摘要
土地质量地球化学评价工作中评价单元是最基础的评价单位,对工作区评价单元进行划分是核心内容。以宣恩县晓关乡为例,采用评价区的土地利用现状图和地质背景图相叠加为主要方法,并按照采样单元格进行进一步分割和合并,能更合理真实地反映评价区的土地地球化学质量,为土地规划和农业种植结构调整提供准确的地球化学依据。
In geochemical assessment of land quality,the evaluation unit is the most basic evaluation unit,and the work area evaluation unit division is the core content. In this paper,Xiaoguan Town,Xuan＇en County,as an example,used that the present landuse map and the geological background map of the evaluation area are superimposed as the main method,and in accordance with the sampling cell for further segmentation and merging to reflect more rationally and truthfully the land geochemical quality of the evaluation area,and to provide accurate geochemical basis for land planning and agricultural planting structure adjustment.
出处
《资源环境与工程》
2017年第5期558-562,共5页
Resources Environment & Engineering
关键词
评价单元
地质界线
土地质量
图斑
宣恩晓关乡
evaluation unit
geological boundary
land quality
map spot
Xiaoguan Town
Xuan’en County
