一般影响
卡西里姜能在自然森林中形成茂密的生长，窒息原生植物幼苗，阻止他们建立族群。这可能导致本地森林栖地和生态系统的改变，和天然森林群落的退化。在某些情况下，会完全阻止森林再生。(Environment B.O.P).
1954年第一次发现在夏威夷火山国家公园，现已遍布夏威夷所有的岛屿。(Smith, 1985) 它展现侵略性生长与耐荫性，而且形成在下层植物中的未受到干扰的位置上的密集植群，在开放与完全遮荫的 ohia-lehua(Metrosideros polymorphaGaud.) 雨林以及在开放的栖息地与国家公园的森林周边。它会阻碍森林再生，威胁自然森林的活力 (Anderson and Gardner 1999) 。
以飞机为基础的分析发现姜在夏威夷的 Metrosideros森林覆盖减少大量的氮，稍后的地面采样调查也证实这一点。这种自然生态系统的改变过程，会改变生活在这样一个栖息地的动物类型。
地点特有的影响：New Zealand 
竞争: Dense rhizomes prevent growth of native flora. Coromandel (New Zealand)
竞争: Dense rhizomes prevent growth of native flora. Coromandel (New Zealand)
改变营养机制: Alters nutrient cycling.
物理干扰: Alters physical processes such as erosion and stream flow. Auckland Region (New Zealand)
竞争: Dense rhizomes prevent growth of native flora. Auckland Region (New Zealand)
改变营养机制: Alters nutrient cycling.
物理干扰: Alters physical processes such as erosion and stream flow. Bay of Plenty Region (New Zealand)
竞争: Forms dense colonies in native forests, smothering young native plants as well as preventing native seedling establishment. This leads to the alteration of both the function and structure of native forest and in some instances results in the total death of the forest. Northland Region (New Zealand)
竞争: Dense rhizomes prevent growth of native flora. Northland Region (New Zealand)
改变营养机制: Alters nutrient cycling.
物理干扰: Alters physical processes such as erosion and stream flow. Taranaki Region (New Zealand)
改变营养机制: Alters nutrient cycling.
物理干扰: Alters physical processes such as erosion and stream flow. Waikato Region (New Zealand)
改变营养机制: Alters nutrient cycling.
物理干扰: Alters physical processes such as erosion and stream flow. Wellington Region (New Zealand)
改变营养机制: Alters nutrient cycling.
物理干扰: Alters physical processes such as erosion and stream flow. Marlborough Region (New Zealand)
改变营养机制: Alters nutrient cycling.
物理干扰: Alters physical processes such as erosion and stream flow. Tauranga (New Zealand)
改变营养机制: Alters nutrient cycling.
物理干扰: Alters physical processes such as erosion and stream flow. Buller District (New Zealand)
改变营养机制: Alters nutrient cycling.
物理干扰: Alters physical processes such as erosion and stream flow. Azores (Portugal)
栖地改变: The impacts of the native forest is almost complete replacement of the understory and interference with the recruitment of canopy species. Conteira (H. gardnerianum) is also invading higher altitude grassland communities.
经济 /民生: Conteira (H. gardnerianum) causes problems for forestry operations due to the density levels.
|
