水土保持研究2026，Vol.33Issue(2)：35-41,7.DOI:10.13869/j.cnki.rswc.2026.02.026
输变电线路塔基区不同植被模式下边坡水土流失特征
Soil erosion characteristics of slopes under different vegetation patterns in tower foundation areas of power transmission and transformation lines
摘要
Abstract
[Objective]This study aims to clarify the characteristics of soil erosion and the water-sediment relationship in the tower foundation areas of power transmission and transformation projects in hilly regions,and to mitigate the impact of soil erosion on the regional ecological environment.[Methods]The tower foundation area with the most severe erosion in the power transmission and transformation line project in the hilly region of western Liaoning was taken as the research object.Simulated runoff experiments were conducted using bare slopes(CK)as the control.Flow rates were set at 5,10,15 and 20 L/min to investigate the runoff-sediment yield characteristics and water-sediment relationship of slopes vegetated with Agropyron cristatum(BC),Cynanchum chinense(ER),and Agropyron cristatum+Hippophae rhamnoides(BG).[Results](1)Under different flow conditions,the runoff rate initially increased rapidly and then stabilized with fluctuations,with the BG slope showing the best blocking effect on runoff in the tower foundation area.(2)When the flow rate was 5～15 L/min,the slope erosion rate remained relatively stable with minor fluctuations.As the flow rate increased,the slope erosion rate in the tower foundation area significantly increased,showing an overall"multi-peak and multi-valley"trend.The BC and BG slopes demonstrated the most significant erosion reduction effects.(3)Except for the CK slope,there was a power function relationship between erosion rate and runoff rate on vegetated slopes(R2=0.60～0.84,N=76).In general,irrespective of vegetation protection measures on the tower foundation slopes,an overall trend of higher runoff leading to higher sediment yield was observed.[Conclusion]The Agropyron cristatum+Hippophae rhamnoides(BG)can effectively block runoff and significantly reduce erosion.Furthermore,the erosion rate on vegetated slopes shows a power function relationship with runoff rate,indicating that vegetation measures can effectively regulate the water-sediment relationship in the tower foundation areas.关键词
辽西山丘区/塔基边坡/原位放水冲刷/输变电线路工程Key words
hilly region of western Liaoning/tower foundation slope/in-situ flow scouring/power transmission and transformation line project分类
农业科技引用本文复制引用
吕铭,王振浩,张琦,焦勇,许志勇,张吉,计霖..输变电线路塔基区不同植被模式下边坡水土流失特征[J].水土保持研究,2026,33(2):35-41,7.基金项目
国网辽宁省电力有限公司经济技术研究院"山丘区输变电工程侵蚀环境及水土流失特征研究"(SGLNJY00SJJS2310050) （SGLNJY00SJJS2310050）
