干旱

One day, two Ankylosaurus went to find food in the dersert.

一天，两只甲龙在干旱的沙漠里找吃的。

Drought caused photoinhibition and increased the damage of reactive oxygen. Antioxygenation of fast-growing 107 was stronger than Populus pseudo-simonii.2. As expected, both NO and ABA can induce stomatal closure of detached populus leaves.

107杨具有较强的抗氧化能力，干旱诱导酶活性提高；小青杨抗氧化能力较弱，造成活性氧积累，导致光氧化伤害。

The differentiation states of costae indicates the ways they absorb and transport water, and their ability adapting to the dry conditions, which was elucidated by the following examples: Brachythecium plumosum, because of its thin cell-walls in the costae and the absence of hydrome, assistant and steroid cells, can absorb water and nutrition under shady and moist conditions; Plagiomnium rostratum, though often grows in shady and wet condition, has hydrome and steroid cells, a feature similar to those of xeric mosses, which endows it to grow in the conditions with periodical drought stress during its life cycle; Hygrohypnum luridum is characterized by its slender leaves with only one layer of cells, the thin cell-walls, the absence of filaments on the leaf surface, and the fewer layer cells in the costae, the absence of hydrome and steroid cells. These features make it adaptable to aquatic environments. For Pogonatum inflexum and Atrichum undulatum, their ventral surfaces covered with lamella, while for Racomitrium japonicum, Thuidium cymbifolium, Macromitrium ferriei, Diphyscium fulvifolium, Barbula unguiculata and Ceratodon purpureus, their leaves are strongly mammillose or papillos. Such appendiculate structures made them adaptable to thy conditions.

例如，荫湿生环境下的羽枝青藓Brachythecium plumosum，其中肋细胞胞壁较薄，无导水主细胞和副细胞的分化，也没有厚壁细胞分化，能够在阴湿环境下吸收水分和养分；钝叶匍灯藓Plagiomnium rostratum具有与旱生藓类植物相似的中肋结构，叶片较厚，中肋具导水主细胞，中肋背面具厚壁细胞，这些特点使该种藓类植物能够分布于间隙性干旱胁迫的环境中；水灰藓Hygrohypnum luridum叶片纤细柔弱，仅1层细胞，细胞胞壁薄，叶表无附属结构，中肋细胞层数少，无导水主细胞分化，也没有厚壁细胞，这些特点使得水灰藓'能够生长在水生环境中；东亚小金发藓Pogonatum inflerum和波叶仙鹤藓Atrichum undulatum的叶腹面覆盖着栉片，东亚砂藓Racomitrium japonicum、大羽藓Thuidium cymbifolium、福氏蓑藓Macromitrium ferriei、东亚短颈藓Diphyscium fuhifolium、扭口藓Barbula unguiculata和角齿藓Ceratodon purpureus的叶片表面有乳头状突起或疣状物，这些附属结构使它们能够适应于旱生的环境中。

Arid, broiling environment, let life flinch, but, here still has a kind of arboreous and castiron ground to growing, because live without other tree in desert, these tree often are chopped to fall by native, draw out quiver of empty make it, so they are called quiver tree.

干旱、酷热的环境，让生命望而却步，但是，这里仍有一种树木不屈地生长着，因为沙漠里没有别的树木生存，这些树木就经常被土著人砍下，掏空做成箭袋，所以它们被称为箭袋树。

Based on field experiment and measure data, ecological characteristics of soil water in different fencing sandy land in arid desert area and vegetation restoration effect of soil water variation in fencing sandy land were analyzed. In representation of Artemisa arenaria DC population, observing and researching vegetable restoration effect of soil water variation in fencing sandy land. The results indicate as follow:(1)With the vegetation development constantly in fencing sandy land, soil water utilization of vegetation increased. It made soil water content and soil water storage reduced with the increase of fencing time in sandy land.

本文通过野外实验测定数据，分析研究了干旱荒漠区不同类型封育沙地土壤水分生态特征，以及封育沙地土壤水分变化对植被恢复的影响，并以当地沙蒿种群为代表，观测研究封育沙地土壤水分变化对植被恢复的影响，结果表明：(1)封育沙地随着植被的不断生长，植被对土壤水分的利用也有所增加，从而使沙地土壤含水量和储水量随封育时间的加长而表现为一定的降低趋势。

The BP neural network model fitted very well in the study of aspiratory infectious diseases.

BP神经网络模型对干旱地区呼吸道传染病具有较高的拟合和预测能力，预测效果较好。

Accord ing to the experimental results of maize under moisture change of soil and atmos phere, the compensative soil drought effect on growth and water use efficiency b y raising humidity of atmosphere was researched.

通过土壤大气湿度组合的玉米实验，研究了大气湿度提高补偿土壤干旱作物生长与水分利用效应的规律。

When palaeoclimate became arid, the content of authigenic carbonate increased, and the proportion of aeolian silty sand in terrigenous clast increased distinctly too.

在高频旋回中，当气候偏干旱时，页岩中的自生碳酸盐含量增加，同时风成粉砂在陆源碎屑中所占的比例也明显升高。

Xizhou is one of the important production areas of Avena nuda in Shanxi province.

莜麦性喜温凉，遍布我国西北半干旱地区，在海拔1000～2000m高度范围内均有种植和存在，是一种源于我国，古老而又普遍的农作物。

Beni, a district of Bolivia prone to alternate flooding and drought, is an example of a region where people are being forced to adapt to the changing climate.

玻利维亚的贝尼地区容易遭受洪水和干旱的轮流侵袭。它也是一个人们被迫应对气候改变的例子。

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。