干旱

The time when the leaf water potential reached the lowest during the day was earlier in seedlings of Quercus liaotungensis and Fraxinus rhynchophylla subjected to soil drying than in the control.

4和土壤开始时最低叶水势出现的时间相比，土壤干旱后辽东栎和大叶白蜡的最低叶水势出现要早。

According to the wide development of the typical warm-phase salt minerals such as primary glauberite and its thin bed in the Qianjiang Formation, it may be inferred that the dry palaeoclimate in the drainage area of the Jianghan Basin during the Late Eocene to Early Oligocene was of warm-dry type, rather than of cold-dry type.

根据潜江组中典型暖相盐类矿物原生钙芒硝及其薄层的广泛发育，可以推断江汉盆地区域在晚始新世－早渐新世潜江组沉积期间，所出现的干旱古气候属于暖旱型而不是寒旱型。

Lipid peroxidation and activity of cell defense enzymes in leaves of oneyearold Gleditsia sinensis seedlings were studied under drought and salt stress.

以1 a生皂角实生苗为材料，采用盆栽方法研究了干旱和盐分交叉胁迫对其膜质过氧化和保护酶活性的影响。

In arid climates, surface water is generally better than ground water in headwater areas, but poorer downstream.

在干旱气候的上游区，地表水一般较地下水好，但下游的地表较差。

Some important protective enzymes and substances of Hedysarum mongolicum Turcz. seedlings related to antioxidation defence system were studied at the different degrees drought srtess.

研究了不同程度干旱胁迫下杨柴苗抗氧化防御系统的多种重要保护酶及物质的变化。

The corn hybrid species of Haiyu4 was used as experiment materials. The dynamics regulations of main physiological parameters were studied in this experiment, in which it was subjected to drought stress at different growth stages, different holard and irrigation before seeding.

本试验以海玉4号玉米杂交种为试材，通过不同土壤重量含水量及不同坐水量处理，不同生育时期干旱胁迫处理，并通过对相关生理指标和产量及籽粒品质的测定及分析，探讨春玉米主要生理指标的动态变化规律，为北方春玉米旱作栽培及节水灌溉提供理论依据。

Regional geology,hydrogeological features of water supply source area in Dinyxi city are briefly introduced.

地处西北干旱地区的甘肃省定西市城市供水主要依赖于地下水，是我国水资源最为紧缺的城市。

Hygrophilous species disappeared partly, and disturbance-resistant species and exotic species expanded their populations in the tourism area;(2) the community structure of bryophytes on the fir trunks in the tourism area was found simpler than that in the undisturbed area; and (3) the trunk at height of 120~180cm was more susceptible to disturbance, but the base was not affected signif icantly by disturbance.

在旅游活动频繁地段，耐荫喜湿物种局部消失，耐干旱抗干扰的植物种群扩大；(2)旅游活动频繁地段树干附生苔藓植物的丰富度、盖度和生物量较未扰动地段小；(3)距地面较高的高度120cm和180cm处受到的干扰强度最大，基部的影响较小。

According to the statistics of the percentages of thermophilic and hygrophilous plants in various members, the warm humid climate alternated with the arid (or semi-arid) climate throughout the deposition stage of the Xujiahe Formation.

川北晚三叠世须家河组植物化石含量丰富，根据喜湿植物，喜热植物在各段的厚分含量统计，须家河组整个沉积阶段气候温暖，潮湿与干旱气候交替出现。

Facing the increasable supply-demand contradiction of water-resource in Tong Liao,exploiting water resource and establishing stable water-resource supply system is becoming very important.

通辽市地处我国北方干旱地区，水资源短缺表现尤为突出，再加上长期以来的不合理开发、粗放利用与水质污染，更使水资源供给体系难以保障。

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。