semiarid怎么读，semiarid什么意思，semiarid短语和例句

1.The afforestation in arid and semiarid is restricted by water condition.

干旱区和半干旱区的造林主要受水分条件的限制。

2.As a kind of special soil, aeolian sandy soil mainly lies in arid and semiarid areas where sand drift activity is very strong.

沙土是存在于干旱、半干旱地区的一种特殊性土，其岩土工程性质与风沙环境紧密相关。

3.The chemical laboratory of the Semiarid Prairie Agricultural Research Centre of Canada is very influential in western Canada.

加拿大半干旱草原农业研究站化学实验室在加拿大西部很有影响。

4.Soil erosion by wind is a major cause of farmland degradation in arid and semiarid area of north China.

土壤风蚀是中国北方干旱半干旱地区农田土地退化的重要原因。

5.Cereal production is the most basic function of cropland, particularly important over semiarid areas.

粮食生产功能是耕地最基本的功能，在半干旱区有着特殊的重要性。

6.In arid and semiarid regions, on the other hand, the small number of lakes and the great distances between them reduce the possibilities for correlation.

另一方面，在干旱和半干旱地区，湖泊数量少，湖泊之间距离远，减少了相互关联的可能性。

7.Aeolian sandy soil is a kind of specific soil formed in arid or semiarid area.

风沙土是形成于干旱区、半干旱区的一种特殊性质的土。

8.Shortage of water resources restricted agricultural production in arid and semiarid region.

水资源紧缺限制了干旱半干旱地区农业生产。

9.The raising of livestock is a major economic activity in semiarid lands, where grasses are generally the dominant type of natural vegetation.

在半干旱地区，草地通常是最主要的天然植被，而该地区主要的经济活动是家畜饲养。