stratified mixed stands 人工复层林
Spruce-Fir mixed stands 云冷杉针阔混交林
natural spruce-fir mixed stands 天然云冷杉林
mixed forest stands 混合林带
mixed larch-spruce-fir stands 落叶松云冷杉混交林
semi-natural mixed larch-spruce-fir stands 近天然落叶松云冷杉林
Roots in soil profile of the mixed stands show a well distribution.
混交林的根系在土壤剖面上，垂直分布趋于均匀。
Rice blast disease in the host populations of pure and mixed stands of rice varieties was studied and described.
描述了稻瘟病害在寄主单一和混合栽培条件下的发生规律。
Seabuckthorn and its mixed stands have similar intensity of soil water use, and there was a soil dry layer phenomenon in their stands.
沙棘及其混交林对土壤水分的利用强度相似，林地存在土壤干层现象。
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