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基于3个种植植物篱的试验小区和2个对照小区在3次降雨条件下的土壤侵蚀状况,将降水、坡度坡长、植物覆盖类型、土壤可蚀性K值作为影响因子输入,利用Markov模型和CA相结合的方法分别对5个小区的水土流失情况进行了模拟预测,并对结果以及引起误差的原因进行了分析.观测和模拟的结果表明,植物篱可以显著地减少坡面土壤流失量,并且不同植物篱作用不同,香根草的水土保持作用优于新银合欢,同时香根草在10°小区的作用大于它在15°小区的作用.
Based on the soil erosion status of three experimental hedges and two control plots under three rainfall conditions, rainfall, slope length, plant cover and soil erodibility K were input as influence factors. Markov model And CA were used to simulate soil erosion in five plots respectively and the results and the causes of the errors were analyzed.The results of observation and simulation showed that hedgerow can significantly reduce the amount of soil erosion , And the effect of different hedgerows was different. The effect of vetiver on soil and water conservation was superior to that of Acacia, while the effect of vetiver on the area of 10 ° was greater than that on the area of 15 °.