Soil and Water Management: Practices to Mitigate Nutrient Losses in Agricultural Watersheds, 2nd Edition

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

Deadline for manuscript submissions: 20 February 2025 | Viewed by 551

Special Issue Editors

Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Interests: soil erosion; soil quality; land degradation; soil and water conservation; ecological engineering
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Guest Editor
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Interests: trace element; environmental health; biogeochemical cycle; drinking water quality; soil pollution; spatial analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nutrient losses in agricultural watersheds have negative impacts on both water quality and ecosystems. Therefore, it is crucial to adopt soil and water management practices that can significantly mitigate nutrient losses in agricultural watersheds and minimize their negative impacts. Considering this challenge, we call for articles on the following topics: (1) The mechanisms of nutrient transport in agricultural watersheds. (2) Methods for the quantitative assessment of nutrient losses in agricultural watersheds. (3) The damages caused by nutrient losses in agricultural watersheds. (4) Practices that can be used for mitigating nutrient losses in agricultural watersheds, including conservation tillage, cover crops, precision agriculture, etc.

Dr. Lizhi Jia
Dr. Yuan Tian
Guest Editors

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Keywords

  • biogeochemical cycle
  • soil pollution
  • soil quality
  • conservation tillage
  • precision agriculture
  • nutrient losses
  • migration mechanism

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Published Papers (1 paper)

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Research

14 pages, 4768 KiB  
Article
The Quantification of the Ecosystem Services of Forming Ridges in No-Tillage Farming in the Purple Soil Region of China: A Meta-Analysis
by Lizhi Jia
Water 2024, 16(18), 2675; https://doi.org/10.3390/w16182675 - 20 Sep 2024
Viewed by 449
Abstract
Forming ridges in no-tillage farming (FRNF) is an important conservation tillage practice in the purple soil region of China. Whether FRNF will enhance ecosystem services remains unclear. There is a lack of a systematic quantitative research about the effect of FRNF on ecosystem [...] Read more.
Forming ridges in no-tillage farming (FRNF) is an important conservation tillage practice in the purple soil region of China. Whether FRNF will enhance ecosystem services remains unclear. There is a lack of a systematic quantitative research about the effect of FRNF on ecosystem services. We collected 611 data entries from 21 previous publications to quantitatively evaluate the effects of FRNF on runoff and sediment loss, soil physicochemical properties and biomass. The results showed that compared with conventional tillage, (1) FRNF reduced runoff and sediment loss by 49% and 73%, respectively, due to the blocking effect of the ridge-ditch structure; (2) FRNF increased the concentrations of soil organic carbon, total nitrogen, available nitrogen, available phosphorus and available potassium by 15%, 14%, 30%, 58% and 17%, respectively; (3) FRNF decreased soil bulk density on the ridges by 11% and increased soil moisture content in the furrows by 28%, while it had insignificant effects on soil bulk density in the furrows and soil moisture content on the ridges; and (4) FRNF increased aboveground and belowground biomass (maize, oilseed rape, potato, sweet potato and wheat) by 23% and 63%, respectively. Overall, these results highlighted the importance of FRNF in regulating soil erosion, physicochemical properties and biomasses in the purple soil region of China. The implementation of FRNF in this region could significantly improve the ecosystem services in agro-ecosystems. Full article
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