Suspended solid yield from forest harvesting on upland blanket peat

Rodgers, M.; O’Connor, Mark; Robinson, Mark; Müller, Markus; Poole, Russell; Xiao, Liwen

doi:10.1002/hyp.7836

Cited by 17 publications

(15 citation statements)

References 24 publications

(39 reference statements)

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“…It should also be noted that this sub-catchment is being clearfelled in a pro-active manner, in order to minimise prolonged disturbance of sensitive aquatic environments, and therefore only small coupes are being cleared each year. The results presented here indicate that even though clearfelling has in the past been related to high levels of suspended sediment export (Rodgers et al, 2011), a management regime that includes felling in small increments may reduce the impact on downstream systems.…”

Section: Discussionmentioning

confidence: 74%

“…The role of stream discharge in the transport of particulate material is well recognised (Strohmeier et al, 2010;Pierson et al, 2008) and has been previously highlighted in studies in the Glenamong sub-catchment (Rodgers et al, 2011). In contrast, the smoothing curve for the effect of cumulative rainfall on POC concentrations showed an initial increase, but then a gradual decline in influence of this driver.…”

Section: Discussionmentioning

confidence: 87%

“…Land use changes, such as the intensification of farming and afforestation, have also been linked to increases in both DOC and POC concentrations (Rodgers et al, 2011;Worrall and Burt, 2007;Cummins and Farrell, 2003). In Ireland, the main land use change in peatland catchments has been the establishment of commercial forestry and subsequent clearfelling.…”

Section: Introductionmentioning

confidence: 99%

“…Currently 10.15 % or 2 of land area in Ireland are under commercial plantation forestry (National Forest Inventory, 2007). It is estimated that 3000 km 2 of this is located on peatland in the west of the country (Rodgers et al, 2011;EEA, 2004). Forestry clearfelling and extraction of timber can result in an increase in particulate matter in streams (Rodgers et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…It is estimated that 3000 km 2 of this is located on peatland in the west of the country (Rodgers et al, 2011;EEA, 2004). Forestry clearfelling and extraction of timber can result in an increase in particulate matter in streams (Rodgers et al, 2011). Other causes of accelerated peat erosion include overgrazing by sheep and other livestock (Grayson et al, 2012;Marttila and Klove, 2010;Stott and Mount, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Identifying the role of environmental drivers in organic carbon export from a forested peat catchment

Ryder

Eyto

Dillane

et al. 2014

Science of The Total Environment

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Highlights:1. Loads of 9.5 t DOC km 2 year -1 and 6.2 t POC km 2 year -1 were exported from peatland. 2.Climatic factors explained 59.7% and 58.3% of deviance in stream DOC and POC.3. Soil temperature, discharge and drought were significant drivers of DOC concentrations. 4.Soil temperature, stream discharge rainfall were significant drivers of POC concentrations.Key words: Peat catchment, dissolved organic carbon, particulate organic carbon, high resolution monitoring, climate effects. AbstractCarbon export in streams draining peat catchments represents a potential loss of carbon from longterm stores to downstream aquatic systems and ultimately, through mineralisation, to the atmosphere. There is now a large body of evidence that dissolved organic carbon (DOC) export has 2 increased significantly in recent decades at many sites, although there is still debate about the drivers of this increase. In this study, DOC export and particulate organic carbon (POC) export were quantified from a forested peatland catchment in the west of Ireland over two years at a fine temporal resolution. The principle drivers of change in stream DOC and POC concentrations were investigated using a general additive modelling (GAM) approach. The study period included drought conditions in early summer 2010 and clearfelling of some commercial forestry in early 2011. The results indicated that annual loads of 9.5 t DOC km 2 year -1 and 6.2 t POC km 2 year -1 were exported from the catchment in 2010. This combined annual load of 15.7 t C km 2 year -1 would represent between 0.01 % and 0.02 % of typical estimates for peat soil carbon storage in the region. Soil temperature, river discharge and drought explained 59.7 % the deviance in DOC concentrations, while soil temperature, river discharge, and rainfall were the significant drivers of variation in POC concentrations, explaining 58.3 % of deviance. Although clearfelling was not a significant factor in either model, large spikes in POC export occurred in 2011 after the first forestry clearance. The results illustrate the complexity of the interactions between climate and land management in driving stream water carbon export. They also highlight the sensitivity of peatland carbon stores to changes in temperature and precipitation, which are projected to be more extreme and variable under future climate scenarios.3

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Section: Discussionmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Identifying the role of environmental drivers in organic carbon export from a forested peat catchment

Ryder

Eyto

Dillane

et al. 2014

Science of The Total Environment

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Buffer effects of streamside native forests on water provision in watersheds dominated by exotic forest plantations

et al. 2014

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The Valdivian rainforest ecoregion in Chile (35°-48°S) has a high conservation priority worldwide. These forests are also keys for social welfare as a result of their supply of timber as well as ecosystem services. Forests in the ecoregion have been extensively converted to fast growing Pinus radiata and Eucalyptus spp. plantations for timber production promoted by public policies and timber companies. This study describes the results of detailed measurements of hydrology and stream water chemistry in eight small watersheds in south central Chile, subjected to replacement of native temperate rainforest by exotic Eucalyptus plantations. In this system, watersheds have streamside buffers of native forest (SNFW) with varying widths. Results indicate that retention of SNFW counteracts hydrologic effects of Eucalyptus plantations, which are widely known to reduce water yields. A 1.4% rate of increase of the run-off coefficient for each metre of increase of SNFW was observed. In addition, a decrease in the concentrations of total nitrogen, dissolved inorganic nitrogen (DIN), nitrate-N, and different sized fractions of particulate organic matter were found in streams draining these plantations as a function of increasing SNFW. Streamside buffer widths of 17-22 m for total nitrogen and DIN concentrations and ≥36 m for sediments were required to provide comparable values to reference watersheds (100% native forest). The findings from this study suggest that SNFW may significantly reduce adverse effects from exotic species forestry plantations on water provision in an area of south central Chile where exotic forest plantations are rapidly expanding.

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Suspended-sediment responses after strip thinning in headwater catchments

et al. 2016

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Suspended solid yield from forest harvesting on upland blanket peat

Abstract: 11Forest harvesting activities, if not carefully carried out, can disturb the forest soils and 12 can cause significant suspended solid concentration increases in receiving waters.

Cited by 17 publications

References 24 publications

Identifying the role of environmental drivers in organic carbon export from a forested peat catchment

Identifying the role of environmental drivers in organic carbon export from a forested peat catchment

Buffer effects of streamside native forests on water provision in watersheds dominated by exotic forest plantations

Suspended-sediment responses after strip thinning in headwater catchments

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