globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:6541961
论文题名:
新疆67种荒漠植物叶碳氮磷计量特征及其与气候的关系
其他题名: Leaf C : N : P stoichiometry of 67 plant species and its relations with climate factors across the deserts in Xinjiang, China
作者: 何茂松1; 罗艳2; 彭庆文1; 杨思琪3; 李凯辉4; 韩文轩5
刊名: 应用生态学报
ISSN: 1001-9332
出版年: 2019
卷: 30, 期:7, 页码:951-958
语种: 中文
中文关键词: 荒漠植物 ; 气候因子 ; 植物生活型 ; C3植物 ; C4植物 ; 碳 ; 氮 ; 磷 ; 生态化学计量
英文关键词: desert plant ; climatic factor ; plant life form ; C3 plant ; C4 plant ; carbon ; nitrogen ; phosphorus ; ecological stoichiometry
WOS学科分类: PLANT SCIENCES
WOS研究方向: Plant Sciences
中文摘要: 荒漠生态系统具有独特的耐旱植物种类和植物化学计量特征.本研究通过系统采集全疆63个荒漠地点的67种植物,探索荒漠植物叶碳、氮、磷(C、N、P)的计量特征及其与气候因子的关系.结果表明:荒漠植物叶C、N和P的平均含量分别为394、18.4和1.14 mg · g~(-1),C : N、C : P和N : P平均值分别为28、419和18.灌木的N含量高于乔木和草本,灌木P含量比草本(乔木)低(高);C3植物叶的C、N、C : P、N : P高于C4植物.随年均降水量增加,叶C有先降低后升高的趋势,叶N、P先升高、后降低,叶C : N、C : P与叶N、P变化趋势相反,N : P变化不显著;随年均温升高,叶C先降低后升高,叶N、P降低,C : N变化不显著,C : P、N : P升高.年均降水量对叶片化学计量特征的影响大于年均温度和植物类型.本研究结果将有助于预测全球气候变化背景下的C、N、P元素循环规律的变化,并为干旱区生物地球化学建模提供参考和基础数据.
英文摘要: Desert ecosystem has unique drought-enduring plants and stoichiometric characteristics. We collected leaf samples of 67 plant species from 63 desert sites in Xinjiang, and explored foliar carbon ( C),nitrogen ( N) and phosphorus (P) stoichiometry and the relationship between leaf nutrient stoichiometry and climatic factors. The results showed that the average content of leaf C,N and P in these plants were 394, 18.4 and 1.14 mg · g~(-1),respectively. The mean values of C : N, C:P and N:P were 28, 419 and 18,respectively. In general, shrubs had higher leaf N content than trees and herbs,while leaf P content was lower ( higher) in shrubs than in herbaceous plants (trees). Plants with C3 photosynthesis pathway had higher leaf C, N, C:P and N: P than those with C4 pathway. With increasing mean annual precipitation, leaf C first decreased and then increased,while both leaf N and P showed the opposite trend. Leaf C : N and C : P first decreased and then increased, while leaf N:P changed insignificantly. With increasing mean annual temperature , leaf C first decreased and then increased,and leaf N and P decreased,while leaf C : P and N : P increased. Leaf C : N did not change significantly with mean annual temperature. Mean annual precipitation generally showed stronger control on the variation of leaf nutrient stoichiometry than MAT and plant functional types. These results could help predict responses of the biogeochemical cycling of C, N and P to the global climate changes and provide reference and basic data for biogeochemical modeling in the arid regions.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/156266
Appears in Collections:气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: 1.中国科学院新疆生态与地理研究所
2.中国科学院大学
3.中国科学院中亚生态与环境研究中心,
4., 乌鲁木齐
5.乌鲁木齐,
6.北京
7.830011
8.100049
9.830011
10.中国科学院新疆生态与地理研究所
11.中国科学院中亚生态与环境研究中心
12.中国科学院新疆生态与地理研究所巴音布鲁克草原生态系统研究站,
13., 乌鲁木齐
14.乌鲁木齐
15.巴音布鲁克,
16.新疆 830011
17.830011
18.841314
19.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
20.中国科学院新疆生态与地理研究所
21.中国科学院新疆生态与地理研究所巴音布鲁克草原生态系统研究站,
22., 乌鲁木齐
23.巴音布鲁克,
24.新疆 830011
25.841314
26.中国科学院新疆生态与地理研究所
27.中国科学院中亚生态与环境研究中心,
28., 乌鲁木齐
29.乌鲁木齐,
30.830011
31.830011

Recommended Citation:
何茂松,罗艳,彭庆文,等. 新疆67种荒漠植物叶碳氮磷计量特征及其与气候的关系[J]. 应用生态学报,2019-01-01,30(7):951-958
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[何茂松]'s Articles
[罗艳]'s Articles
[彭庆文]'s Articles
百度学术
Similar articles in Baidu Scholar
[何茂松]'s Articles
[罗艳]'s Articles
[彭庆文]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[何茂松]‘s Articles
[罗艳]‘s Articles
[彭庆文]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.