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Landscape Integrated Soil and Water Conservation (LISWC) System for Sloping Landscapes in Atlantic Canada

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  • Sheng Li

    (Fredericton Research and Development Centre of Agriculture and Agri-Food Canada, P.O. Box 20280, Fredericton, NB E3B 4Z7, Canada)

Abstract

Soil and water are fundamental and precious resources for agriculture. In Atlantic Canada (AC), intensive agricultural production systems have led to detrimental environmental effects such as soil erosion and the contamination of receiving waters, posing significant threats to the resilience and sustainability of the agro-ecosystem. Although many beneficial management practices (BMPs) have been developed, they all have their shortcomings and there are often trade-offs for each individual BMP. In this paper, a new paradigm is proposed for soil and water conservation—landscape integrated soil and water conservation (LISWC), a system designed to conserve and reuse soil and water within the landscape by integrating multiple BMPs based on an understanding of the landscape processes and knowledge about the BMPs. On a typical sloping field in AC, an LISWC system can be established by integrating BMPs such as diversion terraces and grassed waterways, tile drainage, water retention structures, supplemental irrigation, conservative tillage practices and soil–landscape restoration. Each individual BMP is designed to enhance one aspect of soil and water conservation but working on their own, they are all insufficient for the landscape as a whole and sometimes even have negative impacts. However, once integrated in the landscape, they complement each other: water erosion is reduced by diversion terraces and grassed waterway and conservative tillage, field drainage condition is enhanced by tile drainage, runoff and tile drained water is stored in the retention structure and reused for irrigation, and most eroded soil is returned to the soil loss area with soil–landscape restoration. This holistic landscape perspective can be used to develop LISWC systems for other landform types or applied at watershed or regional scales. Future studies are needed for the connections and interactions between individual BMPs, and analysis on the overall economic benefit of an LISWC system.

Suggested Citation

  • Sheng Li, 2021. "Landscape Integrated Soil and Water Conservation (LISWC) System for Sloping Landscapes in Atlantic Canada," Agriculture, MDPI, vol. 11(5), pages 1-14, May.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:5:p:427-:d:551047
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    References listed on IDEAS

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    1. Wagg, Cameron & Hann, Sheldon & Kupriyanovich, Yulia & Li, Sheng, 2021. "Timing of short period water stress determines potato plant growth, yield and tuber quality," Agricultural Water Management, Elsevier, vol. 247(C).
    2. C. R. Margules & R. L. Pressey, 2000. "Systematic conservation planning," Nature, Nature, vol. 405(6783), pages 243-253, May.
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    1. Sheng Li & Yulia Kupriyanovich & Cameron Wagg & Fangzhou Zheng & Sheldon Hann, 2023. "Water Deficit Duration Affects Potato Plant Growth, Yield and Tuber Quality," Agriculture, MDPI, vol. 13(10), pages 1-16, October.
    2. Xiaopiao Yang & Yuluan Zhao & Jia Zhao & Chao Shi & Bailu Deng, 2022. "Tourists’ Perceived Attitudes toward the Famous Terraced Agricultural Cultural Heritage Landscape in China," Agriculture, MDPI, vol. 12(9), pages 1-13, September.

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