城市绿地系统生物多样性保护的策略探讨

Strategies for the Conserration of Urban Greenspace Biodiversity

生物多样性是提高城市绿地系统生态功能的前提和城市多样化景观的基础。通过保护自然遗留地，建立绿色生态网络，开发利用地带性物种，尤其是乡土植物，并有节制地引进外域特色植物，扩大多样性物种的种群，增加绿地规模，促进公园和环城绿带的自然化，营造生物多样性高的复层群落结构，形成具有地域性植被特征的城市生物多样性格局，提高绿地系统的生物多样性。

Biodiversity is not only the foundation of diverse urban landscape,but also the prerequisite for improving ecological function of urban greenspace system.In order to improve biodiversity in urban greenspace system,some strategies were proposed as follows:setting up the green network within and around cities,exploiting the zonal plants,in particular the native plants,introducing suitably foreign characteristic plants,expanding the population of diverse species in green land,increasing the green land scale,naturalizing the parks and the Green Belts,establishing multiple structure of biodiversity featured with zonal vegetation.