漯河市城区段沙河、澧河沿岸本底植被调研初报

The preliminary report of investigation on background vegetation of Sha River and Li River in urban area of Luohe City

通过对漯河市城区段沙河、澧河沿岸本底植被普查,分析了城区段沙河、澧河沿岸的绿地类型、植被现状、物种组成和群落结构.结果显示,城区段两河沿岸植物覆盖度高,绿地量大,总盖度在80%以上,有种子植物63科,111属161种.研究还发现,滨河区内人工植物群落众多,物种地方特色不浓,多为常用园林绿化树种;沿两河城郊边缘区次生自然植被中乔、灌、草混迹杂生,生态比较脆弱,行逆向演替.针对性提出了滨水绿地中植物群落的营造与滨水城市物种多样性保护的设想.

Based on the census of baseline vegetation of the coastal water of Sha River and Li River in Luohe urban area, the greenbelt type, the prent vegetation, the species composition and the community structure were analyzed. The results shows that the degree of vegetation coverage on the banks of the rivers in urban area is high. The vegetation quantity is abundant. The total coverage is over 80%. There are 161species of seed plants, belonging to 111 genus and 63 families. There are many artificial plant communities in Binhe Area. The species have little regional features. Many are usual landscape tree afforestation species. The secondary natural vegetation is shrub with shrub, arbor and grass at the suburban fringe of banks of Sha River and Li River. So the ecological system is fragile. The vegetation shows reversion succession. The assumptions on how to construct the plant community in waterfront landscape and how to protect the species diversity in waterfront city are put forward.