查询词典 species diversity
- 与 species diversity 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The living environment, ecological structure and species diversity of acidophilic microorganisms, and the effects of temperature and oxygen on those organisms are summarized in this paper.
综述了嗜酸微生物存在的环境、生态结构和微生物多样性,以及温度、氧对嗜酸微生物的影响。
-
Abstracts The living environment, ecological structure and species diversity of acidophilic microorganisms, and the effects of temperature and oxygen on those organisms are summarized in this paper.
综述了嗜酸微生物存在的环境、生态结构和微生物多样性,以及温度、氧对嗜酸微生物的影响。
-
Three indigenous latifoliate species namely Castanopsis fissa,Elaeocarpus sylvestris and Schefflera octophylla were selected from the forest for the purpose of water conservation in the scope of midst and small reservoirs in Shantou to determine the species diversity,natural regeneration and stability of communities.
生物多样性是生物及其与环境形成的生态复合体以及与此相关的各种生态过程的总和,包括数以百万计的动物、植物、微生物和它们所拥有的基因以及它们与其生态环境形成的复杂生态系统,是生命系统的基本特征[1]。
-
In "the National Project on Wildlife Protection and Nature Reserve Construction" carried out by the State Administration of Forestry of China, pheasants are among the 15 groups of animals and plants which have high priority for conservation. In this paper, the species diversity, endemic species, and distribution patterns of Galliformes in China are introduced, and the current status and threats to this group of birds are summarized. Base on achievements made in in situ protection, ex situ conservation and scientific research, the main problems existing in conservation practice are discussed, and a conservation strategy for Chinese Galliformes is suggested.
本文结合国家林业局&十五&期间将要实施的《全国野生动植物及自然保护区建设工程总体规划》,对我国鸡形目鸟类的多样性、特有性和分布特点进行了阐述,对该类群的濒危状况和致危因素进行了分析,从就地保护、易地保护以及科学研究三个方面介绍了我国在该类群研究与保护方面所取得的成就,探讨了目前保护管理工作中所存在的问题并提出了相应的保护对策。
-
Galliformes, birds, species diversity, endemic species, conservation, China
中文关键字:鸡形目,鸟类,物种多样性,特有种,保护,中国
-
In the present project,the project group investigated Cololejeunea flora of some provinces of China, collected over 500 specimens of Cololejeunea and over 7000 specimens of other liverworts,and borrowed over 3500 specimens (including 416 types)from other important herbaria. The species diversity and distribution weree clarified preliminary by means of mophologocal and ecologoical observation and studies on oil bodies and chromosomes as well as bioactivity of some species.
本项目对我国部分省区作了详尽的野外考察,采集了500余份我国疣鳞苔属的标本和7000多号其它苔类植物标本,从世界各大标本馆借阅了3500余份标本(包括416份模式标本),通过形态学,解剖学和生态学的观察,结合一些种类的染色体和油体以及生物活性的研究,初步搞清了我国和其它亚洲国家疣鳞苔属的种类和分布。
-
The plant species diversity of 9 associations in the Oxytropis coerulea community of mount Wutai was studied by using richness index, Simpson index, Shannon-Weiner index and evenness index, respectively. The results indicated that: The quantity of populations and species in the community have obvious unevenness character, which leads to variation of λ. index and H' index among different associations. R1 and H' increase firstly, and then decline slowly with the increase of elevation, which reach peak value at 2100 while E1 index waves steadily with elevation change.
应用丰富度指数(R1)、Simpson指数、Shannon-Weiner指数和均匀度指数(E1)研究了9个群丛的植物种多样性,结果表明:种群数量及其种群内个体数量具有明显不均匀性,进而导致λ指数和H'指数在不同群丛间的变化,R1、H'指数随海拔高度增加表现为先上升而后缓慢下降,在海拔2100m处达峰值,E1指数则随海拔变化呈现不稳定波动。
-
Species in the genus Phrynocephalus typically inhabit the Palearctic region. Speciation, species diversity and patterns of distribution have been heavily influenced by the complicated geography and geological history.
沙蜥属Phrynocephalus作为鬣蜥科Agamidae中的古北界类群,分布区复杂的地质、地理历史对该属物种形成、分化及分布格局的形成具有重要的影响。
-
4The low similarities betweenseed banks and the established vegetation were considered to be the consequences ofthe frequent presence in the established vegetation but not in seed banks of someperennial rhizomatous plants which mainly depended on vegetative propagation toregenerate;insignificant difference in the species composition of seed barks amongtransects, might be accounted for by the fact that the flood drift had functioned as adisseminator for propagules;and with the intensifying of the flooding disturbance,both species diversity and the similarity between seed banks and establishedvegetations declined.
4种子库与地上植被相似性普遍较低,其原因是主要靠营养繁殖以更新种群的多年生根茎植物经常在植被中出现而不在种子库中出现;受水淹干扰的样带之间种子库的种类组成差异不大,说明洪水漂移行使了繁殖体传播和散布的功能;随水淹干扰强度增加,种子库物种多样性指数减小,种子库与地上植被的物种组成相似性下降。
-
Products related to plywood, Blockboard,ù°, veneer, imported logs, wood species diversity and species range.
产品涉及胶合板、细木工板、贴面板,单板,进口原木,木种多样,品种齐全。
- 推荐网络例句
-
On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
-
Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
-
You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?