半干旱的

Doubtlesly, grassland degradation will influence herdman's production activity and the development of pasturing area economy.

草地资源是我国干旱半干旱地区生态安全的重要屏障，也是草地畜牧业发展的重要物质基础。

In this paper the water physiological characteristics of winter wheat seedling under different soil drought were researched.

水分是植物生长和发育的必要条件之一，是干旱半干旱地区作物生长发育的主要限制因素。

Arid and semiarid areas are main areas of food production in our country.

干旱和半干旱地区是我国重要的农业生产区，水分不足和养分缺乏是制约其生产发展的两个关键因素。

Wind erosion is one of the main causes of land degradation in the arid and semiarid region of China,it limits the development of agriculture at present.

土壤风蚀是我国干旱半干旱地区土地退化的主要原因之一，严重制约着农业的可持续发展。

Northwest China which is located in the arid or semiarid area is the most important base of animal husbandry in China.

地处干旱半干旱带的西北地区，是我国最重要的畜牧业基地。

The North-western region of China, where it is arid or semiarid, is the most important in stock-raising of the country.

地处干旱半干旱带的西北地区，是我国最重要的畜牧业基地。

As far as the sustainable agriculture in arid and semiarid areas is concerned, it is an important problem to develop water-saving agriculture and increase Water Use Efficiency.

发展节水农业，提高水的有效利用率，是保证干旱半干旱地区农业可持续发展的重要问题。

Soil water, a sort of significant water resources, is a key in transformation among surface water, groundwater, atmospherically water and soil water.

水分是干旱、半干旱地区植被建设最重要的生态制约因子，对植被恢复具有极大的限制性。

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。

Plastic film is a modernization planting technique in droughty and semiarid area, it is adapted to wheat, cootten, corn, peanut and so on. Plastic film can save water, protract crops vegetal time, increase production.

地膜覆膜是在干旱、半干旱地区推广使用的一种现代化种植工艺，适用于小麦、棉花、玉米和花生等农作物，能够达到节水、延长作物的生长期、增产等目的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。