Analysis of Species Diversity Protection and Ecological Development in Urban Parks——Taking Ulanqab City Park as an Example
In order to analyze the diversity of species composition in urban parks in northwest China,6 parks in Ulanqab City were investigated by index analysis method.The results showed that the Margalef index of all the six parks except Baiquanshan Park was tree layer＞shrub layer.Yushuwan Park had the lowest species richness..The ecological dominance index of tree layer and shrub layer is generally high,and the Simpson index of tree lay-er in Bawanghe Park has the biggest difference.Shannon-Wiener/Simpson index of species diversity tends to be the same to some extent,and the uncertainty difference of tree and shrub layer is large.The analysis of average density shows that the plant planting density in the park is generally too high.The prominent problems of limited plant selection,unreasonable design concepts,and insufficient plant species allocation in the construction of Ulan-qab City Park have been exposed.Based on this,it is proposed that in the construction of parks in this area and the later landscape improvement work,measures should be taken to maintain and restore plant diversity,so as to play the important role of parks in protecting urban landscape and promoting the healthy and sustainable develop-ment of urban ecology.
urban parksgarden plantsspecies diversityindex analysiscountermeasures and suggestions
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