{"query_echo":{"q":"","filters":{"analysis_type":["regional water balance modeling"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'regional water balance modeling' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":1,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=regional+water+balance+modeling","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"ucs-001124","url":"https://climateinsightsdirectory.org/document/ucs-001124","title":"Turning Soils into Sponges","publisher":{"name":"Union of Concerned Scientists","organization":"union-of-concerned-scientists"},"document_type":"report","language":"en","date_published":"2017-08","source_url":"https://www.ucs.org/sites/default/files/attach/2017/08/turning-soils-into-sponges-full-report-august-2017.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The report argues that shifting from annual monocrops to farming systems with continuous living cover—such as perennials and cover crops—can create 'spongy' soils that reduce flood runoff and increase water availability during droughts. Based on a meta-analysis of 126 experiments and regional modeling in Iowa, the authors find that these practices improve water infiltration and soil porosity, potentially reducing rainfall runoff by up to 20% during floods and increasing crop water availability by up to 16% during droughts. The report concludes that current federal farm policies and crop insurance programs create barriers to these transitions and recommends USDA and Congressional reforms to incentivize ecological soil management.","ai_generated":true,"unit":"ucs-001124#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Extreme weather events, specifically floods and droughts, have caused approximately $340.4 billion in damages in the United States from 1980 to 2017.","ai_generated":true,"unit":"ucs-001124#insight-1","date_modified":"2026-10-23"},{"text":"Conventional annual crop systems in the Midwest, which often leave fields bare and rely on tillage, degrade soil structure and reduce the soil's capacity to store water and infiltrate rainfall.","ai_generated":true,"unit":"ucs-001124#insight-2","date_modified":"2026-10-23"},{"text":"A meta-analysis of 126 field experiments across six continents found that 70% of cases showed increased water infiltration when using conservation or ecological practices.","ai_generated":true,"unit":"ucs-001124#insight-3","date_modified":"2026-10-23"},{"text":"Maintaining 'continuous living cover'—achieved through perennials, cover crops, or improved grazing—is identified as the most effective strategy for improving water infiltration.","ai_generated":true,"unit":"ucs-001124#insight-4","date_modified":"2026-10-23"},{"text":"Perennial crop systems are particularly effective at managing heavy rainfall; over half of the experiments involving perennials increased infiltration enough to absorb a heavy rain event of one inch per hour.","ai_generated":true,"unit":"ucs-001124#insight-5","date_modified":"2026-10-23"},{"text":"Diversifying agricultural practices to include cover crops and perennials increases soil porosity by an average of 8% and makes an average of 9% more water available to plants compared to systems that leave soil bare.","ai_generated":true,"unit":"ucs-001124#insight-6","date_modified":"2026-10-23"},{"text":"Modeling in Iowa suggests that converting the most-erodible or least-profitable one-third of cropped acres to perennial or cover-crop systems could reduce rainfall runoff by up to 20% during floods and increase crop water availability by up to 16% during droughts.","ai_generated":true,"unit":"ucs-001124#insight-7","date_modified":"2026-10-23"},{"text":"Future climate projections for Iowa indicate that by the end of the 21st century, temperatures could rise to 16.4ºC and annual rainfall could increase by 35 to 80 mm, making soil-based adaptation critical.","ai_generated":true,"unit":"ucs-001124#insight-8","date_modified":"2026-10-23"},{"text":"Current federal crop insurance programs may hinder the adoption of cover crops because contracts have been negated due to uncertainty regarding cash crop yield impacts.","ai_generated":true,"unit":"ucs-001124#insight-9","date_modified":"2026-10-23"},{"text":"The report recommends that the USDA and Congress incorporate soil quality and management metrics into the federal crop insurance program to reward farmers who implement continuous living cover.","ai_generated":true,"unit":"ucs-001124#insight-10","date_modified":"2026-10-23"}],"climate_tags":["climate change adaptation","Flood mitigation","agroecology"],"geography_discussed":["Midwestern United States","Cedar Rapids","California"],"frame_perspective":[],"analysis_type":["meta-analysis","regional water balance modeling","policy analysis"]}]}