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为研究晋西残塬沟壑区小流域治理的特点及减水减沙效益,为水土保持大面积治理提供科学依据,我站于1982年在隰县唐卢沟进行了小流域治理对比试验。现将有关资料作初步整理与分析.一、小流域概况1 .自然地形地貌:本试验小流域选定在唐卢沟流域中下游的两条相邻的一级支流. 作为对比小流域.两个流域基本条件相近,具有较好的可比性,流域内塬面平缓(塬心1～3°,塬边3～7°),塬上覆10米左右的马兰黄土.沟谷呈V型,沟坡上缓(10～30°)下陡(30～80°)为马兰黄土及离石黄土.沟底己切入坚硬的离石黄土下部及午城黄土层,并夹有大量礓石.其地形地貌特征见表1.
In order to study the characteristics of small watershed management and the benefits of water and sediment reduction in the gully area of the western Shanxi Province, and to provide a scientific basis for large-scale management of soil and water conservation, I conducted a comparative experiment of small watershed management in Tanglugou, Pixian County in 1982. Now the relevant information for the preliminary sorting and analysis.A small watershed 1 natural topography: The experimental watershed selected in the middle and lower reaches of Tanglugou two adjacent to a tributary.As a comparison of small watershed. The basic conditions of the watershed are similar, with good comparability, flat surface plateau in the basin (1 ~ 3 ° of the plateau and 3 ~ 7 ° of the plateau) and Malan loess with 10 meters above the plateau. The valleys are V- The steep slope (30 ~ 80 °) on the slope is Malan loess and Lishi loess.The ditch bottom has been cut into the hard loess loess and the midday loess layer, Geomorphological features are shown in Table 1.