干旱区生态环境知识资源中心(Arid): Sex-Related Ecophysiological Responses of Hippophae rhamnoide Saplings to Simulate Sand Burial Treatment in Desertification Areas

Arid

DOI	10.3390/f14010101
	Sex-Related Ecophysiological Responses of Hippophae rhamnoide Saplings to Simulate Sand Burial Treatment in Desertification Areas
	Chen, Juan; Lin, Yuhu; Fang, Ling; Li, Jinfang; Han, Suju; Li, Yudong; Li, Yan
通讯作者	Li, Y
来源期刊	FORESTS
EISSN	1999-4907
出版年	2023
卷号	14 期号:1
英文摘要	(1) Background: In recent years, Hippophae rhamnoides has been used extensively to prevent desertification in China due to its nitrogen (N) fixation and sand stabilization abilities. However, as a dioecious species, few studies have focused on the sexual dimorphism of H. rhamnoides in response to sand burial, which frequently presents in desertification areas. (2) Methods: In this paper, we explored the ecophysiological responses of female and male saplings of H. rhamnoides under unburied treatment (control) and different sand burial depths (denoted as T33, T67, T90 and T133, corresponding to sand burial depths of 33, 67, 90 and 133 percent of the mean initial height of the saplings, respectively). (3) Results: Compared with unburied controls, the T33 treatment significantly promoted biomass accumulation and photosynthetic capacity, whereas T67 and T90 treatments inhibited biomass and physiological parameters of the two sexes. Deeper sand burial treatments, i.e., T90 and T133, significantly decreased the survival rates of the two sexes. Furthermore, the sex-specific responses of the two sexes of H. rhamnoides were affected by different depths of sand burial. Males had higher levels of stem starch and root sucrose and exhibited a larger increase in root nodule biomass under the T33 treatment, indicating better carbohydrate utilization and N fixation, whereas females showed lower total biomass and fewer root nodules, as well as more inhibition of photosynthetic and chlorophyll fluorescence parameters, water potential and root carbohydrates, indicating more negative effects on females than males under the T67 treatment. (4) Conclusions: We conclude that sex-related response and adaptation to sand burial depths may potentially affect the colonization, sex ratio and ecological function of the two sexes of H. rhamnoides in desertification areas.
英文关键词	sexual dimorphism sand burial photosynthetic capacity carbohydrates chlorophyll fluorescence
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:000918179700001
WOS关键词	2 CONTRASTING POPULATIONS ; PHYSIOLOGICAL-RESPONSES ; POPULUS-DELTOIDES ; GROWTH-RESPONSES ; SEEDLING GROWTH ; GAS-EXCHANGE ; NITROGEN ; STRESS ; SURVIVAL ; DROUGHT
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396398
推荐引用方式 GB/T 7714	Chen, Juan,Lin, Yuhu,Fang, Ling,et al. Sex-Related Ecophysiological Responses of Hippophae rhamnoide Saplings to Simulate Sand Burial Treatment in Desertification Areas[J],2023,14(1).
APA	Chen, Juan.,Lin, Yuhu.,Fang, Ling.,Li, Jinfang.,Han, Suju.,...&Li, Yan.(2023).Sex-Related Ecophysiological Responses of Hippophae rhamnoide Saplings to Simulate Sand Burial Treatment in Desertification Areas.FORESTS,14(1).
MLA	Chen, Juan,et al."Sex-Related Ecophysiological Responses of Hippophae rhamnoide Saplings to Simulate Sand Burial Treatment in Desertification Areas".FORESTS 14.1(2023).