Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s100210000015 |
Nutrient cycling in lakes and streams: Insights from a comparative analysis | |
Essington, TE; Carpenter, SR | |
通讯作者 | Essington, TE |
来源期刊 | ECOSYSTEMS
![]() |
ISSN | 1432-9840 |
出版年 | 2000 |
卷号 | 3期号:2页码:131-143 |
英文摘要 | Understanding of general ecosystem principles may be improved by comparing disparate ecosystems. We compared nutrient cycling in lakes and streams to evaluate whether contrasts in hydrologic properties lead to different controls and different rates of internal nutrient cycling. Our primary focus was nutrient cycling that results in increased productivity, so we quantified nutrient cycling by defining the recycling ratio (rho) as the number of times a nutrient molecule is sequestered by producers before export. An analytic model of nutrient cycling predicted that in lakes rho is governed by the processes that promote the mineralization and retard the sedimentation of particulate-bound nutrients, whereas in streams, rho is governed by processes that promote the uptake and retard the export of dissolved nutrients. These differences were the consequence of contrast between lakes and streams in the mass-specific export rates (mass exported standing stock(-1) . time(-1)) of dissolved and particulate nutrients. Although rho is calculated from readily measured ecosystem variables, we found very few published data sets that provided the necessary data for a given ecosystem. We calculated and compared rho in two well-studied P-limited ecosystems, Peter Lake and West Fork Walker Branch (WFWB). When ecosystems were scaled so that water residence time was equal between these two ecosystems, rho was three orders of magnitude greater in WFWB. However, when we scaled by P residence time, rho was nearly equal between these two ecosystems. This suggests broad similarities in rho across ecosystem types when ecosystem boundaries are defined so that turnover times of limiting nutrients are the same. |
英文关键词 | ecosystem lakes streams nutrient cycling lotic lentic comparative analysis ecosystem models |
类型 | Review |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000087071600002 |
WOS关键词 | ORGANIC-MATTER DYNAMICS ; PLANKTONIC PRIMARY PRODUCTION ; DESERT STREAM ; NITROGEN DYNAMICS ; CANADIAN SHIELD ; CARBON FLOW ; PERIPHYTON COMMUNITIES ; PHOSPHORUS DYNAMICS ; ECOSYSTEM STRUCTURE ; WOODLAND STREAM |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/138886 |
作者单位 | (1)Univ Wisconsin, Ctr Limnol, Madison, WI 53703 USA |
推荐引用方式 GB/T 7714 | Essington, TE,Carpenter, SR. Nutrient cycling in lakes and streams: Insights from a comparative analysis[J],2000,3(2):131-143. |
APA | Essington, TE,&Carpenter, SR.(2000).Nutrient cycling in lakes and streams: Insights from a comparative analysis.ECOSYSTEMS,3(2),131-143. |
MLA | Essington, TE,et al."Nutrient cycling in lakes and streams: Insights from a comparative analysis".ECOSYSTEMS 3.2(2000):131-143. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Essington, TE]的文章 |
[Carpenter, SR]的文章 |
百度学术 |
百度学术中相似的文章 |
[Essington, TE]的文章 |
[Carpenter, SR]的文章 |
必应学术 |
必应学术中相似的文章 |
[Essington, TE]的文章 |
[Carpenter, SR]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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。