干旱区生态环境知识资源中心(Arid): Population Structure and Spatial Distribution Pattern of Populus euphratica Riparian Forest Under Environmental Heterogeneity Along the Tarim River, Northwest China

Arid

DOI	10.3389/fpls.2022.844819
	Population Structure and Spatial Distribution Pattern of Populus euphratica Riparian Forest Under Environmental Heterogeneity Along the Tarim River, Northwest China
	Yusup, Asadilla; Halik, Umut; Abliz, Abdulla; Aishan, Tayierjiang; Keyimu, Maierdang; Wei, Jianxin
通讯作者	Halik, Ü
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2022
卷号	13
英文摘要	Populus euphratica Oliv. (Euphrates poplar), as the dominant tree species of desert riparian forests along the Central Asian inland rivers, plays a critical role in protecting arid land ecosystems. In recent decades, climate change and excessive water resources utilization activities have led to the environmental degradation of desert riparian forests along the Tarim River in northwest China. Understanding the forest stand structure and spatial distribution pattern provide important guidance for monitoring forest dynamics in support of sustainable management. However, few studies have examined how riparian forests stand attributes differ in response to environmental heterogeneity. In this study, terrestrial laser scanning (TLS) was applied to acquire a total of 1648 individual P. euphratica tree's 3D structure attributes within 18 plots along the upper, middle, and lower reaches of the Tarim River, which included tree height (TH), diameter at breast height (DBH), crown diameter (CD), crown projection area (CPA), stand density index (SDI), age structure ratios, and spatial pattern. The results showed that the average tree segmentation and structure determination accuracies of TLS were 93.2 and 94.6%. From the upper to the lower reaches, the average TH and CD decreased by 3.8 and 0.3 m, while the DBH increased by 4.2 cm. The SDI and CPA exhibited the following order: upper reaches (454 n ha(-1), 82.3%) > middle reaches (382 n ha(-1), 67.3%) > lower reaches (263 n ha(-1), 39.1%), the differences were significant at 0.05 level. The population age structure changed from growing population in the upper reaches to stable population in the middle and a temporarily stable population in the lower reaches. The pair correlation g(r) function determined random distribution pattern in the upper reaches [g(r) = 1.2], an aggregated pattern in the middle [g(r) = 3.1], and lower reaches [g(r) = 9.7]. The decline in groundwater depth and soil moisture increased aggregated distribution pattern (R = 0.67 and 0.56, P < 0.05) of the P. euphratica along the mainstream of Tarim River. The results enrich our understanding of the current development stage of P. euphratica, which is important for optimizing management strategies and realizing the sustainability of floodplain ecosystems.
英文关键词	LiDAR terrestrial laser scanning (TLS) pair correlation function kernel density Populus euphratica Tarim River
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000819364500001
WOS关键词	LOWER REACHES ; FLOODPLAIN FORESTS ; STAND STRUCTURE ; GROWTH ; REGENERATION ; COMPETITION ; DYNAMICS ; TERRESTRIAL ; RESTORATION ; CHALLENGES
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392854
推荐引用方式 GB/T 7714	Yusup, Asadilla,Halik, Umut,Abliz, Abdulla,et al. Population Structure and Spatial Distribution Pattern of Populus euphratica Riparian Forest Under Environmental Heterogeneity Along the Tarim River, Northwest China[J],2022,13.
APA	Yusup, Asadilla,Halik, Umut,Abliz, Abdulla,Aishan, Tayierjiang,Keyimu, Maierdang,&Wei, Jianxin.(2022).Population Structure and Spatial Distribution Pattern of Populus euphratica Riparian Forest Under Environmental Heterogeneity Along the Tarim River, Northwest China.FRONTIERS IN PLANT SCIENCE,13.
MLA	Yusup, Asadilla,et al."Population Structure and Spatial Distribution Pattern of Populus euphratica Riparian Forest Under Environmental Heterogeneity Along the Tarim River, Northwest China".FRONTIERS IN PLANT SCIENCE 13(2022).