首页 | 本刊简介 | 编委会 | 投稿征稿 | 期刊订阅 | 下载中心 | English
 
   
  论文快速检索

请输入关键词

 

 

   
  信息公告
海外撷英栏目开通,欢迎投稿

热带亚热带植物学报网络开通

访问总次数
14384822
今日访问
6352
当前在线
0人
 
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 3529次   下载 1677 本文二维码信息
码上扫一扫!
分享到: 微信 更多
冰雪灾害对粤北天然次生林的损害及产生的林冠残体量
骆土寿1, 杨昌腾2, 吴仲民1, 肖荣高2, 周志平3, 张娜1, 翁启杰1, 肖以华1
1.中国林业科学研究院热带林业研究所;2.广东南岭国家级自然保护区大顶山管理处;3.广东车八岭国家级自然保护区
摘要:  采用样地调查和取样,研究了2008年初中国南方冰雪灾害对粤北天然次生林的损害特征及其产生的林冠残体量。结果表明, 灾害对粤北天然林造成严重损害,林木受害特征主要是胸径较大的植株断枝、断梢和断干较多,胸径较小的容易压弯,坡度大的林分翻蔸受害率增加。灾后林地林冠残体总量为38.12~43.52 t hm-2,平均41.25 t hm-2;地表凋落叶11.79~12.87 t hm-2,平均12.47 t hm-2;灾害产生的枝、干木质残体量为24.27~30.65 t hm-2,平均28.41 t hm-2。天然常绿阔叶林产生的林冠残体量较常绿与落叶混交林和杉木人工林大,造成林地林冠残体量骤增,一方面使林地存在严重安全隐患(如发生火灾和病虫害的风险增加),另一方面大量的林冠残体归还林地、改变了森林生态系统的结构与功能。
关键词:  冰雪灾害  天然次生林  林冠残体量  粤北
DOI:10.3969/j.issn.1005-3395.2010.3.2410
分类号:
基金项目:国家自然科学基金项目(30870417);“十一五”国家科技支撑计划项目(2006BAD03A0402);尖峰岭森林生态站和中国林科院南岭森林生态系统定位研究站的研究内容之一
Damage of the Frozen Rain and Snow to Natural Secondary Forests and Its Crown Debris in Northern Guangdong Province
LUO Tu-shou1, YANG Chang-teng2, WU Zhong-min1, XIAO Rong-gao2, ZHOU Zhi-ping3, ZHANG Na1, WENG Qi-jie1, XIAO Yi-hua1
1.Research Institute of Tropical Forest, Chinese Academy of Forestry (CAF);2.Dadingshan Administration of Nanling National Nature Reserve in Guangdong;3.Chebaling National Nature Reserve in Guangdong
Abstract:  Southern China suffered one of the most destructive frozen rain and snow ever since 1954, from the middle of January to early February in 2008. The damage status and crown debris amounts of natural secondary forests of Chebaling Nature Reserve and Tianjingshan Station of Nanling National Nature Reserve in northern Guangdong Province, were investigated after the disaster. The results showed that the natural secondary forests were damaged heavily, with the broken of branch, top and stem of the big trees, and stem bent of the smaller trees commonly. The proportions of uproot trees were increased with slope degree increasing. The total standing crop of crown debris in forests ranged from 38.12 to 43.52 t hm-2 with an average of 41.25 t hm-2. The leaf litter varied from 11.79 to 12.87 t hm-2 with an average of 12.47 t hm-2. The total amounts of woody debris of branch and trunk by the disaster varied from 24.27 to 30.65 t hm-2 with an average of 28.41 t hm-2. The crown debris of natural evergreen broadleaved forest caused by the disaster were significantly more than that of the evergreen and deciduous broadleaved mixed forest and Chinese fir plantation. The disaster increased litterfall debris in short period, which will not only increase dangers of fires, pests and diseases, but also change the structure and function of the forest ecosystem.
Key words:  Frozen rain and snow disaster  Natural secondary forest  Amounts of crown debris  Northern Guangdong Province

Copyright 2007 版权所有 中国科学院华南植物园《热带亚热带植物学报》编辑部
地址: 广州市天河区兴科路723号 中国科学院华南植物园 《热带亚热带植物学报》编辑部 邮编:510650 电话: 86 (0)20-3725 2514  传真:86 (0)20-3725 2642 E-mail: jtsb@scib.ac.cn
本系统由北京勤云科技发展有限公司设计
京ICP备09084417号-2