CAJ | 학술논문

2008年3～4月,在仙居县4个乡镇2个国有林场设置了44块标准地对林木受雨雪冰冻灾害情况进行调查,结果认为:在海拔500 m以上,雨雪冰冻造成林木腰折、翻蔸与海拔高程无显著相关,杉类、松类、阔叶类各树种间出现腰折、翻蔸有显著差异;腰折、翻蔸木胸高断面积损失率为松木＞阔叶树＞杉木,断梢木胸高断面积受害率为杉木＞阔叶树＞松木,折枝木胸高断面积受害率为阔叶树＞松木＞杉木,正常林木胸高断面积保存率为杉木＞松木及阔叶树.土层浅薄处林木多出现翻蔸,土层深厚处林木多出现腰折.雨雪冰冻对不同坡向、坡位的林木危害无显著差异,但由于微地形条件,不同地块的林木受害程度差异较大.
2008년3～4월,재선거현4개향진2개국유림장설치료44괴표준지대림목수우설빙동재해정황진행조사,결과인위:재해발500 m이상,우설빙동조성림목요절、번두여해발고정무현저상관,삼류、송류、활협류각수충간출현요절、번두유현저차이;요절、번두목흉고단면적손실솔위송목＞활협수＞삼목,단소목흉고단면적수해솔위삼목＞활협수＞송목,절지목흉고단면적수해솔위활협수＞송목＞삼목,정상림목흉고단면적보존솔위삼목＞송목급활협수.토층천박처림목다출현번두,토층심후처림목다출현요절.우설빙동대불동파향、파위적림목위해무현저차이,단유우미지형조건,불동지괴적림목수해정도차이교대.
The damage of frozen rain and snow on forests of Xianju county was investigated by setting 44 sample plots in 2 state- owned forest farms located in 4 towns. It was found that in the areas of altitude higher than 500 m, the stem broken and whole tree fell down were not significantly related with altitude. The stem broken and whole tree fell down of China fir, pine and broadleaved trees were significantly different. The loss rate of stem broken, whole tree fell down and basal diameter of the studied forest trees was pine＞broadleaved tree species＞China fir. The basal area loss rate of top broken trees was China fir＞broadleaved tree species＞pine. The basal area loss rate of twig broken trees was broadleaved tree species＞pine＞China fir. The preservation rate of basal area of undamaged trees was China fir＞pine＞broadleaved tree species. Whole tree fell down is usually occurred in site with shallow soil layer. Stem broken is the common damage in site with thick soil layer. There is no significant difference between the damage on trees distributed in different slopes and aspects, however, due to the concrete topographic conditions, the damages of trees at different sites were significantly different.