广西自然保护区分布特征与类型结构分析

【目的】研究广西自然保护区分布特征与类型结构现状,为广西自然保护区建设与发展提供参考依据。【方法】通过现场调查与资料收集、卫星遥感解译、数理统计相结合,研究和分析当前广西自然保护区数量、面积、区域分布和类型结构等现状和特征。【结果】广西自然保护区数量为77处,保护区陆域面积仅占国土面积的5.64%;地域分布上侧重于广西西部的百色市和崇左市,以及北部的桂林市,东部和南部偏少;类型有5种,结构上以森林生态系统为主。【结论】广西自然保护区的数量偏少,面积偏小;地域分布上西部和北部较多,中部、东部和南部较少;类型结构上,森林生态系统类型比例大,内陆湿地类型以及古生物遗迹等类型缺乏。

Analysis on Spatial Distribution and Type of Guangxi Nature Reserves

Objective] According to the investigation on the current spatial distribution and type of Guangxi nature reserves,some suggestions for the construction and development of Guangxi nature reserves were given.Methods] The methods of field survey,data collection and the decipherment of satellite remote sensing,along with statistics were used for study on the present situation,characteristics of the quantity,area,spatial distribution,and type structure of Guangxi nature reserves.Results] The land area of 77 Guangxi nature reserves only accounts for 5.64% of the total area.Nature reserves mainly locate in Baise,Chongzuo and Guilin,while are less in the eastern and southern part of Guangxi.There are 5 types of nature reserves in Guangxi.The forest ecological system is the predominant type.Conclusion] Quantities and areas of Guangxi nature reserves are inadequate.Nature reserves mainly are disturbed in western and northern part of Guangxi,while are less in the central,eastern and southern part.The forest ecological system is predominant type,while the inland-wetland and the fossils type are lacking.