{"id":650,"date":"2012-02-09T17:40:16","date_gmt":"2012-02-09T17:40:16","guid":{"rendered":"http:\/\/www.agron.iastate.edu\/glsi\/?p=650"},"modified":"2025-09-29T04:31:49","modified_gmt":"2025-09-29T09:31:49","slug":"wetland-hydrologic-class-change-from-prior-to-european-settlement-to-present-on-the-des-moines-lobe-iowa","status":"publish","type":"post","link":"https:\/\/www.agron.iastate.edu\/glsi\/manuscripts\/wetland-hydrologic-class-change-from-prior-to-european-settlement-to-present-on-the-des-moines-lobe-iowa\/","title":{"rendered":"Wetland Hydrologic Class Change from Prior to European Settlement to Present on the Des Moines Lobe, Iowa"},"content":{"rendered":"
\n

It has been hypothesized that wetland restoration policies have favored the restoration of the wettest classes of wetlands on the Des Moines Lobe of the prairie pothole region. To test this hypothesis we compared pre-drainage wetland distributions based on soils data and National Wetland Inventory (NWI) estimates of contemporary wetland distributions on the Des Moines Lobe. Based on the NWI data, the Des Moines Lobe today has only 3\u20134% of the wetland area that it had prior to the onset of drainage. On the basis of their soils, pre-drainage wetlands were predominantly temporarily flooded to saturated wetlands (84%), with only about 6% of the wetlands with water regimes classified as semi-permanently to permanently flooded. Depending on the interpretation of wetland modifiers on NWI maps, wetlands classified by the NWI as semi-permanent to permanently flooded make up more than 41% of the wetland area while wetlands with temporarily flooded to saturated water regimes account for 45\u201358% of the Lobe\u2019s wetland area. The water regimes of contemporary wetlands when compared to their historic regimes suggest that many of today\u2019s wetlands have different water regimes than they did prior to the onset of drainage. Because of the regional lowering of the groundwater table, many of today\u2019s wetlands have drier water regimes, but some have wetter water regimes because they receive drainage tile inputs. Our results indicate that restoration has favored the wettest classes of wetlands and that temporarily to saturated wetland classes have not been restored in proportion to their relative abundance in the pre-drainage landscape.<\/p>\n<\/div><\/div>\n\n

\n

Miller, B.A., W.G. Crumpton, and A.G. van der Valk. 2012. Wetland hydrologic class change from prior to European settlement to present on the Des Moines Lobe, Iowa. Wetlands Ecology and Management 20(1):1-8. doi: 10.1007\/s11273-011-9237-z.<\/a><\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

The water regimes of contemporary wetlands when compared to their historic regimes suggest that many of today\u2019s wetlands have different water regimes than they did prior to the onset of drainage. Because of the regional lowering of the groundwater table, many of today\u2019s wetlands have drier water regimes, but some have wetter water regimes because they receive drainage tile inputs. Our results indicate that restoration has favored the wettest classes of wetlands and that temporarily to saturated wetland classes have not been restored in proportion to their relative abundance in the pre-drainage landscape.<\/p>\n","protected":false},"author":3216,"featured_media":10948,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[5,7],"tags":[21,33,60,80,96,138,143,145,146,147,148],"class_list":["post-650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-manuscripts","category-miller","tag-change","tag-des-moines-lobe","tag-iowa","tag-national-wetland-inventory","tag-prairie-wetlands","tag-tile-drainage","tag-water-regime","tag-wetland-classification","tag-wetland-loss","tag-wetland-restoration","tag-wetlands"],"acf":[],"featured_image_urls_v2":{"full":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2012\/02\/Wetland-hydrologic-class-change.jpg",288,224,false],"thumbnail":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2012\/02\/Wetland-hydrologic-class-change-150x150.jpg",150,150,true],"medium":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2012\/02\/Wetland-hydrologic-class-change.jpg",288,224,false],"medium_large":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2012\/02\/Wetland-hydrologic-class-change.jpg",288,224,false],"large":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2012\/02\/Wetland-hydrologic-class-change.jpg",288,224,false],"1536x1536":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2012\/02\/Wetland-hydrologic-class-change.jpg",288,224,false],"2048x2048":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2012\/02\/Wetland-hydrologic-class-change.jpg",288,224,false]},"post_excerpt_stackable_v2":"

The water regimes of contemporary wetlands when compared to their historic regimes suggest that many of today\u2019s wetlands have different water regimes than they did prior to the onset of drainage. Because of the regional lowering of the groundwater table, many of today\u2019s wetlands have drier water regimes, but some have wetter water regimes because they receive drainage tile inputs. Our results indicate that restoration has favored the wettest classes of wetlands and that temporarily to saturated wetland classes have not been restored in proportion to their relative abundance in the pre-drainage landscape.<\/p>\n","category_list_v2":"Manuscripts<\/a>, Miller<\/a>","author_info_v2":{"name":"Bradley Miller","url":"https:\/\/www.agron.iastate.edu\/glsi\/author\/millerba\/"},"comments_num_v2":"0 comments","yoast_head":"\nWetland Hydrologic Class Change from Prior to European Settlement to Present on the Des Moines Lobe, Iowa - Geospatial Laboratory for Soil Informatics<\/title>\n<meta name=\"description\" content=\"Contemporary wetlands show altered water regimes compared to historic conditions, with some drier and others wetter due to drainage tile inputs.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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