干旱期

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。

The Φ(subscript PSⅡ), Fv/Fm and qP were increased but qN was decreased with increasing of chlorophyll a, the rate of heat dissipation was increased with the increasing of chlorophyll b, and the carotinoid increasing enhanced the rate of heat dissipation of dryland and carbon assimilation of irrigated cultivar The Φ(subscript PSⅡ) and qN of dryland cultivar treated by control were higher than that of irrigated cultivar in jointing stage significant, indicating that the characteristics of drought-resistantce of winter wheat could be displayed in the jointing stage, and the drought-resistant capability could be increased by enhancing the practical photochemistry efficiency and heat dissipation in jointing stage.

拔节期对照处理的旱地品种的Φ和qN显著高于水地品种，在该时期品种抗旱性差异表现较为明显，能够通过提高光合机构实际光化学效率和热耗散来增强光合机构对干旱的适应能力。

Frequent drought led to a steady increase in stomatic de- nsity,cell sap concentration a...

经常性干旱还引起气孔密度增加，细胞液浓度及叶绿素a/b 值增大，籽粒灌浆期缩短，粒重及产量显著下降。

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。

It can make slow changes of soil temperature. It decreased the quick changes of soil temperature caused by the sudden changes of air temperature, and maintain the normal growth of the trees, in addition, it increased air humidity in plum orchard. It eased the drought status during period of high temperature. Sown grass in plum orchard can increase soil organic substance, total N, available N, available F, and available K.

果园生草可以使土壤温度变化缓慢，缓解气温的骤变造成地温的急剧变化，维持树体的正常生长；提高果园空气湿度，缓解了旱期由于高温干旱造成的生长停滞；提高土壤有机质、全氮、速效氮、磷、钾的含量。

It is a megadepression evolving from a Mesozoic back-arc paraforeland basin to a Cenozoic intermountain basin, and filled with large sets of argillaceous rock, calcareous mudstone, carbonate rock and clastic rock of saliniferous-semisaliniferous environment under the semidry climate of inland lakes which form a set of giant-thick hydrocarbon source rock with two periods of hydrocarbon-expulsion peaks, two types of reservoir series as well as special capping and migration conditions.

是一个由中生代弧后准前陆盆地向新生代山间盆地发展演化的一个大型坳陷。充填了内陆湖泊半干旱气候下咸化环境－半咸化环境的大套泥质岩，含钙质泥岩及碳酸盐岩和碎屑岩。形成一套巨厚的具两期排烃高峰的烃源岩，两种类型的储集岩系、特殊的盖层条件及运移条件。

After the third leaf stage topdressing denitrification N loss was lower in the earlier stage than later due to soil drought.

三叶期施肥后土壤干旱，反硝化损失氮量相对较低，随后由于土壤水分状况的改善而增强。

The analysis of TOC andδ13Corg benefits from Well Chao-73, indicating that they response well enough to the Cretaceous paleoenvironment and paleoclimate. During the sedimentary period of Quantou formation to Qingshankou formation in Songliao basin, the water tends to rise and becomes anoxic, and the deoxidized water leads to the organic matter massively preserved. The paleoclimate changes from torridity and aridity to warmth and humidity, with the temperature evidently descengded, then ascended in a litter range. The result is basically consistent with paleoclimate by the palynological analysis.

朝73井TOC、δ13Corg有机地球化学指标的分析结果表明，TOC、δ13Corg的变化对该沉积时期的古环境、古气候也有很好的响应，该沉积期湖水位不断上升，湖生生物逐渐发展并繁盛起来，水体含氧量减少，湖底有机质的保存环境逐渐变为强还原环境，大量有机质被埋藏并保存，而古气候在泉头组/青山口组界线上下由炎热干旱变得温暖湿润，气温有明显下降，但随后又有小幅的上升，与孢粉分析的古气候变化特征基本一致。

The results showed that clay mineral of the sedimentary core B106 reveal seven palaeoclimate events since 16725 Cal.aBP, such as"Bolling Warming Events"in 13100±45 aBP,"Younger Dryas Cooling Events"in 10393±45 aBP,"Early Holocene Cold Event"in 8000aBP,"South of China Cooling Events"in 4624±35 aBP, Cooling Events in 3370±40 aBP, Drought Incident Cooling Events in 922BC and"Cooling Events of Northern and Southern Dynasty"in 514AD.

研究结果显示，B106柱的粘土矿物学指标指示出16725 Cal.aBP以来的7次古气候变化事件，分别是13100±45 aBP的&博林暖期升温事件&、10393±45 aBP的&新仙女木降温事件&、8000 Cal.aBP对应的&全新世最大降温事件&、4624±35 aBP的&中国南方降温事件&、3370±40 aBP的降温事件、922BC的干旱降温事件和514 AD的&南北朝降温事件&。

The yield was sensitive to water supply during flowering and podding stage, in which the sensitivity was found podding stage （ R3 - R5 ）〉 flowering stage （R 1 - R3 ）〉 vegetative stage （V2 - R1 ）〉 the contribution of water supply to the yield formation was more central than potassium fertilizer application in light of controlling soil water at the same growth stage.

大豆对水分较为敏感的时期是开花期和结荚期，各时期敏感程度表现为结荚期〉花期〉营养生长期；同一生育时期控水下水分对大豆产量的影响要高于钾肥；旱涝都将影响大豆籽粒产量的形成，但干旱引起的减产程度要大于涝害。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了