片语

species diversity indices物种多样性指数

declines in species diversity物种多样性下降

center of species diversity多样性中心

the species diversity index物种多样性指数

index of species diversity物种多样性指数

Species Diversity On Various物种多样性在不同

indexes of species diversity物种多样性指数

animal species diversity动物物种多样性

species species diversity物种多样性

英汉例句

• differences of the plant diversity of these three vegetation communities are little, and the species diversity and evenness of steppe community are less than those of arbor and shrub communities.

  三种植被群落在植物多样性方面差异并不大，草原群落的物种多样性和群落均匀度要略小于乔木林和灌木林群落。

• the characteristics of the species composition in the forest boundary were analyzed by species diversity index, species richness index, species evenness index and species dominance index.

  用物种多样性指数、丰富度指数、均匀度指数和优势度指数，对边际带物种组成的特征进行分析；

• for all dune types the species diversity indices of perennial plants were the highest, those of annual plants were at the second, they increased from shifting sand dune stage to fixed stage.

  植物生活型上各沙丘类型上的物种多样性指数均以多年生草本为最高，其次为一年生草本，而且从流动沙丘至固定沙丘阶段呈递增变化。

• most scientists have assumed that, as carbon dioxide levels increase and the earth warms, plant species diversity in the rainforests will start to dwindle, with plantsunable toadapt to the heat.

  大多数科学家原先猜想随着二氧化碳量的增加和地球变暖，因为植物不能适应提高的温度，雨林中的植物物种种类会开始萎缩。

• grazing disturbance is one of main factors affecting species diversity of grassland plant communities.

  放牧干扰是改变草地植物群落物种多样性的主要因素之一。

• on the whole, the spatial patterns of species diversity of seed plants and its differentiation were jointly shaped by habitat heterogeneity, energy and geological history.

  总体上，云南地区植物多样性的分布格局及其分化可能与其生境、热量条件和地质历史有关。

• the great heterogeneity of karst habitat was the basic of species diversity maintenance in karst forest.

  喀斯特生境的高度异质性是喀斯特森林物种多样性维持的基础。

• it is proposed that in the succession, the increase of species diversity is a adapting manner for the ecosystem to disturbing, and is a strategy of ecosystem to recover the stability.

  演替过程中，群落物种多样性的增加是生态系统对外界轻度干扰的一种适应，是恢复生态系统稳定性的一种对策。

• this study focused on the effects of annual net primary productivity of forest ecosystem and habitat complexity of huanglong nature reserve on the species diversity of small mammals.

  本研究主要探讨黄龙自然保护区森林生态系统年凈初级生产力水平和栖息地复杂程度对小型兽类物种多样性的影响。

• the release of non-native fish is controversial, because big predators like blue catfish almost certainly alter food webs and species diversity in areas where they are introduced.

  放生非野生鲶鱼目前还是有争议的，因为像蓝鲶这样的大型捕食者几乎肯定会改变其引入地区的食物网和物种多样性。

• the result is 「an apparently unending competition between these two reproductive strategies,」 he said, 「contributing to disparities in species diversity observed among different groups of plants.」

  他说，结果是「在这两种繁殖策略之间有一个明显的无休无止的竞争，这将促进不同植物种群中的物种差异的多样性」。

• species diversity index (sdi), as an important tool for assessing biodiversity state quantitatively and providing theoretical basis for its protection, has been used widely.

  而物种多样性指数的计算又是定量评价生物多样性现状和为其保护实践活动提供理论依据的重要工具。

• the maintaining mechanism of species diversity is a key and forward problem in biodiversity study.

  物种多样性的维持机制是生物多样性研究的一个核心和前沿问题。

• biodiversity consists of species diversity of all animals, plants and microorganisms on the earth, their genetic diversity and ecosystem diversity.

  生物多样性系指地球上所有动物、植物、微生物的物种多样性和它们的遗传及变异多样性。

• the species richness and species diversity index of the tree layer and shrub layer were obviously bigger than those of the herb layer.

  乔木层和灌木层的物种丰富度和物种多样性指数均明显大于草本层。

• paquette says he hopes that experiments that have predicted higher biomass in the presence of greater species diversity will apply to practical forestry, too.

  paquette说他希望那些预测出丰富的种类多样性产生更高生物质的实验也会应用于实用林业中。