四川省草原有害生物普查草原和鼠害底图获取方法

Method for Obtaining Base Map of Grassland and Rodent in General Survey of Grassland Pests in Sichuan Province

针对当前草原有害生物普查工作中没有草原、鼠害本底数据和图件可用的现状,本文提出了自然资源部向社会免费开放的2020版30m全球地表覆盖数据的获取途径,并计算出各地的草原面积;提出了草原鼠害宜生区的计算方法和结果,以及基础地理数字图件的获取要求和方法等,为草原有害生物普查工作的前期路线规划和后期分布图制作提供了数据基础和技术支持。

In view of the current situation that there is no grassland and rodent background data or maps available in the general survey of grassland pests, this paper puts forward the way to obtain the 2020 version of 30 m global surface coverage data, which is free and open to the society by the Ministry of Natural Resources, and calculates the grassland area in various regions;The calculation method and results of grassland rodent, as well as the inhabitable area acquisition requirements and methods of basic geographic digital maps are put forward;This paper provides data basis and technical support for the early route planning and later distribution map making of grassland pest census.