1·Shrub expansion has occurred in other environments, like semiarid grassland, and tall grass prairies.
灌木的扩张也发生在其他环境中，比如半干旱草原和高草草原。
2·In many semiarid areas there is also a lower timberline where the forest passes into steppe or desert at its lower edge, usually because of a lack of moisture.
在许多半干旱的地区中，同样存在树带界限的下限区域；在这片区域之内，由于缺乏水分，森林下沿区域的植被通常会逐渐变成干草原或沙漠。
3·The trees are most heavily concentrated in the south of Maranhão, in the transition zone between Brazil's semiarid northeast and the Amazon rainforest.
马兰豪州南部是棕榈树最为集中的地方，分布在巴西的半干旱地区东北部和亚马逊雨林交界的地区。
4·Active lizard having a network of dusky dark markings; of semiarid areas from Oregon and Idaho to baja California.
身上有网格状深色斑点的活跃的蜥蜴；产于从俄勒冈和爱达荷到加利福尼亚巴加的半干旱地区。
5·So that hole seeding of dryland spring wheat with autumn mulching has a high extension value in semiarid areas.
因此，旱地春小麦秋覆膜穴播栽培技术在半干旱地区有较高的推广价值。