[1]李苗,李凯荣,杨晓毅,等.淳化县人工油松林林分结构及林下植物多样性研究[J].水土保持研究,2010,17(06):142-147.
　LI Miao,LI Kai-rong,YANG Xiao-yi,et al.Study on Structure and Plant Diversity of Pinus Tabulaeformis Stands in Chunhua County[J].Research of Soil and Water Conservation,2010,17(06):142-147.
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淳化县人工油松林林分结构及林下植物多样性研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年06期 页码: 142-147 栏目: 出版日期: 2010-12-20
Title:
Study on Structure and Plant Diversity of Pinus Tabulaeformis Stands in Chunhua County
作者:
李苗1, 李凯荣2, 杨晓毅1, 刘雪凤1
1. 西北农林科技大学 林学院, 陕西 杨陵 712100;
2. 西北农林科技大学 资源环境学院, 陕西 杨陵 712100
Author(s):
LI Miao1, LI Kai-rong2, YANG Xiao-yi1, LIU Xue-feng1
1. College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
关键词:
油松; 径阶分布; 树高分布; 多样性
Keywords:
Pinus tabulaeformis; breast diameter distribution; tree height distribution; diversity
分类号:
S791.253;Q948.1
摘要:
通过对油松林分结构和林下植物的调查，获得林分和林下植物的各种信息，总结林分结构和林下植物分布规律，为油松林的经营管理提供依据。采用标准样地调查的方法，研究和分析了不同密度和立地条件下的油松林分结构及林下植物多样性。结果表明：密度为2475株/hm2的中龄油松林平均直径较大而且径阶分布接近正态分布；密度较小的成熟林径阶分布负偏，密度较大的径阶分布正偏。较小的林分密度有利于油松胸径生长，较大的林分密度能促进树高生长。中龄林下的物种多样性多于成熟林。林分密度大不利于林下植物生长。
Abstract:
According to the investigation of the structure and plant diversity of Pinus tabulaeformis stands, we got information on them and then summarized some basic rules which could promote the forest management. On the base of sample investigation in standard plots in the Chunhua county on the Loess Plateau, different density and site conditions of Pinus tabulaeformis stand and undergrowth plant diversity were compared and analyzed. The results showed that in the density of 2475 trees/hm2 of half-mature forest, the average diameter was larger and the diameter distribution was close to normal distribution; the diameter distribution was negatively skewed in the smaller density of mature forest and positively skewed in the larger ones. The small density of forest stand was useful for the Pinus tabulaeformis’ diameter growth and the large could promote the height growth. The diversity of species in half-mature forest was more than mature ones. The large stand density was not good for the growth of the understory plant.

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备注/Memo

收稿日期:2010-2-2
基金项目:国家科技支撑计划项目（2006BAD03A0205）
作者简介:李苗（1986- ），女，陕西泾阳县人，硕士，主要从事森林生态学研究。E-mail：limei19861212@126.com
通讯作者:李凯荣（1955- ），男，陕西扶风县人，教授，主要从事生态工程和水土保持研究。E-mail：lkr.888@163.com

更新日期/Last Update: 1900-01-01