大别山北麓林下间作茶叶对改善土壤水分入渗的影响  

Impacts of intercropping tea trees under forest on soil water infiltration in the northern of Dabie Mountains

作　　者：朱芸[1] 杜晨曦 孙蕾 刘霞[1] JAMSHIDI Abdul Hakim 张守昊 ZHU Yun;DU Chenxi;SUN Lei;LIU Xia;JAMSHIDI Abdul Hakim;ZHANG Shouhao(Collaborative Innovation Center of Sustainable Forestry in Southern China of Jiangsu Province,Jiangsu Provincial Key Lab of Soil Erosion and Ecological Restoration,Nanjing Forestry University,Nanjing 210037,China;Monitoring Center Station of Soil and Water Conservation,Huaihe River Commission,Ministry of Water Resources,Bengbu 233001,China)

机构地区：[1]南京林业大学南方现代林业协同创新中心,江苏省水土保持与生态修复重点实验室,南京210037 [2]淮河水利委员会淮河流域水土保持监测中心站,蚌埠233001

出　　处：《农业工程学报》2024年第19期72-82,共11页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金项目(32071840、31070627);国家重点研发计划子课题“侵蚀退化耕地生产力快速提升技术”(2018YFC0507005)。

摘　　要：土壤水分入渗是受土地利用类型(覆盖)变化影响显著的水文过程。为探明坡式经济林开发对土壤水分入渗的影响及其影响因素,该研究选取安徽省金寨县4种开发栽培模式(板栗经济林、板栗+茶间作、油茶经济林和油茶+茶间作,以杂木林为对照),选取Philip、Kostiakov、Kostiakov-lewis和Horton 4种模型对其在不同开发栽培模式下的适用性进行评价。结果表明:1)坡式经济林开发为板栗经济林、板栗+茶间作、油茶经济林和油茶+茶间作后,土壤水分入渗性能显著降低,平均入渗率、初始入渗率和稳定入渗率下降幅度分别为46.14%~64.88%、39.60%~58.97%和49.88%~72.84%。初始入渗率和稳定入渗率的大小排序为杂木林、板栗+茶间作、油茶+茶间作、板栗经济林、油茶经济林;而平均入渗率在板栗+茶间作和油茶+茶间作中无显著性差异(P>0.05)。2)相关性及通径分析表明,力稳性>5.00 mm粒级团聚体、水稳性平均重量直径和力稳性平均重量直径与土壤水分入渗性能(初始入渗率、平均入渗率、稳定入渗率)呈显著正相关(P<0.05),是影响土壤水分入渗特征的主要因素,且力稳性>5.00 mm团聚体是主要影响因子。3)Kostiakov模型最适合描述土壤入渗速率的特征。研究结果可为研究区开发栽培模式的选择提供参考。Soil water infiltration,a hydrological process,can be significantly dominated by land use types(vegetation cover).There is also some impact on the formation and distribution of slope runoff,soil moisture regulation,water conservation,and soil conservation.This study aims to investigate the impact of slope economic forest development on soil water infiltration,in order to determine the main influencing factors on the soil water infiltration.Field surveys and visits were carried out as well.Four cultivation modes were selected from Jinzhai County,Anhui Province,including Castanea Mollissima forest,Castanea Mollissima with tea interplanting,Camellia Oleifera forest,and Camellia Oleifera with tea interplanting,with Miscellaneous Wood forest as the control.Indoor experiments were then combined with field investigations.A systematic analysis was implemented to explore the main influencing factors of soil water infiltration,including the soil bulk density(BD),porosity,soil mechanical composition,soil organic matter(SOM),soil aggregate structure,and soil water infiltration characteristics(Initial infiltration rate,steady infiltration rate,average infiltration rate)under different cultivation modes.Meanwhile,four models were selected to evaluate their applicability under different cultivation modes,including Philip,Kostiakov,Kostiakov-Lewis,and Horton.The results showed:1)The soil water infiltration significantly decreased after the cultivation of slope economic forests into Castanea Mollissima forest,Castanea Mollissima with tea interplanting,Camellia Oleifera forest and Camellia Oleifera with tea interplanting.The average infiltration rate(AIR),initial infiltration rate(IIR),and stable infiltration rate(SIR)decreased by 46.14%to 64.88%,39.60%to 58.97%,and 49.88%to 72.84%,respectively.The initial infiltration rate and stable infiltration rate were ranked in the descending order as follows:Miscellaneous Wood forest,Castanea Mollissima with tea interplanting,Camellia Oleifera with tea interplanting,Castanea Mollissima fore

关 键 词：土壤水分 入渗 模型 通径分析 坡式经济林 开发栽培模式 

分 类 号：S152.7[农业科学—土壤学]