三峡库区马褂木水源涵养林复合经营模式研究

Study on Compound Management Pattern of liriodendron chinense Water Conservation Forest in Three Gorges Reservoir Area

摘要:

摘要：马褂木是重要的绿化、用材和水源涵养林兼用树种。三峡库区栽培面积已超过2 400 hm2。本文通过分析8种复合经营模式的效益，来综合评价不同的复合经营模式。通过对比分析，复合经营的马褂木胸径生长量年均提高10%以上。复合经营的马褂木-桔梗模式、马褂木-白术模式的年收入最高,投入大；而柴胡、黄芪和黑豆投入小、种植技术比较好掌握。试验出的几种模式可减少土壤侵蚀量33.3%，生态效益显著。根据推广应用前景，结合药材市场需求种植，提高土地利用率和单位面积产出，促进林农增收。

Abstract:

Abstracts:Liriodendron chinense is an important tree species of greening, timber and water conservation forests.The Three Gorges Reservoir Area in hubei province cultivated area has more than 2 400 hm2.The eight compound modes benefit is analyzed by the paper that comprehensive evaluated the different compound system.Liriodendron chinense of compound management wood DBH growth increased more than 10% per year.the annual income of Liriodendron chinense Platycodon grandiflorus,Liriodendron chinense Atractylodes macrocephalais highest, investment is large,the planting technology of Bupleurum,astragalus,black soybean is well received, investment is small.Several test modes can reduce the amount of soil erosion 33.3%,ecological benefits is significant.According to the application of different situation,market demand and planting, improve land use rate and unit area output,promote farmers income.