The UK Environmental Change Network datasets – integrated and co-located data for long-term environmental research (1993–2015)

Rennie, S.; Andrews, Chris; Atkinson, Sarah; Beaumont, D. A.; Benham, Sue; Bowmaker, V.; Dick, Jan; Dodd, B.; McKenna, C.; Pallett, D.; Rose, Rob; Schäfer, Stefanie; Scott, T.; Taylor, C.; Watson, Helen

doi:10.5194/essd-12-87-2020

Cited by 9 publications

(8 citation statements)

References 45 publications

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“…Weekly ECN water chemistry sampling was undertaken at the wetland‐pond outflow from January 1995 until June 2017 (Supplemental Figure S2) (Rennie et al., 2017). A suite of standard parameters was measured, including total P (TP), soluble reactive P (SRP), total dissolved N (TDN), ammonium (NH 4 –N), nitrate (NO 3 –N), and total iron (TFe) (Rennie et al., 2020).…”

Section: Methodsmentioning

confidence: 99%

Biogeochemical and climate drivers of wetland phosphorus and nitrogen release: Implications for nutrient legacies and eutrophication risk

et al. 2020

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The dynamics and processes of nutrient cycling and release were examined for a lowland wetland-pond system, draining woodland in southern England. Hydrochemical and meteorological data were analyzed from 1997 to 2017, along with high-resolution in-situ sensor measurements from 2016 to 2017. The results showed that even a relatively pristine wetland can become a source of highly-bioavailable phosphorus, nitrogen and silicon during low-flow periods of high ecological sensitivity. The drivers of nutrient release were primary production and accumulation of biomass, which provided a carbon source for microbial respiration and, via mineralization, a source of bioavailable nutrients for phosphorus and nitrogen co-limited microbes. During high-intensity nutrient-release events, the dominant nitrogen-cycling process switched from denitrification to ammonification, and a positive-This article is protected by copyright. All rights reserved. 2 feedback cycle of phosphorus and nitrogen release was sustained over several months during summer and fall. Temperature controls on microbial activity were the primary drivers of short-term (day-today) variability in phosphorus release, with subdaily (diurnal) fluctuations in phosphorus concentrations driven by water-body metabolism. Inter-annual relationships between nutrient release and climate variables indicated 'memory' effects of antecedent climate drivers, through accumulated legacy organic matter from the previous year's biomass production. Natural flood management initiatives promote the use of wetlands as 'nature-based solutions' in climate-change adaptation, flood management, and soil and water conservation. This study highlights potential water-quality trade-offs, and shows how the convergence of climate and biogeochemical drivers of wetland nutrient release can amplify background nutrient signals by mobilizing legacy nutrients, causing water-quality impairment and accelerating eutrophication risk.

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Section: Methodsmentioning

confidence: 99%

Biogeochemical and climate drivers of wetland phosphorus and nitrogen release: Implications for nutrient legacies and eutrophication risk

et al. 2020

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“…Dry bulk density (BD) was determined at the start of the experiment next to each chamber using the core-cutter method (Amirinejad et al 2011 ) and used to convert the gravimetric moisture determined during each of the gas sampling events into percent soil water-filled pore spaces (WFPS). Daily precipitation was obtained from a nearby weather station within the Environment Change Network (ECN) at Rowden, North Wyke (Lane 1997 ; Rennie et al 2020 ).…”

Section: Methodsmentioning

confidence: 99%

Soil N2O and CH4 emissions from fodder maize production with and without riparian buffer strips of differing vegetation

et al. 2022

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Purpose Nitrous oxide (N2O) and methane (CH4) are some of the most important greenhouse gases in the atmosphere of the 21st century. Vegetated riparian buffers are primarily implemented for their water quality functions in agroecosystems. Their location in agricultural landscapes allows them to intercept and process pollutants from adjacent agricultural land. They recycle organic matter, which increases soil carbon (C), intercept nitrogen (N)-rich runoff from adjacent croplands, and are seasonally anoxic. Thus processes producing environmentally harmful gases including N2O and CH4 are promoted. Against this context, the study quantified atmospheric losses between a cropland and vegetated riparian buffers that serve it. Methods Environmental variables and simultaneous N2O and CH4 emissions were measured for a 6-month period in a replicated plot-scale facility comprising maize (Zea mays L.). A static chamber was used to measure gas emissions. The cropping was served by three vegetated riparian buffers, namely: (i) grass riparian buffer; (ii) willow riparian buffer and; (iii) woodland riparian buffer, which were compared with a no-buffer control. Results The no-buffer control generated the largest cumulative N2O emissions of 18.9 kg ha− 1 (95% confidence interval: 0.5–63.6) whilst the maize crop upslope generated the largest cumulative CH4 emissions (5.1 ± 0.88 kg ha− 1). Soil N2O and CH4-based global warming potential (GWP) were lower in the willow (1223.5 ± 362.0 and 134.7 ± 74.0 kg CO2-eq. ha− 1 year− 1, respectively) and woodland (1771.3 ± 800.5 and 3.4 ± 35.9 kg CO2-eq. ha− 1 year− 1, respectively) riparian buffers. Conclusions Our results suggest that in maize production and where no riparian buffer vegetation is introduced for water quality purposes (no buffer control), atmospheric CH4 and N2O concerns may result.

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“…Average daily precipitation was acquired from data measured at hourly intervals by an automatic weather station courtesy of the Environmental Change Network (ECN) at Rowden, North Wyke (Lane, 1997; Rennie et al., 2020).…”

Section: Methodsmentioning

confidence: 99%

Soil methane (CH₄) fluxes in cropland with permanent pasture and riparian buffer strips with different vegetation^#

Dlamini

Cardenas

Tesfamariam

et al. 2021

J. Plant Nutr. Soil Sci.

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Background Methane (CH4) has a global warming potential (GWP) 28 times that of carbon dioxide (CO2) over a 100‐year horizon. Riparian buffers strips are widely implemented for their water quality protection functions along agricultural land, but conditions prevailing within them may increase the production of radiative greenhouse gases (GHGs), including CH4. However, a few information is available regarding the dynamics of unintended emissions of soil CH4 in these commonplace features of agroecosystems and how the dynamics compare with those for agricultural land. Aims To understand the dynamics of soil CH4 fluxes from a permanent upslope pasture and contiguous riparian buffer strips with different (grass, willow, and woodland) vegetation as well controls with no buffer vegetation, an experiment was carried out using the static chamber technique on a replicated plot‐scale facility. Methods Gas fluxes were measured periodically with soil and environmental variables between June 2018 and February 2019 at North Wyke, UK. Results Soils under all treatments were sinks of soil CH4 with the willow riparian buffer (–2555 ± 318.7 g CH4 ha–1) having the lowest soil CH4 flux followed by the grass riparian buffer (–2532 ± 318.7 g CH4 ha–1), woodland riparian buffer (–2318.0 ± 246.4 g CH4 ha–1), no‐buffer control (–1938.0 ± 374.4 g CH4 ha–1), and last, the upslope pasture (–1328.0 ± 89.0 g CH4 ha–1), which had a higher flux. Conclusions The three vegetated riparian buffers were more substantial soil CH4 sinks, suggesting that they may help reduce soil CH4 fluxes into the atmosphere in similar agroecosystems.

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The UK Environmental Change Network datasets – integrated and co-located data for long-term environmental research (1993–2015)

Cited by 9 publications

References 45 publications

Biogeochemical and climate drivers of wetland phosphorus and nitrogen release: Implications for nutrient legacies and eutrophication risk

Biogeochemical and climate drivers of wetland phosphorus and nitrogen release: Implications for nutrient legacies and eutrophication risk

Soil N2O and CH4 emissions from fodder maize production with and without riparian buffer strips of differing vegetation

Soil methane (CH₄) fluxes in cropland with permanent pasture and riparian buffer strips with different vegetation^#

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The UK Environmental Change Network datasets – integrated and co-located data for long-term environmental research (1993–2015)

Cited by 9 publications

References 45 publications

Biogeochemical and climate drivers of wetland phosphorus and nitrogen release: Implications for nutrient legacies and eutrophication risk

Biogeochemical and climate drivers of wetland phosphorus and nitrogen release: Implications for nutrient legacies and eutrophication risk

Soil N2O and CH4 emissions from fodder maize production with and without riparian buffer strips of differing vegetation

Soil methane (CH4) fluxes in cropland with permanent pasture and riparian buffer strips with different vegetation#

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Product

Resources

About

Soil methane (CH₄) fluxes in cropland with permanent pasture and riparian buffer strips with different vegetation^#