当代城市草本植物景观发展前景以及半寄生植物在实践中的作用

针对当代城市草本植物景观种植发展前景中“自然式”和“生态”的手法，本文分析了其不能脱离城市之中实际情况以及在种植实践当中遇到的实际问题而抽象的存在的原因。由于物种之间客观存在着不同竞争能力，有着较高竞争能力的植物能够获取更多的环境资源。占据主导的位置而限制其他具有较弱竞争性植物的生长，发展，这样就会导致物种多样性的降低，会影响到自然式种植群落的实际效果。这在高土壤肥度的环境中最现得尤为明显。除了一些传统降低土壤肥度的方法，另外一种使用半寄生檀物如鼻花属植物（Rhinanthus）．通过它们的选择性寄生来调整群落中植物之间的竞争关系的方法被用于生境保护项目的实践当中。同时对于研究其他一些半寄生植物，如火焰草属植物（Castilleja）、马先蒿属植物（Pedicularis），在城市自然式草本种植当中的作用仍然存在着许多的空间。

Urban Herbaceous Vegetation Perspectives and the Role of Hemi-Parasites in Practice

With ‘Naturalistic＇ And ‘Ecologica!＇ Type Of Landscape Planting Design Approach In Contemporary Perspectives, This Paper Analysed ＇Ecological＇ Can＇T Be Decided Without The Distinctive Consideration In Specific Situation Especially In Urban Context And The Problems In The Practice Of Naturalistic Herbaceous Vegetation. Due To The Competitive Relationship Which Is Much Fiercely In High Soil Fertilizer Conditions, The Plants With High Competitive Ability Capture More Resources From Environment And Occupy The Dominant Location In The Community Suppressing The Growth And Development Of Other Less Competitive Plants, Leading The Decrease Of Species Diversity And Challenging The Appearance Of ＇Naturalistic＇ Type Of Vegetation, Except Some Traditional Methods To Decrease Soil Fertility, Another Kind Of Approach Using Hemi-Parasites Such As Rhinanthus Spp. To Adjust The Competitive Relationship Between Plant Species In The Community Through Hemi.Parasites＇ Selective Parasitism Has Been Practiced In Habitat Conservation Schemes. However, There Are Some Perspectives To Explore Some Other Hemi-Parasite Species （Castilieia And Pedieularis） And Test Their Roles In Urban Naturalistic Herbaceous Vegetation.