Boyle, John, Tipping, Ed 
ORCID: 0000-0001-6618-6512, Davies, Jess, Rose, Neil ORCID: 0000-0002-5697-7334, Turner, Simon, Toberman, Hannah, Schillereff, Dan ORCID: 0000-0002-4928-6068 and Chiverrell, Richard ORCID: 0000-0002-7307-2756
(2020)
Comparing lake sediment records of landscape macronutrient loadings with N14CP model simulations: 200 years of change in British lakes.
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Abstract
<jats:p> &lt;p&gt;To fully understand coupling between P and other macronutrients it is necessary to have both long-term data sets and process models, combining empirical reality with numerical simulation of coupling processes. Here, lake sediment records of N and P from four UK lakes are compared with model output from N14CP, a long-term, large-scale model of cycling and export of macronutrients from the landscape. The sediment records at the three lakes that have substantial lowland contributions reveal strongly increasing N and P loading through the late 19&lt;sup&gt;th&lt;/sup&gt; century, with steady increases through the twentieth century. Corresponding changes in N and C isotopes are observed. However, the one mountain lake show maximum N and P loadings in the 19&lt;sup&gt;th&lt;/sup&gt; century, with declines through the twentieth, consistent with a wholly different land use history. The N14CP model shows N and P increasing from mid 19&lt;sup&gt;th&lt;/sup&gt; century for average lowland sites, in agreement with the lowland sediment records. The implications of these results for our knowledge about the history of P and N coupling and leaching from UK soils are discussed.&lt;/p&gt; </jats:p>
| Item Type: | Conference or Workshop Item (Unspecified) |
|---|---|
| Uncontrolled Keywords: | 15 Life on Land |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 07 Apr 2020 10:19 |
| Last Modified: | 20 Apr 2024 03:58 |
| DOI: | 10.5194/egusphere-egu2020-9968 |
| Open Access URL: | https://meetingorganizer.copernicus.org/EGU2020/EG... |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3082249 |
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