[1]刘宪钊,张静伟.渭北地区水土保持林经营现状及分析[J].水土保持研究,2013,20(03):257-262.
　LIU Xian-zhao,ZHANG Jing-wei.The Present Management Situation and Analysis of Soil and Water Conservation Forest in Weibei Region[J].Research of Soil and Water Conservation,2013,20(03):257-262.
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渭北地区水土保持林经营现状及分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年03期 页码: 257-262 栏目: 出版日期: 2013-06-28
Title:
The Present Management Situation and Analysis of Soil and Water Conservation Forest in Weibei Region
作者:
刘宪钊1,2, 张静伟3
1. 北京林业大学 林学院, 北京 100083;
2. 中国林科院资源信息所, 北京 100091;
3. 化龙山国家级自然保护区管理局, 陕西 安康 725600
Author(s):
LIU Xian-zhao1,2, ZHANG Jing-wei3
1. College of Forestry, Beijing Forestry University, Beijing 100083, China;
2. Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China;
3. Administration of National Nature Reserve of Hualongshan, Ankang, Shaanxi 725600, China
关键词:
水土保持林; 水土流失; 二阶段抽样; 可持续经营
Keywords:
soil and water conservation forest; soil loss; two-stage sampling; sustainable management
分类号:
S727.22
摘要:
采用二阶段抽样法，选取林木生长、多样性、土壤、地形等指标对渭北水土保持林进行调查和统计分析。结果显示：该地区水土保持林资源分布不均，整体上表现为西多东少，北多南少的分布格局；虽然防护林还没有进入更新期，但是已有大量近熟林在高生长和径生长上表现出明显的衰退迹象；树种结构的单一、灌木层的缺乏使得林分整体多样性不高，林下更新不足，严重地影响了森林的自我更新和复制；通过偏相关分析得出，郁闭度、密度、枯落物等因子的协作用对防护林土壤表层（40 cm）持水能力的影响显著大于每个因子自身的作用。以上结果表明，该地区水土保持林在结构、生长和更新中存在着许多问题，必须通过合理的经营设计改变这一现状，以实现该地区水土保持林的可持续经营。
Abstract:
The two-stage sampling method was used, the indices of tree growth, diversity, soil relief and expansion index were set up following the ecological benefit assessment scheme and surveyed to study the situation of soil and conservation forest in Weibei region. The results show that the distribution of soil and water conservation forest in this region is imbalanced there are more forests in the west and north than the eastern and southern part of this region. The shelter forest has not yet entered a regeneration period, yet many near-mature forests have the decline appearance on the growth of tree DBH and height. Simple forest structure and shrub layer caused the lower forest diversity. The lack of regeneration blocks the renewable and duplicate of the forest. Moreover, the result of partial correlation shows that the crown density, number of tree, litter and so on have the synthetic action on the soil water holding capacity. All the results show that there are many problems (structure, growth and regeneration) in the soil and water conservation forest. In order to change this situation and realize the target of sustainability, a reasonable forest management design should be carried out.

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备注/Memo

收稿日期:2012-09-25;改回日期:2012-12-04。
基金项目:国家林业局公益性行业专项（201004002）；博士后科学基金（2012M510331）
作者简介:刘宪钊(1981-),男,河北沧州人,博士后,主要研究方向为可持续森林经营。E-mail:lxz9179@caf.ac.cn
通讯作者:张静伟(1981-),男,河北保定人,硕士,工程师,主要从事保护区管理研究。E-mail:dwin820@foxmail.com

更新日期/Last Update: 1900-01-01