干旱

In a certain period, the probability and expected value of critical drought duration got larger with the in crease of first-order auto-correlation coefficient and skewed coefficient, especially with first-order autocorrelation coefficient. The return periods of consecutive 11-year drought in North Luo River and Jing River were 1000 years.

在一定时期内，极限水文干旱历时的发生概率和数学期望随一阶自相关系数、偏态系数的增加而增大，且一阶自相关系数对极限水文干旱历时概率分布影响较为显著；泾河和洛河发生连续11年干旱的重现期均为1000年。

The results indicated that the content of MDA and root-shoot ratio were increased, but the dry weight of root, total root length, secondary root number, root activity, the SOD activity of root, the height of plant and aboveground dry weight of broomcorn millet decreased significantly with drought treatment regardless of fertilizing or not.

不同施肥水平下黍子根系对干旱胁迫的生物学响应研究表明，无论施肥与否，拔节期或抽穗期干旱胁迫均会使黍子根重、根长、根活力、次生根数、根系SOD活性及株高与地上部干重明显降低，MDA含量明显增高；水分胁迫解除后，黍子根系增长迅速，表现出明显的补偿效应和根系对水分反应敏感的特点，但干旱造成的不利影响在后期未能完全补偿。

Biomass and WUE1 of wheat with R chromosome set is largest in all diploidy material, and that with B chromosome set is least in all diploidy material. Meanwhile, the root growth of wheat with A and B chromosome set is largest, and that with D chromosome set is least in all diploid material.

N、P影响了干旱下玉米叶片的气体交换能力，表现为提高了干旱下玉米叶片的气孔导度和光合速率，且N的作用要大于P的作用；N具有同时降低玉米叶片光合作用的气孔和非气孔限制的作用，而P提高玉米光合则主要是由于降低了干旱下的非气孔限制。

Make rain seeps through loess to be utilized by agronomic crop. The develop of the ditcher has become a new approach to solve agricultural drought in northwest area.

该机具的开发研制将成为干旱半干旱地区特别是我国西北地区解决农业干旱问题的新途径。

Although their drought was shorter it was even drier, the worst in 800 years.

尽管他们经历的干旱时间较短，但干旱程度却更强，是800年间最干旱的一次。

Supported by the ESCAP pilot project on integrated land and water resources management in arid areas using remote sensing and GIS (ESCAP 5-4-401), the land and water resources optimization model was developed and an integrated land and water resources management system based on remote sensing and GIS was designed and developed in this paper.

本文结合联合国亚太经社理事会示范项目"利用遥感与GIS技术进行干旱区水土资源综合管理"（Pilot project on integrated land and water resources management in arid areas using remote sensing and GIS，ESCAP 5-4-401），针对我国广大的干旱半干旱区水土资源综合管理的实际需要，详细讨论了基于遥感与GIS的干旱半干旱地区水土资源综合管理系统的设计思想、目标、结构与功能及系统开发中的关键技术。

The cause of the heat-wave during the drought is the intensified Rossby wave over the Eurasia continent,which results in a closed warm anticyclone over the drought area,then an adiabatic warming is caused by the strong sinking motion.

华北地区夏季热浪天气的成因：(1)夏季欧亚大陆Rossby长定波波列的维持并发展，使得干旱区域上空出现闭合暖性高压系统，其强烈下沉运动引起空气绝热增温(2)局地干旱维持与发展使得干旱区内潜热大大降低，近地面感热以及向上长波辐射的增加使得干旱区域气温持续升高。

Wang Xiaoyi discussed the impacts of persistent drought on local livelihood and whether current measures to coop with drought worked well for the long term perspective in his paper. Based on a case case study in Horqin Sandy Land, he suggested that the poverty has been more serious because of drought, it increased the production cost for rich herders, but broken the vulnerable balance in poor households; the uneven distribution of resource in household brought more social problems in the community; the wrong means to cope with drought, which focused on property and ecological compensation, would intensify the poverty problem in pastoralist.

王晓毅在文章中通过兴安盟一个嘎查的实地调查，讨论了持续的干旱对牧民生计的影响及从长期效果来看，现在应对干旱的手段是否可行的问题，文章认为持续干旱正在造成牧区的普遍贫困化，增加了大牧户的成本，但却打破了小牧户的脆弱平衡；在畜牧业收入占主导地位的情况下，资源占有的不均衡导致了更严重的社会问题；在干旱的条件下，试图通过草原产权制度的改革和补偿性的生态政策经常会在运行过程中导致生态的进一步恶化。

To explore the possibility utilizing mild drought treatment to promote metal ions absorption,uncontinuous drought treatment (1 h, 2 h, 3 h, 4 h each day, lasting for 8 days) and 24 h continuous drought treatment were adopted to wheat seedlings, Fe and Zn content in root, shoot, 1~3 leaves and relative water content in wheat leaves were detected to investigate the effect of different drought treatments on uptake and distribution of Fe and Zn.

中文摘要：为探讨利用轻度干旱处理促进金属离子吸收的可能性，采用液体培养法，研究了不同干旱处理方式对小麦幼苗Fe、Zn两种元素吸收和分布的影响。将10 d苗龄（3叶期）小麦幼苗分为5组，其中4组每天分别干旱1、2、3和4 h后复水，连续8 d，另外一组连续干旱24 h后复水，测定各处理的根、叶相对含水量和根、茎、第一叶、第二叶、第三叶Fe、Zn含量。

Dilate factory area greenness is taken for example in this paper, and adjusting carbon-oxygen balance, decreasing temperature, increasing humidity, in tenting dust,, reducing noise, absorbing SO2 else. And the special ecosystem function benefits of arid and semiarid area, in duding lowering the wind velocity, impeding the sand wind, increasing he air degree of humidity, regulating the air temperature, protecting the soil water.

本文以干旱半干旱沙区达拉特电厂厂区绿化为例进行分析，评价了城市园林绿化所具有的调节碳氧平衡、降温增湿、滞尘减噪、吸收SO2等一般生态功能和干旱半干旱沙区绿化所具有的降低风速、阻挡沙尘、增加空气湿度、调节气温和提高土壤保水性等特殊生态功能效益。

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