青藏铁路山丘坡地取土场生态恢复措施探讨

青藏铁路主体工程完工后,取土场的生态环境恢复是全线环保恢复工作的重要组成部分,恢复的目的是通过对取土场的综合治理,达到防止水土流失、防止冻融滑塌,同周围景观协调统一,并进一步达到复垦还林还草要求。本文针对青藏高原冻土地区山丘坡地取土场植被稀疏、生态脆弱的特点,进行了以工程措施为主、生物措施为辅的研究尝试,取土场恢复试验结果表明,从景观恢复、水土保持和防止冻土区的融陷、滑塌现象均取得了明显的效果。

Discussion on Ecologic Recovery Measure of Borrow Pit Ground in Qingzang Railway Massif and Sloping Field

The major project of Qingzang Railway has been achieved, recover borrows pit ground entire is a important part of environment recover works. The purpose of recover borrows pit ground is to prevent soil and water loss and frozen soil thaw bring on landslide, assort with around sight and more achieve recover lea. This article researched mostly by project measures, assistant by ecologic measures for recover borrows pit ground. The result indicates the obvious effects have been gainned on recover sight, prevent soil and water loss and frozen soil thaw bring on landslide.