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Effect of irrigation amount and fertilization on agriculture non-point source pollution in the paddy field

Environmental science and pollution research international, 2019-04, Vol.26 (10), p.10363-10373 [Peer Reviewed Journal]

Springer-Verlag GmbH Germany, part of Springer Nature 2019 ;Environmental Science and Pollution Research is a copyright of Springer, (2019). All Rights Reserved. ;ISSN: 0944-1344 ;EISSN: 1614-7499 ;DOI: 10.1007/s11356-019-04375-z ;PMID: 30761497

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Title:
Effect of irrigation amount and fertilization on agriculture non-point source pollution in the paddy field
Author: Wang, Huiliang ; He, Peng ; Shen, Chenyang ; Wu, Zening
Subjects: Agricultural Irrigation - methods ; Agricultural management ; Agricultural pollution ; Agricultural runoff ; Agriculture ; Agriculture - methods ; Aquatic Pollution ; Atmospheric Protection/Air Quality Control/Air Pollution ; Drainage ; Earth and Environmental Science ; Ecotoxicology ; Environment ; Environmental Chemistry ; Environmental Health ; Environmental Pollution ; Fertilization ; Fertilizers ; Irrigation ; Irrigation water ; Load ; Nitrogen - analysis ; Non-Point Source Pollution - analysis ; Nonpoint source pollution ; Oryza - growth & development ; Phosphorus ; Point source pollution ; Pollutants ; Pollution ; Pollution effects ; Pollution load ; Research Article ; Schedules ; Stormwater ; Waste Water Technology ; Water ; Water Management ; Water Movements ; Water Pollutants, Chemical - analysis ; Water pollution ; Water Pollution Control
Is Part Of: Environmental science and pollution research international, 2019-04, Vol.26 (10), p.10363-10373
Description: It is the key point to reveal the effect of irrigation water and fertilization conditions on the agriculture non-point pollution in the paddy field. In this study, the estimation model of agricultural non-point source pollution loads at field scale was established on the basis of agricultural drainage irrigation model and combined with pollutant concentration predication model. Based on the estimation model of agricultural non-point source pollution in the field and experimental data, the load of agricultural non-point source pollution in different irrigate amount and fertilization schedule in paddy field was calculated. The results showed that the variation of field drainage varies greatly under different irrigation conditions, and there is an “inflection point” between the irrigation water amount and field drainage amount. The non-point pollution load increased with the increase of irrigation water and showed a significant power correlation. Under the different irrigation condition, the increase amplitude of non-point pollution load with the increase of irrigation water was different. When the irrigation water is smaller, the non-point pollution load increase relatively less, and when the irrigation water increased to inflection point, the non-point pollution load will increase considerably. In addition, there was a positive correlation between the fertilization and non-point pollution load. The non-point pollution load had obvious difference in different fertilization schedule even with same fertilization level, in which the fertilizer pollution load increased the most in the period of turning green to tillering. The results provide some basis for the field control and management of agricultural non-point source pollution.
Publisher: Berlin/Heidelberg: Springer Berlin Heidelberg
Language: English
Identifier: ISSN: 0944-1344
EISSN: 1614-7499
DOI: 10.1007/s11356-019-04375-z
PMID: 30761497
Source: MEDLINE
ProQuest Central

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Effect of irrigation amount and fertilization on agriculture non-point source pollution in the paddy field

Springer-Verlag GmbH Germany, part of Springer Nature 2019 ;Environmental Science and Pollution Research is a copyright of Springer, (2019). All Rights Reserved. ;ISSN: 0944-1344 ;EISSN: 1614-7499 ;DOI: 10.1007/s11356-019-04375-z ;PMID: 30761497

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