查询词典 species diversity

The species diversity index of the Potaninia mongolica community was higher than that of three other communities and lower than that of Oxytropis bicolor community, and Potaninia mongolica, its dominant tree was stabile, therefore the community was a stabile community.

绵刺+珍珠猪毛菜+泡泡刺群落物种多样性指数比较高，生态优势度也较高，该群落比较稳定，其建群种的绵刺种群同样处于稳定阶段，所以群落是比较稳定的。

Ulmus lamellosa ; Community characteristics ; Flora ; Species diversity

脱皮榆；群落学特征；区系；物种多样性

Major contents of this paper were: the community structure of zoobenthos, species diversity and production of zoobenthos and so on.

主要结果如下： 1、军山湖计有底栖动物37种，其中瓣鳃纲3科10种；腹足纲7科11种；多毛纲1种；寡毛纲6种；水生昆虫7种；其他2种。

Detailed investigation and research on flora of powdery mildew fungi will provide not only basic information to prevent damage from powdery mildews and protect the species diversity, but also samples for studying biology and phylogeny of these fungi.

因此对白粉菌区系进行详细的调查和研究，不仅能为植物白粉病的有效防治和物种多样性保护提供基础资料，而且还能为开展白粉菌生物学、菌物系统演化等相关研究提供标本素材。

For the purpose of planning the effective conservation strategy, the species diversity and ecological distribution of raptors were investigated by fixed transects at 8 areas from 2001 to 2005 in Beijing region.

为有效保护珍稀野生动物多样性，於2001~2005年利用固定样线法对北京地区隼形日猛禽物种和生态分布进行了调查，获得珍稀鸟类14种，其中国家一级保护物种为金雕和白肩雕。

Besides, investigations on plant species diversity、forest crown density、incidence extent、gradient and exposure of 3 forest communities were taken,while dilution heat method and semi-micro Macro Kjeldahl method were used to determine the content of organic matter and nitrogen in soil.

调查了3个油松林群落的物种多样性、林分郁闭度、油松毛虫发生程度、坡度及坡向。

The transition zone of desert plant communities generally has high level of species diversity and relatively low degree of ecological dominance.

荒漠植物群落过渡地带一般具有较高的物种多样性和较低的生态优势度。

This study provided the analysis of changes of species diversity and productivity in relation to soil properties in six typical habitats （wet meadow, dry grassland, fixed dune, semi-fixed dune, semi-shifted dune, and shifted dune） in Horqin Sand Land.

研究了科尔沁沙地6个典型生境类型的沙质草地群落物种多样性与生产力的变化，分析了植物群落格局、物种多样性、生产力与土壤特性的关系。

Babblers, distribution pattern, center of species diversity, China

中文关键字：画眉科，分布格局，分布型，多样性中心，中国

The ecologicalcharacteristics of community structure, species diversity, its ecological effects on soil health,and eco-system functions of soil water holding capacities, water and soil conservation effectswere studied symmatically in Nverzhai watershed , which was the key experiment anddemonstration spot of the Yangtze River Proctction Fores.

针对长江中下游低山丘陵区土地退化现状和我国现阶段生态工程建设需求，以湘西北武陵山区女儿寨小流域为研究对象，研究了7种典型植被恢复模式的群落结构、生物量分配格局、物种多样性、土壤健康效应等生态学特征及水土保持、水源涵养等生态系统服务功能，具有重要的理论意义和应用价值。

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。