Theory and method of water-saving eco-agriculture planning in ari and semiarid area .

干旱半干旱地区节水生态农业规划的理论与方法。

A water and heat transport model in arid and semiarid regions .

干旱及半干旱区土壤水热传输模式研究。

Growing seasons in temperate regions will expand , while droughts are likely to ravage further the semiarid regions of africa and southern asia .

温带地区的植物生长季节将增长,而在非洲和南亚缺水区域,乾旱将更为严重.

Species composition and plant diversity within watershed were investigated at different habitat in semiarid loess hilly region during the process of vegetation restoration .

通过小流域内不同生境条件下的植被调查，研究了半干旱黄土丘陵沟壑区植被恢复过程中的物种组成和植物多样性。

The semiarid lands bordering the deserts exist in a delicate ecological balance and are limited in their potential to adjust to increased environmental pressures .

沙漠周边的半干旱地区生存在一种脆弱微妙的平衡中，并且适应日益增加的环境压力的能力有限。