物种多样性

In this study, we analyzed 8 rare and endangered animals, including giant panda, Yunnan golden monkey, red panda, Asiatic black bear, rhesus monkey, slow lorries, Chinese pangolin and concolor gibbons from China and adjacent areas.

本文以我国珍稀动物大熊猫、滇金丝猴、小熊猫，亚州黑熊、间蜂猴、恒河猴、中国穿山甲、黑冠长臂猿为材料，采用蛋白和同工酶电泳以及线粒体DNA序列分析（包扩采用非损伤取样以毛发和陈旧皮张样品进行的分析）的方法研究珍稀动物的遗传多样性状况及其同物种濒危的关系以及根据遗传学数据确定保护的基本单元等。

A flume experiment and a 2-D numerical model, TABS-2, were employed to simulate the hydraulic characteristics in fixed-bed condition. In addition, by selecting Gobioidi, Cyprinidae and Homalopteridae as the indicator species, the change of fish habitat and the habitat diversity for two different Froude number conditions were discussed.

本文针对前人研究之台湾溪流指标物种鲤科、平鳍鳅科与虾虎科三种鱼类，探讨模拟河段常流量两种不同Fr下，工法在不同排列间距对其栖地可用面积之消长情形，并配合两种栖地多样性指数共同评估工法配置之优劣。

The habitat condition was more diversifiable and complicate.

河口上游区域的大面积围垦造地及环境污染是降低底栖动物食性功能群多样性的主要原因，缺乏杂食和碎屑食者，且肉食者物种很少，说明了区域生境破碎化明显，导致营养源的减少以及食物链的简单化。

Based on the locality data processed by GIS, the diversity and distribution of Babblers in China were analyzed: we looked at geographical and elevational distribution, and centers of diversity of Babbers.

通过运用GIS技术处理物种分布数据，研究了中国画眉科鸟类的分布格局和多样性中心。

Bieti lost its habitat continuously in recently decades associated with the extension of rangelands and farmlands, as well as firewood collection etc. The monkey live mainly in primary fir forest and the mixed conifer forest, to evaluate the status of the monkeys' habitat, we employed GIS and RS software to identify the habitat types with five Landsat TM/ETM+ satellite imagery in winter of 1986, 1992, 1997, 2001 and 2006 years respectively. The work resulted in: 1 the size of summer grazing lands, farmlands, and fir forest was 13 100 hm2, 6 400 hm2, and 30 500 hm2 in 2006 respectively; 2 during the past 20 years (1986-2006), the size of fir forest (including primary fir forest and the mixed conifer forest) decreased by 14.6%(5 200 hm2), summer grazing lands and farmlands increased by 47.2%(4 200 hm2) and 14.3％(800 hm2) respectively; and 3, during the past 20 years, the number of firry forest patches increased by 68.4%, the mean size of firry forest patches decreased by 49.3%(from 15.1 to7.6 hm2), the largest patch index of firry forest decreased 54.9%; the patch richness had no change, but the Shannon's diversity index and the Shannon's evenness index increased by 2.7% respectively.

为了评估该物种的栖息地现状和变化情况，我们通过野外调查工作，应用GIS和RS技术，分别解译了1986年、1992年、1997年、2001年和2006年的Landsat TM/ETM+冬季卫星影像，并对解译结果进行了计算和分析，得到了以下西藏种群栖息地的主要结果：1）现有暗针叶林（包括原始针叶林和针阔混交林）面积是30 500 hm2，夏季牧场面积是13 100 hm2，农田面积是6 400 hm2；2）在过去20年间（1986-2006年），暗针叶林面积减少了14.6％（5 200 hm2），夏季牧场面积增加了47.2％（4 200 hm2），农田面积增加了14.3％（800 hm2）；3）在过去20年间，暗针叶林的斑块数量增加了68.4％，平均斑块面积下降了49.3％（从1986年的15.1 hm2下降到2006年的7.6 hm2），最大的斑块指数下降了54.9％；景观丰富度并没有变化，但Shannon多样性指数和Shannon均匀度指数分别增加了2.7％。

With the deflected succession of aquatic ecotype plant functional group,the dominance of mesophytes and xerophytes increased,while the dominance of aquatic and hygric plants decreased. However,there are only planting crops in the reclaimed wetland. In the composition of plant biotype functional group,the hydrophytes reduced quickly with the deflected succession and the dominance of perennial herbs is mostly marked,and there are only annual herbs in reclaimed wetland. Compared with primary swamp,the species diversity index of meadow is the highest,the swampy meadow follows,and the reclaimed wetland is the lowest.

植物的水分生态型功能群组成随湿地的逆行演替，水生、湿生类植物功能群的优势度不断减少，中生、旱生类植物功能群的优势度逐步增加，而在垦后湿地只有农作物；植物生活型功能群组成随湿地的逆行演替，水生草本迅速减少，陆生多年生草本增加占据优势，而在垦后湿地均为一年生草本；湿地植物物种丰富度、多样性指数由原生沼泽、沼泽化草甸到草甸依次增加，草甸为最大值，而垦后湿地则最低。

From Imperata cylindrical community to bare land,species of plants changed greatly, the importance value of annual herbaceous plants increased gradually and the importance value of perennial herbaceous plants went down gradually. The number of companion species went down gradually, the species richness and plant diversity index reduced. Community structure was from complex to simple.

从白茅群落到光板地，植物的种类发生了较大变化，一年生草本植物的重要值逐渐升高，多年生草本植物的重要值逐渐降低，群落中伴生种的数量逐渐降低，物种丰富度及多样性指数减少，群落结构由复杂到简单。

Phragmites Australis, Ael uropus liitoralis, Zoysiamacrostachya, Messerschmidia sibirica, Limonium bicolor were the main vegetation types in the chenier seaside, but in the chenier plain, Artemisia annua, Artemisia mongolica and Herba Heteropappi Altaici occurred frenquently.

通过对无棣贝沙堤植物多样性的分析发现，样方内共出现物种20余种；同时，贝沙堤向海面和贝壳滩脊、向陆一面分别分布着以芦苇、獐茅、大穗结缕草、二色补血草、砂引草以及以青蒿、蒙古蒿、阿尔泰紫菀为优势种的群落。

Most species' populations were decline in last fifty years, especially since the last 1980's, the populations such as Alpine Musk Deer, Przewalski's Gazelle and Red Deer etc. declined dramatically;(5) Desertification and grassland degredation are obviously affected by climate change on macrographic scale, anthropogenic activities is an important driving role for desertification, herbing, land-development and urbanization have majority impact to biodiversity spatial pattern and its loss.

祁连山区动物资源组成成分复杂，总体上缺乏自身特有的种类，哺乳动物区系特点不很突出，既包含了东部黄土高原和东南湿润地区的兽类成分，又不乏青藏高原特有种类，同时还与新疆的动物区系有一定的联系，近50年来尤其自上个世纪80年代以来，多数种类的种群数量呈下降趋势，其中以马麝、普氏原羚、马鹿等物种的数量下降的最为显著；（5）土地沙漠化和草地退化在宏观尺度上受气候因素影响较大，人类活动对荒漠化的加速发展起着重要的驱动作用，尤其是放牧、土地开发和城镇化建设对生物多样性资源减少以及空间分布格局影响较大。

The results showed that the dominant tree species Picea jezoensis and Abies nephrolepis were distributed nearly over the whole transect,and the companion trees and most of shrubs were found in certain fragments respectively.The total number of species of the plot varied slightly,but species composition among the plots varied greatly along with the elevation variation.This trend reflected the high habitat diversity of this forest zone.

研究结果表明主要树种云杉和冷杉在整个暗针叶林带均有分布，而伴生树种和多数灌木出现于一定海拔范围内；沿海拔梯度物种数变化小而物种组成变化大则表明长白山暗针叶林丰富的生境多样性。

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！