秦岭北坡栓皮栎种群动态的研究

应用生态学报 ›› 2003, Vol. ›› Issue (9): 1427-1432.

秦岭北坡栓皮栎种群动态的研究

张文辉¹, 卢志军², 李景侠², 刘国彬³

1. 天津师范大学, 天津 300074;
2. 西北农林科技大学, 杨陵 712100;
3. 中国科学院-水利部水土保持研究所, 杨凌 712100

收稿日期:2001-07-11 修回日期:2002-02-17
通讯作者: 张文辉,男,1955年生,博士,教授,博士生导师.主要从事植物分类、植物生态、生物多样性方面的教学、科研工作.版著作3部,发表论文70余篇.Tel:029-7082611,E-mail:zwhckh@public.xasn.cn.
基金资助:
中国科学院知识创新工程项目(KZCX1-06-2);陕西省科技攻关项目(2001-G21-21);西北农林科技大学重点基金资助项目

Population dynamics of Quercus variabilis on northern slope of Qinling Mountains

ZHANG Wenhui¹, LU Zhijun², LI Jingxia², LIU Guobin ³

1. Tianjin Normaf University, Tianjin 300074, China;
2. Northwest Sciece-Technology University of Agriculture and Forestry, Yangling 712100, China;
3. Institute of Soil and Water conservation, Chinese Academy of Scinces and Ministry of Water Resources, Yangling 712100, China

Received:2001-07-11 Revised:2002-02-17

摘要/Abstract

摘要： 对秦岭北坡栓皮栎种群动态进行了系统研究,分析了种群的年龄结构和分布格局,编制了静态生命表,绘制了存活曲线。结果表明,秦岭北坡栓皮标种群年龄结构属于进展型,幼龄个体多,中老龄个体少;种群在Ⅰ、Ⅱ龄级时死亡率最高,随着年龄增加,死亡率逐渐降低;到Ⅶ、Ⅷ龄级,由于生理衰老,死亡率回升;栓皮栎种群存活曲线属于DeeveyⅢ型;种群分布格局总体上的呈聚集型,随年龄增加,种群聚集强度降低,在高海拔地区,种群趋向随机分布。海拔800～1100m是栓皮栎种群较为适宜的生境。对于低海拔地区栓皮栎林要加强保护,减少人为干扰;中海拔地区应加强抚育管理和适时间伐,高海拔地区应加强目的树种的抚育。

关键词: 栓皮栎, 年龄结构, 分布格局, 生命表, 存活曲线

Abstract: Studies on the population dynamics, age structure, spatial distribution pattern, life table, and survival curve of Quercus variabilis showed that the Q.variabilis population on the northern slope of Qinling mountains was increasing.The number of young - aged individuals was larger, and that of middle-aged and old individuals was smaller.The life tables for different age classes showed that the mortality at age classes Iand IIwas the highest, and the mortality rate was decreased with increasing age.However, at age classes VIIand VIII, the mortality rose again for their decrepitude.The expected life span of age classes III, IVand Vwas higher, and decreased gradually with increasing age.The survival curves were the type of Deevey III, and the distribution pattern of population was aggregative as a whole.As the age increased, the intensity of aggregation decreased, and tended to a random distribution at higher elevations.Awise management should accelerate the recovery of Q.variabilis population and the enhancement of its productivity.The altitude 800～1100 m was the favorable habitat for Q.variabilis population.As for the Q.variabilis at lower altitude, its protection should be reinforced, and the disturbance from human beings should be reduced.Forest thinning and other fostering management at middle altitude should be given in time.The target trees at higher altitude should be fostered.

Key words: Quercus variabilis, Age structures, Distribution pattern, Life tables, Survival curve

中图分类号:

Q948.1

张文辉, 卢志军, 李景侠, 刘国彬. 秦岭北坡栓皮栎种群动态的研究[J]. 应用生态学报, 2003, (9): 1427-1432.

ZHANG Wenhui, LU Zhijun, LI Jingxia, LIU Guobin . Population dynamics of Quercus variabilis on northern slope of Qinling Mountains[J]. Chinese Journal of Applied Ecology, 2003, (9): 1427-1432.

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