天水市麦积区西山沟小流域综合治理措施研究

Study on comprehensive remedial measures for Xishangou sub-watershed in Maiji District,Tianshui City

通过对天水市麦积区西山沟小流域的现场调查,结合工程技术手段,分析了区域自然概况及水土流失危害;论述流域水土流失现状;明确了综合治理的必要性。结果表明:西山沟流域地质环境恶劣,水土流失严重,在极端降雨条件下极易爆发山洪泥石流等地质灾害。采用“水保林+工程治理”对西山沟小流域生态环境进行综合整治,以达到完善水土保持防治体系,减少水土流失危害的目标。

Through the field investigation of Xishangou small watershed in Meiji District,Tianshui City,combined with engineering technology means,the natural situation of the region and the damage of soil and water loss are analyzed.The present situation of water and soil loss in the basin is discussed.The necessity of comprehensive treatment has been clarified.The results show that the geological environment of Xishangou basin is bad,soil and water loss is serious,and geological disasters such as mud-rock flow and mountain flood are easy to break out under extreme rainfall conditions.The ecological environment of Xishangou small watershed was comprehensively regulated by“water conservation and forest management+engineering treatment”to achieve the goal of improving the soil and water conservation control system and reducing the harm of soil and water loss.