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地带性

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First of all, according to analysis the effect of ecosystem during the water cycle, the type of ecological water demand in wetland was clarified which is an azonal ecological system supported by the runoff with the feature of azonal.

通过分析湿地水文循环的生态效应,湿地是由径流支撑的非地带性生态系统,具有泛区域特点,湿地生态需水须要在研究湿地径流场与生物多样性变化基础上进行。

Dark brown forest soil in Taoshan are 5 subgroups, 9 soil geneus and 16 soil species in total; there are 4 soil types and 9 subgroups of azonal soil.

该地区为暗棕壤,共有五个亚类,九个土属,十六个土种;非地带性土壤有4个土类、九个亚类。

The results suggest that the annual ESR quantity has clear latitudedependent variation characteristics and a progressive increase trend from north to south. The annual ESR quantity azonal distribution characteristics appear in mountainous areas owing to the effects of topographical factors such as aspect, slope and terrain intershielding.

结果表明:我国年天文辐射总量有明显的纬向分布特点,随着纬度的降低,年天文辐射总量由北向南增加;由于受坡向、坡度和地形遮蔽因子影响,山区天文辐射表现出非地带性分布特征。

The results showed:①the communities that stipa baicalensis is edificator had the highest species diversity, and the idea that stipa baicalensis communities were the local zone vegetation was supported;②the majority of studied communities were unsaturated in the species diversity, and the species diversity had a tendency to increate with the improvement of soil environment;③the relation of species diversity to community productivity was a one-humped function, that is, the species diversity of mediation productivity was highest;④the species diversity under intermediate disturbance was highest, and the intermediate disturbance hypothesis was supported;⑤the content of potassium in soil had probably an important function, or was an important following factor in the types of grassland community;⑥a new hypothesis on the forming mechanism of species diversity of community, Small Scale Competition and Random-Patch Dynamic Hypothesis, was put forward boldly.

通过上述研究分析得出如下结果:①以贝加尔针茅为建群种的群落物种多样性最高,从物种多样性角度证明该群落类型最适应本区气候和环境条件,应是本区的地带性群落;②绝大多数群落的物种多样性处于未饱和状态,随土壤环境的改善呈明显的增加趋势;③物种多样性与群落生产力呈单峰函数关系,即在中等生产力水平时物种多样性最高;④放牧中等干扰水平物种多样性最高,支持Connell的中度干扰学说;⑤偶然发现土壤钾含量可能在草地植被类型分化中起到重要作用,至少是一个重要的伴随因子;⑥大胆提出了群落物种多样性构成机制的新学说即小尺度竞争随机斑块动态学说。

Worked out a concrete goal for biodiversity conservation in the area, including to maintain and protect the speciality and intactness of the combined ecosystem of rivers and lakes, to protect freshwater resources, to maintain and restore the natural hydrolgical process of the river system of the area, to protect the core species and their habitats efficiently, to protect and restore the typical zonal vegetation (the subtropical evergreen broad-leaved forest), to forbit introducing the invasive species, and to eliminate or control the settled invasive species.

制定了长江中游生物多样性保护的具体目标,即维持和保护江湖复合生态系统的独特性和完整性;保护淡水资源;维持和恢复长江中游水系的自然水文过程;有效保护核心物种及其栖息地;保护和恢复典型的地带性植被;禁止引进入侵性物种,消灭或控制已经定居的入侵性物种。3。

With the transition of geomorphological belts,most of the distribution patterns of populations were spatially homogeneous.

灌丛植被在新疆一般不具有地带性意义,但却广泛分布于山地、河谷和平原,尤其以柽柳灌丛分布最为广泛[1]。

The infrared spectra of latosol and red soil fall into the kaolinite spectrum. On the other hand, the infrared spectra of yellow brown soil, lou soil, heilu soil, loessal soil fall into the montmorillonite spectrum.

结果表明,砖红壤、红壤红外光谱属于高岭石型图谱,显著的3695,3620,1035cm^(-1)峰以及3527cm^(-1)峰可作为用红外光谱判断热带、南亚热带地带性土壤的特征峰。

The horizontal zonal pattern of Theaceae plant species richness in Guangdong Province and its relation to the environmental factors were studied. Both data of species distribution and environmental factors were tabulated based on a digitized map of Guangdong Province gridded at 0.5° latitude ×0.5° longitude.

通过分析广东省山茶科125种植物物种丰富度水平地带性格局,并对其进行环境解释,利用软件DMAP将广东省划分为72个0.5°×0.5°的经纬度网格,并将基于网格的物种丰富度表现出来,同时利用箱形图分析其水平分布格局。

Macropore characteristics of main type soil--krasnozem, crimson loam, phaeozem and brown loam was firstly studied using soil section photography on the horizontal and vertical profiles in order to farther investigate the preferential transportance of soil water and solute.

中文题名土壤大孔隙特征的研究副题名外文题名 Characterizing macropores in soil 论文作者刘伟导师区自清研究员学科专业土壤学研究领域\研究方向学位级别博士学位授予单位中国科学院沈阳应用生态研究所学位授予日期2001 论文页码总数165页关键词土壤物理土壤大孔隙馆藏号BSLW /2003 /S152 /2 本文应用双剖面土壤切片成像法结合土壤优先水流穿透曲线,首次研究了4种主要地带性土壤:红壤、赤红壤、黑土和棕壤的大孔隙特征。

But at the same time,itexisted in the fact that the water environment was amended,showingthat many lakes and ponds such as Hong Jiannuo Lake appearing andexpanding in the end of Qing dynasty.4.The vegetation in Mu Su Desert passed through several phases inhistorical times,the main phases are:the species composition ofvegetation community was gradually simplified;xeromorphous and sandyplant increased;the status of desert vegetation rose evidently.However,the change of vegetation zonation means that forest plainchanged into drought plain did not occur.5.The main modality of Mu Su Desert land degenerating has beendesertification,it had occurred before human activities intervenedintensively.Two-thirds of land has been desertification at variousdegrees.

但与此同时,也存在着局部的水环境改善,突出表现为红碱淖等湖沼在清末民初的出现和扩大。4、毛乌素沙地的植被在历史时期经历了群落种类组成渐趋简单、旱生沙生资源植物增加、荒漠植被地位明显上升等变化,但是并不存在由森林草原到干草原的地带性植被变化。5、沙漠化是毛乌素沙地土地退化的主要表现形式,在人类活动强烈干预以前就存在着,秦汉以来,有大约2/3的土地发生了程度不同的沙漠化。

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推荐网络例句

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。