Water — Natural water collection point for irrigation in Loir-et-Cher

Positioning of water sampling points in the natural environment for irrigation.These samples can be taken from the soil (neap or karst circulation), at the emergence of a spring, or in the surface water network (river or water body).For the sake of homogeneity, the same type of environment is used for all samples.

灌溉用水自然环境水样采集点位的布设方案。该类水样可采集自土壤（滞流循环或岩溶循环）、泉水出露点或地表水系（河流或水体）。为确保样本的均一性，所有水样均采自同一类型的自然环境。