干旱地区

As a result,when we afforest in these areas, it becomes very important for sustainable development of forestry to develop water-saving and to increase water utilization efficiency.

因此在干旱半干旱地区造林，节水及提高水的利用率是林业可持续发展的重要问题。

The product is particularly well suited to the development of agriculture and animal husbandry, reforestation, gardening and landscaping, flora-cultivation, anti-desertification in arid and semi-arid areas.

该产品尤其适用于干旱及半干旱地区的农牧业生产、植树造林、园林绿化、花卉种植及土地荒漠化治理。

The management of arid and semi-arid areas.

指对干旱和半干旱地区的管理。

Desertification is a serious problem in arid and semi-arid regions in China.

荒漠化是我国干旱、半干旱地区面临的最严重的问题。

In Shanxi Province in aridity and semi-arid region, the groundwater is the important resource of water supply.

在处于干旱与半干旱地区的陕西省，地下水是重要的供水水源。

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。

Desertification is land degradation occurs in arid, semi-arid and subhumid regions, which is one of the he environmental problems human society generally concerned in the context of global change, has a direct relationship with the survival and development of their own humanity.

沙漠化即发生在干旱、半干旱及半湿润干旱地区的沙质荒漠化，是全球变化背景下，人类社会普遍关注的环境问题之一，与人类自身的生存和发展有着直接的关系。

Drought and water shortage are worldwide problems in 21st century. Controlling of soil water evaporation and collecting of aerial water have become significant approaches to improve water shortage in droughty region.

干旱缺水已成为21世纪和未来的世界性难题，减少土壤水分蒸发、收集空气中的水分，已成为缓解干旱、半干旱地区水资源紧缺的重要途径。

Propylaea japonica is one of important predatory natural enemies in arid and semi-arid area China, especially those preying on younger larvae and eggs of insect pest in orchards and cotton fields.

龟纹瓢虫Propylaeajaponica是我国干旱、半干旱地区农林果蔬生产中重要的捕食性天敌之一，尤其在夏季高温、干旱的情况下，对果园、棉田的幼龄害虫和卵的捕食作用非常明显。

Species in Ceratoides are semi-shrub xerophytes distributed in arid and semi-arid area. They have great potentialities to ecological restoration and high value to being used as forage. However researches on their physiological characteristics related to drought adaptabilities were not sufficient, yet.

驼绒藜属植物为干旱、半干旱地区具有重要生态价值和饲用价值的旱生半灌木资源，对该属植物适应干旱生理特性的研究尚不充分，加深研究有助于提高对它们的利用效率和应用价值。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。