福建省2019年土地覆被类型4846个样本点数据集的内容与调查过程

4868 Sample Plots Dataset for Land Cover Validation in Fujian Province of China(2019)——Content and Procedure

土地覆被调查数据对于各种遥感产品的验证及后续研究具有重要意义。本文详细介绍2019年7月对福建省各地表覆被类型的调查过程。主要过程分为地类分级系统的确定、外业采集以及室内数据处理。本次调查共采集4,846个样本点,包括1,057个针叶纯林、164个针叶混交林、1,313个阔叶纯林、141个阔叶混交林、91个针阔混交林、808个竹林、10个红树林、226个纯灌木、30个混交灌木、35个草地、145个水田农作物、223个非水田农作物、270个人造地表、270个水体、32个裸土以及31个裸露岩石样本点。该数据集包括4,846个样本点类型数据和实地调查时拍摄的照片资料,数据量为39.1 MB,样本点类型数据存储为.kmz和.shp格式,其数据量为7.05 MB。

The land cover survey data is of fundamental importance to the validation of land cover classification products. The survey process of land cover types in Fujian province in 2019 is introduced in this paper. The process includes three steps, including designing of land cover type system, proceeding of field survey and inspecting of field data indoor. A total of 4,846 field points were collected, including 1,057 for pure coniferous forest, 164 for mixed coniferous forest, 1,313 for pure broadleaf forest, 141 for mixed broadleaf forest, 91 for conifer-broadleaf mixed forest, 808 for bamboo, 10 for mangrove, 226 for pure shrub, 30 for mixed shrub, 35 for grassland, 145 for paddy field crop, 223 for non-paddy field crop, 270 for artificial surface, 270 for water, 32 for bare soil and 31 for bare rock. The shared files with data size of 39.1 MB includes datasets of 4,846 sampling points and photos taken in situ survey. Sample points are archived in.kmz and.shp respectively with a total data size of 7.05 MB.