Development and application of a parsimonious statistical model to predict tile flow in minerogenic soils
Subsurface drainage systems are a dominant flow and nitrate transport pathway from fields to surface waters. Existing methods to estimate tile flow are either expensive, complex or need diverse data types. In this study, a parsimonious statistical model was derived and validated for use to obtain es...
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| Veröffentlicht in: | Agricultural water management 2023-05, Vol.281, p.108244, Article 108244 |
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| creator | Frederiksen, Rasmus R. Larsen, Søren E. Blicher-Mathiesen, Gitte Kronvang, Brian |
| description | Subsurface drainage systems are a dominant flow and nitrate transport pathway from fields to surface waters. Existing methods to estimate tile flow are either expensive, complex or need diverse data types. In this study, a parsimonious statistical model was derived and validated for use to obtain estimates of annual tile flow at field scale (1–10 ha) and catchment scale (200–1400 ha) in tile-drained minerogenic soils. The model was developed from tile flow and precipitation data from 38 drainage stations distributed all over Denmark. Firstly, a significant linear relationship between tile flow and precipitation was derived (R2 =0.57; P |
| doi_str_mv | 10.1016/j.agwat.2023.108244 |
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•Annual tile flow is linearly related to annual precipitation (R2 =0.57).•A threshold amount of precipitation (543 mm) is needed to initiate tile flow.•Precipitation is partitioned into tile flow (48%) and subsurface storage (52%).•We can predict the contribution of tiles to catchment discharge and nitrate-N export.</description><identifier>ISSN: 0378-3774</identifier><identifier>EISSN: 1873-2283</identifier><identifier>DOI: 10.1016/j.agwat.2023.108244</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Denmark ; Linear regression ; nitrate nitrogen ; nitrates ; regression analysis ; statistical models ; Subsurface drainage ; tile drainage ; Tile flow ; Tile nitrate-N transport ; water management ; watersheds</subject><ispartof>Agricultural water management, 2023-05, Vol.281, p.108244, Article 108244</ispartof><rights>2023 The Authors</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c381t-78620d9351aa6f982018dd34982164151d0948add1316dcd4adb8e40b51a5b293</citedby><cites>FETCH-LOGICAL-c381t-78620d9351aa6f982018dd34982164151d0948add1316dcd4adb8e40b51a5b293</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.agwat.2023.108244$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,860,3536,27903,27904,45974</link.rule.ids></links><search><creatorcontrib>Frederiksen, Rasmus R.</creatorcontrib><creatorcontrib>Larsen, Søren E.</creatorcontrib><creatorcontrib>Blicher-Mathiesen, Gitte</creatorcontrib><creatorcontrib>Kronvang, Brian</creatorcontrib><title>Development and application of a parsimonious statistical model to predict tile flow in minerogenic soils</title><title>Agricultural water management</title><description>Subsurface drainage systems are a dominant flow and nitrate transport pathway from fields to surface waters. Existing methods to estimate tile flow are either expensive, complex or need diverse data types. In this study, a parsimonious statistical model was derived and validated for use to obtain estimates of annual tile flow at field scale (1–10 ha) and catchment scale (200–1400 ha) in tile-drained minerogenic soils. The model was developed from tile flow and precipitation data from 38 drainage stations distributed all over Denmark. Firstly, a significant linear relationship between tile flow and precipitation was derived (R2 =0.57; P < 0.0001). The threshold value in the linear regression model (543 mm) can be viewed as a value from where tile flow is initiated, and the slope value (0.48) indicates that when the threshold value is reached, precipitation is partitioned into recharge (52%) and tile flow (48%). Secondly, the developed model was evaluated at catchment scale in 14 smaller Danish catchments and in more detail in a 15th catchment (Lillebæk). The evaluation showed that the model was more accurate and precise at catchment scale than at field scale. This difference might appear because the natural spatial variability in tile flow generation among fields within a catchment is averaged when evaluating the mean of multiple fields at catchment scale. Thirdly, the capability of the model to estimate transport of nitrate-N from tile drains was evaluated in Lillebæk at catchment scale, and here the model performed satisfactorily against the measured transport of nitrate-N (NSE=0.72 and PBIAS=−20%). We suggest that the model can be used to aid agricultural water management.
•Annual tile flow is linearly related to annual precipitation (R2 =0.57).•A threshold amount of precipitation (543 mm) is needed to initiate tile flow.•Precipitation is partitioned into tile flow (48%) and subsurface storage (52%).•We can predict the contribution of tiles to catchment discharge and nitrate-N export.</description><subject>Denmark</subject><subject>Linear regression</subject><subject>nitrate nitrogen</subject><subject>nitrates</subject><subject>regression analysis</subject><subject>statistical models</subject><subject>Subsurface drainage</subject><subject>tile drainage</subject><subject>Tile flow</subject><subject>Tile nitrate-N transport</subject><subject>water management</subject><subject>watersheds</subject><issn>0378-3774</issn><issn>1873-2283</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kLtOAzEQRS0EEuHxBTQuaTb4lV2noEDhKUWigdpy7NnIkddebCcRf49DqKlmNHPPSHMQuqFkSglt7zZTvd7rMmWE8TqRTIgTNKGy4w1jkp-iCeGdbHjXiXN0kfOGECKI6CbIPcIOfBwHCAXrYLEeR--MLi4GHHus8ahTdkMMLm4zzqVucqkBj4doweMS8ZjAOlNwcR5w7-Meu4AHFyDFNQRncI7O5yt01muf4fqvXqLP56ePxWuzfH95WzwsG8MlLU0nW0bsnM-o1m0_l4xQaS0XtaOtoDNqyVxIbS3ltLXGCm1XEgRZVWC2YnN-iW6Pd8cUv7aQixpcNuC9DlBfUNWHYDPRtYcoP0ZNijkn6NWY3KDTt6JEHcSqjfoVqw5i1VFspe6PFNQvdg6SysZBMFVCAlOUje5f_gercoNn</recordid><startdate>20230501</startdate><enddate>20230501</enddate><creator>Frederiksen, Rasmus R.</creator><creator>Larsen, Søren E.</creator><creator>Blicher-Mathiesen, Gitte</creator><creator>Kronvang, Brian</creator><general>Elsevier B.V</general><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20230501</creationdate><title>Development and application of a parsimonious statistical model to predict tile flow in minerogenic soils</title><author>Frederiksen, Rasmus R. ; Larsen, Søren E. ; Blicher-Mathiesen, Gitte ; Kronvang, Brian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c381t-78620d9351aa6f982018dd34982164151d0948add1316dcd4adb8e40b51a5b293</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Denmark</topic><topic>Linear regression</topic><topic>nitrate nitrogen</topic><topic>nitrates</topic><topic>regression analysis</topic><topic>statistical models</topic><topic>Subsurface drainage</topic><topic>tile drainage</topic><topic>Tile flow</topic><topic>Tile nitrate-N transport</topic><topic>water management</topic><topic>watersheds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Frederiksen, Rasmus R.</creatorcontrib><creatorcontrib>Larsen, Søren E.</creatorcontrib><creatorcontrib>Blicher-Mathiesen, Gitte</creatorcontrib><creatorcontrib>Kronvang, Brian</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Agricultural water management</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Frederiksen, Rasmus R.</au><au>Larsen, Søren E.</au><au>Blicher-Mathiesen, Gitte</au><au>Kronvang, Brian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Development and application of a parsimonious statistical model to predict tile flow in minerogenic soils</atitle><jtitle>Agricultural water management</jtitle><date>2023-05-01</date><risdate>2023</risdate><volume>281</volume><spage>108244</spage><pages>108244-</pages><artnum>108244</artnum><issn>0378-3774</issn><eissn>1873-2283</eissn><abstract>Subsurface drainage systems are a dominant flow and nitrate transport pathway from fields to surface waters. Existing methods to estimate tile flow are either expensive, complex or need diverse data types. In this study, a parsimonious statistical model was derived and validated for use to obtain estimates of annual tile flow at field scale (1–10 ha) and catchment scale (200–1400 ha) in tile-drained minerogenic soils. The model was developed from tile flow and precipitation data from 38 drainage stations distributed all over Denmark. Firstly, a significant linear relationship between tile flow and precipitation was derived (R2 =0.57; P < 0.0001). The threshold value in the linear regression model (543 mm) can be viewed as a value from where tile flow is initiated, and the slope value (0.48) indicates that when the threshold value is reached, precipitation is partitioned into recharge (52%) and tile flow (48%). Secondly, the developed model was evaluated at catchment scale in 14 smaller Danish catchments and in more detail in a 15th catchment (Lillebæk). The evaluation showed that the model was more accurate and precise at catchment scale than at field scale. This difference might appear because the natural spatial variability in tile flow generation among fields within a catchment is averaged when evaluating the mean of multiple fields at catchment scale. Thirdly, the capability of the model to estimate transport of nitrate-N from tile drains was evaluated in Lillebæk at catchment scale, and here the model performed satisfactorily against the measured transport of nitrate-N (NSE=0.72 and PBIAS=−20%). We suggest that the model can be used to aid agricultural water management.
•Annual tile flow is linearly related to annual precipitation (R2 =0.57).•A threshold amount of precipitation (543 mm) is needed to initiate tile flow.•Precipitation is partitioned into tile flow (48%) and subsurface storage (52%).•We can predict the contribution of tiles to catchment discharge and nitrate-N export.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.agwat.2023.108244</doi><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; Elsevier ScienceDirect Journals |
| subjects | Denmark Linear regression nitrate nitrogen nitrates regression analysis statistical models Subsurface drainage tile drainage Tile flow Tile nitrate-N transport water management watersheds |
| title | Development and application of a parsimonious statistical model to predict tile flow in minerogenic soils |
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