干旱区生态环境知识资源中心(Arid): Correlation between Non-Structural Carbohydrates and C:N:P Stoichiometric Ratio of Haloxylon ammodendron under Different Water-Salt Gradients

Arid

DOI	10.3390/f14061185
	Correlation between Non-Structural Carbohydrates and C:N:P Stoichiometric Ratio of Haloxylon ammodendron under Different Water-Salt Gradients
	Yang, Fang; Lv, Guanghui; Qie, Yadong
通讯作者	Lv, GH
来源期刊	FORESTS
EISSN	1999-4907
出版年	2023
卷号	14 期号:6
英文摘要	Growth is restricted by both water and phosphorus (P), and balancing the relationship between non-structural carbohydrates (NSCs) and carbon: nitrogen: phosphorus (C:N:P) is essential for Haloxylon ammodendron to adapt to arid habitats. The survival and growth strategies of the dominant species H. ammodendron in a desert ecosystem were examined in order to better serve the restoration of degraded ecosystems and desertification control. Three water and salt gradients (high water and high salinity, medium water and salinity, and low water and low salinity) in the Aibi Lake Reserve were selected. We analyzed the accumulation and distribution of NSCs in the assimilation branches and secondary branches of H. ammodendron and the changes in the measurement ratio characteristics of C:N:P, as well as the soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) content. The results showed that: (1) With the decrease of soil water and salt content, the basal diameter, plant height, crown area, and NSC content of H. ammodendron significantly decreased. This morphological adjustment in the aboveground part is similar to a self thinning behavior, aimed at reducing transpiration area and balancing carbon distribution in the body. The carbon accumulation in the body helps the H. ammodendron to resist the dual stresses of drought and salt. (2) With the decrease of water and salt content, the C content of assimilating branches increased significantly, while there was no significant change in secondary branches. However, the N and P content of both branches decreased significantly, and the N: P of both branches was greater than 16, indicating that it was mainly limited by P. (3) The NSC of the two branches was significantly negatively correlated with C, and significantly positively correlated with N and P, and there was a strong positive correlation between the assimilation branches NSC: C: P and NSC: C: P. The synthesis and accumulation of NSC of H. ammodendron were influenced by the content and relationship of C, N, and P, and the abundance of P content transported by the root system to the aboveground portion may have an important and decisive role in regulating nutrient balance and non-structural carbon dynamics.
英文关键词	Haloxylon ammodendron different water-salt gradients non-structural carbohydrates C N P stoichiometric ratio
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:001015407000001
WOS关键词	BIOLOGICAL STOICHIOMETRY ; LOESS PLATEAU ; FOREST GROWTH ; FRESH-WATER ; PLANT ; DROUGHT ; NITROGEN ; SOIL ; PHOSPHORUS ; RESPONSES
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/2XILL650/396424
推荐引用方式 GB/T 7714	Yang, Fang,Lv, Guanghui,Qie, Yadong. Correlation between Non-Structural Carbohydrates and C:N:P Stoichiometric Ratio of Haloxylon ammodendron under Different Water-Salt Gradients[J],2023,14(6).
APA	Yang, Fang,Lv, Guanghui,&Qie, Yadong.(2023).Correlation between Non-Structural Carbohydrates and C:N:P Stoichiometric Ratio of Haloxylon ammodendron under Different Water-Salt Gradients.FORESTS,14(6).
MLA	Yang, Fang,et al."Correlation between Non-Structural Carbohydrates and C:N:P Stoichiometric Ratio of Haloxylon ammodendron under Different Water-Salt Gradients".FORESTS 14.6(2023).