干旱区生态环境知识资源中心(Arid): Quality assessment of shrub observation data based on TLS: A case of revegetated shrubland, Southern Qinghai-Tibetan Plateau

Arid

DOI	10.1002/ldr.4554
	Quality assessment of shrub observation data based on TLS: A case of revegetated shrubland, Southern Qinghai-Tibetan Plateau
	Tian, Jiarong; Li, Haidong; Sun, Xinyu; Zhou, Youfeng; Ma, Weibo; Chen, Junsong; Zhang, Jing; Xu, Yannan
通讯作者	Li, HD
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2023
卷号	34 期号:5 页码:1570-1581
英文摘要	Vegetation restoration is one of the effective measures to deal with land degradation, and shrubs, as the pioneer plants, can improve soil conditions and accelerate the recovery of desertification. In recent decades, single-scan (SS) and multiple-scan (MS) modes have been widely used for forest inventories by terrestrial laser scanner (TLS) but TLS-based shrub observation, and data quality uncertainties are less studied, especially in eco-fragile regions with high survey costs and harsh environmental conditions. In this study, two shrub sample plots with different topographic characteristics were selected as the study area in the southern Qinghai-Tibetan Plateau. We compared the basic phenotypic parameters (BPPs) under SS and MS mode, including number (N), height (H) and crown width (CW), to evaluate the potential of SS mode in extracting vegetation attributes. Through the distribution of shrub information loss rate (L) with distance and shrub height, the limitations of SS mode in obtaining data were discussed. By combining the topographic features of scanning spots, topographic relief (T) and L, we provided reasonable opinions on TLS collection mode, setting of scanning spots, and other operational aspects. The results indicated that: (1) SS mode has good applicability in shrub observation under different terrain characteristics. (2) The height distribution of the shrub is the main factor affecting the quality of data collection, and the information loss bias caused by distance should be considered only in the shrub plots with uniform height distribution. (3) T has an impact on shrub growth but has no effect on the quality of data acquisition (no significant correlation between T and L). These findings will provide technical support for TLS data collection on ecological restoration of degraded grassland dunes.
英文关键词	basic phenotypic parameters information loss shrub single-scan mode terrestrial laser scanning topographic relief
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000899084100001
WOS关键词	TERRESTRIAL LIDAR ; GRASSLAND ; REGISTRATION ; RESTORATION ; DIAMETER
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397729
推荐引用方式 GB/T 7714	Tian, Jiarong,Li, Haidong,Sun, Xinyu,et al. Quality assessment of shrub observation data based on TLS: A case of revegetated shrubland, Southern Qinghai-Tibetan Plateau[J],2023,34(5):1570-1581.
APA	Tian, Jiarong.,Li, Haidong.,Sun, Xinyu.,Zhou, Youfeng.,Ma, Weibo.,...&Xu, Yannan.(2023).Quality assessment of shrub observation data based on TLS: A case of revegetated shrubland, Southern Qinghai-Tibetan Plateau.LAND DEGRADATION & DEVELOPMENT,34(5),1570-1581.
MLA	Tian, Jiarong,et al."Quality assessment of shrub observation data based on TLS: A case of revegetated shrubland, Southern Qinghai-Tibetan Plateau".LAND DEGRADATION & DEVELOPMENT 34.5(2023):1570-1581.