{"id":2549,"date":"2024-04-23T15:11:54","date_gmt":"2024-04-23T13:11:54","guid":{"rendered":"https:\/\/urbag.eu\/?p=2549"},"modified":"2024-04-23T15:11:54","modified_gmt":"2024-04-23T13:11:54","slug":"new-preprint-food-water-climate-nexus-green-infrastructure","status":"publish","type":"post","link":"https:\/\/webs.uab.cat\/atmosphere\/2024\/04\/23\/new-preprint-food-water-climate-nexus-green-infrastructure\/","title":{"rendered":"New preprint: “The food-water-climate nexus of green infrastructure: Examining ecosystem services trade-offs of peri-urban agriculture”"},"content":{"rendered":"

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A new paper led by Ricard Segura Barrero<\/a> has been submitted to the journal Science of the Total Environment and has now been announced as a preprint in the Social Science Research Network (SSRN).<\/p>\n

See full article\/ Veure l’article complet<\/strong><\/a><\/p>\n

 <\/p>\n

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

Emission reduction, heat mitigation, and improved access to water and food provision are increasingly critical challenges for urban areas in the context of global climate change adaptation and mitigation. The revival of local agricultural production is often lauded as a potential nature-based solution. However, an expansion of peri-urban agriculture (peri-UA) may entail significant ecosystem trade-offs. This study explores the impacts on the food-water-climate nexus of different scenarios of peri-urban agricultural expansion in a semi-arid, Mediterranean climate, addressing local food provision, freshwater use, local temperature regulation, global climate change mitigation, and the trade-offs thereof. Examining four theoretical land-use scenarios in the Metropolitan Area of Barcelona, the study integrates estimates of food provision and irrigation water requirements based on a georeferenced urban metabolism approach with the local climate and biogenic carbon balance simulated with an atmospheric model.<\/p>\n

Our study reveals that a 31% (+17.27 km2) and 115% (+64.25 km2) increase in the current peri-UA in the AMB results in an increase in local food production of 24% (+16,503 tons year-1) and 86% (+58,940 tons year-1), and irrigation water requirements by 10% (+3.2 hm3) and 44% (+14.1 hm3), respectively. The expansion of irrigated peri-UA can potentially reduce near-surface temperatures by 0.7\u00b0C, albeit temperature reductions in the densest urban areas are minimal. Since the additional peri-UA is achieved by replacing natural non-forested and forest areas, the simulations predict reductions in the net ecosystem productivity of up to 18.5% and total carbon stocks by 3.3%. This integrated approach combining urban metabolism and atmospheric modelling to determine the trade-offs appears to be a promising tool for informing land-use decision-making in the context of urban climate adaptation and mitigation.<\/p>\n

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Catal\u00e0:<\/strong><\/p>\n

La reducci\u00f3 d’emissions, la mitigaci\u00f3 de la calor i la millora de l’acc\u00e9s a l’aigua i al subministrament d’aliments s\u00f3n desafiaments cada vegada m\u00e9s cr\u00edtics per a les \u00e0rees urbanes en el context de l’adaptaci\u00f3 i mitigaci\u00f3 del canvi clim\u00e0tic global. La revitalitzaci\u00f3 de la producci\u00f3 agr\u00edcola local sovint \u00e9s elogiada com una possible soluci\u00f3. No obstant aix\u00f2, una expansi\u00f3 de l’agricultura periurbana (peri-UA) pot comportar importants compensacions ecosist\u00e8miques. Aquest estudi explora els impactes en el nexe aliment-aigua-clima de diferents escenaris d’expansi\u00f3 agr\u00edcola periurbana en un clima semi\u00e0rid mediterrani, abordant el subministrament d’aliments local, l’\u00fas d’aigua dol\u00e7a, la regulaci\u00f3 de la temperatura local, la mitigaci\u00f3 del canvi clim\u00e0tic global i els compromisos associats. Examinant quatre escenaris te\u00f2rics d’\u00fas del s\u00f2l a l’\u00c0rea Metropolitana de Barcelona, l’estudi integra estimacions del subministrament d’aliments i els requeriments d’irrigaci\u00f3 basats en un enfocament de metabolisme urb\u00e0 georeferenciat amb el clima local i el balan\u00e7 de carboni biog\u00e8nic simulat amb un model atmosf\u00e8ric.<\/p>\n

El nostre estudi revela que un augment del 31% (+17,27 km2) i del 115% (+64,25 km2) en la actual peri-UA a l’AMB es tradueix en un augment de la producci\u00f3 local d’aliments del 24% (+16.503 tones any-1) i del 86% (+58.940 tones any-1), i dels requeriments d’irrigaci\u00f3 en un 10% (+3,2 hm3) i un 44% (+14,1 hm3), respectivament. L’expansi\u00f3 de la peri-UA irrigada pot reduir potencialment les temperatures a prop de la superf\u00edcie en 0,7\u00b0C, tot i que les reduccions de temperatura en les \u00e0rees urbanes m\u00e9s densament poblades s\u00f3n m\u00ednimes. Com que la peri-UA addicional s’aconsegueix substituint \u00e0rees naturals no forestals i forestals, les simulacions preveuen reduccions en la productivitat ecosist\u00e8mica neta de fins a un 18,5% i en els stocks de carboni total en un 3,3%. Aquest enfocament integrat que combina el metabolisme urb\u00e0 i la modelitzaci\u00f3 atmosf\u00e8rica per determinar els compromisos sembla ser una eina prometedora per informar la presa de decisions sobre l’\u00fas del s\u00f2l en el context de l’adaptaci\u00f3 i la mitigaci\u00f3 del clima urb\u00e0.<\/p>\n

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\"\"<\/a><\/p>\n

Graphical abstract<\/p>\n","protected":false},"excerpt":{"rendered":"

Title: The Food-Water-Climate Nexus of Green Infrastructure: Examining Ecosystem Services Trade-Offs of Peri-Urban Agriculture \/
\nThis paper explores the impacts on the food-water-climate nexus of different scenarios of peri-urban agricultural expansion in a semi-arid, Mediterranean climate, addressing local food provision, freshwater use, local temperature regulation, global climate change mitigation, and the trade-offs thereof.<\/p>\n","protected":false},"author":3153,"featured_media":2552,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[304,305,298,14,306,182,307,15],"class_list":["post-2549","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-carbon-capture","tag-irrigation","tag-land-use-scenarios","tag-local-food","tag-local-food-production","tag-peri-urban-agriculture","tag-temperature-regulation","tag-urban-agriculture"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/2549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/users\/3153"}],"replies":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/comments?post=2549"}],"version-history":[{"count":0,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/2549\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media\/2552"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media?parent=2549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/categories?post=2549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/tags?post=2549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}