基于GIS技术的水源地土壤养分评价——以滩小关水源地为例

Based on GIS Technology Appraisal Water Source Soil Nutrient

以GIS技术和传统技术相结合,定性描述与定量分析相结合,用系统论和对比分析的方法调查、分析、评价了滩小关水源地土壤养分质量状况,并针对其中存在的问题提出了一些建议。其中,利用GPS快速准确地测到带有坐标记录的采样点,利用MAPGIS对采样点进行空间插值获取土壤养分等级空间分布图,并对其空间分布特征进行了科学的分析。结果表明:研究区土壤养分含量缺乏,尤其氮磷养分不足,有机质含量不高。

The nutrient condction in the soil of Tanxiaoguan Waer Source was investigated,analyzed and appraised with GIS and traditional technique,combined with the quantitative and qualitative methods,the system theory and the contrast analysis methods.existence problem was put forward. fastly and accurately surveyed.The sampling spot was with the coordination record of the GPS.The space distribution map of nutrient rank in soil was drawn up with MAPGIS and was scientifically analyzed.The result indicated that the nutrient content was lacked,the nitrogen and phosphorus nutrient was especially insufficient,the organic content was not high in the area.