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(Article of periodic en Anglais - 2013)

Document title

Reducing nitrogen and phosphorus losses from arable slope land with contour hedgerows and perennial alfalfa mulching in Three Gorges Area, China

Authors(s) and Affiliation(s)

XIA L. (1) ; HOERMANN G. (2) ; MA L. (1) ; YANG L. (1) ;
(1) Inst. of Soil Science, CAS, Nanjing, CHINE
(2) Inst. of the Protection of Natural Resources, Univ., Kiel, ALLEMAGNE

Abstract

The loss of nitrogen and phosphorus from arable slope land threatens the aquatic environment in the Three Gorges Area, China, and the protection of these slopes will play an important role in regional agricultural development. During the last 10 years, a long-term comparison of ecological methods to reduce losses of nitrogen and phosphorus has been carried out with 5 treatments. Rainfall (P), runoff, rainfall intensities (I10, I20, I30, I60), sediment yield, and nitrogen and phosphorus losses from slope plots were analyzed for each rainfall event. The results showed that compared with wheat-peanut rotation and conventional management, perennial soil mulching, wheat-peanut rotation with alfalfa contour hedgerows and wheat-peanut rotation with toon contour hedgerows could effectively reduce runoff, sediment yield and losses of nitrogen and phosphorus from arable slope land. The reductions of sediment yield and losses of nitrogen and phosphorus increased with the increase of rainfall intensities and rainfall integrated indexes

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2013, vol. 110 [pp. 86-94]

Bibliographic references : 1 p.

Collation : 6 fig., 6 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2013.05.009

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
Refdoc record number (ud4) : 28016412 : Permanent link - XML version
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