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时间:2020-06-05
《道路建设对太白山国家森林公园植物多样性的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第4O卷第3期西北农林科技大学学报(自然科学版)Vo1.40No.32012年3月JournalofNorthwestA&FUniversity(Nat.Sci.Ed.)Mar.2012DOI:CNKI:611390/8.20120223.1724.015网络出版时间:2012—02—2317:24网络出版地址:http:/www.cnki.net/kcms/detai1/61.1390.S.20120223.1724.015.html道路建设对太白山国家森林公园植物多样性的影响张昌贵h,李景侠,方大凤(1杨凌职业技术学院a旅游与管理系,b生态环境工程系,
2、陕西杨凌712100;2西北农林科技大学林学院,陕西杨凌712100)[摘要]【目的】明晰道路建设对太白山国家森林公园植物多样性的影响程度,为植物多样性及植被的恢复提供依据。【方法】以公园红桦坪到下板寺之间道路两侧的植被为研究对象,运用典型样地法,在道路的边缘设置干扰样地3块,分别在3块干扰样地同侧水平距离5Om或近无人干扰处设置对照样地3块,样地面积为2Om×20m,在每块样地中又各设5个5m×5in的灌木样方和5个1in×1in的草本样方,对干扰样地和对照样地的植物群落进行对比调查,从物种组成、重要值、a多样性指数和相似性4方面进行统计与分析【结果】与
3、对照样地相比,干扰样地中总体物种数量仅少1种,为57种;乔木、灌木、草本中各物种的组成差异较大,有些物种在干扰样地中消失,但又有新的物种侵入;各物种的重要值变化无明显规律;物种多样性指数稍降低,其中乔木物种的多样性指数明显降低但不显著(P4、多样性[中图分类号]s759.91;Q948.123[文献标识码]A[文章编号]1671—9387(2012)03—0056—09Impactsofroadconstruction013plantdiversityinTaibaiMountainNationaIForestParkZHANGChang—guih,LIJing—xia,FANGDa-feng(1aDepartmentofTourismandManagement,bDepartmentofEcologicalandEnvironmentalEngineering,YanglingVocatio5、nal&TechnicalCollege,Yangling,Shaanxi712100,China2CollegeofForestry,NorthwestA&FUniversity,Yangling,Shaanxi712100,China)Abstract:[ObjectivelTheresearchisconductedtohaveaclearunderstandingoftheimpactsofroadconstructiononplantdiversityinTaibaiMountainNationalForestParkandprovidebasi6、sfortherestorationofplantdiversityandvegetation.[Method]ThisstudyemploysthemethodofspecialquadratstocarryoutcomparativeresearchontheplantgroupsalongtheroadfromXiabanTempletoHonghuaLevelGroundinTaibaiMountainNationalForestpark.Threedisturbedquadratsaresetattheedgeoftheroadandthreec7、ontrolquadratsaresetatthesamesideofthedisturbedquadrats,withahorizontaldistanceof50morscarcelynohumandisturbance,theareaofquadratis20m×20m.Ineachquadrat,5shrubsamplesinthesizeof5m×5mand5herbsamplesinthesizeof1m×1maresettoanalyzetheplantgroupsinthedisturbedquadratsandcontrolquadrat8、sfromsuchaspectsascompositionofsp
4、多样性[中图分类号]s759.91;Q948.123[文献标识码]A[文章编号]1671—9387(2012)03—0056—09Impactsofroadconstruction013plantdiversityinTaibaiMountainNationaIForestParkZHANGChang—guih,LIJing—xia,FANGDa-feng(1aDepartmentofTourismandManagement,bDepartmentofEcologicalandEnvironmentalEngineering,YanglingVocatio
5、nal&TechnicalCollege,Yangling,Shaanxi712100,China2CollegeofForestry,NorthwestA&FUniversity,Yangling,Shaanxi712100,China)Abstract:[ObjectivelTheresearchisconductedtohaveaclearunderstandingoftheimpactsofroadconstructiononplantdiversityinTaibaiMountainNationalForestParkandprovidebasi
6、sfortherestorationofplantdiversityandvegetation.[Method]ThisstudyemploysthemethodofspecialquadratstocarryoutcomparativeresearchontheplantgroupsalongtheroadfromXiabanTempletoHonghuaLevelGroundinTaibaiMountainNationalForestpark.Threedisturbedquadratsaresetattheedgeoftheroadandthreec
7、ontrolquadratsaresetatthesamesideofthedisturbedquadrats,withahorizontaldistanceof50morscarcelynohumandisturbance,theareaofquadratis20m×20m.Ineachquadrat,5shrubsamplesinthesizeof5m×5mand5herbsamplesinthesizeof1m×1maresettoanalyzetheplantgroupsinthedisturbedquadratsandcontrolquadrat
8、sfromsuchaspectsascompositionofsp
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