Having brownish acidic waters, a high concentration of humic matter, and a small plant population.

无滋养的带有棕色酸性物质的水域, 腐殖物高度集中并有小型植物群的.

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Landscape design can decide plant arrangement and plant population structure, and reduce plant disease and pests.

植物种群结构, 同时对植物病虫害发生有着直接关系.

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