白云山自然保护区蝶类昆虫物种多样性研究

对湖南保靖县白云山自然保护区鳞翅目蝶类昆虫种类进行了初步调查,并运用Margalef指数(d)、Men-hinick指数(ds)、Shannon-Wiener信息多样指数(H’)和Pielou均匀度指数(J’)分析该地区蝶类昆虫的物种多样性。结果表明:白云山共发现蝶类昆虫8科37属51种。在种级水平上,种类由多到少依次是:蛱蝶科>凤蝶科=眼蝶科=弄蝶科>粉蝶科>灰蝶科>斑蝶科=喙蝶科。Menhinick物种丰富度指数最高的科为蛱蝶科(2.065),Menhinick物种丰富度指数最低的科为喙蝶科(0.378)。Margalef物种丰富度指数(8.797)、Shannon-Wiener多样性指数(2.912)和Pielou均匀度指数(8.640)在不同方面体现了白云山鳞翅目蝶类昆虫的多样性状况。     

云山国家森林公园蝶类昆虫多样性分析

采用路线调查法和标准地网捕法,对湖南云山蝶类(鳞翅目)物种调查与统计,运用Margalef指数、Menhinick指数、Shannon-Wiener指数和Pielou指数分析云山蝶类昆虫的物种多样性。结果表明:云山蝶类昆虫共计7科36属61种;种数由大到小的科依次为凤蝶科蛱蝶科弄蝶科粉蝶科眼蝶科灰蝶科环蝶科,属数由多到少的科依次为蛱蝶科弄蝶科凤蝶科粉蝶科灰蝶科=眼蝶科环蝶科。云山蝶类昆虫物种丰富度指数排序依次为凤蝶科眼蝶科蛱蝶科弄蝶科环蝶科粉蝶科灰蝶科,其中凤蝶科的物种丰富度指数最高,为2.500;灰蝶科的丰富度指数最低,为0.452。     

我国蝶类昆虫生物多样性研究进展

从遗传多样性、物种多样性、生态系统多样性和景观多样性四个层次分析了我国蝶类昆虫生物多样性研究进展;指出我国蝴蝶生物多样性研究主要集中在物种多样性研究上,少数涉及遗传多样性、生态系统多样性和景观多样性方面的研究报道;今后应加大蝴蝶多样性研究力度,特别是热点地区濒危蝴蝶多样性研究,从而为蝴蝶多样性保护提供依据。     

三峡库区蝶类物种多样性报告

本研究于2000—2003年对三峡库区蝶类进行了补充调查。结果表明已知三峡库区分布蝶类406种，隶属于12科；177属。     

秦岭南麓宁东段夏季蝶类物种多样性分析

为给秦岭南麓宁东段的生态保护提供数据支持,对该地区的夏季蝶类多样性进行调查.结果表明,该地区共有蝶类6科24属41种.物种多样性分析显示,该地区生态环境良好,蝶类资源丰富.其中,粉蝶科物种多样性、优势度和均匀度指数均比其他科高,表明粉蝶科种类丰富,优势种群突出;蛱蝶科物种丰富度最高,但物种多样性、优势度和均匀度指数与粉...     

松花湖自然保护区蝶类群落多样性研究

对吉林松花湖的蝶类资源进行调查,结果表明:松花湖蝶类隶属于7科46属85种,多样性指数为2.72,均匀度指数为0.58;优势类群为蛱蝶科、凤蝶科和粉蝶科,优势属7属,优势种5种。     

茂兰喀斯特森林蝶类群落多样性分析

从2000年到2001年，在茂兰喀斯特森林保护区内定点多次随机采集蝴蝶样品，经鉴定统计样品总个体数目N＝7695只，总种数S＝206种，作种相对多度图，用Fisher对数级数法拟合，计算Shannon-Wiener多样性指数和均匀性指数。     

云南大围山国家级自然保护区种子植物区系多样性特征

报道大围山种子植物区系的研究结果:大围山内现有野生维管植物238科1 121属3 299种,分别占全国维管植物总科、属、种数的65.38%、34.92%、12.15%.其中种子植物188科994属3 027种及变种,平均种密度高达19.69种·km-2,是全国植物物种多样性最丰富的自然保护区之一.区内种子植物的古老性、珍稀性、多样性和完整性极具代表性.其种子植物区系具有4个显著特征:1)种类组成丰富,属内种系相对贫乏,分化程度较弱;2)植物区系起源古老,古老的特有属丰富;3)大围山是多种区系成分的交汇地带,但热带分布的科占绝对优势;4)大围山植物区系与中南半岛特别是北部湾植物区系的联系紧密,同时与东亚植物区系亦有密切联系.     

泰山蝶类物种多样性及区系分析

通过样地法、Poolard路线样带法对山东泰山蝶类生物多样性的调查,共发现蝶类40种,隶属7科31属。新记录种一种：尖角黄粉蝶（Euremalaeta Boisduval）;国家二级保护种一种：冰清绢蝶（Parnassius glacialis Butler）。垂直分布情况随海拔高度的升高种类数呈下降趋势。区系分析表明,泰山蝶类以古北界、东洋界共有种为主。     

北回归线上的绿色明珠——大围山森林公园

坐落在云南省屏边县和河口县的大围山自然保护区,以植物的珍稀古老、完整多样而闻名于世,是我国大陆唯一分布有热带湿润雨林的地区,保存有最完整的热带森林垂直生态系统,是我国乃至世界生物多样性的关键地区,被誉为“北回归线上的绿色明珠”。就在这浩瀚的林海中掩映着一个更为绚丽神秘的地方——屏边大围山森林公园。大围山森林公园四季云雾缭绕。一望无际的森林随着山峦的起伏变幻着群落和色彩,群山时而迷迷茫茫,忽隐忽现;时而霞光辉映,层林尽染;林涛阵阵、鸟鸣声声,仿佛有一支巨大的交响乐曲,将森林公园的多彩节奏演绎得波阔壮阔。而在密…     

大围山国家级自然保护区自然因素对生物多样性影响的评估

大围山国家级自然保护区是云南省最重要的保护区之一,生物多样性的管理十分重要。研究对生物多样性和影响生物多样性的因子进行评估。研究所采用的第一手自然和生物多样性的第一手数据,如海拔、土壤类型、坡度、森林覆盖率、植物物种、鸟类物种等从大围山保护区的28个样点中获得。用CurveExpert统计软件对这些数据进行数理统计分析,分析的结果显示鸟类物种的多样性与植物物种的多样性呈明显的正相关,说明生境对动物区系多样性保护的关键作用。该研究还分析了关键景观特征与生物多样性的相关性,并对如何测度生物多样性和增强保护和管理该区域的生物多样性提出了建议。本研究的结果不仅对大围山自然保护区的生物多样性保护和管理策略的制定有重要的意义,而且对中国其他自然保护区的保护和管理也有积极地作用。     

浏阳大围山土壤研究初探

在阐述浏阳大围山森林土壤形成条件的基础上，重点阐明了大围山各类土壤的理化性质、肥力特点及土壤垂直分布规律。大围山土壤土层深厚，质地较轻，pH值为4．5∽5．4，养分丰富，N、P、K含量较高；大围山土壤分布自下而上依次为山地红壤、山地黄壤、山地黄棕壤和山地灌丛草甸土，在海拔1100m以上的山间盆地和凹地间有草甸、沼泽土分布。     

云南大围山自然保护区石灰岩珍稀濒危植物研究

在大围山自然保护区河口南溪石灰岩地区海拔100~1 200m区域设置样带、样方等进行标本采集,根据相关的植物志、植物图鉴及珍稀濒危植物保护文件进行统计分析。结果表明:区内有珍稀濒危保护植物34种,隶属26科32属,其中,蕨类植物3科3属3种,裸子植物4科5属6种,被子植物19科24属25种;濒危的种类8种,渐危的16种,稀有的10种。文章对植物濒危原因、保护措施等进行了分析。     

大围山野生白檀资源调查与分析

通过资料查阅、访问和实地调查相结合的方法对大围山白檀资源进行调查,并进行相关分析.结果表明:该区域的白檀集中分布在海拔1 200m以上的黄棕壤地带及高山草甸区,通过根蘖繁殖和鸟类传播两种方式进行自然繁衍;光照强度、土壤表层保水能力和肥力是白檀自然分布的主要限制因子;该区域白檀单株产量差异较大,变异系数为59.14％,最...     

长白山自然保护区蝴蝶区系研究

2003～2006年对长白山保护区蝴蝶种类进行了多次系统调查,共采集蝴蝶100种,隶属于7科59属,区系成分以广布种为主,各林带蝴蝶种类以红松阔叶林最多,苔原带最少,体现了环境变化对蝴蝶种类分布的影响。     

毛果木莲在云南大围山地区的资源分布现状及保护措施

毛果木莲为中国云南特有珍稀树种,据文献记载仅分布于云南省屏边县"大围山",是国家Ⅱ级重点保护植物.于2008和2010年对毛果木莲在云南大围山地区资源分布状况进行了调查,分析其种群现状、自然更新能力、当地居民的利用及导致树种濒危的可能因素,指出其种质资源有效保护所面对的问题及应采取的措施.     

Altitudinal patterns of the flora of seed plants of Dawei Mountain in Yunnan Province, south China

Altitudinal gradient incorporates multiple resource gradients, which vary continuously in different fashions. It is important to study the mountain floristic patterns along altitudinal gradients, which reveal the regular pattern of the flora along the environmental gradients, the changing trend of biodiversity patterns along the altitudinal gradient, and relevance of biological fitness. To explore the compositional characteristics and ecological significance of floristic patterns along altitudinal gradient in China National Nature Reserve of Dawei Mountain in the southeast of Yunnan Province, field investigations have been made to the flora along the two routes of the southwest slope and the northeast slope of the said reserve, including a vertical vegetation transect. Meanwhile, further investigations have also been made to the flora of Dawei Mountain, which has been accounted for in the literature, as Flora Yunnan, The Seed Plant in Yunnan, and so on. The structural characteristics of the flora and the altitudinal distribution pattern of its floristic components were analyzed. By applying systematic cluster analysis, the altitudinal position of the dividing line of floristic changes along altitudinal gradient was detected, and the effects of the montane climate on the vertical variation of floristic composition were studied. Conclusions were put forward. This paper can be summarized as follows: (1) The obvious boundary that differentiates tropical floristic elements is located at the altitude of approximately 1,500 m; it is reasonable to stipulate the boundary line between tropical rain forests and the evergreen broad-leaved forests. (2) The vertical vegetation spectrum made by cluster analysis shows that humid rain forests are below 700 m a.s.l, montane rain forests are between 700 and 1,500 m, monsoon evergreen broad-leaved forests are between 1,300 and 1,800 m, and montane mossy evergreen broad-leaved forests are above 1,800 m a.s.l. Nonrepresentative montane mossy dwarf forests (above 2,100 m) in the area are distributed in windward sides and in barren land on the mountain slopes. __________ Translated from Acta Phytoecologica Sinica, 2005, 29(6): 894–900 [译自: 植物生态学报]     

Vertical patterns of the flora of seed plants in Dawei Mountain in Yunnan Province, Southwest China

Vertical gradients incorporate multiple resources gradients which vary continuously. Therefore, research on mountain flo-ristic patterns along vertical gradients is important to reveal regular patterns of the flora along environmental gradients and to under-stand the changes in biodiversity along these gradients and their biological fitness. This study was designed to explore the character-istics of the floral compositions and ecological significance of floristic patterns along the vertical gradients of the National Nature Reserve of Dawei Mountain, located in the southeast of Yunnan Province. We analyzed the structural characteristics of the flora and the distribution patterns of its floristic components as a function of elevation on the basis of our field investigations along vertical vegetation transects. We carried out a systematic cluster analysis in order to determine the dividing line of floristic changes by eleva-tion along gradients and studied the effects of mountain climate on the vertical variation of floristic composition. The study shows: 1) that the obvious boundary, which differentiates tropical distribution, is located at an elevation of approximately 1,500 m, which separates the tropical rain forests from the evergreen broad-leaved forests; 2) that humid rain forests are found below 700 m elevation, mountain rain forests between 700 and 1,500 m, monsoon evergreen broad-leaved forests between 1,300 and 1,800 m and mountain mossy evergreen broad-leaved forests above 1,800 m. Non-representative mountain mossy dwarf forests (above 2,100 m) in the area are found on the windward sides and barren lands on mountain slopes; 3) that Hopea mollissima is one of the major component species of mountain rain forests, but it should not be considered as the major indicator species in humid rain forests as is generally accepted.