查询词典 ecology

The 21st century is a century of life science,the mathematical biology advanced rapidly, and the study in determinate system is perfect. In face,the species ecology systems are often subject to ,some uncertain factors,white noise,whether the presence of such noise affects these results that we have obtained has received exten sive attention ,which makes the study about stochastic system more and more important.

21世纪是生命科学的世纪，生物数学的发展突飞猛进，百花争妍，其中对确定性系统的研究已经较为完善，而实际上的种群系统常受到一些不确定性因素的干扰，即白噪声的干扰，研究白噪声的存在是否影响种群生态系统以及是否使原有的结果发生变化已受到广泛的关注，这就使对随机系统的研究显得尤为重要。

Based on the status of agricultural structure this paper indicated the necessity of agricultural structure and put forward the aim of which was to change the grazing stock raising into the artificial meadow structure around oasis marginal belt of diluvial fan in order to restore mountainous ecosystem and play the function of ecosystem service while getting to the good of eco ecology .

本文在论述天山北坡农业结构现状的基础上，指出其农业结构调整的必要性，提出了农业结构调整的目标就是改变目前天山的放牧性畜牧业，恢复山地生态系统，发挥山地的生态服务功能，在绿洲－扇缘带建立新的草地农业的产业结构，实现生态经济双赢；并提出了以棉粮为主转向实行草棉粮的综合性的改造以及从淡水绿洲转向咸水绿洲的农业结构调整的战略对策。

Based on the status of agricultural structure this paper indicated the necessity of agricultural structure and put forward the aim of which was to change the grazing stock raising into the artificial meadow structure around oasis-marginal belt of diluvial fan in order to restore mountainous ecosystem and play the function of ecosystem service while getting to the good of eco-ecology. Also, two strategic countermeasures for the agricultural structure were presented which were that implementing integrated alteration from cotton-grain to grass-cotton-grain and from fresh water oasis to salt water oasis respectively.

本文在论述天山北坡农业结构现状的基础上，指出其农业结构调整的必要性，提出了农业结构调整的目标就是改变目前天山的放牧性畜牧业，恢复山地生态系统，发挥山地的生态服务功能，在绿洲－扇缘带建立新的草地农业的产业结构，实现生态经济双赢；并提出了以棉粮为主转向实行草棉粮的综合性的改造以及从淡水绿洲转向咸水绿洲的农业结构调整的战略对策。

Then the article starting from the activity, which relates the person with exterior nature,namely the human society work practice, elaborates the nature which worked as the foundation of humanity labor,and the human could not leave it and are bringing it into line with the nature as the work essential factor of labor process; The realistic nature similarly also cannot leave human as persons work creation, and this is the question of two aspects.The thesis has analyzed the work and natural relations in the agricultural society and in modern industry society ,and obtains the conclusion that the different ecology values can form under the different production method. This article criticizes disassimilation work in the capitalist society not only causes the disassimilation relationship between the human, but also creats the disassimilation which human and nature related, and proposes the communism society not only is the society in which the contradictory exploitation between human and nature is solved, and the contradictory relation between human and nature is also solved.

的结论；其次从人与外部自然相联系起来的是活动，即人类社会劳动实践出发，论述了自然界作为人类劳动的基础，人类须臾离不开它，人是把自然界作为劳动的要素而纳入自己的劳动过程的；现实的自然界作为人的劳动创造同样也离不开人，这一个问题的两个方面，并分析了在农业社会中劳动与自然的关系和近现代工业社会中劳动与自然的关系，得出在不同的生产方式下会形成不同的生态价值观的结论，批判了资本主义社会的异化劳动不仅造成了人与人之间关系的异化，还造成了人与自然之间关系的异化，提出共产主义社会不仅是人与人之间对立矛盾的剥削与被剥削关系真正解决的社会，也是人与自然之间破坏与被破坏的矛盾关系真正解决的社会的论断。

Based on the Sino-US Forest Health Cooperation Program, along with review on lots of foreign and domestic literatures, the historical trends of attributes of forest and the concept of health in the modern society are discussed and the concept of forest health is redefined, combining the methods of logic discursion with demonstration analysis, qualitative analysis with quantitative analysis and the ecology with other related science from point view of macro and middle scope aspects.

本研究依托中美森林健康试验示范区建设，结合大量的国内外文献分析，从中观和宏观角度，采用逻辑推理与实证分析、定性分析与定量分析、生态学和其他学科相结合等方法，讨论了森林属性的历史演变和现代健康观，对森林健康进行了重新的定义，首次尝试建立了基于中国林情的森林健康基本理论体系，构建了森林健康的评价方法，结合文献研究对城市森林、农田防护林、马尾松林、笋用雷竹林的健康评价进行了理论验证，并通过江西信丰崇墩沟流域森林健康评价进行了案例分析。

Reduces a row of main object still is the developed country, regarding carbon and so on China collects the potential to be huge, the water cycle influence giant country, then must collect through the ecology protection construction increase carbon, and strengthens the water conservancy facility display water cycle repair climatic change the function.

减排的主要对象依然是发达国家，对于中国等碳汇潜力巨大、水循环影响力巨大的国家，则要通过生态保护建设增加碳汇，并加强水利建设发挥水循环修复气候变化的功能。

The development of urban green space distribution is ecology foundation of urban construction.

城市绿地建设是城市建设的生态基础，对于加快生态化城市建设具有重要的作用。

The paper adopted the method of Braun-Blanquet school of vegetation ecology. Typical plots were chosen in order to investigate the vegetation type of the main parks in Kaifeng city. The analyses were based on defining the least area of communities with the usage of abundance dominancy and combining cover coefficient.

采用植被生态学中法瑞学派的研究方法，在确定群落最小面积的基础上，选取典型样地，运用多优度指数并结合盖度系数对开封市铁塔公园、禹王台公园、龙亭公园的植被类型、生境特点及各类型的群落生态学特征进行较为详细的研究。

In the research area, Barkol Lake Area, situated in the Barkol Basin of Xinjiang,China, 7 landscape elements were derived from pseudo color Landsat TM in 2000 by image enhancement and interpretation. Based on GIS and theory of the landscape ecology, secelected fractal dimension,separation, diversity Shannon-weaver, degree of consistency, degree of fracture and dominancy index, analyze the spatial pattern of the landscape.

运用景观生态学原理，借助地理信息系统，以LANDSAT TM标准假彩色合成影像数据作为主要信息源，经过图像增强处理和解译，结合各类地理统计数据，将研究区划分为7个景观类型，采用分离度、景观分维数、多样性、均匀性、破碎性、优势度等项景观指标分析了研究区的景观空间格局特征。

In a word, dormancy plays an important role in ecology and evolution of Tardigrada.

总之，休眠现象在缓步动物的生态和进化方面具有小可估量的作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。