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Peanut or rice wereplanted in the large-scale weighing Lysimeter,pit plots,and standard runoff plots,wherehigh,moderate,and low soil moisture levels were designed as 3 treatments,assemblingwith some instruments such as time domain reflectometry,portable photosynthesis system,dew point microvoltmeter,and porometer.

季节性干旱缺水严重制约着我国红壤区农业的持续发展。1999~2000年在中国科学院红壤生态实验站,利用大型称重式蒸渗仪、测坑小区和径流小区,配合时域反射仪、光合蒸腾仪、水势仪及动态气孔阻力计等仪器,设计高、中、低3种土壤水分处理,进行了花生和早晚稻试验。

5KaB.P., transitional period to postglacial period, the climate being warmer but the climate was still cold and dry and intensive flucuted.

13-10.5kaB.P。,向冰后期过渡阶段,全球气候逐步转暖,但是总的看来气候仍然寒冷干旱,并且波动剧烈。

The dry, cold air that leaves the evaporator flows through the second path of the precooler, such that the dry, cold air is used to precool the incoming moist air.

干旱,寒冷的空气离开蒸发器流经的第二个路径的precooler ,如干燥,寒冷的空气是用来预冷传入的潮湿空气。

A radiant energy path means comprising a first optical fiber waveguide means and a second optical fiber waveguide means; sensing means prismatically configurated so as to provide a direct reflective path from said first waveguide means, through said sensing means, to said second waveguide means, said sensing means being fabricated from material which absorbs a portion of a monochromatic radiant energy transmitted along said direct reflective path through said sensing means as a function of temperature; a monochromatic radiant energy source means optically coupled to said first optical fiber waveguide means, thereby introducing said monochromatic radiant energy into said first optical fiber waveguide means; and detecting means optically coupled to said second optical fiber waveguide means for detecting the intensity of the monochromatic radiant energy transmitted along said direct reflective path through said sensing means, the detecting means correlating the intensity of the transmitted monochromatic radiant energy with the temperature of the sensing means.

温度传感器组成一个联合:辐射能走了一首手段包括光纤波导手段和光纤波导第二手段;硒干旱prismatically手段配置以提供直接从反光路波导首次表示,次传感手段粗糙说,第二说波导手段飒传感手段伪造身份证从物质吸收了部分单色辐射能直接传送沿线说重 flective路径通过说温度传感功能为手段;一单色辐射能来源地说,就是先光光纤耦合波导手段次 ereby介绍说,首先说成单色辐射能光纤波导手段;一丁光学检测手段波导光纤耦合说二是加大检测手段的单色辐射恩顺沿说传染途径通过直接反光说传感手段,次五是加大检测手段的传播相关单色辐射能与温度传感手段。

Heat and drought are threatening some of the America's most producted productive farmland.

高温与干旱正威胁着美国最丰产的一些农场。

As a result,this experiment with wild Prunus mongolia Maxim used to study drought stress in different ecological conditions,the impact of the body of its PAL and C4H activity.

因此,本试验以野生蒙古扁桃为试验材料,研究干旱胁迫对其在不同生态环境条件下体内PAL和C4H酶活性影响的变化。

In this thesis, the adaptive strategies of the psammophyte plants in Otindag Sandland to the sand moisture, sand burial and environmental heterogeneity are investigated using both field and greenhouse experiments.

本文应用实验生态学方法研究了沙地植物对水分、沙埋和养分异质性环境的生态适应对策。浑善达克沙地属于半干旱区域。

Love, make the society go forward one big step, want ~only everyones all not so selfish, want to be also to offer some benevolence for the other people, so, even at dry of season, can also obtain storm sewage to moisten, even at cold of winter, also is feel obtain is bright with warm,the quare benevolence is the one sunlight, make individual, society, the world farewell shadow and chill, feel bright with warm.

爱,使社会前进一大步,只要人人都不那么自私,想想也为别人奉献一点爱心,那么,即使在干旱的季节,也能得到雨水的滋润,即使在寒冷的冬天,也是能感受得到光明和温暖、所以爱心是一片阳光,使个人,社会,世界告别黑暗和寒冷,感受光明和温暖。

The NCEP data are used to construct a time series of a radiational indicator of drought: daily net radiation and rainfall data for each NCEP grid are integrated over a period of eight days to match the temporal sampling interval of MODIS data products.

首先利用NCEP 再分析数据建立了干旱度因子的时间序列,为了与MODIS fAPAR 具有相同的时间采样间隔,由NCEP的日净辐射和日降雨量得到每8天的平均净辐射和8日降雨的和。

The reason for this was,first,that the Nile brought water to a rainless desert and,second,that once a year,the river overflowed it anks,leaving,as the water went back,a new layer of fertile soil.

这其中有两个原因:其一,尼罗河为干旱的沙漠带来了水源;其二,每年,尼罗河水都会溢出河岸,流走;水再次退回河中,肥沃的土地形成了。

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