Relationship between river size and nutrient removal

被引：200

作者：

Wollheim, WM ^{[1
]}

Vöösmarty, CJ

Peterson, BJ

Seitzinger, SP

Hopkinson, CS

机构：

[1] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA

[2] Marine Biol Lab, Ctr Ecosyst, Woods Hole, MA 02543 USA

[3] Rutgers State Univ, Inst Marine & Coastal Sci, NOAA CMER Program, New Brunswick, NJ 08901 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2006年 / 33卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1029/2006GL025845

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We present a conceptual approach for evaluating the biological and hydrological controls of nutrient removal in different sized rivers within an entire river network. We emphasize a per unit area biological parameter, the nutrient uptake velocity (nu(f)), which is mathematically independent of river size in benthic dominated systems. Standardization of biological parameters from previous river network models to nu(f) reveals the nature of river size dependant biological activity in these models. We explore how geomorphic, hydraulic, and biological factors control the distribution of nutrient removal in an idealized river network, finding that larger rivers within a basin potentially exert considerable influence over nutrient exports.

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