百喜草对坡地果园水土保持及土壤改良效果的研究

Study on the Soil Conservation & Soil Improvement Effects by Planting the Paspalum notatum in the Slope Orchard

当前,许多地区果园采用全园套种水土保持先锋植物进行果园的水土保持。本文研究了闽南花岗岩地区坡地果园改造为山边沟,同时全园套种百喜草的模式,对果园水土保持及土壤改良效果的作用。结果表明采用全园套种百喜草的山边沟果园的治理模式不仅能够有效地改善土壤通透性,提高土壤微生物数量,增强土壤酶生物活性,而且使土壤理化性状得到改善。同时,还能够有效减少土壤流失量、径流量,增加土壤保水、蓄水能力,起到良好的保持水土作用。

At the moment, orchards in many areas are inter - planted the soil conservation pioneer plants tor soil con- servation. It is studied the effect of soil conservation and soil improvement through the model that the slope orchard re- formed to the hill - side ditch inter - planting the Paspalum notatum in the granite area of south Fujian Province. The results show that the management model may not only to effectively improve the soil permeability, increase the soil mi- crobial numbers and the soil enzyme bio - activity, but also improve the soil physical and chemical properties. In addi- tion, it may effectively reduce the soil erosion and runoff, so as to improve the soil water conservation and holding ca- pacity for better soil conservation.