农业科学与技术(英文版)
農業科學與技術(英文版)
농업과학여기술(영문판)
AGRICULTURAL SCIENCE & TECHNOLOGY
2010年
7期
113-116
,共4页
朱宏光%孙冬婧%赵金龙%李燕群%韦洁%林建勇%王磊%郑羡%阳永泉%温远光
硃宏光%孫鼕婧%趙金龍%李燕群%韋潔%林建勇%王磊%鄭羨%暘永泉%溫遠光
주굉광%손동청%조금룡%리연군%위길%림건용%왕뢰%정이%양영천%온원광
冰冻灾害%大明山%云贵山茉莉
冰凍災害%大明山%雲貴山茉莉
빙동재해%대명산%운귀산말리
Froze damaged%Damingshan%Huodendron biaristatum
[目的]为研究亚热带森林对冰冻灾害的抵御能力、监测灾后云贵山茉莉种群的恢复和演替提供理论依据.[方法]从种群生态学角度评估了 2008年初的冰冻灾害对大明山中山区常绿阔叶林优势树种云贵山茉莉种群的影响.[结果]样地内胸径≥1 cm的云贵山茉莉植株共1090株,其中697株受灾,占总株数的63.9%;受灾植株中以冠损的数量最多,占37.6%,被压弯株数次之,占13.0%,折干占10.2%,掘根的个体数最少,仪占3.1%.统计检验结果显示,林木受灾类型和程度仔在显著的径级、树高级、冠幅和尖削度差异;冠损率和受灾率随着林木胸径的增大而增大,压弯率则随胸径的增大而减小;受灾率、压弯率和折干率随着高度级的增加而缓慢下降,冠损率则表现为正态分布;林木冠幅级越高受灾率和冠损率越高,折干率随着冠幅级的增大而减少;尖削度大的植株更易发生冠损、压弯、折干和掘根.[结论]云贵山莱莉种群对冰冻灾害的抵御能力受到多种因素如胸径、树高、冠幅、尖削度等的影响.在这些因素的作用下,大明山云贵山茉莉种群表现出以机械损害为主的各种受灾类型,直接被冻死的植株极少.
[目的]為研究亞熱帶森林對冰凍災害的牴禦能力、鑑測災後雲貴山茉莉種群的恢複和縯替提供理論依據.[方法]從種群生態學角度評估瞭 2008年初的冰凍災害對大明山中山區常綠闊葉林優勢樹種雲貴山茉莉種群的影響.[結果]樣地內胸徑≥1 cm的雲貴山茉莉植株共1090株,其中697株受災,佔總株數的63.9%;受災植株中以冠損的數量最多,佔37.6%,被壓彎株數次之,佔13.0%,摺榦佔10.2%,掘根的箇體數最少,儀佔3.1%.統計檢驗結果顯示,林木受災類型和程度仔在顯著的徑級、樹高級、冠幅和尖削度差異;冠損率和受災率隨著林木胸徑的增大而增大,壓彎率則隨胸徑的增大而減小;受災率、壓彎率和摺榦率隨著高度級的增加而緩慢下降,冠損率則錶現為正態分佈;林木冠幅級越高受災率和冠損率越高,摺榦率隨著冠幅級的增大而減少;尖削度大的植株更易髮生冠損、壓彎、摺榦和掘根.[結論]雲貴山萊莉種群對冰凍災害的牴禦能力受到多種因素如胸徑、樹高、冠幅、尖削度等的影響.在這些因素的作用下,大明山雲貴山茉莉種群錶現齣以機械損害為主的各種受災類型,直接被凍死的植株極少.
[목적]위연구아열대삼림대빙동재해적저어능력、감측재후운귀산말리충군적회복화연체제공이론의거.[방법]종충군생태학각도평고료 2008년초적빙동재해대대명산중산구상록활협림우세수충운귀산말리충군적영향.[결과]양지내흉경≥1 cm적운귀산말리식주공1090주,기중697주수재,점총주수적63.9%;수재식주중이관손적수량최다,점37.6%,피압만주수차지,점13.0%,절간점10.2%,굴근적개체수최소,의점3.1%.통계검험결과현시,림목수재류형화정도자재현저적경급、수고급、관폭화첨삭도차이;관손솔화수재솔수착림목흉경적증대이증대,압만솔칙수흉경적증대이감소;수재솔、압만솔화절간솔수착고도급적증가이완만하강,관손솔칙표현위정태분포;림목관폭급월고수재솔화관손솔월고,절간솔수착관폭급적증대이감소;첨삭도대적식주경역발생관손、압만、절간화굴근.[결론]운귀산래리충군대빙동재해적저어능력수도다충인소여흉경、수고、관폭、첨삭도등적영향.재저사인소적작용하,대명산운귀산말리충군표현출이궤계손해위주적각충수재류형,직접피동사적식주겁소.
[Objective]The aim was to provide a reference for studying the resistant ability of subtropical forest to freeze disaster and detecting the recovery and evolution of Huodendron biaristatum species after freeze disaster.[Method]Effects of the damage caused by the southern ice storm in early 2008 on Huodendron biadstatum,dominant species of evergreen broad-leaved forest on the Damingshan,were studied in the aspect of population ecology.[Result]Among the 1090 Huodendron biaristatum individuals(DBH ≥ 1 cm),697 individuals were victims,accounting for 63.9%.The largest part of the victims was crown breakdown,which took up 37.6%.13.0% of the victims were bent,and 10.2%of the victims were trunk broken.The least part of the victims were uprooted,accounting for only 3.1%.Different types and extent of forestry damage had remarkable differences in diameter class,tree height,crown and taper.Rates of damage and crown breakdown increased with the increase of DBH,while bent rate decreased.Rates of damage,bent and trunk broken declined slowly with the increase of tree height,while crown breakdown rate followed the normal distribution.As the crown level increased,rates of damage and crown breakdown increased,while the rate of trunk broken decreased.Individuals with high taper were more susceptible to crown damage,bending,breaking and uprooted.[Conclusion]The resistant ability of Huodendron biaristatum species to freeze disaster is affected by many factors like DBH,tree height,crown,taper,etc..Huodendron biafistatum species in Damingshan affected by those factors show various kinds of damaged types dominant by mechanical damage,but there is few individual to die.