文献类型：期刊文献

中文题名：冰雪灾害对杨东山十二度水自然保护区木本植物机械损伤的初步调查

英文题名：Mechanical Damages to Woody Plants from a Snow Disaster in Yangdongshan Shierdushui Provincial Nature Reserve

作者：赵霞[1] 沈孝清[2] 黄世能[1] 罗鑫华[2] 骆土寿[1] 曾繁助[3] 张娜[1,2] 余伟盛[3] 肖以华[1] 王旭[1]

第一作者：赵霞

机构：[1]中国林业科学研究院热带林业研究所,广州510520;[2]广东乐昌杨东山十二度水省级自然保护区,乐昌512200;[3]广东乐昌大瑶山省级自然保护区,乐昌512200

年份：2008

卷号：44

期号：11

起止页码：164-167

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：中国林业科学研究院南岭冰雪灾害受损森林生态系统定位研究站、中国林业科学研究院热带林业研究所基本科研业务费专项课题“热带林发展战略研究”的内容之一

语种：中文

中文关键词：冰雪灾害;杨东山十二度水省级自然保护区;木本植物;机械损伤

外文关键词：snow disaster;Yangdongshan Shierdushui Provincial Nature Reserve;woody plants;mechanical damage

分类号：S761

摘要：在广东乐昌杨东山十二度水省级自然保护区海拔700～1000m的植被群落中设置4个固定样地,研究雨雪冰冻灾害对其木本植物的机械损伤情况,结果表明:1)冰雪灾害对木本植物的机械损伤包括断梢、压弯、断干、翻蔸、倒伏等类型,其中压弯占的比例最高,超过总株数的50%;2)胸径≤3.0cm的林木受危害株数最多,其次是3.1～5.0cm,7.1～9.0cm的株数最少;平均胸径≤5.0cm的林木,主要危害表现为压弯,其他危害类型的平均胸径大多超过5.1cm;3)树高≤5.0m的林木受害较多,翻蔸的平均树高在5.0m以上,5.0m以下的大多是压弯和倒伏,断梢和断干的高度一般在3.1～5.0m之间。
The mechanical damages to woody plants in Yangdongshan Shierdushui Provincial Nature Reserve,Lechang of Guangdong Province resulting from a snow disaster were investigated by sampling four 50 m×30 m plots located from 700 m to 1 000 m of elevation.in Shierdushui area of the reserve.The results showed that the woody plants suffered from five modes of damages：top breakage,stem bending,trunk breakage,uprooting and lodging.Stem bending was the prevailing mode of damage with an average of over 50% of damaged plants recorded in the four plots.The highest proportion of damaged plants in regard to DBH was recorded in the ≤3.0 cm DBH class,followed by the 3.1～5.0 cm DBH class,while the lowest found in the 7.1-9.0 cm DBH class.The mode of stem bending was mostly found in woody plants with mean DBH≤5.0 cm,while the other modes of damages were recorded in plants with mean DBH exceeding 5.1 cm.The woody plants with heights ≤5.0 m exhibited the most serious damage.In regard to the mode of damages,uprooting mostly occurred in plants with a mean height 〈5.0 m and stem bending and lodging in plants with a mean height less than 5.0 m.The mean height of top and trunk broken plants was from 3.1 m to 5.0 m.