Non-Point Source Pollution and Water Resource Protection

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

Deadline for manuscript submissions: 20 May 2025 | Viewed by 2496

Special Issue Editor


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Guest Editor
College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, China
Interests: water resources protection; non-point source pollution; river confluence; ecology and environmental hydraulics; river pollutant
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Special Issue Information

Dear Colleagues,

Non-point source pollution is a major cause of water quality degradation in watersheds. It is caused by pollutants from agricultural production, domestic wastewater, and fertiliser discharges entering water bodies through runoff, soil erosion, and leaching processes. The random and widespread nature of non-point source pollution makes it a challenge to identify, quantify, and manage, posing a major challenge to water resource protection on a global scale. This Special Issue aims to reveal the drivers, quantitative identification methods, spatial and temporal distribution, and modelling improvements of non-point source pollution in watersheds on a global scale. By sharing relevant scientific and technical experiences, our goal is to provide scientific references and technical support for the quantitative identification of non-point source pollution and water resource protection.

In this Special Issue, original research articles and reviews are welcome. The scope of the research focusses on non-point source pollution and may include (but is not limited to) the following:

  • Quantitative distribution of non-point source pollution loads;
  • Risk assessment of drivers;
  • Critical source area identification and risk determination;
  • Best management practices development;
  • Ecological evaluation and restoration of watershed environments;
  • Mechanism of water–nutrient–sediment interaction;
  • Model optimisation and improvement;
  • Multi-process coupled hydrodynamic, ecological, and environmental modelling.

Dr. Xia Shen
Guest Editor

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Keywords

  • non-point source pollution
  • drivers
  • critical source areas
  • best management practices
  • model optimisation
  • water resource protection

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Published Papers (1 paper)

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Research

17 pages, 3261 KiB  
Article
Characteristics of Suspended Solid Responses to Forest Thinning in Steep Small Headwater Catchments in Coniferous Forest
by Honggeun Lim, Qiwen Li, Byoungki Choi, Hyung Tae Choi and Sooyoun Nam
Water 2024, 16(24), 3610; https://doi.org/10.3390/w16243610 - 15 Dec 2024
Viewed by 2255
Abstract
We examined the responses of suspended solids to forest thinning in steep small headwater catchments, PT (0.8 ha) and PR (0.7 ha), that drain a Korean pine (Pinus koraiensis) plantation forest. Based on a paired-catchment design, the relationship between [...] Read more.
We examined the responses of suspended solids to forest thinning in steep small headwater catchments, PT (0.8 ha) and PR (0.7 ha), that drain a Korean pine (Pinus koraiensis) plantation forest. Based on a paired-catchment design, the relationship between total suspended solids (TSS) and the time differential of water runoff (dQ/dt) indicated a difference in the characteristics of TSS in the rising and falling stages within the initial two years after forest thinning. The relatively high initial TSS responded to the concentration-based first flush criterion in the early stage of the rainfall event concentrated in this initial period after the thinning. The rate of TSS event loads in the PT catchment was 4.3-fold greater than that in the PR catchment within the initial two years after forest thinning. This was induced by the low disturbance of soil surface by forest workers using chainsaws and non-heavy machinery. Three years later, the TSS event loads in the PT catchment appeared to decrease due to trapping and settling by protective vegetation. Therefore, mitigating accelerated TSS events during forest thinning requires appropriate site-specific land preparation, particularly for improving stream water quality in forested catchments. Full article
(This article belongs to the Special Issue Non-Point Source Pollution and Water Resource Protection)
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