干旱

They do not complain of this dry, desolate land nor do they bewail the fate that brought them here.

他们没有抱怨土地干旱荒芜，也没有哀泣为何命运把他们安置在这里。

The result shows, grass of Sikkim small hole is temporary decline Yan period with permanent decline water content of Yan period soil is respectively 7.06% be in temporary decline with 6.20%; the Sikkim of Yan period is small after water of Kong Cao answer bibulous and rapid, decline Yan condition is eliminated gradually, appearance of aftertreatment group of answer water 6 H and contrast active of basic consistent;SOD is during threatening processing with markedder than notting have to taking a picture change, the ascendant;CAT that there is certain range after answer water and POD active are in threatening during after rising first, drop, all remarkable prep above contrasts level, and the active;MDA content that still keeps taller after answer water as the extension of time of arid and threatening processing mushroom, to threatening the 8th climate reachs maximum, content of the MDA in the lamina after answer water drops quickly, arrive the 5th day after answer water, content of the MDA in threatening group lamina is adjacent already contrast level.

结果显示，锡金微孔草暂时萎焉期和永久萎焉期土壤含水量分别为7.06%和6.20%；处于暂时萎焉期的锡金微孔草复水后吸水迅速，萎焉状态逐渐消除，复水6 h后处理组外貌和对照基本一致；SOD活性在胁迫处理期间和对照相比无显著变化，复水后有一定幅度的上升；CAT和POD活性在胁迫期间先上升后下降，均显著高于对照水平，且复水后仍然保持较高的活性；MDA含量随着干旱胁迫处理时间的延长而迅速增加，到胁迫第8天时达到最大值，复水后叶片中MDA含量迅速下降，到复水后第5天，胁迫组叶片中MDA含量已接近对照水平。

The vulnerabilities of this system have been on display for the last several years, as a deep and persistent drought in northern Mexico, combined with an inadequate binational water management framework, led to a serious binational dispute over Mexico's water delivery obligations under the 1944 Treaty.

过去这几年，此系统已显得脆弱不堪，北墨西哥持续严重干旱，加上两国水源管理框架的不恰当，导致两国针对1944年条约中所规定墨西哥的供水责任起了严重争端。

Firstly, the effect of multiple ecological factors on biological characteristics of Arthrobacter population was nonsymmetrical in heavy metal tailing soil, and bacteria tend to regulate the INC relatively to IDC when facing the natural selective pressure.

种群在高浓度Pb选择条件下降低的遗传多样性表明它们在适应重金属污染时付出了进化代价，抗重金属在某种程度上也降低了菌株对干旱胁迫的耐受。

We analyse the adjustment of the birch reeds to the cold and drought from the conductance, K+ filtrate, SOD, POD, MDA, content of the water-soluble protein, penetration of the bioplasm film, photosynthesis and fluorescence.

3通过对欧洲优良无性系在寒冷、干旱的胁迫下电导率、钾离子的渗透率、酶促防御系统，膜质过氧化物，可溶性蛋白含量、原生膜透性和光合、荧光等生理指标的变化，对欧洲白桦优良无性系苗期的适应性进行分析。

Due to their modes to adapt to arid condition, ecological and physiological responses and the changes of structure are all different, but their mechanism to adapt to the sandy soil water changing is consistent, consequently they have more chances to exist in the entironment what has biggish annual wave of climate comparing to mostly plants that bourgeon in early spring.

由于对干旱生境的适应方式各不相同，其生理生态反应和结构的变化因种而异，但对沙土水条件的适应机理却是近似的，从而在年际气候波动较大的生境中，这几种植物较早春期萌发的大部分植物幼苗有较多的存在机会。

PmMYB has the highest similarity (84%) with MYB18 gene of rice, whereas 46% and 41% with barley and corn, respectively. Semi-quantitative RT-PCR confirmed that PmMYB was upregulated by water stress and re-watering in broomcorn millet.

通过半定量RT-PCR对其表达模式分析表明，该基因在水分胁迫和干旱后复水条件下上调表达，与糜子抗旱节水紧密相关。

Dr Buckley's tree cores show that the 18th-century drought in Siam lasted 30 years or more.

Buckley博士的树核心表明， 18世纪的干旱在暹持续达30年或以上。

Western and other dry summer areas are suited to Buffalo grass, Tall Fescue, Bermuda and related varieties that are thicker.

西欧和其他干旱地区，夏季适合布法罗草，苇状羊茅，百慕大和相关的是厚品种。

Then the plows went in and ripped off the protection of the buffalo grass and opened the helpless soil to quick water and slow drought and the mischievous wind that roamed through the Great Central Plains. There has always been more than enough desert in America ; the new settlers, like overindulged children, created even more.

其后的耕犁又强行剥去了美洲野牛草皮对土壤的保护，暴露的土壤饱受湍急的水流、缓漫的干旱和横扫美洲中央大平原的狂风的无情肆虐，在美国，沙漠已经多的不能再多了，而新的定居者们就象被宠坏了孩子们，又创造了更多的沙漠。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。