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community succession中文是什么意思

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用"community succession"造句"community succession"怎么读"community succession" in a sentence

中文翻译手机手机版

  • 群集消长;群集演替
  • 群落演替

例句与用法

  • Phytoplankton community succession of freshwater pool of litopenaeus vannamei bonne in zhuhai area
    珠海地区凡纳滨对虾淡水养殖池浮游植物群落的演替
  • Analysis of vegetation characters and preliminary study of plant community succession on the copper tailing yard in pengzhou
    四川彭州铜尾矿库植被特征分析与植物群落演替初探
  • The results as following : i ) totally , species diversity increased gradually with the development of community succession
    其研究结果如下: 1 )物种多样性的变化总体上是随着群落演替的发展而逐步增加的。
  • The influence to the soil trait and countermeasures of durable evolutional development by the forest community succession in simian mountain scenic spot in chongqing
    四面山森林群落演替对土壤特性的影响及可持续发展对策
  • Nowadays , its determination usually depends on theses indicators such as insect community succession on carrion , insect morphological changes and development span
    它的推断以往主要依据尸体上昆虫的区系演替、形态变化,及发育历期等。
  • The objective of this research is to test the rcc from ] st to 6th order streams of changjiang river watershed in southern mountain area of anhui province , to explore the function and structure of macroinvertebrate community succession rule of the river . the changjiang river water quality asse ssment is carry on by comparison of the community characters of the point - pollution or non - point pollution sites to the hypothesized rcc , the macroinvertebrate community structure indices and bi index were used in the assessment
    本文对阊江河底栖动物群落结构和功能进行了系统研究,运用河流连续性理论对该河一至六级支流各取食功能团比例的演替规律及毛翅目成虫的群落结构进行了比较分析,并通过计算底栖动物群落结构指数和bi指数,对该河进行了水质评价。
  • The paper studied three aspects of extracelluar enzymes in sediments of the tidal flat wetland , namely 1 ) the distibution of five sorts of extracellular enzymes in sediments in the east end of chongming island along the elevation gradient or community succession series , the relationships between the activities of enzymes and the ecological factors , and functions of extracellular enzymes in the process of community succession ; 2 ) the effects of the heavy metal ions and edta on the activity of alkaline phosphatase in sediments of the east end of chongming island by adding and removing of heavy metal ions , discussing whether the activities of extracellular enzymes could be taken as the indicators for the environmental status ; 3 ) the variations of the activities of extracellular enzymes in sediments in the east end of hengsha island after the discarding clay
    本文以长江口典型湿地?崇明东滩为例,首次研究了沿高程梯度或沿植被演替系列沉积物中碱性磷酸酶等五种胞外酶活性的空间分布规律,分析了胞外酶活性与环境因子的相互关系及其产生机制,讨论了胞外酶活性在湿地植被演替中的作用。同时以崇明东滩沉积物为对象,运用重金属离子的添加和去除等方法,研究了重金属离子对沉积物中碱性磷酸酶活性的影响,利用胞外酶活性的变化探讨了崇明东滩重金属污染的状况。此外,本文还研究了横沙东滩吹泥试验工程对沉积物环境因子和胞外酶活性的影响并进行了对比分析。
  • Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio . the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong , and distribution is wide . meanwhile , go rdonia acuminata , castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm , their distribution is limited . especially , the ju venile of pinus massoniana specialized outstandingly . with the devlopment of pinu s massoniana , which is the pioneer population in mt . jinyun , the environment become s unfit to it ' s juvenile . it turns to needle and evergreen broad - leaves mixed fo r est . because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis , gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators . the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession . the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession
    对缙云山森林植被的4个优势种群3个年龄级生态位宽度进行了研究.结果表明,川灰木利用资源的能力最强、分布广,为典型的泛化种.大头茶、栲树、马尾松对资源的利用在一定程度上特化,分布上有一定的局限性.马尾松的中龄组与幼龄组特化现象十分显著.缙云山森林植被的先锋种马尾松的发展,导致环境的改变不适于其幼龄个体的生长,群落演替到针阔叶混交林阶段,最后发展为以栲树等为建群种的常绿阔叶林.种群的资源利用能力,是种群分布与群落演替的内在原因,光因子和营养元素(如n )是群落演替的主要外部动力
  • 3 . study on vegetation succession : by using place to make succession , instead of using time , we have a useful try to hope to support helpful use for reference . on the other hand , we reveal actuality and stages of community succession of midland of taihang mountain to presume the succession direction in the future
    植被的演替研究:本文对用空间代替时间的方法进行演替研究时,选取样地应遵循的原则进行了有益探索,以期对今后的研究提供有益借鉴,并且科学揭示了太行山中段地区的群落演替现状和各群落的演替阶段,对各演替阶段今后的演替方向作出推测。
  • The vegetation types are described of baishanzu national nature reserve in qingyuan county , zhejiang province . the surveyed area covered25thousand hm 2 in which27sample plots with20m 20m each were selected . based on the importance value of plant species , six vegetation types were devided , viz . evergreen broadleaved forest , evergreen and deciduous broadleaved mixed forest , coniferous and broadleaved mixed forest , coniferous forest , mountain dwarf forest , and mountain shrub and herbosa . floristic composition , community structure , and trend of community succession of each vegetation type are described
    对近20年来多次调查的资料进行系统整理,将百山祖植被主要划分成6个植被类型:常绿阔叶林、常绿落叶阔叶混交林、针阔叶混交林、针叶林、山地矮林和山地灌草丛,其下可分为22个群系;同时对群落的种类组成、结构和演替趋势作了概述。
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