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干旱

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The project team has taken loess, lacustrine and peat sediments and tree ring as the research carrier, a systematic study has been carried on the warm phases of the different period (60-25 ka, last deglaciation, Holocene, the recent e few hundred years) and the last interglaciation on the basis of the extensive field investigation and laboratory analysis.

项目组以黄土、湖沼和树轮等沉积物为研究载体,经过大量的野外考察和实验室分析测试,对我国半干旱带末次间冰期和距今六万年以来不同时间段的温暖期(6万年到2.5万年、末次冰消期、全新世、最近几百年)进行了系统的研究,取得了一批重要的阶段性成果,确认了东亚季风气候和温暖期的不稳定性特征。

This low carbonate event may have resulted from changes of rainfall. During deglaciation, the dry climate caused a decrease in terrigenous sediment input. However, during Early-Middle Holocene, the rainfall, especially the heavy rain with higher erosions increased rapidly, leading to the increase of terrigenous sedimental supplies from South China mainland and Hainan islands.

在冰消期,出现干旱,陆源物质减少,而早中全新世的雨量,尤其是具较强冲刷能力的大雨量急剧增加,造成北部海南岛和华南陆地的冲刷增强,陆源物质供给增加,从而出现低钙事件。

Images of deglaciation, thawing tundra, coastal inundation, early bloom, drought, and dying coral bring the headlines on global warming to life. Images are available on global change themes in Antarctica, Alaska, coastlines, England, oceans, polar thaw, temperate zone, tropics, and weather. Copyright notices are conspicuously posted.

"全球变暖观察"是美国蓝色地球联盟的一个研究项目,该网站提供了有关全球变暖的图片和说明,包括冰川消退、苔原消失、海平面上升、干旱、珊瑚死亡等,这些图片通过不同的专题保存,比如地区、事件、温度带等。

Japan is notorious for its obsession with toilets and has notably come up with toilets which can warm, wash, blow dry and deodorize the bum.

臭名昭著的日本是其执着的厕所,并特别拿出厕所可以温暖,洗,吹干旱和deodorize的屁股。

Dry clime made depauperization and progradation of the lake, forming a great deal of thick particles sedimentation.

磁化率在底部和顶部大幅降低,底部对应湖区气候干旱,湖面萎缩时期,河流向前推进使大量粗颗粒沉积物增加稀释了铁磁性矿物的含量,顶部是由于富营养化使有机质和碳酸盐含量增加稀释了铁磁性矿物的缘故。

But most people reckon that the most likely explanation is that it was started by natural causes. For Southern California is an arid, desert landscape that was almost uninhabited for centuries.

但是大多数人认为大火最可能是自然燃起的,因为几百年来南加利福尼亚就是一片干旱而又几乎无人居住的沙漠地区。

Understanding whether climate changes such as desiccation may have played a role in this process is certainly an important objective of the project.

这个研究计划的一个重要目标,是了解气侯变化,如干旱在这个演变进程中所起的作用。

The studies were analyzed and discussed to elucidate further the mechanisms of adaptation to desiccation tolerance in R.

水分胁迫导致了红砂净光合速率的下降,但内在水分利用效率随着干旱程度却明显提高。

First, select four kinds of main risks source from bigly celebrate the main risk in region source, namely the flood, drought, sand-dust weather and petroleum pollution accident, etc. According to the different a request for to habitat, study this 19 kinds of landscapes ecosystem type of the Regional induce for 7 kinds of ecosystems system: Then the marsh of bulrush, lakes and reservoirs , salt alkali wasteland, prairie, island form wood, farmland, town. The difference is proceeded by characteristic according to each type ecosystem to the analysis of four kinds of main risks source, including the certain risk all rate, delimiting the space distribute, analyzing the risk strength to the receptor etc. At proceed the revelation the different from endanger to analyze the inside, this text borrows ecosystem index number that this index sign to reflect primarily habitat the ecosystem meaning of the type of habitat the different from position, with weak an index number to show the destructibility of the habitat, from but compute each ecosystem that is lost by ecosystem system an index number.

首先,从大庆地区主要的风险源中遴选出四种主要的风险源,即洪涝、干旱、沙尘天气和石油污染等;依据不同生物类群对生境的要求,将本研究区域的19种景观生态类型归纳为7种生态系统:即芦苇沼泽、湖泡库渠、盐碱荒地、草甸草原、岛状林、农田、城镇;对四种主要风险源的进行分析,包括确定风险概率,划定空间分布,对风险受体的作用强度分析等;在进行暴露和危害分析中,本文主要借生态指数这一指标来反映不同生境类型的生态意义和地位,以脆弱度指数来体现不同生境的易损性,从而计算出各受体生态系统的生态损失度指数;由于各主要风险物质对风险受体的作用强度是不同的,对形成区域性生态风险的作用大小也有差异,因此本文采用层次分析法对主要生态风险物质进行综合评价,并把判断矩阵排序权值的合理计算问题归为—非线性化问题,并提出用基于遗传算法(GA[5])的层次分析模型进行权重分析;进行风险表征,即综合前面两个阶段的信息,对环境中风险的性质和强度以及风险评价过程中不确定性问题进行分析与描述,并划分出五级生态风险区;最后,根据划分的五级生态风险区的特征,分别提出针对各生态风险区的生态风险管理对策。

Diarrhoea is forecast to rise 5% by 2020 in poor countries because of climate change.

同时,干旱也是造成非洲脑膜炎爆发的重要原因。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。