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作 者:龚粤宁 陈仁利[2] 王胜坤[2] 谢国光 顾茂彬[2]
机构地区:[1]广东南岭国家级自然护区管理局,广东乳源512727 [2]中国林业科学研究院热带林业研究所,广东广州510520
出 处:《广东林业科技》2014年第3期66-69,共4页Forestry Science and Technology of Guangdong Province
基 金:中国林业科学研究院南岭森林生态系统定位研究站和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资金项目"冰冻雨雪灾害对南岭地区昆虫多样性的影响研究"(2008-08);中国林业科学研究院基本科研业务项目(CAFYB2011004-4)
摘 要:2008年1-2月南岭遭遇百年一遏的特大雨雪冰冻灾害,给森林生态系统造成了极大的破坏,使南岭国家级自然保护区位于南岭林区海拔500~600m的树木园内林木折断、倒伏及包括昆虫在内的野生动物大量死亡,其中眼蝶科灾后(2008年)种数比灾前2年(2006-2007年)的平均值降低50%、个数降低67.12%。灾后采取及时清理枯落物等恢复措施,有利于地面新生植物的萌生、预防森林火灾和可能引发的次生病虫害。经过5a的恢复期,林分及其生物多样性同步获得恢复。冰灾后形成的林窗萌生各种植物后,改善了林分结构,使森林生态系统得到修复和重建,也使植物种类比冰灾前更为丰富,生长势旺盛;眼蝶科种数比冰灾当年增加62.5%,个数比冰灾当年增加266.67%。可见,虽然冰冻灾害对森林生态系统产生严重影响,只要恢复措施得当,灾后的生态系统会逐渐优化。In early 2008, a massive ice storm struck Nanling region, which heavily damaged forest ecosys- tems of this area. As a result, a large number woody plants broke off and fell over, a lot of wildlife including insects were killed in arboretum, located in the Nanling Forest. After the disaster, the species of Satyridae fell 50% and the individual reduced 67.12% than those in 2006--2007. It is an important restoration measures through cleaning up litter, which was benefit to initiation of plant and prevention of forest fire and secondary disease. After 5 years of recovery, forest ecosystems and biodiversity have restored. The species of Satyridae and the individual increased in 62.5% and 266.67% than those in 2008 respectively. The results showed that although ice disaster caused a great damage to forest ecosystem, as long as measures were appropriate, forest ecosystem would be optimized.
分 类 号:S186[农业科学—农业基础科学]
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