物种多样性
- 与 物种多样性 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The major results are as follows:(1) According to the data collection and site investigation, the author analyzes the ecological characteristics of the local species and plant diversity. The author analyzes the existing problems that the Phragmites communis coverage is very low, thus accounting for the necessity of the human-induced restoration.
主要研究结果为:(1)通过资料收集和现场调查,对北固山湿地的土著物种类型以及植物多样性等生态特征进行分析,同时针对湿地存在的芦苇覆盖度极低的问题进行分析,说明了对芦苇群落进行人工修复的必要性。
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In this study, we identify eight putatively nonfunctional alleles of the BADH2 gene and show that these alleles have distinct geographic and genetic origins.
栽培稻是一种高度多样性的物种,拥有很长而且复杂的进化史。
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After extensive survey of species of Takakia, we couldn't have found any individuals because of its limited population distribution, so we decided to add some relevant studies of conservation genetics to make up for the shortage of this project, including the analysis of effect of stand age and management regime on genetic diversity on Thuidium cymbifolium in Western China, and genetic structure of the endangered insular plant Neolitsea sericea on the Zhoushan archipelago. Results showed that the population of T.
藻苔类植物多分布于高山雪域地带,且范围极为有限,课题组经多次野外搜寻,未能采集到活体材料,而课题实施时间仅有1年,因此课题组同时积极开展云杉人工林林下大羽藓遗传多样性恢复的动态变化,以及岛屿地理隔离对濒危物种舟山新木姜子种群遗传结构的影响等研究,以弥补项目实施之不足。
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With the study of temporal-spatial distribution of siol microbial diversity,we found species richness index,diversity index and evenness index had a falling trend,and the downtrend was slighly different.
在研究土壤微生物的时空分布中发现,土壤微生物现物种丰富度指数、多样性指数、和均匀度指数随海拔升高,都呈缓慢下降趋势,并且在不同地区下降趋势略有差别。
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The sampling sites were divided into Suaeda salsa land, Spartina land and beach according to the vegetation.
互花米草为海滨湿地的保护和生态修复提供了先锋植物种质资源,但同时在一些地区的海滨滩涂生态系统中,其生长影响了本地物种的生存,造成负面效应,其典型的&两面性&引起了学术界的广泛关注,关于互花米草对侵入地的生物多样性、海岸带生态系统过程及功能的影响研究受到广泛关注[2 ̄4]。
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Stipa represents species that have experienced a long evolutionary history that has resulted in high genetic diversity.
针茅属植物是经过长期的进化和选择保留下来的物种,具有丰富的遗传多样性和强的进化趋势。
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The composition and distribution of lichens were influenced by the aspects of the trucks, host trees and their sizes. Richer number and amounts of lichens are found on southern aspect of trunks. Vaccinium duclouxii was the host tree with the richest epiphytic lichens in the forests in the area . Most epiphytic lichens occurred on medium stems of DBH 5.0–25.0 cm.
树干方位、宿主种类和宿主径级等都对附生地衣的物种组成和多样性有着重要影响,附生地衣更多地出现于树干南向方位,云南越桔的附生地衣最为丰富,胸径5.0–25.0 cm 的树木上附生地衣较多。
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Most studies showed that the abundance of the natural enemies increased but that of the arthropod herbivores decreased or be controlled with the enhancing of the habitats and vegetational diversity.
古德祥 ,张古忍,刘雨芳大多数的研究表明:增加系统内生境和植被多样性,能增加天敌的物种丰富度和种群数量,降低或抑制有害节肢动物的种群密度。
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Diverse phenological performances, xeromorphic leaf traits and different responses to drought in the savanna woody species with different leaf phenology may facilitate partitioning of resource utilization and hence co-existence of woody plants in dry-hot valley savannas.
元江干热河谷木本植物表现出来的多样性的物候特征、旱生的叶片形态结构以及不同物候类型植物的光合生理对干旱适应策略的差异有助于促进资源的合理分配和利用,促进物种共存。
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During the period, six papers were published and one was included in SCI. A preliminary phylogenetic and zoogeographical study on some important and related genera were carried out and some important scientific names were corrected.
本项研究共发现中国新纪录属1个及一些中国新纪录种,已发表新种56个;在核心刊物上发表学术论文6篇,1篇被SCI收录;初步探讨了相关类群的系统发育和动物地理学问题,澄清了一些重要物种的学名,为织蛾科的生物多样性研究增加了很多新内容,为有关害虫的防治提供了基本依据。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。