干旱区生态环境知识资源中心(Arid): Changes in Morphology of Nitraria tangutorum Nebkhas at different Successional Stages in the Oasis-Desert Ecotone, Northwest China

Arid

DOI	10.15244/pjoes/155196
	Changes in Morphology of Nitraria tangutorum Nebkhas at different Successional Stages in the Oasis-Desert Ecotone, Northwest China
	Liu, Meiying; Wei, Yajuan; Li, Wenlong; Wang, Ji
通讯作者	Wei, YJ
来源期刊	POLISH JOURNAL OF ENVIRONMENTAL STUDIES
ISSN	1230-1485
EISSN	2083-5906
出版年	2023
卷号	32 期号:2 页码:1253-1264
英文摘要	Nebkhas play a tremendous role in maintaining the ecological functions of deserts and in slowing land desertification processes. Numerous nebkhas are distributed in the northwestern edge of the Ulan Buh desert, Nitraria tangutorum nebkhas are the most typical dunes in this area. However, our knowledge of the effect of those factors on the succession of nebkhas, including their succession in different sandy land types, is limited. The goal of this study was to reveal their factors influencing the morphological characteristics of N. tangutorum nebkhas in different sandy land types (shifting sandy land, semi-fixed sandy land, and fixed sandy land) in the Ulan Buh desert. Our results showed the densities of N. tangutorum nebkhas were 34, 51, and 77 dunes per ha in the shifting, semi-fixed, and fixed sandy lands, respectively. The density of N. tangutorum nebkhas gradually increased and N. tangutorum nebkhas started to degenerate with the increasing fixation of sandy land. The successional stage had significant effects on all the morphological characteristics, and sandy land types had significant effects on the length (L), height (H), volume (V), horizontal scale (D) and ratio of width to height (H/W). Almost all of the morphological parameters of N. tangutorum nebkhas were correlated at different successional stages, indicating a strong interrelationship among the morphological parameters of nebkhas. The successional stages of N. tangutorum nebkhas had significant effects on the density of branch (M), height (h), coverage (C), deadwood rate (DR), and length of new branches (LB) of the N. tangutorum shrub. The M, h, C, and LB first increased and then decreased, and DR increased with the succession of N. tangutorum nebkhas. These results indicated that we should focus on nebkhas succession to ensure the ecological stability of oases in a dessert.
英文关键词	N tangutorum nebkhas morphological characteristics successional stage sand fixing capacity sandy land types
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001020663500023
WOS关键词	PHYTOGENIC NEBKHAS ; SPECIES RICHNESS ; WIND EROSION ; GROWTH ; MOUNDS ; DYNAMICS ; STEPPES ; DUNES ; BASIN
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398151
推荐引用方式 GB/T 7714	Liu, Meiying,Wei, Yajuan,Li, Wenlong,et al. Changes in Morphology of Nitraria tangutorum Nebkhas at different Successional Stages in the Oasis-Desert Ecotone, Northwest China[J],2023,32(2):1253-1264.
APA	Liu, Meiying,Wei, Yajuan,Li, Wenlong,&Wang, Ji.(2023).Changes in Morphology of Nitraria tangutorum Nebkhas at different Successional Stages in the Oasis-Desert Ecotone, Northwest China.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,32(2),1253-1264.
MLA	Liu, Meiying,et al."Changes in Morphology of Nitraria tangutorum Nebkhas at different Successional Stages in the Oasis-Desert Ecotone, Northwest China".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 32.2(2023):1253-1264.