水土保持学报2025，Vol.39Issue(2)：125-134,10.DOI:10.13870/j.cnki.stbcxb.2025.02.032
亚热带森林类型转换对土壤水文物理参数的影响
Impacts of Subtropical Forest Type Conversion on Soil Hydrophysical Characteristics
摘要
Abstract
[Objective]In order to investigate the effects of forest type conversion on the hydrophysical characteristics of forest soils.[Methods]The effects of forest type conversion on soil porosity,permeability,and matric potential,using subtropical natural evergreen broad-leaved forests and the secondary forests were compared,Castanopsis carlesii artificial forests,and Cunninghamia lanceolata artificial forests derived from them as research subjects.[Results]1)After forest type conversion,total soil porosity in the lower soil layer of secondary forests significantly increased by 5.43%compared to natural forests.Soil matric potential also significantly increased in C.lanceolata artificial forests during the dry season by 5.01 kPa compared to natural forests.However,the variation of soil permeability in different forest types was not significant.2)In the 0～40 cm soil layer of the four forest types,soil particles were mainly dominated by sand particles,but only clay particles and silt particles showed a significant correlation with total soil porosity,and soil particle composition was not the controlling factor for soil water-holding indicators under forest type conversion.3)The main controlling factors for soil water-holding indicators were soil bulk density and soil moisture,with significant correlations between soil bulk density and each water-holding indicator,while forest conversion leaded to changes in soil bulk density and soil moisture,thereby causing changes in soil water-holding performance.[Conclusion]Forest type conversion has a significant impact on the hydrophysical parameters of subtropical region soils,with the conversion from natural forests to secondary forests being beneficial for water conservation or soil retention,and conversion to C.lanceolata artificial forests requiring soil amelioration measures to optimize their water retention and permeability.The results can provide a theoretical basis and data support for sustainable management of subtropical forests and water conservation.关键词
林型转换/土壤孔隙度/土壤渗透性/土壤基质势/水文物理参数Key words
forest type conversion/soil porosity/soil permeability/soil matric potential/hydrophysical parameters分类
农业科技引用本文复制引用
郑力轩,吴福忠,杨巧,彭艳,安南南,江华玲,郑俞辰,岳楷..亚热带森林类型转换对土壤水文物理参数的影响[J].水土保持学报,2025,39(2):125-134,10.基金项目
国家自然科学基金项目(32271633,32201342) （32271633,32201342）
福建省2023年中央引导地方科技发展资金项目(2023L3005) （2023L3005）
福建省自然科学基金项目(2022J01642) （2022J01642）
