Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Mass balance analysis and water quality model development for loading estimates from paddy fields.

J H Jeon1, C G Yoon, J H Ham

  • 1Konkuk Univ., 1 Hwayang-dong, Kwangjin-gu, Seoul 143-701, Korea. Jihong@konkuk.ac.kr

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|April 27, 2005
PubMed
Summary

Paddy field water balance shows surface drainage and evapotranspiration are key outflows. Reducing surface drainage during fertilization can significantly lower nutrient loading, protecting water quality.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Risk factors for the delayed diagnosis of extrapulmonary TB.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2021
Same author

Comparison of joint degeneration and pain in male and female mice in DMM model of osteoarthritis.

Osteoarthritis and cartilage·2021
Same author

Vaginal compared with intramuscular progestogen for preventing preterm birth in high-risk pregnant women (VICTORIA study): a multicentre, open-label randomised trial and meta-analysis.

BJOG : an international journal of obstetrics and gynaecology·2020
Same author

Timing of antibiotics in septic patients: a prospective cohort study.

Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases·2020
Same author

Peri-ampullary duodenal diverticulum: effect on extrahepatic bile duct dilatation after cholecystectomy.

Clinical radiology·2019
Same author

A Systematic Study Reveals that Xylella fastidiosa Strains from Pecan Are Part of X. fastidiosa subsp. multiplex.

Plant disease·2019

Area of Science:

  • Agricultural Science
  • Environmental Science
  • Hydrology

Background:

  • Paddy fields are significant contributors to water resource management and nutrient cycling.
  • Understanding water balance and nutrient outflow is crucial for sustainable agriculture and environmental protection.

Purpose of the Study:

  • To conduct a mass balance analysis of water and nutrients in paddy fields.
  • To develop and validate a water quality model for paddy field environments.
  • To identify strategies for reducing nutrient loading from paddy fields into surrounding water bodies.

Main Methods:

  • Field experiments were conducted from 2001-2002 to collect data on water balance and nutrient dynamics.
  • Mass balance analysis was employed to quantify water and nutrient flows.

Related Experiment Videos

  • A water quality model was developed and calibrated using the experimental data.

    • Main Results:

    • Surface drainage accounted for 47-62% of total outflow, while evapotranspiration represented 490-530 mm.
    • Nutrient inflow was primarily driven by fertilization, and outflow by plant uptake.
    • Substantial nutrient outflow occurred via surface drainage runoff: 15-29% for Total Nitrogen (T-N) and 6-13% for Total Phosphorus (T-P).
    • Fertilization did not significantly impact yield or drainage outflow in this study.
    • The developed water quality model showed good agreement with observed data.

    Conclusions:

    • Nutrient concentrations in ponded water are highest during early fertilization periods.
    • Reducing surface drainage, particularly during fertilization, is an effective strategy to mitigate nutrient loading from paddy fields.
    • Recommendations include shallow irrigation, increasing weir height in diked fields, and minimizing forced surface drainage to reduce outflow and improve water quality.