Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/ece3.2710 |
Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems | |
Wang, Xiaodan; Ma, Xingxing; Yan, Yan | |
通讯作者 | Wang, Xiaodan |
来源期刊 | ECOLOGY AND EVOLUTION
![]() |
ISSN | 2045-7758 |
出版年 | 2017 |
卷号 | 7期号:5页码:1354-1362 |
英文摘要 | Soil nutrients strongly influence biomass allocation. However, few studies have examined patterns induced by soil C:N:P stoichiometry in alpine and arid ecosystems. Samples were collected from 44 sites with similar elevation along the 220-km transect at spatial intervals of 5km along the northern Tibetan Plateau. Aboveground biomass (AGB) levels were measured by cutting a sward in each plot. Belowground biomass (BGB) levels were collected from soil pits in a block of 1mx1m in actual root depth. We observed significant decreases in AGB and BGB levels but increases in the BGB:AGB ratio with increases in latitude. Although soil is characterized by structural complexity and spatial heterogeneity, we observed remarkably consistent C:N:P ratios within the cryic aridisols. We observed significant nonlinear relationships between the soil N:P and BGB:AGB ratios. The critical N:P ratio in soils was measured at approximately 2.0, above which the probability of BGB:AGB response to nutrient availability is small. These findings serve as interesting contributions to the global data pool on arid plant stoichiometry, given the previously limited knowledge regarding high-altitude regions. |
英文关键词 | biomass allocation soil stoichiometry soil-plant interaction Tibetan Plateau |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000395012000004 |
WOS关键词 | C-N-P ; NORTHERN TIBETAN PLATEAU ; NET PRIMARY PRODUCTION ; BELOW-GROUND BIOMASS ; NUTRIENT LIMITATION ; BIOLOGICAL STOICHIOMETRY ; PHOSPHORUS-NUTRITION ; TERRESTRIAL PLANTS ; GLOBAL PATTERNS ; USE EFFICIENCY |
WOS类目 | Ecology ; Evolutionary Biology |
WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/198491 |
作者单位 | Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Xiaodan,Ma, Xingxing,Yan, Yan. Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems[J],2017,7(5):1354-1362. |
APA | Wang, Xiaodan,Ma, Xingxing,&Yan, Yan.(2017).Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems.ECOLOGY AND EVOLUTION,7(5),1354-1362. |
MLA | Wang, Xiaodan,et al."Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems".ECOLOGY AND EVOLUTION 7.5(2017):1354-1362. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。