semi-arid zone

基本解釋

Northwest of China, whose area accounts for 38 percent of the total, is one of the typical arid and semi-arid zone in the world.
我國(guó)西北地區(qū)是世界上典型的乾旱半乾旱地區(qū)之一，佔(zhàn)國(guó)土麪積的38％。
Water Resources development plays a key role in the ecological environment of inland river basins of arid and semi-arid zone in Northwest China.
水資源的開發(fā)利用對(duì)我國(guó)西北乾旱內(nèi)陸河區(qū)的生態(tài)環(huán)境具有重要的影響，天然植物的生長(zhǎng)與種群隨地下水位和陣水的變化而縯變。
Especially, In arid and semi-arid zone, water resource has become one of pressing critical problem for economic development and ecosystem conservancy.
在乾旱半乾旱地區(qū)，水資源已成爲(wèi)區(qū)域社會(huì)經(jīng)濟(jì)發(fā)展和生態(tài)建設(shè)的“瓶頸”。