Pollution and Restoration of Agricultural Soil and Water Resources

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Soil and Water".

Deadline for manuscript submissions: closed (31 October 2022) | Viewed by 5393

Special Issue Editor


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Guest Editor
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China
Interests: rural decentralized domestic sewage; phosphorus recovery from wastewater; phosphorus recovery from urine; reclaimed water reuse; water environmental protection

Special Issue Information

Dear Colleagues,

Agricultural non-point source pollution has become an important factor in the deterioration of surface water and groundwater quality in some areas. In the past few decades, the assessment methods and control techniques of agricultural non-point source pollution have seen rapid progress. However, these methods and techniques are widely published in various languages and in different countries, lacking systematic summaries and prospects for future research. This Special Issue focuses on the latest research progress in the intersecting field of farmland soil science and water environment protection, including soil nitrogen and phosphorus runoff and leaching loss and risk assessment methods in farmland, as well as control methods of pollutant transfer to a water body from a paddy field and dry land, recovery of phosphorus from wastewater, and agricultural reuse and risk. This knowledge could support the establishment of farmland non-point source pollution prevention and control systems. The shortcomings of methods and techniques in wastewater treatment and reuse will be reviewed, and urgent scientific and technological issues related to wastewater treatment and reuse in the future will be addressed. The publication of this Special Issue will have a significant impact on the fields of soil science, agro-environment science, and engineering, promoting research and the development of innovative technologies for farmland non-point source pollution.

Prof. Dr. Zhengyi Hu
Guest Editor

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Keywords

  • recovery of phosphorus from wastewater
  • struvite for agricultural reuse
  • farmland non-point source pollution control
  • field drainage purification
  • ecological interception system
  • control of soil nitrogen and phosphorus leaching
  • risk assessment of soil phosphorus and nitrogen leaching
  • risk assessment of runoff loss of soil nitrogen and phosphorus

Published Papers (2 papers)

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Research

13 pages, 1421 KiB  
Article
Drip Irrigation Reduced Fertilizer Nitrogen Loss from Lettuce Field—A Case Study Based on 15N Tracing Technique
by Qiu Jin, Junjian You, Meixiang Xie, Yaliu Qiu, Shaohua Lei, Qian Ding and Jingnan Chen
Water 2022, 14(4), 675; https://0-doi-org.brum.beds.ac.uk/10.3390/w14040675 - 21 Feb 2022
Cited by 6 | Viewed by 2173
Abstract
Nitrogen losses under different irrigation modes have been evaluated by many studies, yet it is not very clear whether the lost N sources are from the soil or fertilizer. In order to quantitatively investigate the effects of different irrigation modes on fertilizer N [...] Read more.
Nitrogen losses under different irrigation modes have been evaluated by many studies, yet it is not very clear whether the lost N sources are from the soil or fertilizer. In order to quantitatively investigate the effects of different irrigation modes on fertilizer N loss, we used the 15N-labeledurea (15N abundance of 19.6%) as fertilizer and the lettuce (Lactuca sativa var. angustana iris) as the plant material to conduct a field experiment under three different lower limits of drip irrigation, including 75% (DR1), 65% (DR2) and 55% (DR3), accounting for the field water capacity. A furrow irrigation treatment (FI) with the same irrigation regime as DR2 was used as the control. The fate and balance of 15N under these treatments were studied. The results showed that, after the lettuce harvest, 36.9–48.8% of the applied fertilizer 15N remained in 0–80-cm soil, 32.6–39.4% was absorbed by plants, and 18.6–26.3% was lost via pathways such as volatilization or leaching. Under the same irrigation regime, 15N loss caused by FI (26.3%) was significantly (p < 0.05) higher than that byDR2 (18.9%). Moreover, FI increased the amount of total 15N, mineral 15N and organic 15N in the deeper soil layers (60 cm depth and below), leading to a potential risk of 15N leaching. The soil 15N residue was relatively lower under DR1, while the crop-absorbed 15N or 15N loss was atthe highest level among the three drip irrigation treatments. The correlation analysis results showed that increasing the total irrigation amount or increasing the irrigation frequency might increase the 15N loss. We concluded that using drip irrigation instead of furrow irrigation with controlling the lower irrigation limit at 65% is conducive to improving crop 15N utilization and reducing 15N loss from lettuce fields. Full article
(This article belongs to the Special Issue Pollution and Restoration of Agricultural Soil and Water Resources)
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14 pages, 2466 KiB  
Article
Adsorption of EDCs on Reclaimed Water-Irrigated Soils: A Comparative Analysis of a Branched Nonylphenol, Nonylphenol and Bisphenol A
by Shiyu Wang, Junnan Zhang, Fada Zhou, Cunzhen Liang, Liao He, Wentao Jiao and Wenyong Wu
Water 2021, 13(18), 2532; https://0-doi-org.brum.beds.ac.uk/10.3390/w13182532 - 15 Sep 2021
Cited by 2 | Viewed by 2586
Abstract
Nonylphenol (NP) and bisphenol A (BPA) are two typical endocrine disrupter chemicals (EDCs) in reclaimed water. In this study, the adsorptions of NP, a branched NP (NP7) and BPA on reclaimed water-irrigated soils were studied by isothermal experiments, and the different [...] Read more.
Nonylphenol (NP) and bisphenol A (BPA) are two typical endocrine disrupter chemicals (EDCs) in reclaimed water. In this study, the adsorptions of NP, a branched NP (NP7) and BPA on reclaimed water-irrigated soils were studied by isothermal experiments, and the different environmental factors on their adsorptions were investigated. The results showed that the adsorptions of NP and NP7 on soils conformed to the Linear model, and the adsorption of BPA conformed to the Freundlich model. The adsorptions of NP, NP7 and BPA on soils decreased with increasing temperatures and pHs. Adsorption equilibrium constant (Kd or Kf) were maximum at pH = 3, temperature 25 °C and As(III)-soil, respectively. The adsorption capacity of NP, NP7 and BPA to soils under different cation valence were as follows: neutrally > divalent cations > mono-cations. Kd of NP7 on soil was less than that of NP under different pH and temperatures, while under different cation concentrations it was the inverse. Fourier Transform Infrared Spectrometer (FTIR) analysis showed alkyl chains of NP and BPA seemed to form van der Waals interactions with the cavity of soil. Results of this study will provide further comprehensive fundamental data for human health risk assessment of NP and BPA in soil. Full article
(This article belongs to the Special Issue Pollution and Restoration of Agricultural Soil and Water Resources)
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