水土保持学报2025，Vol.39Issue(6)：85-93,9.DOI:10.13870/j.cnki.stbcxb.2025.06.029
三峡水库梅溪河消落带不同土地利用方式土壤入渗特征及其影响因素
Soil Infiltration Characteristics and Their Influencing Factors under Different Land Use Types in Riparian Zone of Meixi River,Three Gorges Reservoir
摘要
Abstract
[Objective]To investigate soil infiltration characteristics and their influencing factors under different land use types in the riparian zone of the Meixi River.[Methods]By combining field in-situ investigation and monitoring with laboratory sample analysis,a systematic study was conducted to investigate the basic physical properties of the soil,soil infiltration characteristics,and their influencing factors in artificially restored forestland,naturally restored grassland,and farmland within the riparian zone of the Meixi River in the Three Gorges Reservoir.[Results]Among the three land use types,grassland exhibited the highest total soil porosity and water holding capacity across all soil layers,while forestland had the greatest non-capillary porosity across all soil layers.Land use types significantly affected the soil infiltration characteristics of the surface layer(0-20 cm)in the riparian zone(p<0.05).The stable infiltration rates of 0-20,20-40 cm soil layers in grassland and forestland were 2.39,0.51 mm/min,and 1.81,0.54 mm/min,respectively,both significantly higher than those of farmland(0.96,0.46 mm/min).The Kostiakov,Philip,and Horton models all effectively simulated the soil infiltration processes under different land use types,with average values of the goodness of fit(R2)ranked as:Philip Model(0.981)>Horton Model(0.977)>Kostiakov Model(0.913).Soil infiltration characteristics were significantly negatively correlated with land use types,soil depth,soil bulk density,and soil pH(p<0.05),while exhibiting significantly positive correlation with total porosity,non-capillary porosity,saturated water holding capacity,organic matter,total nitrogen,and total phosphorus(p<0.05).Among these,soil organic matter,soil pH,and land use types were the primary factors influencing soil infiltration in the riparian zone.[Conclusion]The naturally restored grassland in the riparian zone demonstrates the most effective enhancement of surface soil infiltration performance,while forestland significantly improved the subsurface soil layers.These findings can provide a scientific basis for the prevention and control of soil erosion and the optimized management of land use in the riparian zone of Three Gorges Reservoir.关键词
土壤入渗特征/土地利用方式/消落带/三峡水库Key words
soil infiltration characteristics/land use type/riparian zone/Three Gorges Reservoir分类
农业科技引用本文复制引用
杨得权,邓洁,郭红妍,薛梦涵,高澳寒,王轶浩..三峡水库梅溪河消落带不同土地利用方式土壤入渗特征及其影响因素[J].水土保持学报,2025,39(6):85-93,9.基金项目
重庆市自然科学基金面上项目(CSTB2023NSCQ-MSX0741) （CSTB2023NSCQ-MSX0741）
重庆市教育委员会科学技术研究项目(KJQN202000502) （KJQN202000502）
重庆市技术创新与应用发展专项面上项目(CSTB2023TIAD-LDX0010,CSTB2024TIAD-LDX0001) （CSTB2023TIAD-LDX0010,CSTB2024TIAD-LDX0001）
重庆师范大学基金项目(20XLB005) （20XLB005）
