Standardized and Combined Aerial Insect and Disease Surveys, 1985 to present

Spatial data (shapefile) of all aerial defoliation surveys in Vermont from 1985 to the latest data available merged together into one dataset with a subset of fields. Data prior to 1995 were not always digitized, and may be incomplete before that year.

本数据集整合了1985年至最新可用数据周期内，美国佛蒙特州所有航空落叶调查的空间数据（shapefile），并筛选部分字段整合为单一数据集。1995年以前的数据并非均完成数字化处理，该年份之前的数据集或存在不完备情况。