论文部分内容阅读
在山边沟的间距内 ,采用水平梯田梯壁植草 (百喜草 :Paspalum notatum)等 8种不同的处理方式观测红壤坡地果园水土流失状况 ,于第一年 (1 998年 )试验初步结果表明 ,不同处理已有显著差异。与全园裸露 (对照 )比较 ,水平梯田梯壁植草水土保持效果最佳 ,其平均径流系数减少 85 .1 9% ,土壤侵蚀量减少 98.85 % ,其他各处理也有不同程度防治水土流失的效果。因此建议在坡地果园中应进行以百喜草为主的草生栽培 ,提高植被覆盖度
In the distance between hillside ditches, the soil erosion status of orchard on red slope sloping land was observed by 8 different treatment methods, such as horizontal gravel ladder planting (Paspalum notatum). The preliminary results in the first year (1998) , Different treatments have been significantly different. Compared with the whole nursery (control), the water and soil conservation effect of horizontal terraces and steppe grasses was the best, with the average runoff coefficient reduced by 85.119% and the soil erosion reduced by 98.85%. The other treatments also had the effect of controlling soil and water loss in varying degrees. Therefore, it is suggested that grassland cultivation should be carried out on the slope orchard to improve the vegetation coverage