在本文中，对关键种的概念进行了讨论，并介绍了关键种的典型特征及其在群落和生态系统中的判别。
This paper discussed the keystone species concept and introduced the typical characteristics of keystone species and their identification in communities or ecosystems.
上海长江口是我国的典型河口，海域水面开阔，资源丰富，具有多种生态系统服务功能。
The typical estuary—Shanghai Yangtze River Estuary, which is full of resources and with widen surface, has many ecosystem services.
新疆艾比湖是典型的干旱区湖泊，作为一个封闭的内陆湖泊，具有特殊的湿地、干旱生态系统。
The Ebinur lake of Xinjiang is located in an arid area, being a closed inland lake with a peculiar wetland-arid ecosystem.
云南金沙江干热河谷典型区具有北热带温度条件和长达半年以上的干季时间，生态系统具有破坏容易恢复难的特点。
The representative area of dry and hot valley of Jinsha River in Yunnan Province has a temperature condition of the northern tropical zone and a long dry season of more than half a year.
由于研究区是我国北方典型的农牧交错带，其生态系统脆弱且有着显著的敏感性。
The study area is typical of northern China ecotone and this study area ecosystem is vulnerability and sensitivity of the significant.
另外针对欧亚大陆典型草原生态系统中实生苗动态对于刈割或放牧干扰的响应还很少有实验性研究。
Moreover, the responses of seedling dynamics to different disturbances such as mowing and grazing in Eurasian typical steppe ecosystems have been scarcely studied before.
我国西南地区是全球喀斯特三大分布中心之一，属于典型的脆弱生态系统。
Southwest China is one of the three distribution centres of Karst in the world, and it is the typically fragile ecosystem.
灌丛是三峡地区典型的退化生态系统类型。
Shrubland is the typical degraded ecosystems in the Three Gorges Region.
通过建立自然资源价值分类体系，估算典型生态区生态系统效益功能价值。
The value classification system of natural resource was built up to estimate efficiency and functional value of typical ecosystems.
研究结果表明，这两个陆面过程模式可以作为研究这两种典型森林生态系统陆气交换的基本工具。
The results show that the two models can be used as a basic tool of investigating land-atmosphere interactions at the two typical forest ecosystems.
请跟随我们走进“狂野法国”这个迷人的崭新野生节目，观测欧洲典型的生态系统。
Journey through 'wild France' with this fascinating new wildlife series and observe life in Europe's typical ecosystems.
该模型采用比较典型的草原生态系统中的食物链作为建模对象。
The modeling object is the food chain in grassland ecosystem which is a representative one.
武夷山保存了典型的中亚热带原生性森林生态系统。
Wuyi Mountains preserve the primary forest ecosystem characteristic of the mid-subtropics.
峰丛洼地生态系统中小气候在垂直方向上的差异具有典型性。
The micro-climate is obivous in vertical direction in the mountain.
峰丛洼地生态系统中小气候在垂直方向上的差异具有典型性。
The micro-climate is obivous in vertical direction in the mountain.
应用推荐