基于CSCS的中国现存自然植被分布研究

摘要

Vegetation type is the basis for the study of natural vegetation.The CSCS (comprehensive and sequential classification system) model reflects the potential natural vegetation types and their spatial distribution.Therefore,research on the spatial distribution of existing natural vegetation types based on the CSCS model has practical significance in grassland resource monitoring and animal husbandry production management.Based on the potential natural vegetation map of China produced by the CSCS model,the distribution was analysed and divided into typical areas of existing natural vegetation by combining it with the Chinese vegetation map and DEM (digital elevation model) data.This is the first time that the existing natural vegetation distribution map and the typical area of existing natural vegetation distribution map of China have been produced.It will play an important role in the sampling position selection of CSCS-based grassland types in field investigations and in the study of their plant biological characteristics.%植被类型是研究自然植被的基础,CSCS模型的模拟结果反映潜在自然植被的类型及其空间分布.因此,进一步研究基于CSCS模型的现存自然植被类型的空间分布,对CSCS模型在天然草地资源动态监测与评价、草地畜牧业生产管理等方面的应用具有现实意义.在基于CSCS模型确定的中国潜在自然植被图的基础上,结合1∶100万中国植被图和DEM数据,研究了现存自然植被分布范围,并划分了现存自然植被典型区,首次制作出基于CSCS的中国现存自然植被分布图和现存自然植被典型区分布图,对指导CSCS草地类型外业调查样点位置的选择及不同类型植物生物学特征的研究具有重要作用.