生态种的

Based on the investigation of 38 forest plots in Beijing mountainous region, the niche breadth and overlap of seven rare and endangered herbage plants Glycine soja, Cypripedium macranthum, Malaxis monophyllos, Herminium monorchis, Paeonia obovata, Platanthera chlorantha and Liparis japonica were calculated and analyzed. The results showed that G. soja had a wider niche breadth (0.297), while C. macranthum, M. monophyllos and H.

基于北京山区有珍稀濒危草本植物分布的38块森林群落样地调查数据，对北京山区的野大豆、大花构兰、沼兰、角盘兰、草芍药、二叶舌唇兰和羊耳蒜等7种珍稀濒危草本植物进行了生态位宽度和生态位重叠计算与分析。

From the point of view of geobotany, with the method of correlative factors of growth of plants, a countrywide theoretic ecological division was done for the introduction of Camptotheca acuminata and three kinds of areas of ecological preferent zone, ecological adaptive zone and ecological unadaptable zone were divided. With the theory of synecology, the characteristic on environment, constitution, life form spectrum, diversity, similarity of plots of communities were researched. Applying the method of species association, discrete distribution, indensity index, fractal geometry, etc. to research relations between the species of the communities, space distribution of Camptotheca acuminata, structure of age of Camptotheca acuminata, in different communities. Using the theories of autoecology, distibutons of seeds on land and growth of seedlings in vertical and horizontal directions, biomass of organ of Camptotheca acuminata were analyzed. On the opinions of conservation biology, the external and internal factors impressing Camptotheca acuminata were analyzed to research the mechanism of the endangered species, and with using of CTM Model, the future development direction of Camptotheca acuminata in different communities were forecasted, and. Standing on the position of resources ecology, discussing the regularity of camptothein in Camptotheca acuminata of different sites and seeding of different resources, also the the derive technics of camptothecin.

本文从地植物学的角度，运用植物生长相关因子法，对我国喜树资源的生态适宜区进行了划分，理论上确定了我国的喜树的引种栽培的最适生活区域、生态适宜区域和不适宜生活区域；从群落生态学的角度，对野生喜树所在的典型群落的群落环境、群落组成、群落生活型谱、群落的物种多样性特点、群落样地间相似性进行了研究；从种群生态学的角度，运用种间联结性、离散分布模型、聚集强度指数、分析几何等分析手段，对野生喜树所在典型群落间的种间关系、喜树的空间分布格局、年龄结构等进行了分析；从个体生态学的角度，对不同年龄组的喜树的种子的散落的垂直分布、水平分布、时间分布及种子发芽率和千里重等特点、不同种源的人工喜树苗期特点、喜树的高生长和茎生长特点、喜树的器官生物量特点进行了研究；从保护生物学的角度，对野生喜树的濒危的内部因素和外部因素进行了探讨，并运用CTM模型对不同群落中野生喜树的种群趋势进行了预测；从资源生态学的角度，对我国地理环境下喜树中喜树碱含量的地理分布规律、不同种源的喜树幼苗中喜树碱含量变化规律进行了研究，并对喜树碱的提取工艺进行了探讨。

Mangrove ecosystem is a very special ecosystem lying in the intertidal zone.

红树林生态系统是位于海陆交界处的一种特殊的生态系统。

Using the ecological service value theory to evaluate the forest in Khotan drainage area is the center of my paper; in the meantime, it is also the creative point.

胡杨林、柽柳、胡杨疏林地，3种类型的森林生态系统，以柽柳灌木林的单位面积生态服务价值最高，其次是胡杨林。

The Ecological socialism is one kind of important theory trend in 1970's , it tries to explain the ecocrisis with socialism theory , to transform society, looks for a realistic way leading to the future ideal socialism pattern.

生态社会主义是20世纪70年代兴起一种重要的理论思潮，它试图以社会主义理论解释当代生态危机，对现存资本主义社会进行变革，从而为克服人类生存危机找寻一条通向未来社会主义理想模式的现实出路。

It is also an effective way to protect and reconstruct eco-environment,which can bring about better economic,social and ecological benefits.

It也是一种有效的方式来保护和重建生态环境，这可以带来更好的经济，社会和生态效益。

Season arid in Southern China is a key ecological factor that influences dominant species subrogation in successional process.

对不同的生态恢复模式和生态恢复产业进行了研究，筛选了适合南方植被恢复的优化种，并进行应用和示范。

The Dongting Lake area is the largest lacustrine wetland ecosystem in China,where biological resources are very plentiful,which include 1428 species of plants,216 species of birds, 119 species of fishes,27 species of amphibians and retile,22 species of mammals and a great number of other wild living things.

中文摘要：洞庭湖湿地是我国最大的淡水湖泊湿地生态景观系统，生物资源十分丰富，其中植物资源 142 8种，鸟类资源 2 16种，鱼类资源 119种，哺乳类 2 2种，两栖爬行类 2 7种及其它大量的野生生物资源。

The present ecological greening has actually three types: near-natural greening, de-restoration of man-made vegetating and pollution-resisting ecological greening.

当前流行的生态绿化也存在三种类型－近自然绿化、去人工化植被恢复和抗污染生态绿化。

Cities are a type of socio-ecological system that has an expanding range of articulations with nature's ecologies.

城市是一种社会生态系统，与自然生态的对接范围一直在扩展。

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！