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Nutrient Load Mitigation with Wintertime Cover as Estimated by the INCA Model

Rankinen, Katri and Turtola, Eila and Lemola, Riitta and Futter, Martyn and Cano Bernal, Jose Enrique (2021). Nutrient Load Mitigation with Wintertime Cover as Estimated by the INCA Model. Water. 13 , 450
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Abstract

Increased nutrient loading causes deterioration of receiving surface waters in areas of intensive agriculture. While nitrate and particulate phosphorus load can be efficiently controlled by reducing tillage frequency and increasing vegetation cover, many field studies have shown simultaneously increased loading of bioavailable phosphorus. In the latest phase of the Rural Programme of EU agri-environmental measures, the highest potential to reduce the nutrient loading to receiving waters were the maximum limits for fertilization of arable crops and retaining plant cover on fields with, e.g., no-till methods and uncultivated nature management fields. Due to the latter two measures, the area of vegetation cover has increased since 1995, suggesting clear effects on nutrient loading in the catchment scale as well. We modeled the effectiveness of agri-environmental measures to reduce phosphorus and nitrogen loads to waters and additionally tested the performance of the dynamic, process-based INCA-P (Integrated Nutrients in Catchments-Phosphorus) model to simulate P dynamics in an agricultural catchment. We concluded that INCA-P was able to simulate both fast (immediate) and slow (non-immediate) processes that influence P loading from catchments. Based on our model simulations, it was also evident that no-till methods had increased bioavailable P load to receiving waters, even though total P and total N loading were reduced.

Authors/Creators:Rankinen, Katri and Turtola, Eila and Lemola, Riitta and Futter, Martyn and Cano Bernal, Jose Enrique
Title:Nutrient Load Mitigation with Wintertime Cover as Estimated by the INCA Model
Series Name/Journal:Water
Year of publishing :2021
Volume:13
Article number:450
Number of Pages:17
Publisher:MDPI
ISSN:2073-4441
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Oceanography, Hydrology, Water Resources
Keywords:mathematical modeling, agricultural policy, wintertime vegetation cover, dissolved reactive phosphorus
URN:NBN:urn:nbn:se:slu:epsilon-p-111284
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111284
Additional ID:
Type of IDID
DOI10.3390/w13040450
Web of Science (WoS)000624887700001
ID Code:22868
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Aquatic Sciences and Assessment
Deposited By: SLUpub Connector
Deposited On:01 Apr 2021 08:43
Metadata Last Modified:01 Apr 2021 08:51

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