Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems
文献类型：期刊论文
| 作者 | Wang, Xiaodan ; Ma, Xingxing; Yan, Yan
|
| 刊名 | ECOLOGY AND EVOLUTION
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 7期号:5页码:1354-1362 |
| 关键词 | biomass allocation soil stoichiometry soil-plant interaction Tibetan Plateau |
| ISSN号 | 2045-7758 |
| 通讯作者 | Xiaodan Wang |
| 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Ecology ; Evolutionary Biology |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Evolutionary Biology |
| 关键词[WOS] | C-N-P ; NORTHERN TIBETAN PLATEAU ; NET PRIMARY PRODUCTION ; BELOW-GROUND BIOMASS ; NUTRIENT LIMITATION ; BIOLOGICAL STOICHIOMETRY ; PHOSPHORUS-NUTRITION ; TERRESTRIAL PLANTS ; GLOBAL PATTERNS ; USE EFFICIENCY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000395012000004 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/18588]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 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]. ECOLOGY AND EVOLUTION,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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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