Evaluating the Ecological Services of Roof Greening Plants in Beijing Based on Functional Traits

摘要: Selecting suitable species to enhance ecological functions is crucial for improvements in the planning and design of roof greening maintaining sustainable urban development, especially rapidly urbanized areas. Assisted by field trips studies, present project assessed 207 plant used Beijing based on their key functional traits. The results indicate that regulating, cultural, supplying, supporting differed significantly among families study area. Rosaceae have higher levels overall than other species, a large number Compositae lower-level functions. Compared families, Araliaceae Nyctaginaceae mean values cultural highest function value 37. Ulmaceae, Sapindaceae, Ginkgoaceae, Berberidaceae, Aceraceae supporting, values. Amaranthaceae, Umbelliferae, Lamiaceae, Saxifragaceae, Ericaceae, Gramineae lower existing includes some pitfalls with respect composition as well selection does not consider following measures could be proposed increase functions: (1) Increasing plants shallow roots strong adaptation traits conditions; (2) Enriching communities diverse high functions; (3) Carrying out rational management detailed objective data species. Future studies should focus specifying