查询词典 ecosystem

Above research results have great significance for studying establishment and succession ofmangrove ecosystem, collecting plantable tidal flat of mangrove silviculture, and researchingsea-level change with mangrove peat.

关于红树林生长带与潮汐水位关系的研究，自从早期红树林浸淹等级分类研究）'以来，开展的专门研究甚少，以至于新西兰著名盐生植物专家Chapman在其遗

Plants and plantlike organisms not only pervade nearly every habitat on earth, they are of central importance to every ecosystem and to human populations.

植物和类似植物的有机体不只是分布於地球的每一个产地，它们对於每一个生态系统及人口极具重要性。

This research consolidated that evolutionary models using w as an indicator of selective pressure provide valuable approaches for analyzing the adaption of protein-encoding sequences. Moreover, it also indicated that Polypodiaceous ferns responded to the terrestrial ecosystem changes initiated by angiosperms through molecular adaption of functional genes such as rbeL.

这些结果一方面显示了基于ω比值检验DNA编码序列分子适应的有效性，另一方面也提示水龙骨类可借助rbcL等功能基因的适应性进化，应对白垩纪被子植物引发的陆地生态系统改变。

For this reason, some basic studies, such as the definition of the environment, systematic analyses of the ecosystem of man-environment, deep thinking about environmental problems, navigative proposal of environmental construction, assessment of environmental awareness and ethics, comments on importance of morals and laws, philosophical ponderation of environmental values, and discussion on relationships between science, technology and the environment are previously conducted in the dissertation.

为此目的，本文首先通过对环境的基本概念的界定、人类-环境系统的层次分析、环境问题的理性透视、环境意识与生态伦理、环境价值的哲学思考、科学技术与环境、从环境保护到环境恢复再到环境建设等方面的讨论，向读者介绍了自己对环境的若干思想和认识，这也为之后的研究作了必要的铺垫。在上述讨论中，尤以经济与社会的层次分析、环境保护与环境恢复和环境建设战略辨析、环境道德与环境法制及环境价值的哲学反思等方面的论述最能体现作者独到的见解与理性。

Therefore,the aim of research fragibility of ecosystem in the karst region has important practic...

本文通过分析各生态因子对岩溶生态的作用来研究其脆弱性。

Its major protective objectives are primary Cyclobalanopsis phanera forest ecosystem and Presbytis francoisi together with its habitat.

以中亚热带原生性亮叶水青冈森林生态系统和黑叶猴及其栖息地为主要保护对象，同时保护分布于该保护区的一系列珍稀动植物和中亚热带湿润森林生态系统，归为森林生态系统类型自然保护区。

This paper studied water resource, plant and animal resource of Sanchahe area, assessemt the ecological environment quality and the ecosystem services value, and analyze the ecological suitability for founding the wetland park, the results were as followes:1. The plant species of Sanchahe area have been recorded 133, which belong to 48 families and 102 genera. Among them, 3 species of 3 families and 3 genera are pteridophyta, 1 species is gymmospermae.

本文调查研究了三汊河地区的水资源、动植物资源现状，评价湿地的生态环境质量，分析了湿地的生态系统服务功能类型和价值大小，对湿地公园用地的生态适宜性作出了分析，研究结果如下：1。

The ramet populations of the species at OSES and Inner Mongolia Grassland Ecosystem Research Station and those under conditions of monoculture and mixed with different species were compared.

对内蒙古沙地站和内蒙古草原站的单种沙鞭分株种群的比较和在各站对单种和混交沙鞭分株种群的比较发现，不同地点和在不同群落条件下的沙鞭分株种群在许多重要性状上都存在差异。

Ecosystem management is the main stream of natural resource management now. The focused works of EM are collecting spatial data by remote sensing, raser surveyors and permanent sampling plots which standard for each ecosystems. Experimental management and monitoring would proceed to do adaptive management for accomplishing the management objectives of forest health, productivity and biodiversity maintaining.

生态系经营是目前自然资源经营的主，而其工作的重点在於用遥航测及卫星定位系统、射测仪等测仪器收集资，经取样、选址具有代表性的长期生态研究区或永久样区，进试验性经营、监测与适应经营调整，以达到森健康、生产提高、多样性回的生态系经营目标。

Objective To discuss means of ecosystem cure in recrudescent or obstinate vaginitis and to protect the balance of vaginal microecosystem and get twice the result with half the effort in treatment.

目的 探讨复发性或顽固性阴道炎的生态治疗方法，保护阴道的微生态平衡，使治疗收到事半功倍的效果。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。