Restoration and reconstruction of the forest vegetation in the Mufushan-Yanziji Mountains,Nanjing

Based on field survey, AutoCAD technology, principles and methods of vegetation ecology and restoration ecology, the following problems about restoration and reconstruction of the forest vegetation of Mufushan Yanziji Mountains in Nanjing are studied: (1) According to the principle and system of Chinese Vegetation , the vegetation of Mu Yan Mts is classified, including 3 vegetation type groups, 5 vegetation types, 5 vegetation subtypes, 8 formation groups and 12 formations The 12 formations are: Pinus thunbergii forest, Platycladus orientalis forest, Pinus massoniana forest, Quercus fabri forest, Quercus acutissima forest, Broussonetia papyrifera forest, Celtis sinensis forest, Pteroceltis tatarinowii forest, Robinia pseudoacacia forest, Phyllostachy pubescens forest, Celtis sinensis + Paliurus hemsleyana + Spirea chinensis shrub, and Broussonetia papyrifera shrub (2) The map (1:5000) of the vegetation formations of Mu Yan Mts is compiled, and the areas of the formations are calculated (3) There are mainly 10 forest formations in Nanjing, i e , Cyclobalanopsis glacuca + Quercus variabilis forest, Liquidambar formosana forest, Quercus fabri forest, Quercus variabilis forest, Quercus acutissima forest, Pistacia chinensis + Dalbergia hupeana forest, Celtis sinensis + Broussonetia papyrifera forest, Robinia pseudoacacia forest, Pinus massoniana forest and Pinus thunbergii forest The successional relationships among the 10 formations are analyzed, and the secondary succession model of the forest vegetation in Nanjing is established (4)According to the above research results, the measures for restoration and reconstruction of the forest vegetation of Mu Yan Mt are proposed, the changes of the vegetation type composition are predicted after the measures are put into effect, and the restoration and reconstruction planning map (1:5000) of the vegetation types of Mu Yan Mt is made