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(Article of periodic en Anglais - 2012)

Document title

Coupled control of land use and topography on nitrate-nitrogen dynamics in three adjacent watersheds

Authors(s) and Affiliation(s)

JIANG R. (1 2 3) ; WOLI K.P. (3) ; KURAMOCHI K. (3) ; HAYAKAWA A. (3) ; SHIMIZU M. (3) ; HATANO R. (3) ;
(1) College of Resources and Environment, North-West A&F Univ., Yangling, CHINE
(2) Key Lab. of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, CHINE
(3) Graduate School of Agriculture, Hokkaido Univ., Sapporo, JAPON

Abstract

To investigate the factors controlling nitrate-nitrogen dynamics during snowmelt season and rainfall events, this study was conducted in 3 adjacent headwater stream watersheds with coupled land use and topography characteristics in eastern Hokkaido, Japan. The agriculture-dominated watershed (AW) had flat topography in agricultural area, the forest-dominated watershed (FW) was characterized by a steep slope in forest area, and the mixed agriculture-forested watershed (AFW) had flat topography in the agricultural area and steep topography in the forest area. Results showed that the timing of nitrate-nitrogen export is different between the forested and steep watershed FW and the agricultural and flat watershed AW. The timing of nitrate-nitrogen export is related to subsurface flow

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2012, vol. 97 [pp. 1-11]

Bibliographic references : 50 ref.

Collation : 7 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.04.015

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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