气候变化领域集成服务门户(CCPortal): Sandstorms cause shrinkage of Haloxylon ammodendron shrubs and limit their self-renewal

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DOI	10.1007/s40626-022-00242-4
	Sandstorms cause shrinkage of Haloxylon ammodendron shrubs and limit their self-renewal
	Shi, Sheng-bo; Zhou, Dang-wei; Wang, Fang-lin; Shi, Rui; Sun, Tao; Li, Tian-cai; Ma, Jia-lin; Wan, Xiang; Ma, Jian-ping; Tang, Jing-nian
通讯作者	Shi, SB (通讯作者)，Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biol, 23 Xinning Rd, Xining 810001, Qinghai, Peoples R China.
发表日期	2020
ISSN	2197-0025
英文摘要	Haloxylon ammodendron is an excellent windproof and sand-fixing species whose shrubs are widely cultivated in arid desert areas of northwest China but are now at risk of degradation and shrinkage. Using the chlorophyll fluorescence image analysis technique, the response of photosystem II (PSII) photochemical efficiency and non-photochemical quenching capacity to sediment-carrying wind and sand-free wind (both 12 m s(-1)) lasting for 10, 20, and 40 min were studied with seedlings in a wind tunnel. The results indicated that the sand-free wind had little influence on the maximum quantum efficiency of PSII photochemistry, F-v/F-m, which was approximately 0.80 on average; however, the F-v/F-m decreased over exposure time in the sediment-carrying wind group, with values smaller than those in the wind-only group. The non-photochemical quenching was sensitive to wind erosion, and sediment-carrying wind could aggravate the reduction in non-photochemical quenching (NPQ). Except for the 10 min duration, the maximum quantum efficiency of PSII photochemistry after dark recovery for 15 min, F-v(R)/F-m(R), was lower in seedlings exposed to sediment-carrying wind than in those in the wind-only group. Compared to wind-only, wind-blown sand led to a water imbalance and withering in seedlings, causing the concentration of photosynthetic pigments (when based on the fresh mass of green branches) to not decrease. With a longer exposure time to sediment-carrying wind, both the probability and extent of lignified spots occurring increased in green assimilative branches. Our results demonstrated that sediment-carrying wind at 12 m s(-1) lasting for 20 min or more could cause irreversible damage to the photosynthetic apparatus of H. ammodendron seedlings. Therefore, frequent and strong sandstorms are the main disturbance factors leading to shrinkage of shrubs and limiting their self-renewal.
关键词	CHLOROPHYLL FLUORESCENCE BIOMASS ALLOCATION WIND PHOTOSYNTHESIS GROWTH CONDUCTANCE EFFICIENCY VAPOR
英文关键词	Arid desert areas; Haloxylon ammodendron; Non-photochemical quenching; PSII photochemical efficiency; Sediment-carrying wind; Self-renewal
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000779702700001
来源期刊	THEORETICAL AND EXPERIMENTAL PLANT PHYSIOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254267
作者单位	[Shi, Sheng-bo; Zhou, Dang-wei; Li, Tian-cai; Ma, Jia-lin] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biol, 23 Xinning Rd, Xining 810001, Qinghai, Peoples R China; [Shi, Sheng-bo; Wang, Fang-lin; Sun, Tao; Wan, Xiang; Ma, Jian-ping; Tang, Jing-nian] Gansu Desert Control Res Inst, Gansu Minqin Natl Stn Desert Steppe Ecosyst Studi, 390 Beibinhe West Rd, Lanzhou 730070, Gansu, Peoples R China; [Shi, Rui] Sun Yat Sen Univ, Sch Life Sci, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Shi, Sheng-bo,Zhou, Dang-wei,Wang, Fang-lin,et al. Sandstorms cause shrinkage of Haloxylon ammodendron shrubs and limit their self-renewal[J]. 中国科学院西北生态环境资源研究院,2020.
APA	Shi, Sheng-bo.,Zhou, Dang-wei.,Wang, Fang-lin.,Shi, Rui.,Sun, Tao.,...&Tang, Jing-nian.(2020).Sandstorms cause shrinkage of Haloxylon ammodendron shrubs and limit their self-renewal.THEORETICAL AND EXPERIMENTAL PLANT PHYSIOLOGY.
MLA	Shi, Sheng-bo,et al."Sandstorms cause shrinkage of Haloxylon ammodendron shrubs and limit their self-renewal".THEORETICAL AND EXPERIMENTAL PLANT PHYSIOLOGY (2020).