中国新疆地质局在塔克拉玛干沙漠腹地首次发现含有淡水、微咸水和咸水的地下古河道1,并圈定了两处大型地下水远景区1。这一发现打破了沙漠地下只有死水、咸水的传统认知1。
该项目通过航空瞬变电磁法等多种技术手段相结合1,构建了极端干旱区沙漠地下水勘查技术体系1,查明了目标区500公尺深度内的水文地质条件1。项目团队建立了塔克拉玛干沙漠锁边工程苦咸水利用试验站1,并开展了苦咸水灌溉试验示范1。研究发现蒸竹等作物对苦咸水适应性较强1,创新形成了"淡水出苗、咸水分梯度灌溉"的种植模式1。
China's Xinjiang Geological Bureau has made a significant discovery in the heart of the Taklamakan Desert, locating underground ancient river channels containing fresh water, brackish water, and saline water for the first time 1. The finding challenges the long-held assumption that desert subsurface water consists only of stagnant and salty deposits 1.
The project team employed airborne transient electromagnetic methods alongside other advanced techniques to construct a comprehensive groundwater exploration system tailored for ultra-arid desert regions 1. Through these efforts, two large-scale groundwater prospect areas were delineated, and hydrogeological conditions were mapped to depths of 500 meters within the target zones 1.
Beyond exploration, researchers established an experimental station for utilizing brackish water in the Taklamakan Desert's boundary protection project, where certain crops demonstrated strong adaptation to saline conditions 1. This work led to the development of an innovative cultivation method combining fresh water for seedling germination with gradient brackish water irrigation 1.
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