毛乌素沙地中国沙棘无性系生长调节

应用生态学报 ›› 2001, Vol. ›› Issue (5): 682-686.

毛乌素沙地中国沙棘无性系生长调节

李根前¹, 黄宝龙², 唐德瑞³, 赵一庆³, 王迪海³

1. 西南林学院资源学院, 昆明 650224;
2. 南京林业大学森林资源与环境学院, 南京 210037;
3. 西北农林科技大学, 杨凌 712100

收稿日期:1999-12-29 修回日期:2001-05-11 出版日期:2001-09-25
通讯作者: 李根前,男,1961年生,博士,副研究员,主要从事森林培育和森林生态学研究,发表相关论文20余篇.E-mail:Lgenqian@public.km.yn.cn
基金资助:
国家"九五”科技攻关项目(96-007-01-01-04).

Regulation of clonal growth of Hippophae rhamnoides L subsp inensis population in Mu Us sandland

LI Genqian¹, HUANG Baolong²

1. Resource Department, Southwest Forestry College, Kunming 650224;
2. College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037

Received:1999-12-29 Revised:2001-05-11 Online:2001-09-25

摘要/Abstract

摘要： 根据无性系跟踪挖掘资料,分析了毛乌素沙地中国沙棘无性系生长调节规律.结果表明,无性系分株群(同一无性系所有分株的集合)结构由增长型发展到稳定型,最后演变成衰退型.在衰退过程中或其后的一段时间内,无性系能够通过分株出生调节使分株群结构(年龄和高度级)恢复到稳定型.在分株群结构变化的同时,种群通过分株的死亡调节不断改变着分株的克隆生长型,提高了无性系种群的持久性以及对空间和资源的利用率.

Abstract: On the basis of investigation of tracking excavation of clones, the regulation of clonal growth of Hippophae rhamnoides L. subsp sinensis population in Mu Us sandland were analyzed. The results indicated that the structure of ramet group (ramets within a clone) was characterized by a transformation from an incr easing type to a stable type, then to a decreasing type. During the decreasing p rocess, the clones could recover its stable structure by regulating ramet birth rate. In the meantime of structure change of ramet group, the population changed the clonal growth form by the regulation of ramet mortality, which increased th e enduring of clone population and its utilization efficiency to space and resou rces as well.

中图分类号:

S793.602

李根前, 黄宝龙, 唐德瑞, 赵一庆, 王迪海. 毛乌素沙地中国沙棘无性系生长调节[J]. 应用生态学报, 2001, (5): 682-686.

LI Genqian, HUANG Baolong. Regulation of clonal growth of Hippophae rhamnoides L subsp inensis population in Mu Us sandland[J]. Chinese Journal of Applied Ecology, 2001, (5): 682-686.