干旱地区

Its research areas Include: Climatology and biometeorology; Rainfall and its biological effects; Erosion and the deposition of sediments: dust storms; Dunes, their structure and formation; Microclimatology; Dew and hygroscopic moisture; Soil flora and fauna in arid lands; Seed germination and its improvement; Vegetational studies in desert regions worldwide; The physiology and ecology of plants and animals; Foraging patterns of mammals; Parasites and predators; Diurnal rhythmicity and phenology; The impact of grazing; Wildlife conservation; Anthropology and sociology of desert peoples; Oasis settlement; Human ecology and traditional land use; Land classification and improvement; Water control; Remote sensing; Desertification, its causes and control.

具体内容包罗万象：气候学和生物气象学；降雨和它的生物影响；沉积物的腐蚀和沉积；沙丘结构和形成；干旱地区的植物和动物群；寄生物和捕食动物；干旱地区的人类学和社会学；干旱地区的绿地建设；水控制和干旱地区的沙漠化的成因和控制等。

Leaf which the potato is planted in the dankness area has a higher chlorophyll A, B content, and the ratio of chlorophyll B/A.

阴湿地区种植的马铃薯叶片中叶绿素a、b及b/a比值较干旱地区高，而干旱地区马铃薯叶片中叶绿素b/a比值与品种抗旱性呈极显著的正相关，且叶绿素b含量愈高，品种抗旱性愈强。

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。

North China is situated in arid and semiarid regions.

华北地区位于干旱和半干旱地区。

This phenomenon is widely distributed in arid and semiarid area.

中国西北广大地区地处干旱半干旱地区，风蚀严重地影响着这些地区的农业生产。

In simple terms, he says,"the wet places will get wetter and the dry drier".

简单地说，他表示，"多雨地区将变得更加潮湿，干旱地区则更加干旱"。

a studies of the drought-resistant identification on nine types(18 maize varieties) in condition of simulated drought stress were tested though 3 agronomical indexes such as relative germination frequency, root dry weight, leaf water content, the subordinate fuzzy function was used to evaluate compressively the drought resistance of the eighteen maize varieties.

玉米是我国三大粮食品种之一，每年种植面积达到2500万公顷左右，主要分布在东北、华北及西南、西北等一部分地区，而我国干旱、半干旱地区（包括华北、西北、内蒙古和青藏高原等地区）主要分布在这一带，约占全国土地面积的二人之一[1]。因此，对玉米抗旱性研究是提高其产量的一个行之有效的途径。

Our country's deserts mainly lie in arid and semiarid areas, mostly with scarce precipitation and lack of water resource, neither natural vegetation with relatively strong drought-resistance capability nor plantation, like diversifolious poplar, dryland willow, shrubby sand willow, saxoul and Hedysarum mongolicum Turcz,etc., can be protected effectively, this leads to desertification area expansion and frequent sand storm, which seriously affect people's work and life.

我国沙漠多处于干旱和半干旱地区，绝大部分地区降水稀少，水资源缺乏，无论是具有较强抗旱能力的天然植被，还是人造林如胡杨、旱柳，灌木类沙柳、梭梭、杨柴等都得不到有效保护，导致沙化面积扩大，沙尘暴发生频繁，给人民群众的生产生活带来严重影响。

The yield of wheat is greatly affected by the environmental stresses like low temperature, drought salinity salt and alkaline. More than half of the fields in China is droughty, half-droughty or salty and alkaline.

在我国干旱、半干旱地区和盐碱地区约占国土面积的一半以上，仅次于病虫害造成的损失，严重制约着这些地区的粮食生产。

Because China's western area is vast and arid region accounted for almost half the land area, so the Chinese are not familiar with 1:00 to drought.

因为中国的西部地区幅员辽阔，是干旱地区占了几乎一半的土地面积，因此中国不与1时00熟悉的干旱。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。