{"id":31995,"date":"2019-04-23T10:25:52","date_gmt":"2019-04-23T14:25:52","guid":{"rendered":"https:\/\/bonnefield3854.wpengine.com\/?p=31995"},"modified":"2026-07-07T11:34:26","modified_gmt":"2026-07-07T15:34:26","slug":"soil-erosion-and-degradation-opportunity-amidst-the-loss","status":"publish","type":"post","link":"https:\/\/bonnefield.com\/fr\/news\/soil-erosion-and-degradation-opportunity-amidst-the-loss\/","title":{"rendered":"Partie II\u00a0: \u00c9rosion et d\u00e9gradation des sols\u00a0: une opportunit\u00e9 face \u00e0 la perte"},"content":{"rendered":"

Note: this article first appeared in Global AgInvesting on April 23, 2019 globalaginvesting.com.<\/a> This is the second article of a series published by GAI News. The first installment can be found here<\/a>. The eight-part series will examine how the global food system is set to be altered by eight existing trends.\u00a0<\/em><\/p>\n

Primary author: Jeremy Stroud, Bonnefield, Agricultural Investment Analyst<\/em><\/p>\n

Contributing author: Michael DeSa, AGD Consulting<\/em><\/p>\n

“The nation that destroys its soil destroys itself.” \u2013 F.D. Roosevelt<\/i><\/p>\n

The oft-imagined idea of fertile, pristine farmland as far as the eye can see is drifting towards the past. Land loss is more than just a blow to those who grasp on to a pastoral ideal of the countryside; rather it marks a shift in the global supply dynamics of land resources. The literature presents a singular case: more topsoil is removed from production than is added, with some academics estimating a reduction of about 1 percent each year[1].<\/p>\n

Healthy topsoil is home to billions of thriving micro-organisms which allow crops to be optimally produced. As the top soil is physically eroded or disrupted, its biological matter also declines, and therefore its capacity to produce optimal yields is compromised.<\/p>\n

Land scarcity is not a new concept, although with the level of impact it is expected to have on society, it is a topic that deserves more discussion. In the\u00a0first article of this series<\/a>, we discussed the effects of urbanization on the global agricultural system. This commentary will examine another piece of the farmland usage puzzle and its impact on our collective accessibility to food: land degradation and soil erosion.<\/p>\n

Land degradation refers to human-derived processes which lead to the decline in ecosystem functions[2]. It manifests itself in three different forms:<\/p>\n

physical<\/b>:\u00a0 \u00a0 \u00a0 \u00a0compaction, desertification, and soil erosion (which is the largest contributor to productivity loss)<\/p>\n

chemical<\/b>:\u00a0 \u00a0 \u00a0 soil acidification and salinization<\/p>\n

biological<\/b>:\u00a0 \u00a0 soil organic matter reduction and loss in biodiversity<\/p>\n

Farmers work in different ways to combat chemical and biological forms of land degradation, although the most persistent and arguably the most difficult to mitigate of these, is physical degradation of topsoil. While usually considered as a local concern, soil erosion, compaction and other types of land degradation are globally consequential issues and evidence suggests they will have direct implications for the world’s food supply.<\/p>\n

The Inter-Governmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) is widely considered the international authority on bio-ecological matters[3]. The organization recently concluded a three-year study analyzing the status of global land and soil quality, which collected insights from over one hundred of the world’s leading subject experts. They found that approximately 3.2 billion people, or nearly 43 percent of the world’s population, experience negative economic impacts from land degradation in industries varying from agriculture to tourism, to mining[4]. The effects of land degradation are expected to accelerate in magnitude as the degree of high-volatility weather systems increase[5].<\/p>\n

The Causes and Status of Land Degradation Globally<\/b><\/p>\n

Erosion takes place when soil is left uncovered and the particles are washed or blown away. Heavy downpours, surface water ponding, intensive land use and mechanical human activities are continuing to reduce top soil \u2013 particularly in the most intensively farmed regions. For example, China and India are losing topsoil at three to four times the rate of North America[6]. Land erosion and degradation also occurs due to tillage, deforestation, and an increase in rainfall intensity. One study indicates that there has been a 53 percent increase in the number of extreme rainfall days recorded globally over the past 30 years, thereby leading to record levels of erosion and runoff[7].<\/p>\n

In the past 20\u00a0years, a greater proportion of rainfall has arrived in the form of extreme single-day weather events than has ever been recorded. Figure 1 demonstrates the percentage of land area in the contiguous United States affected by extreme precipitation in each year as reported by the National Oceanic and Atmospheric Administration.\u00a0 The orange line represents a nine-year trailing average, highlighting a significant fact for soil erosion: the average percentage of US land affected by extreme one-day rain events has increased from 7 percent in the 1970’s to 18 percent in 2015.<\/p>\n

Figure 1: Extreme One-Day Weather Events in the Contiguous United States, 1910-2015[8]<\/b><\/p>\n

\"\"<\/p>\n

Erosion naturally leads to further soil compaction, nutrient degradation and impaired water drainage, which reduces the overall productive capacity of the land. With nearly 60 percent of the world’s farmland considered degraded, our arable land base is steadily declining[9].<\/p>\n

Figure 2 demonstrates where the greatest soil erosion concerns are expected to occur in the future based on a detailed joint study by the European Commission and the University of Basel. The R-factor is the rainfall-runoff erosivity factor, or an annual summation of erosion index (EI) values (erosion force of rainfall) in a normal year’s rain.<\/p>\n

Figure 2: The Geo-Spatial Pattern of Soil Erosion, 2018[10]<\/b><\/p>\n

\"\"<\/p>\n

Opportunity Amidst the Loss<\/b><\/p>\n

As soil degradation increases the scarcity of fertile land, it also creates the need to incorporate sustainable farm management practices and pursue responsible investment goals. Farmland investors and stakeholders should consider five primary categories in their path to mitigate soil erosion effects and potentially reap the upside potential that follows:<\/p>\n

1.) Deal Sourcing & Region Identification: Investors should look to identify farming regions with topsoil abundance, low wind and flood risk, and relatively flat or rolling terrain. Investment teams have the responsibility to review an area’s historical and forecasted climatic risks in advance of deal selection. This includes past precipitation and temperature averages, available soil and yield mapping data, historical input usage, previous environmental issues and\/or remediation measures. Investors may also want to consider geographic regions that successfully practice no-till land preparation, such as Argentina, Australia, and Canada.<\/p>\n

2.) Due Diligence: Most farmland asset managers should be able to leverage geo-spatial information data and measurement tools to determine how past farm imagery compares to the current status of the field. It is also worthwhile to consider warning signs such as noticeable compaction, dispersed ponding, and natural drainage flows.<\/p>\n

3.) Sustainable Farm Management Practices: Farm operators have the opportunity to replenish topsoil quality through the implementation of practices such as no-till and low-till farming, as well as the regular use of green manure crops to enhance soil biodiversity, structure, and to replenish nutrients. Further, integrated pest management (IPM) plans leveraging biological and mechanical processes can control pests while reducing chemical pesticide use.<\/p>\n

4.) Investment in Loss Prevention & Restoration: Capital expenditure in ditching, tile drainage, external tree-borders, berms, and riparian-buffer maintenance can control soil erosion effects while also mitigating natural disaster risks such as flooding, wind damage, and surface ponding. For permanent and specialty crop strategies, the implementation of technology and products offered by groups like the Land Life Company \u2013 a startup that is working to restore ecosystems in degraded soil regions through reforestation efforts \u2013 should be considered CapEx well spent.[14]<\/p>\n

5.) Long-term Tenure Mindset: Investors who plan to own and\/or operate farmland for the long-term will be naturally incentivized to adopt sustainable land management practices which can promote the health and productivity of soil. Farmland owners should be cautious of short-term (less than three year) lease structures which may create the risks of nutrient mining or high-intensity agricultural practices.<\/p>\n

With land degradation on the rise, the tools to reduce soil loss and protect these investments are slowly becoming more available and adoptable. As soils from intensive agricultural regions continue to deplete, we hypothesize that land managed with sustainable practices shall prove to be significantly more valuable in the decades to come.<\/p>\n

SOURCES:<\/strong><\/p>\n

[1]\u00a0Pimentel and Burgess, “Soil Erosion Threatens Food Production<\/a>,” 2013<\/p>\n

[2]\u00a0IPBES<\/a>, 2018<\/p>\n

[3]\u00a0IPBES<\/a>, 2018<\/p>\n

[4]\u00a0IPBES<\/a>, 2018<\/p>\n

[5]\u00a0IPBES<\/a>, 2018<\/p>\n

[6]\u00a0David Pimentel, as quoted in a\u00a0Cornell University Article<\/a>, 2006<\/p>\n

[7]\u00a0Dourte et al.,\u00a0Climate Risk Management Journal<\/a>, 2015<\/p>\n

[8]\u00a0National Oceanic and Atmospheric Administration<\/a>, 2016<\/p>\n

[9]\u00a0Stanford University Course on Topsoil Loss<\/a>, 2015<\/p>\n

[10]\u00a0European Commission Joint Research Centre, World Atlas of Desertification<\/a>, 2018<\/p>\n

[11]\u00a0European Commission Joint Research Centre, University of Basel and Centre for Ecology & Hydrology<\/a>, 2017<\/p>\n

[12]\u00a0European Commission Joint Research Centre, World Atlas of Desertification<\/a>, 2018<\/p>\n

[13]\u00a0Jeremy Grantham,\u00a0The Race of Our Lives: Revisited<\/a>, 2018<\/p>\n

[14]\u00a0Land Life Company<\/a>, 2019<\/p>\n","protected":false},"excerpt":{"rendered":"

Remarque\u00a0: cet article a \u00e9t\u00e9 publi\u00e9 pour la premi\u00e8re fois dans Global AgInvesting le 23 avril 2019. globalaginvesting.com.<\/a> Ceci est le deuxi\u00e8me article d'une s\u00e9rie publi\u00e9e par GAI News. Le premier versement peut \u00eatre trouv\u00e9 ici<\/a>. La s\u00e9rie en huit parties examinera comment le syst\u00e8me alimentaire mondial est appel\u00e9 \u00e0 \u00eatre modifi\u00e9 par huit tendances existantes.\u00a0<\/em><\/p>","protected":false},"author":252,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[236],"tags":[],"class_list":["post-31995","post","type-post","status-publish","format-standard","hentry","category-quarterly-newsletters-insights"],"yoast_head":"\nPart II: Soil Erosion and Degradation: Opportunity Amidst the Loss - Bonnefield<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bonnefield.com\/fr\/news\/soil-erosion-and-degradation-opportunity-amidst-the-loss\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Part II: Soil Erosion and Degradation: Opportunity Amidst the Loss - Bonnefield\" \/>\n<meta property=\"og:description\" content=\"Note: this article first appeared in Global AgInvesting on April 23, 2019 globalaginvesting.com. 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