物种多样性

The results reveal that the species richness of all the ligneous plants decreases with the increase of altitude.

对晋西黄土丘陵边缘土石山区不同海拔高度木本植物物种丰富度以及各群落间β多样性特征进行了分析。

In microevolution, it provided a number of molecular marker systems for the research of genetic variation in plant natural populations, greatly facilitating investigation of the evolutionary mechanisms under natural conditions.

它们在研究植物天然居群遗传变异的规律、揭示进化机制方面已展示了巨大潜力，这是进化生物学中最重要的研究领域之一，也是物种遗传多样性保护的理论基础。

The representative of Nanji Islands is rich in mollusca and algae resources, reflects the high biodiversity, and the distribution of many marine species has its specificity and can fill the vacancy. These make Nanji Islands National Marine Reserve.

南麂列岛的代表性特征是贝藻类资源丰富，体现了很好的生物多样性，许多海洋物种的分布具有特殊性和补缺性，由此确定了南麂列岛国家级海洋自然保护区的地位。

In this study, the authors list thirty-two families, approximating to 300 species, of land mollusk from Taiwan. Many of them have not been discovered and described until recent years, revealing the investigation potential of the land molluscan diversity of Taiwan.

本研究中，作者共整理报告 32 科约 300 种台湾产的陆生软体动物，其中许多种类为近年新发现之新物种，显示台湾的陆生软体动物多样性仍有广大探索空间。

It played an important role in the phylogeny of monocotyledon and the plants with reticulate vein. The haplotypes of trnL-F and atpB-rbcL noncoding regions of cpDNA were analysed to infer phylogeography and the history of speciation, and the possible refugia of Croomia. ISSR markers were used to study the level and patterns of genetic diversity of Croomia.

本文通过cpDNA非编码区trnL-F和atpB-rbcL序列研究了Croomia的分子亲缘地理学，推测了可能的冰期避难所和物种形成、演化的历史；同时通过ISSR分子标记研究了Croomia的遗传多样性分布格局及其与地理格局间的关系，并在此基础上提出了相应的保护策略。

Three levels of organization: genetic, organismal, and ecological diversity.

物多样性是指生命现象中所有的变异。基因、物种、及生态系这三个层次

To keep certain number of greater patches through protection and restoration in urban area is meaningful;(2) small greenland patches with diverse structure may promote the heterogeneity of urban landscape, and serve as colonial land and stepping stones for certain populations, and create rich types of habitats and ecological niches. So laying small patches in urban environment is also important. Incorporation of the coarse grain and fine grain, aggregation and outliner of landscape elements may creates better landscape patterns;(3) many literatures have showed that good landscape connectivity benefits the longer persistence of species and the conservation of biodiversity.

大的绿地斑块有多种作用，通过城市地区自然景观斑块的保护或城市绿地的建设，在城市中维持一定的较大规模的绿地斑块是有积极意义的；（2）结构不同的小的绿地斑块可增加城市的景观异质性，为生物提供迁徙地、扩散暂歇地，创造丰富的生境资源和生态位，因此，结合大的绿地斑块的建设，同时布置小的绿地斑块作为补充，粗粒、细粒结合，集聚、分散结合是形成优良绿地景观格局的途径；（3）诸多的文献已显示，好的景观连接性有利于物种持续较长的时间，从而有利于生物多样性的保护。

This equality of rights does not overshadow the diversity of species and of individuals.

这种权利的平等并不抹杀物种和个体的多样性。

The present study investigatated the effect on the diversification of weed community, including weed abundance, dominance, evenness, biomass, and mean height after mulching straw and intercropping white clover in the tea plantation from 2005 to 2006. The results were as follows: 16 families and 31 species were found in total. In April, the dominant species characterized with slow growth, lower biomass, and less than 30 cm height; in July those who grow faster with higher biomass and height became dominant; In September, these malignant communities reduced, while the oxalis and diffusa characterized with lower biomass and low height gradually increased. In the three seasons, the weed abundance, community diversity and evenness increased, and the dominance, the biomass and average height of weeds remarkably reduced after intercropping white clover and muching straw.

结果表明：茶园共有杂草16科31属31种，春季（4月）以生长速度较慢、生物量小、株高在30 cm以下的杂草为主，夏季（7月）以生长快、植株高和生物量大恶性杂草为主，秋季（9月）恶性杂草开始减少，酢浆草、白花蛇舌草等生物量小、株高矮的杂草逐渐增多；稻草覆盖处理茶园春、夏和秋季3个观测时期杂草物种丰富度、多样性、均匀度等指数均高于清耕对照，优势集中性指数低于清耕对照；间种白三叶草处理春、夏和秋季3个观测时期杂草总数量和生物量均显著低于清耕对照，夏、秋季杂草平均株高显著低于清耕对照；稻草覆盖和间种白三叶草处理春季茶芽重和产量显著高于清耕对照，鲜叶中游离氨基酸含量高于清耕对照，茶叶感官评审得分高于清耕对照处理。

The second was the Convention on Biological Diversity to address the growing evidence of massive and planetwide species extinction at the hands of human activity

第二条是《生物多样性公约》，旨在以应对人类活动所导致的大规模的、在全球范围内日益严重的物种灭绝的迹象。

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。

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！