Changes
[Objective] The temporal and spatial variation of carbon emissions due to land use changes and the factors influencing carbon emissions in Yunnan Province were analyzed in order to provide a theoretical basis for optimiz...
Changes in Forest Spatial Patterns Based on Source-sink Principle
[Objective] The mechanism underlying the spatial and temporal variation characteristics of regional forest cover was studied by using the source-sink landscape principle in order to provide a basis for decision-making re...
Ecological Security Evaluation of Natural Resources in Wuhan City Based on a Framework of Contribution, Vigor, Organization and Resilience
[Objective] An assessment framework for ecological security evaluation of natural resources was constructed to further analyze its evolution law in response to urbanization, in order to provie references for regional ter...
Identification of Urban Ecological Corridors and Key Nodes in Dongguan City from Waterfowls-Friendly Perspective
[Obiective] The spatial distribution pattern of waterfowl ecological corridors in Dongguan City, Guangdong Province were studied in order to provide a realistic basis for its ecological restoration. [Methods] We consider...