干旱区生态环境知识资源中心(Arid): Leaf-root-soil N:P stoichiometry of ephemeral plants in a temperate desert in Central Asia

Arid

DOI	10.1007/s10265-021-01355-8
	Leaf-root-soil N:P stoichiometry of ephemeral plants in a temperate desert in Central Asia
	Tao, Ye; Qiu, Dong; Gong, Yan-Ming; Liu, Hui-Liang; Zhang, Jing; Yin, Ben-Feng; Lu, Hai-Ying; Zhou, Xiao-Bing B.; Zhang, Yuan-Ming
通讯作者	Liu, HL ; Zhou, XBB ; Zhang, YM (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, 818 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China.
来源期刊	JOURNAL OF PLANT RESEARCH
ISSN	0918-9440
EISSN	1618-0860
出版年	2022
英文摘要	Ephemeral plants are a crucial vegetation component in temperate deserts of Central Asia, and play an important role in biogeochemical cycle and biodiversity maintenance in desert ecosystems. However, the nitrogen (N) and phosphorus (P) status and interrelations of leaf-root-soil of ephemeral plants remain unclear. A total of 194 leaf-root-soil samples of eight ephemeral species at 37 sites in the Gurbantunggut Desert, China were collected, and then the corresponding N and P concentrations, and the N:P ratio were measured. Results showed that soil parameters presented no significant difference among the eight species. The total soil N:P was only 0.116 (geomean), indicating limited soil N, while the available soil N:P (4.896, geomean) was significantly larger than the total N:P. The leaf N (averagely 30.995 mg g(-1)) and P (averagely 1.523 mg g(-1)) concentrations were 2.64-8.46 and 0.93-3.99 times higher than the root N (averagely 8.014 mg g(-1)) and P (averagely 0.802 mg g(-1)) concentrations, respectively. Thus, leaf N:P (averagely 21.499) was 1.410-2.957 times higher than root N:P (averagely 11.803). Meanwhile, significant interspecific differences existed in plant stoichiometric traits. At the across-species level, N content scaled as the 3/4-power of P content in both leaves and roots. Leaf and root N:P ratios were mainly influenced by P; however, the leaf-to-root N or P ratio was dominated by roots. Leaf and root N, P contents and N:P were generally unrelated to soil nutrients, and the former presented lower variation than the latter, indicating a strong stoichiometric homeostasis for ephemerals. These results demonstrate that regardless of soil nutrient supply capacity in this region, the fast-growing ephemeral plants have formed a specific leaf-root-soil stoichiometric relation and nutrient use strategy adapting to the extreme desert environment.
英文关键词	Nutrient stoichiometry Plant-soil relation Gurbantunggut Desert Homeostasis Herbaceous species Nutrient use strategy
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000717370100001
WOS关键词	PHOSPHORUS STOICHIOMETRY ; CNP STOICHIOMETRY ; GURBANTUNGGUT DESERT ; ECOLOGICAL STOICHIOMETRY ; ECOSYSTEM STRUCTURE ; HERBACEOUS PLANTS ; LOESS PLATEAU ; FINE ROOTS ; NITROGEN ; GROWTH
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367678
作者单位	[Tao, Ye; Qiu, Dong; Gong, Yan-Ming; Liu, Hui-Liang; Zhang, Jing; Yin, Ben-Feng; Zhou, Xiao-Bing B.; Zhang, Yuan-Ming] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, 818 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China; [Lu, Hai-Ying] Nanjing Forestry Univ, Coll Biol & Environm, 159 Longpan Rd, Nanjing 210042, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Tao, Ye,Qiu, Dong,Gong, Yan-Ming,et al. Leaf-root-soil N:P stoichiometry of ephemeral plants in a temperate desert in Central Asia[J]. 中国科学院新疆生态与地理研究所,2022.
APA	Tao, Ye.,Qiu, Dong.,Gong, Yan-Ming.,Liu, Hui-Liang.,Zhang, Jing.,...&Zhang, Yuan-Ming.(2022).Leaf-root-soil N:P stoichiometry of ephemeral plants in a temperate desert in Central Asia.JOURNAL OF PLANT RESEARCH.
MLA	Tao, Ye,et al."Leaf-root-soil N:P stoichiometry of ephemeral plants in a temperate desert in Central Asia".JOURNAL OF PLANT RESEARCH (2022).