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Using the Pearson correlation coefficient and Spearman rank correlation coefficient, the interspecific association of 13 species in different communities in Beijing mountainous area were investigated, and the niche breadth and niche overlap of 13 species were studied.

应用Pearson相关系数和Spearman秩相关系数检验,研究了北京山区天然林群落13个乔木种群的种间关联性,并对13种植物种群的生态位宽度和生态位重叠进行研究。

In addition to provide lodging service, The Lunarian House also provides package tour such as intertidal zone tour. There will be a professional and licensed eco-tourism guide accompanied along the intertidal zone tour, so that travelers can gain more ecological knowledge.

除了提供一般住房服务外,在这里还可以选择套装行程安排,带您走一趟潮间带,体验当地的生态景观,由於管理民宿的每一个人都领有大鹏湾生态旅游专业解说员的证照,因此游客们更能从中获得丰富的专业知识。

For those who want to go on a profound eco-tour, you can choose to stay at The Lunarian House, which is just a 3-minute ride from the terminal. There are ten theme suites; the distinction between each suite is the rich color. Each suite has a separate bathroom facilities, LCD TV, hair dryer and lovely Teddy bear. Guests can overlook the sea and observe star from the balcony.

而想要规划一趟生态深度之旅的游客,则可以选择离观光港码头仅三分钟车程的月掬生态旅游民宿,里头共设置有10间主题套房,并以丰富的色彩做区分,每个房间内皆有独立的卫浴设备、液晶电视、吹风机及可爱的熊熊玩偶,在户外的月掬平台上,还可以让您悠哉地观星、观海,沉浸在大自然中。

Most importantly, our team are famous for much research on ecology, physiology,molecular phylogenesis of bats at home and abroad, we have gained much originative result in this field, and we firstly found and studied the third piscivorous bat, Myotis ricketti.We provide evidence that the species Myotis ricketti is piscivorous, and close negative relationships were found firstly within Rhinolophidae and Hipposideridae between call frequency and ear length. Some species of taxology status in rhinolophidae were studied by molecular phylogenesis; phylogenesis relationship between rhinolophidae and hipposideridae and different populations of miniopterus schreibersii were also studied; we also studied Social structure of Tylonycteris pachypusa and T. robustula and the isolating mechanisms of ecological niches.

在蝙蝠生态、生理、和分子系统进化领域完成了大量研究,奠定了本项目组在此领域中的国际地位,首次在国际上证实性发现并系统研究了世界上第3种食鱼蝙蝠--大足鼠耳蝠;首次提出菊头蝠科蝙蝠回声定位叫声频率与耳长负相关;利用分子系统学研究方法澄清菊头蝠科内一些种的分类地位,菊头蝠科和蹄蝠科的关系,以及普通长翼蝠种群间的系统进化关系;系统地研究了扁颅蝠属仅有两个姐妹种的社会组织结构和生态位分化。

Species-pairs were positive correlation,including 10 species-pairs were higher significant positive correlation and 24 speciespairs were significant positive correlation, and 263 species-pairs were negative correlation, including 8 species-pairs were higher significant negative correlation and 28 species-pairs were significant negative correlation, which were tested by Spearman' s rank correlation coefficient.

正负相关比为0.7643,显著种对占总对数的15.05%,群落优势种种间多呈不显著关联。2)按照31个建群种和优势种对环境的适应方式和主导生态因素,它们被划分为2个生态种组:芦苇组和早熟禾组。3)关帝山撂荒地植物群落以退耕还林的先锋物种为主,表明植物群落处于森林植被恢复的初期演替阶段。

It varies with time, rareness and social attribute of the resources. So, the value of coefficient K shall be adjusted according to the change of environmental resources with time, location and changing of social environment.

生态环境资源具有时间性、稀缺性和社会属性等特点,因此,K值反映生态环境资源随时间、地点和社会环境的变化。

In recent years it has been exploited to be a famous scenic spot. To avoid vegetation degradation resulting from human activities and strengthen plant protection, Carpinus turczaninowii communities in great valley were selected as our research subject. The species diversity, interspecific association and correlation, niche breadth and niche overlap in these communities were studied using quantitative methods.

为了加强对该地区植被的保护,避免因人为干扰而导致的植被破坏和退化,本文以太行山南段的小叶鹅耳枥群落为研究对象,在分析了群落主要特征的基础上,应用数量生态学方法,分别从群落的物种多样性、优势种群的种间关系和生态位三个方面,客观定量地分析了植物群落的生态关系。

The current soil utilization and the relevant problems are analyzed, and measures about sustained agricultural development in Zhangjiakou are proposed: planting trees, create an ecological protector for the Beijing,Tianjin and Hebei; adjust the structure of crop, organize the production of output in different regions; adjust the structure of droves; utilize the irrigable land nationally, develop no-public Hazarded vegetable production intensively and son on.

本文通过对张家口地区的土地利用现状的调研与评价及其农业中存在问题的分析,提出了本地区农业可持续发展的对策:乔灌成网,构筑京张承生态三角,建设京津冀北地区的生态屏障;调整作物生产结构,组织区域间产品互补生产;调整畜群结构,发展舍饲生产;合理利用水浇地,集约生产错季无公害蔬菜;增施有机无机肥料,培肥土壤肥力。

Analyzed the intraspecific and interspecific relationship of Bruguiera gymnorrhiza and Rhizophora stylosa with commonly used niche calculation formula and Hegyi single-tree competition index mode, the results showed that they had extreme similar niche breadth and high value of the niche overlap index.

文章采用常用的生态位宽度、生态位重叠计测公式和Hegyi竞争指数模型,研究木榄和红海榄种内以及种间的相互关系。

On such a basis, it concretely discusses the effects of the cultivation on ecological environment and holds the view that the damage of the original hydro geological environment by over-cultivation in South-East China results in the serious situation of "no reservation of water and no irrigation when drought" and thus greatly increases difficulties in flood prevention. Local governments through ages act on their own way without cooperation among diked paddy-fields in different areas and therefore local floods take place every year due to breakdown of the dikes. The great shrinking of lake areas because of too much reclamation affects the function of lakes in adjusting water volume and destroys ecological conditions of the area, leads to frequent disasters.

在此基础上,具体探讨了圩田开发对生态环境所造成的影响,认为因过渡围垦破坏了江南地区原有的湖泊河流水文环境,造成&水不得停蓄,旱不得流注&的严重局面,这便给圩田大大增加了防患水灾的压力;历代地方政府在圩田管理方面也是各自为政,各地圩田缺乏相互间的协作,使因破圩而形成的局部水灾年年有之;大量构筑圩田,使湖泊面积大为缩小,影响其调节水量的功能,破坏了本地区的生态条件,致使灾害频频发生。

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