Vegetation characteristics and community dynamics in the mine slope rehabilitation
Yi Yang, Wang Yue, Gu Zaiyuan, Qi Youxiang, Gao Jiarong
1. College of Soil and Water Conservation, Beijing Forestry University, 100083, Beijing, China; 2. Beijing Fountain of Green Eco-Tech Co. , Ltd. , 100083, Beijing, China; 3. Jiangsu Fountain of Green Eco-Tech Co. , Ltd. , 214000, Wuxi, Jiangsu, China
In order to understand the growth of planted vegetation in the slope ecological protection engineering, we took an actual project as study case, by using the technology of planting material spraying (PMS) as application background of mine slope greening, and conducted tracking survey on three slopes with different aspects and gradients within five years after vegetation planting concerning the main community characteristics like species, coverage and height. The results show that: 1)During the first year since vegetation planting, the general quantitative characteristics of plant vegetation was simple composition and inconspicuous vertical structure. Robinia pseudoacacia, Lespedeza bicolor, Cynodon dactylon, Medicago sativa and Festuca elata had better growth than other species. 2) After five years of vegetation rehabilitation, the vegetation restoration effect was good. The diversity and richness were increased and the dominance index decreased, and uniformity tended to be stable. Vegetation community with a strong soil fixing effect was formed as perennial herbs + L. bicolor + R. pseudoacacia. The development of grass root system was good. Legume species presented a dominate advantage. 3) During the wintering and summering periods, part of F. elata showed lodging phenomenon. A small amount of R. pseudoacacia leaves withered. Compared with other plants, the mortality of C. bipinnata was higher.Most plants had a good performance of resisting extreme weather conditions. The plant community was gradually formed with a strong soil fixing effect and good landscape effect.
易扬1,王越2,辜再元2,祁有祥3,高甲荣1. 矿山边坡生态建设的植被特征与群落动态变化[J]. 中国水土保持科学, 2014, 12(4): 51-56.
Yi Yang, Wang Yue, Gu Zaiyuan, Qi Youxiang, Gao Jiarong. Vegetation characteristics and community dynamics in the mine slope rehabilitation. SSWCC, 2014, 12(4): 51-56.