鲁中南石灰岩山地针阔混交林土壤理化性状及水文效应  

Soil Physical and Chemical Properties and Hydrological Effects of Coniferous and BroadLeaved Mixed Forest in Limestone Mountains

作　　者：李小倩[1] 杨吉华[1] 魏晓明[1] 

机构地区：[1]山东农业大学林学院山东省土壤侵蚀与生态修复重点实验室,山东泰安271018

出　　处：《水土保持学报》2016年第1期208-211,230,共5页Journal of Soil and Water Conservation

基　　金：世界银行贷款山东生态造林项目"干旱瘠薄山地造林树种及造林模型选择研究"(SEAP-KY-1P112759)

摘　　要：为选择出适宜鲁中南石灰岩山地的针阔混交林模式,以山东省新泰市扒石山小流域栽植的5种10a生针阔混交林为研究对象,采用野外调查与室内测定相结合的方法,系统分析针阔混交林模式下的枯落物蓄积量、土壤理化性质、土壤渗透速率、土壤水文效应等指标,研究不同针阔混交林对林地土壤理化性状和土壤水文效应的改良效果。结果表明:5种混交林模式下的各项指标均差异显著,且针阔混交林的各项指标均优于侧柏纯林,其中针阔混交林的各项指标均以侧柏刺槐混交林最优,侧柏黄连木混交林较差;林地土壤理化性状和水文效应的改良效果依次为:侧柏刺槐混交林>侧柏苦楝混交林>侧柏五角枫混交林>侧柏臭椿混交林>侧柏黄连木混交林。在鲁中南石灰岩山地营造针阔混交林时,应优先选择侧柏刺槐混交林和侧柏苦楝混交林,其次可选择侧柏五角枫混交林和侧柏臭椿混交林,应尽量避免大面积营造侧柏黄连木混交林及侧柏纯林。In order to select the appropriate coniferous and broadleaved mixed forest in the limestone mountains in central south of Shandong province, this study selected 5 kinds of 10-year-old coniferous and broadleaved mixed forests in Pashishan small watershed as the research objects, which was located in Xintai city, Shandong province, and analyzed the litter mass, soil physical and chemical properties, soil infiltration rate and soil hydrology effect by using the methods of field investigation and laboratory analysis. The improvement of soil physical and chemical properties and soil hydrological effects under different modes of coniferous and broadleaved mixed forests was investigated. The results showed that all indicators we measured were significantly different in 5 types of mixed forests, which were better than those in Platycladus orientalis pure forest. Among all mixed forest types, Platycladus orientalis ＋ Robinia pseudoacacia mixed forest showed the best promotion effect on all the indicators, while Platycladus orientalis ＋ Pistacia chinensis showed the worst effect. Improvement effects of 5 types of mixed forests on physicochemical properties and hydrological effects of forest soil followed the sequence of Platycladus orientalis ＋Robinia pseudoacacia P lat ycladus orientalis ＋ Melia azedarace 〉 P lat ycladus orientalis ＋ Ac errnono maxin 〉 P at ycladus orientalis ＋Ailanthus altissima 〉 Platycladus orientalis ＋ Pistacia chinensis. Therefore, when we plan to build the coniferous and broadleaved mixed forest in the limestone mountains in central south of Shandong province, Platycladus orientalis 4- Robinia pseudoacacia mixed forest and Platycladus orientalis ＋ Melia azedarace mixed forest should be the best choice, and Platycladus orientalis ＋Acerrnono maxin and Platycladus orientalis ＋ Ailanthus altissirna are also suitable, but a large area of Platycladus orientalis ＋Pistacia chinensis forest and Platycladus orientalis forest in the limestone mountains should be avoided.

关 键 词：石灰岩山地 针阔混交林 土壤理化性状 土壤水文效应 

分 类 号：S714.7[农业科学—林学]