Complete data and code to generate datasets in: Occurrence and environmental data for aquatic plants of Minnesota from 1999-2018

A dataset (and multi-scale aggregations thereof) of point-level occurrences, relative abundances, and associated environmental data for macrophytes (freshwater plants) across Minnesota. The data encompass 3,194 surveys of 1,520 lakes and ponds performed over a 19-year timespan. A total of 372,091 points were sampled, across which 231 taxa were recorded. Macrophyte occurrence data and depth, as well as point-level relative-plant-abundance measures for a subset of surveys, were collated, cleaned, and joined to geospatial data and Secchi-depth measurements of water clarity, enabling light availability, a primary control on aquatic plant growth, to be estimated.

本数据集（及其多尺度聚合版本）收录了明尼苏达州全域内大型水生植物（macrophytes，淡水植物）的点位级发生记录、相对丰度数据及配套环境数据。该数据集涵盖了历时19年、针对1520个湖泊与池塘开展的3194次调查，共计采集372091个采样点位，在此范围内共记录到231个分类单元（taxa）。研究人员对部分调查中的大型水生植物发生数据、水深数据及点位级植物相对丰度指标进行了整理、清洗，并与地理空间数据及表征水体透明度的赛克深度（Secchi depth）测量值进行关联整合，由此得以估算对水生植物生长起主要调控作用的光照可获得性。