海东地区油松混交林与纯林生态效应对比研究  

The Ecological Effects of Growth Between Pinus Talulaeformis Mixed and Hippophae Rhamnoides in Haidong Region

作　　者：董旭 赵串串[2] 辛文荣 张凤臣[3] 杨晓阳[4] 

机构地区：[1]青海省林业调查规划院,西宁810008 [2]陕西科技大学资源与环境学院,西安710021 [3]国家林业局西北林业调查规划设计院,西安710048 [4]西北大学生命科学学院,西安710069

出　　处：《水土保持研究》2009年第1期196-198,共3页Research of Soil and Water Conservation

基　　金：青海省林业局资助项目

摘　　要：基于油松与沙棘带状混交试验,以油松纯林为对照,研究了两类样地水土保持指标、土壤理化性质相关指标及林木生长情况变化。结果表明,油松沙棘混交林样地枯枝落叶厚度、总量、容水量分别比纯林提高了104.8%,90.8%,83.4%,油松沙棘混交林样地土壤有机质、全氮、通透速度分别比纯林提高了110.%,132.1%,66.7%;混交林能够有效改良土壤理化性质,提高土壤肥力,促进林木生长,提高林分的效益,减轻病虫害,增强水土保持能力。Based on the investigation of reconstructing mixed forests of Pinus talulaeformis and Hippophae rhamnoides, in comparison with pure Pinus tabulaeforrnis forests, the criteria and indicators of soil and water conservation, soil physical and chemical properties, and tree growth for two types of sample spot were studied. The results of study showed that the quantities, thickness and water conservation function of forest litters in mixed sampling plot were higher respectively 104.8%,90.8% ,83.4% than pure stands. Results also showed that organic matter content of soils, the contents of soil total nitrogen, soil permeability in mixed sampling plot were higher respectively 110%, 132. 1%, 66.7% than pure stands. The results also showed the mixed forest should be one of the most effective available methods to improve ecological benefits and the conservation of soil and water.

关 键 词：油松 沙棘 混交林 生态效应 

分 类 号：S718.553[农业科学—林学]