混交造林,就是在一块造林地里,栽植两种以上的树种,使其混交生长,互相促进,创造适合它们生长的自然环境。混交林,有块状混交、带状混交,还有行间混交和株间混交等形式。营造混交林是一种科学的造林方法,好处很多。能提高防风效能。阔叶纯林,冬春无叶期地表祼露,防护作用小;针阔混交林,冬季也能起到很好的防护作用。乔灌木混交,上部有高大的树冠,下有丛生茂密的灌木,比营造纯林有更显著的防风作用,同时浅根性树种与深根性树种混交还可避免大风吹倒树木。能充分利用养分。树种不同,根系有深有 Mixed planting and afforestation means planting two or more species of trees in a piece of afforestation so that they grow together and promote each other to create a natural environment suitable for their growth. Mixed forest, a block mixed, ribbon mixed, there are mixed between lines and mixed between strains and other forms. To create a mixed forest is a scientific afforestation method, a lot of benefits. Can improve the windproof performance. Broad-leaved pure forest, non-leaf surface in spring and winter, the role of protection is small; coniferous and broad-leaved forest, winter can also play a good protective effect. When the shrubs and shrubs are mixed, the tall canopy in the upper part and the dense shrubs under them have more significant windbreaking effects than the pure forests. At the same time, the mixture of shallow and deep rooted trees can prevent the wind from blowing down the trees. Can make full use of nutrients. Different species, deep roots