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为了生态防除外来入侵植物薇甘菊 ,在受害严重的深圳、东莞设置试验地 ,在人工除草 (包括全部薇甘菊 )后搭配种植 9个树种、1种灌木和 1种草本 ,并设置固定样方调查薇甘菊的生物量、盖度、密度及其周围人工种植的、野生的乔灌草植物生长量、盖度。初步研究表明 :(1)深圳试验地大叶相思、马占相思和东莞试验地米老排、樟树的冠幅增长最快 ,宜作为防除薇甘菊的造林树种 ;蟛蜞菊生长迅速 ,可在短期内有效抵御薇甘菊侵害 ;(2 )薇甘菊生物量与其它植物总盖度的关系符合负指数曲线模型 ;(3)薇甘菊盖度、密度与其它植物总盖度均呈极显著或显著负相关 ,能很好地拟合线性模型 ;(4 )据 (2 )、(3) ,其它植物总盖度以及包括其内的林木冠幅 (或郁闭度 )、草本层盖度 ,可作为评价一个植物群落抵御薇甘菊为害的能力或一种生态防除措施的效能的实用而方便的指标。种植当地适生乔灌草植物或促进野生植物生长 ,建立稳定的复层群落结构 ,可持续有效地抵御薇甘菊的侵害。
In order to ecologically control the exotic invasive plant Mikania micrantha, nine experimental trees, one shrub and one herb were planted in the severely affected Shenzhen and Dongguan sites after artificial weeding (including all Mikania micrantha) Biomass, coverage, density and the surrounding artificial cultivation, growth of wild arborvitae plants, cover. Preliminary studies showed that: (1) The crown length of C. mongolica and C. camphora in Shenzhen experimented to Acacia mangium, Acacia mangium and Dongguan test was the fastest, which should be used as the tree species to control Mikania micrantha. The rapid growth of A. tuberosa could be effective in the short term (2) The relationship between biomass of Mikania micrantha and its total plant cover conformed to the negative exponential curve model; (3) The coverage and density of Mikania micrantha were significantly or significantly negatively correlated with other plant cover (4) According to (2), (3), other plant cover, including the forest canopy width (or canopy density), the cover of the herb layer can be used to evaluate a plant community to resist A practical and convenient indicator of the ability of Mikania micrantha or a measure of ecological control. Planting local suitable for arborvitae shrub plants or to promote the growth of wild plants, the establishment of a stable complex community structure, sustainable and effective against Mikania intrusion.