【摘要】 苦竹+牛鞭草退耕种植模式经过5年的经营,植被组成和结构发生了一定程度上的变化,种植初期的苦竹+牛鞭草复层种植模式,因模式本身和农户经营利用的意愿不同的原因而逐渐过渡到第5年时的纯牛鞭草地或纯苦竹林,同时植被的垂直结构和水平结构也产生了质的不同。纯苦竹林的经营林地因苦竹采伐的原因留下一定面积分布和厚度的枯落物,这对退耕地保持水土起到了积极的作用,达到了退耕种植的要求,过渡后的纯牛鞭草地因周期性地出现地表裸露,水保效能偏低,需要整治和改进；同时苦竹+牛鞭草镶嵌种植的配套技术还需要进一步研究。更多还原

【Abstract】 After 5 years’ management,the structure and composition of Pleioblastus+grass planting pattern have changed.The model of Pleioblastus+grass planted before have became to be the single and pure Pleioblastns stand or the pure grass lands for the reasons of the model itself and the management willing of peasants.After that, the pure grass land on the slope can’t reach the goal of water and soil conservation in the engineering of converting farmland to fore,st,and need to be improved.The ecological and economic benefits of pure Pleioblastus stand are better.This planting model may be only fit to the lands for the first 3 years,or the technology of grass and Pleioblastus’s plot mixed structure need to be studied more in the future.更多还原