粤北岩溶山区自然环境调查分析

[目的]研究粤北岩溶山区的自然环境。[方法]通过收集粤北岩溶山区地貌、气候、土壤和植被资料,结合野外实地调查,对粤北岩溶山区的自然环境进行综合分析。[结果]粤北岩溶山区岩溶地貌广布;大部分属于中亚热带气候,雨热同期,降水充沛;石灰岩有大面积连片分布,溶蚀面积大;植被类型主要有高山草甸、亚高山矮林、常绿阔叶林、针阔混交林、马尾松林、杉木林、针叶混交林、经济林、喜钙原生阔叶林、山地草坡群落和灌木藤本群落,石灰岩植被有典型的石灰岩常绿落叶阔叶混交林、石灰岩灌丛和石灰岩丘陵山地草坡。[结论]该研究为粤北岩溶山区自然环境的保护提供了理论依据。

Investigation and Analysis of Natural Environment of the Karst Mountain Areas in Northern Guangdong

[Objective] The aim was to study the natural environment of Karst mountain areas in northern Guangdong.[Method] Through the collection of topography,climate,soil and vegetation data in the karst mountain areas of Northern Guangdong,combined with field investigation,the natural environment of Karst Mountain areas in northern Guangdong was analyzed.[Result] The karst topography of the area was widely distributed.Most places were in subtropical climate zone,with high temperature and rainfall in the same period,and abundant precipitation.There was a large area of contiguous distribution of limestone with dissolution area.Vegetations included typical limestone evergreen and deciduous broadleaved mixed forest,limestone shrub and grassy slopes in mountain and hill.Limestone vegetation had typical limestone mixed evergreen broadleaf forest,limestone shrub,limestone hilly mountain grass slope.[Conclusion] The study provided theoretical basis for the protection of natural environment of karst mountain areas in northern Guangdong.