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为研究公路边坡土壤侵蚀量及在坡面上人工种草与在自然状态下坡面植被恢复的年限,以寻求低价有效的防治措施,我站开展了初步试验研究。结果表明,倾倒形成的边坡自然状态下土壤侵蚀量以第一年最大,达到2181t/km2·a,单个试区当年最大侵蚀量达4336.4t/km2·a。同时,人工种草防治试验表明,在四个防治措施组合中,其优劣顺序是:人工带土草皮移植型→人工撒播“百喜草”型→人工撒播混合草种型→自然植被恢复型。该项研究成果可为水土保持规划设计、防治开发建设项目造成的人为水土流失提供技术支持和参考。
In order to study the amount of soil erosion on highway slopes and the time of artificial grass planting on the slope and the restoration of vegetation on the slope under natural conditions, we conducted a preliminary experimental study to find low-cost and effective prevention and control measures. The results show that the soil erosion under the natural condition of slopes formed by dumping is the largest in the first year, reaching 2181t / km2 · a, and the maximum erosion in the single trial area was 4336.4t / km2 · a in the first year. At the same time, artificial grass control experiments showed that in the four combinations of control measures, the order of advantages and disadvantages were as follows: Artificial soil sod transplanting → artificial sowing “Baxhi Cao” type → artificial sowing mixed grass type → natural vegetation Recovery type. The research results can provide technical support and reference for man-made soil and water loss caused by planning and design of soil and water conservation, prevention and control of development and construction projects.