气候变化领域集成服务门户(CCPortal): UAV Monitoring Topsoil Moisture in an Alpine Meadow on the Qinghai-Tibet Plateau

CCPortal

DOI	10.3390/agronomy13092193
	UAV Monitoring Topsoil Moisture in an Alpine Meadow on the Qinghai-Tibet Plateau
	Sang, Yazhuan; Yu, Shangzhao; Lu, Fengshuai; Sun, Yi; Wang, Shulin; Ade, Luji; Hou, Fujiang
发表日期	2023
EISSN	2073-4395
卷号	13 期号:9
英文摘要	Soil moisture is one of the most critical soil components for sustained plant growth and grassland management. Unmanned aerial vehicles (UAVs) are gradually replacing manual labor in various aspects of grassland management. However, their potential for monitoring soil moisture in grasslands remains largely unexplored. High vegetation coverage and frequent rainfall in the Tibetan Plateau pose a challenge for personnel working in alpine meadows. To explore the potential of UAV technology for soil moisture detection in these areas, we conducted a rainfall reduction experiment in Maqu County, China to understand the relationships among soil moisture, vegetation coverage, and visible-light images captured using UAVs. The findings indicated a significant correlation between topsoil moisture and the brightness values in visible-light images acquired by UAVs (p < 0.0001). These results demonstrated that visible-light brightness, vegetation coverage, rainfall reduction, and aboveground biomass can be utilized for estimating the topsoil moisture using these images (y = -0.2676 x Brightness + 0.2808 x Vegetation coverage -0.1862 x Rainfall reduction + 0.1357 x Aboveground biomass + 37.77). The model validation worked well (E = 0.8291, RS = -3.58%, RMA = 10.38%, RMSE = 3.5878, Pearson's r = 0.9631, PSI = 0.0125). This study further addresses the problem of topsoil moisture measurement in flat areas of mesoscale moist alpine meadows and is expected to facilitate the widespread adoption of UAV use in grassland ecology research.
关键词	alpine meadows brightness values vegetation coverage soil moisture
英文关键词	SOIL-MOISTURE; SPECTRAL REFLECTANCE; VEGETATION COVER; WATER; GRASSLAND; PERMAFROST; INTENSITY; DYNAMICS; IMPACTS; ALBEDO
WOS研究方向	Agronomy ; Plant Sciences
WOS记录号	WOS:001072883800001
来源期刊	AGRONOMY-BASEL
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283415
作者单位	Lanzhou University; Nantong University
推荐引用方式 GB/T 7714	Sang, Yazhuan,Yu, Shangzhao,Lu, Fengshuai,et al. UAV Monitoring Topsoil Moisture in an Alpine Meadow on the Qinghai-Tibet Plateau[J],2023,13(9).
APA	Sang, Yazhuan.,Yu, Shangzhao.,Lu, Fengshuai.,Sun, Yi.,Wang, Shulin.,...&Hou, Fujiang.(2023).UAV Monitoring Topsoil Moisture in an Alpine Meadow on the Qinghai-Tibet Plateau.AGRONOMY-BASEL,13(9).
MLA	Sang, Yazhuan,et al."UAV Monitoring Topsoil Moisture in an Alpine Meadow on the Qinghai-Tibet Plateau".AGRONOMY-BASEL 13.9(2023).