An unmanned aerial vehicle visible light remote sensing image dataset of four forest dynamic plots in subtropical China

doi:10.17520/biods.2021299

Abstract

Abstract:

The evergreen broad-leaved forest is a zonal vegetation type in the subtropical regions of China. However, due to complex vertical structure and relatively dense canopy of subtropical forests, we are lack of reliable data in current canopy studies of this forest. Here we present a large dataset of visible light remote sensing images of four large-scale (> 20 ha) forest dynamic plots in Tiantongshan and Baishanzu of Zhejiang, and Dinghushan and Chebaling of Guangdong. These data were collected by unmanned aerial vehicle (UAV) equipped with visible light camera in August of 2014 or September of 2016. By combining the UAV data with ground survey data, we generated four data files for each plot: orthoimages and surface digital models with spatial resolution of ~5 cm, forest canopy height data with spatial resolution of 1 m, and data quality reports of the orthoimages. This dataset of evergreen broad-leaved forest provides significant supports for the studies in forest canopy ecology, biodiversity and ecosystem function.

Database/Dataset Profile

Title	An unmanned aerial vehicle visible light remote sensing image dataset of 4 subtropical forest dynamic monitoring plots in China
Authors	Zhaochen Zhang, Jianbo Hu, Qingsong Yang, Juyu Lian, Buhang Li, Xihua Wang, Wanhui Ye, Jian Zhang
Corresponding author	Jian Zhang (jzhang@des.ecnu.edu.cn)
Time range	August of 2014 or September of 2016
Geographical scope	29°48′ N, 121°47′ E, Tiantong National Forest Park, Zhejiang Province; 27°45′ N, 119°12′ E, Fengyangshan- Baishanzu National Nature Reserve, Zhejiang Province; 24°43′ N, 114°15′ E, Chebaling National Nature Reserve, Guangdong Province; 23°10′ N, 112°32′ E, Dinghushan National Nature Reserve, Guangdong Province
Spatial resolution	Orthoimages and the digital elevation model: ~5 cm, UAV-driven canopy height map: 1 m
File size	5.48 G
Data format	GeoTiff; CSV
Data link	http://dataopen.info/article/212 http://doi.org/10.24899/do.202107002 https://www.biodiversity-science.net/fileup/1005-0094/DATA/2021299.zip
Database/Dataset composition	The dataset consists of 16 data files in total. For each plot, it includes orthoimages, digital surface model, canopy height maps, and data quality reports of the orthoimages.

Key words: UAV-based remote sensing, near-surface remote sensing, evergreen broad-leaved forest, forest dynamics plot, forest canopy ecology

Zhaochen Zhang, Jianbo Hu, Qingsong Yang, Juyu Lian, Buhang Li, Xihua Wang, Wanhui Ye, Jian Zhang. An unmanned aerial vehicle visible light remote sensing image dataset of four forest dynamic plots in subtropical China[J]. Biodiv Sci, 2021, 29(9): 1181-1185.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2021299

https://www.biodiversity-science.net/EN/Y2021/V29/I9/1181

Figures/Tables 4

References 5

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相机设置 Camera setting	相关参数 Parameters
相机型号 Camera model	SONY NEX-5R
镜头 Camera lens	16?50 mm
光圈值 The aperture	f/2.8-f/5.6
曝光时间 Exposure time	1/1000
ISO 速度 ISO speed	ISO-400
焦距 Focal length	35 mm
最大光圈 Maximum aperture	1.69
有效像素 Effective pixels/megapixels	16.1
照片分辨率 Image resolution	4912 × 3264
图片格式 Image format	JPEG

相机设置 Camera setting	相关参数 Parameters
相机型号 Camera model	SONY NEX-5R
镜头 Camera lens	16?50 mm
光圈值 The aperture	f/2.8-f/5.6
曝光时间 Exposure time	1/1000
ISO 速度 ISO speed	ISO-400
焦距 Focal length	35 mm
最大光圈 Maximum aperture	1.69
有效像素 Effective pixels/megapixels	16.1
照片分辨率 Image resolution	4912 × 3264
图片格式 Image format	JPEG

样地名称 Site	经纬度 Location	年均温 Mean annual temperature (°C)	年降雨 Annual precipitation (mm)	海拔 Elevation range (m)	坡度 Slope (°)	样地大小 Area (ha)	物种数 Species richness (DBH ≥ 1 cm)	总个体数(密度) Total abundance of live trees (Density)
浙江天童山 Tiantongshan, Zhejiang	29°48′ N, 121°47′ E	16.2	1,735	304?603	13?50	20	152	94,603 (4,730/ha)
浙江百山祖 Baishanzu, Zhejiang	27°45′ N, 119°13′ E	12.8	2,342	1,407?1,646	20?35	25	155	224,483 (8,979/ha)
广东车八岭 Chebaling, Guangdong	24°43′ N, 114°15′ E	18.1	1,900	431?545	4?53	20	223	86,518 (4,316/ha)
广东鼎湖山 Dinghushan, Guangdong	23°10′ N, 112°31′ E	20.9	1,985	230?470	30?50	20	195	80,566 (4,028/ha)

样地名称 Site	经纬度 Location	年均温 Mean annual temperature (°C)	年降雨 Annual precipitation (mm)	海拔 Elevation range (m)	坡度 Slope (°)	样地大小 Area (ha)	物种数 Species richness (DBH ≥ 1 cm)	总个体数(密度) Total abundance of live trees (Density)
浙江天童山 Tiantongshan, Zhejiang	29°48′ N, 121°47′ E	16.2	1,735	304?603	13?50	20	152	94,603 (4,730/ha)
浙江百山祖 Baishanzu, Zhejiang	27°45′ N, 119°13′ E	12.8	2,342	1,407?1,646	20?35	25	155	224,483 (8,979/ha)
广东车八岭 Chebaling, Guangdong	24°43′ N, 114°15′ E	18.1	1,900	431?545	4?53	20	223	86,518 (4,316/ha)
广东鼎湖山 Dinghushan, Guangdong	23°10′ N, 112°31′ E	20.9	1,985	230?470	30?50	20	195	80,566 (4,028/ha)

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