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当前位置: 首页 > 文章 > 退耕还林不同整地方式油松林地鼢鼠种群动态研究 西北林学院学报 2010,25 (4) 120-126
Position: Home > Articles > Population Dynamics of Zokor in Chinese Pine Forests with Different Site Preparations in Grain for Green Project Areas Journal of Northwest Forestry University 2010,25 (4) 120-126

退耕还林不同整地方式油松林地鼢鼠种群动态研究

作  者：
韩崇选;张放;李惠萍;杨清娥
单  位：
西北农林科技大学林学院
关键词：
黄土高原;退耕还林;整地方式;鼢鼠;种群动态
摘  要：
研究结果证明,整地造林初期,鼢鼠密度有一个上升过程,从反坡梯田到穴状整地,上升幅度递降,持续时间渐短。造林后,反坡梯田和水平沟的鼢鼠密度明显高于初期值,水平阶和水平带状的整体高于初始值,鱼鳞坑和穴状整地的整体小于初始值。带状整地造林后2～5 a,鼢鼠种群增长率大于零,极值出现以后,增长率随着林木的生长迅速降低,5 a以后,种群出现负增长。鱼鳞坑和穴状整地,增长率第2年最大,3 a以后,种群出现负增长。从反坡梯田到穴状整地,鼢鼠密度的时间正效应逐步转化成负效应,环境异质效应逐渐显现。
译  名：
Population Dynamics of Zokor in Chinese Pine Forests with Different Site Preparations in Grain for Green Project Areas
作  者：
HAN Chong-xuan,ZHANG Fang,LI Hui-ping,YANG Qing-e (College of Forestry Northwest A&F University,Yangling,Shaanxi 712100,China)
关键词：
Loess Plateau;;conversion of farmland to forest;;land preparation;;zokor;;dynamic population
摘  要：
Population dynamics of zokor occurred in artificial Chinese pine forests with different land preparation methods were investigated.In the initial phase of afforestation,zokor density was in rising process. From adverse slope terrace to holes preparation,the rising amplitude descend step by step,and the rising duration became short.After afforestation,in the preparations of adverse slope terrace and horizontal ditch,zokor densities increased significantly compared with initial stage,preparations of level bench and belt terrace however,the densities increased somhow from initial density,in listing basin and holes,the densities decreased from initial stage.2 to 5 years after afforestation,in belt preparation site,the rate of population increase was more than zero,after emergence of maximal value,the increasing rate rapidly reduced with forest growth,and after 5 years,the population came into negative increase.In listing basin and holes preparations,the rate of population increase in the second year was in its maximum,and negative increase appeared in the third year.From adverse slope terrace to holes preparations,the time effect of zokor density transformed from positive to negative,the heterogeneity effect of environment was gradual emerging.

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