演替

Therefore, attention should be paid to both invasive species and native weeds in managing dominant herbaceous species in early successional communities.

因此，对演替早期群落中草本植物的控制与管理应同时注意外来入侵物种与本地杂草。

At present, under the guidance of systematology, information theory and cybernetics, people should obey eco-environment succession pattern so as to take aim at well circulation of eco-environment and harmonious development between man and earth relations.

目前，要在系统论、信息论、控制论的指导下，遵循生态环境演替规律，以实现生态环境良性循环以及人地关系的和谐发展为最终目标。

The main physical processes in the East China Sea include the Kuroshio and water flux of the Taiwan strait and Tsushima strait, the thermohaline structure and its seasonal variation by exchange of heat and water on sea surface and mixing of tide, as well as the tide and tidal current, and circulation and its seasonal variation.

黑潮及其台湾海峡、对马海峡的水体输送；通过海面热和水气交换以及潮流混合作用下的海水温、盐分布与结构的四季演替过程；潮流潮汐过程；环流的季节性变化等。

The plant community composition changed and the community coverage increased over the wetland succession from primary swamp, through swampy meadow, to meadow. The number of associated species increased, while the dominant species abundances decreased. Through succession, the content of soil organic matter and total nitrogen declined. In contrast, the soil enzyme activity of catalase, protease and invertase increased; however urase declined.

随着湿地原生沼泽向沼泽化草甸、草甸的演替，湿地植物群落盖度增加、物种组成增多，群落优势种优势度减小，伴生种数量增加，植物多样性呈增加趋势；湿地土壤有机质、全氮含量不断减少，过氧化氢酶、蛋白酶、蔗糖酶活性增加，脲酶活性降低。

These species represent 13 extant species vegetatively present in the community which and 17 species of earlier, seral species.

种子库中有现存植物种子13种，群落演替前期各阶段产生的种子17种。

With the whin growing rapidly,some areas have formed or is coming into preponderant species gradually and caused the drugged grassplot.There is a phenomenon that browsed critter are died because of poisoning.It seriously threatens the grassland agriculture and has made typical"ecological-economic sickness"in above district.

近年来棘豆迅速蔓延生长，在有些地区已经或正在向优势种群演替，造成草地毒草化，出现放牧家畜中毒死亡现象，严重威胁草地畜牧业，已形成了典型的"生态经济病"。

The study also suggests white-headed leaf-monkey will prosper in case the succession keeps processive.

研究还表明，只要生境植被保持良好的向上演替，白头叶猴也必将得到有效的保护。

After elementary surveying on the status quio of wilding vegetation resources in Maowusu Sandy Land, the paper analysis's the succession law of plant community and the evaluates exploitative situation of wilding vegetation resources.

根据对毛乌素沙区的实地考察，初步调查了该区的野生植物资源状况，结合野生植物资源类型的调查，对其沙生植物种群的演替规律和开发利用进行了分析和评价。

The result indicated that: with the change of ecological factors and intensification of human activities,strong stability of grassland community structure of the local alpine meadow type along the highway in this region was found,proportion of medium xerophilous、rhizomous grass increased;alpine grassland community had relatively low stability,grassland community successed naturally to adapt to the new environment;...

结果显示：随着生态因子发生变化和人类活动的加剧，该区公路沿线高寒草甸类草地群落结构表现出了较强的稳定性，中旱生耐旱的根茎型禾草比重有所增加；高寒草原植物群落稳定性相对较差，草地群落为适应新的生境而发生了自然演替；沼泽化草甸亚类草地植物群落中群落伴生种的种类增加，优势种嵩草属植物在群落中的比重有所下降。

The succession direction of this kind of state is adumbrative different standing forest can produce differentiation.

这种状况预示着不同林分的演替方向会发生分化。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了