Study on the Soil and Plant Community Characteristics at an Early Ecological Restoration Stage in an Abandoned Quarry

摘要

Taking an abandoned quarry located in Chengang town of Zhoushan city as an example and on the basis of investigating into vegetation and soil condition, the physicochemical properties of soil and plant community characteristics are analyzed. The results indicate: the physicochemical properties of the four types of the disused lands of the quarry are very poor; the nutrient condition of abandoned quarry area is also poor, they are the main limiting factor to ecological restoration. The main types of vegetation in this area are grassland. The woody species are rather singular with only 5 families, 7 genera and 7species, but the herb communities are much more abundant with 5 families, 24 genera and 27species in total. The changes of α diversity indexes to four types of the abandoned lands of quarry are quite different, the order of the species richness indexes to different types of the abandat quarry from big to small was spoil mound, stone-soil stack, worked-out area and terrace for crush. While the species diversity and species richness indexes are worked-out area, stone-soil stack, spoil mound and terrace for crush.