Specifications

Source title: Shuili Xuebao/Journal of Hydraulic Engineering
Abbreviated source title: Shuili Xuebao
Volume: 44
Issue: 2
Issue date: February 2013
Publication year: 2013
Pages: 238-242
Language: Chinese
ISSN: 05599350
CODEN: SLHPBI
Document type: Journal article (JA)
Publisher: China Water Power Press, no. 1 Xikang Road, Nanjing, 210024, China
Abstract: Taking the double-cropping late rice field in the Cao'e Riven basin of Shaoxing,
Zhejiang as the research object, the distribution of the concentrations of nitrogen (TN, NO3--N,
NH4+-N) and TP (total P) in farmland runoff from diversion system, field stagnant water, and
drainage system were studied under the irrigation in the growing season of late rice; and the
effects of straw mulch on the nitrogen and phosphorus loss in bare farmland were investigated.
The results show that (1) during the growing season of late rice, the NO3--N was the main form
of the dissolved nitrogen loss in irrigation runoff, which accounted for 63.2%~92.9% of TN, while
the NH4+-N only accounted for 5.1%~32.1% with an order of decreasing concentration of field
stagnant water>drainage system>diversion system; (2) the TP concentration in the drainage
system decreased stepwise by 14%~26% in the growing season, during which the phosphorus
loss was slighter in the jointing-booting period, but was larger in the greening-tillering and
heading-filling periods; (3) the straw mulch on the bare farmland significantly reduced the
nitrogen loss, but it showed little effect on the TP concentration in farmland runoff.
Number of references: 15
Main heading: Agricultural runoff
Controlled terms: Drainage - Farms - Irrigation - Nitrogen - Phosphorus
Uncontrolled terms: Dissolved nitrogen - Distribution characteristics - Diversion systems
- Double-cropping late rice - Growing season - Nitrogen and phosphorus - Nitrogen
and phosphorus loss - Straw mulch
Classification code: 401 Bridges and Tunnels - 406 Highway Engineering - 442 Flood
Control; Land Reclamation - 502 Mines and Quarry Equipment and Operations - 804
Chemical Products Generally - 821 Agricultural Equipment and Methods; Vegetation and Pest
Control
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
3.
Accession number: 20131416161898
Title: Hydraulic performance experiment of an adaptive drip irrigation emitter
Authors: Feng, Junjie1, 2 ; Fei, Liangjun1 ; Deng, Zhong2 ; Lü, Mouchao2 ; Jia, Yanhui2 ; Liu,
Yang2/冯俊杰;费良军;邓忠;吕谋超;贾艳辉;刘杨
Author affiliation: 1 Institute of Water Resources and Hydro-electric Engineering, Xi'an
University of Technology, Xi'an 710048, China