苦竹+扁穗牛鞭草退耕种植复合模式植被结构特征分析  

The Vegetation Features Analysis of Pleioblastus amarus+Hemarthria compressa Planting Multiple Model in the Engineering of Converting Farmland to Forest

作　　者：张学权[1] 张旭东[1] 胡庭兴[2] 盛秀强 

机构地区：[1]西昌学院,四川西昌615013 [2]四川农业大学,四川雅安625014 [3]四川省大竹县林业局,四川大竹635100

出　　处：《草业与畜牧》2007年第5期5-8,共4页Pruataculture & Animal Husbandry

基　　金：国家科技部"十五"重点攻关项目(2001BA606A-06)资助;四川省教育厅重点学科建设项目(2003)资助

摘　　要：苦竹+牛鞭草退耕种植模式经过5年经营,植被组成和结构发生了一定程度的变化,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等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。After management for 5 years, the structure and composition of Pleioblastus amarus＋Hemarthria compressa planting pattern have changed. The model of Pleioblastus amarus ＋Hemarthria compressa planted early have became the single and pure Pleioblastus amarus stand or the pure Hemarthria compressa lands because of itself growth and the management willing of peasants. After that, the pure Hemarthria compressa land on the slope could not reach the goal of water and soil conservation in the engineering of converting farmland to forest, and need to be improved. The ecological and economic benefits of pure Pleioblastus amarus stand are better, which reaches the goal of the engineering. The technology ofHemarthria compressa and Pleioblastus amarus mixed structure needs to be studied more in the future.

关 键 词：植被组成 结构 经营利用 效益 

分 类 号：S54[农业科学—作物学]