How does a biodiversity value impact upon optimal rotation length? An investigation using species richness and forest stand age

Saraev, Vadim; Valatin, Gregory; Peace, Andrew; Quine, Christopher P.

doi:10.1016/j.forpol.2019.05.013

Cited by 10 publications

(9 citation statements)

References 31 publications

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“…In interpreting this data, we need to be cognisant of the considerable data gaps around key ES (particularly cultural values and some additional regulation and maintenance ES). So whilst like earlier work carried out in the UK (Eftec, 2010;Europe Economics, 2017;Saraev et al, 2017;Willis et al, 2003) our study also shows there is a significant supply of ES and EV of ES benefits from forestry land use, we also demonstrate this is not always the case with some areas of forestry land use supplying EDS. Similarly like Pretty et al, (2000) our study demonstrates that upland agriculture in Wales is the source of EDS costs but it also supplies a significant level of ES supply and EV of ES benefits.…”

Section: Discussionsupporting

confidence: 63%

“…In this study ES were defined as as the flows of services and goods from ecosystems that provide benefits to humans (de Groot et al, 2010;Haines-Young and Potschin, 2010). As a development of earlier work generally and in Wales more specifically (Saraev et al, 2017) we also considered EDS. EDS are the result of functions and processes of ecosystems that lead to negative impacts on humans (Blanco et al, 2019 ;Dunn, 2010;Schaubroeck, 2017;Shackleton et al, 2016).…”

Section: Ecosystem Services Frameworkmentioning

confidence: 99%

“…As economic assessments of ES usually result in an aggregated EV they do not usually distinguish between different stakeholders or beneficiaries. Most existing studies aggregate the separate values of individual ES into a single figure cited as the total societal benefits derived from the particular study site (Eftec, 2010;Europe Economics, 2017;Saraev et al, 2017;Willis et al, 2003). This overlooks issues surrounding the distribution of benefits across the spectrum of different beneficiary groups (Hein et al, 2006).…”

Section: Imbalanced Distribution Of Benefits and Costs Across The Spectrum Of Beneficiary Groupsmentioning

confidence: 99%

“…What studies exist that evaluate land use and ES have focused a) predominantly on forest systems and b) principally on a single or a few services; notably timber production and its relation to carbon sequestration (Bateman and Lovett, 2000;Brainard et al, 2009), recreational use (Scarpa, 2003;Sen et al, 2011) and hydrological services (Willis, 2002). Other authors have made attempts at estimating the total value of the UK forest resource (Eftec, 2010;Europe Economics, 2017;Saraev et al, 2017;Willis et al, 2003). Notably, very little attention has been given to valuation of ES from agricultural systems, which is the dominant land use in the UK uplands.…”

Section: Introductionmentioning

confidence: 99%

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Integrated assessment, valuation and mapping of ecosystem services and dis-services from upland land use in Wales

2020

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Upland land use in Wales has high potential value in relation to the delivery of ecosystem services which is currently uncaptured. In this study we assessed the ecosystem services and dis-services generated by the two dominant land uses (forestry and agricultural) in the uplands of Wales in qualitative and monetary units. We also mapped the distribution of ecosystem services and dis-services across the two dominant land uses. Our results provide an initial baseline estimate of the supply and economic value of ecosystem services and dis-services from upland forestry and agricultural land use in Wales. The qualitative assessment showed the highest levels of ecosystem service supply were derived from forestry land use and the highest levels of ecosystem dis-services were derived from agricultural land use. The economic value of ecosystem service benefits from upland land use in Wales is £1,472.25 million year -1 and the total costs of ecosystem dis-services are £101.54 million year -1 using 2018 values. When an economic weighting is applied the per hectare economic value of ecosystem service benefits from agriculture at £1,434.02 ha -1 year -1 is higher than that of forestry at £1,261.09 ha -1 year -1 and the per hectare costs of ecosystem dis-services from agriculture at £96.10 ha -1 year -1 was marginally lower than that of forestry at £98.58 ha -1 year -1 . Overall our results highlight an imbalance in the current delivery of ecosystem services from upland land use in Wales with the majority of benefits coming in the form of private benefits through provisioning services. By using systematic qualitative and economic assessment tools this study has highlighted critical data gaps and provides a basis for rebalancing ecosystem service delivery and increasing levels of public benefits through expansion of tree cover within the Welsh uplands. Our mapping highlights where land use adaption and transformation may be approached to address the imbalance in ecosystem service supply.

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Section: Discussionsupporting

confidence: 63%

Section: Ecosystem Services Frameworkmentioning

confidence: 99%

Section: Imbalanced Distribution Of Benefits and Costs Across The Spectrum Of Beneficiary Groupsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integrated assessment, valuation and mapping of ecosystem services and dis-services from upland land use in Wales

2020

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“…Taiwanese forests are dominated by even-aged pure forests, such as Japanese Cedar (Cryptomeria japonica), Cedar (Cunninghamia lanceolata), Taiwan Acacia (Acacia confuse), Formosan Ash (Fraxinus griffithii), Camphor tree (Cinnamomum camphora), and Taiwan red pine (Pinus taiwanensis) in the early years. Since the 1940s, the reforestation policy has changed to select tree species suitable for the local environment (Chiu, 2010;Ekholm, 2016;Saraev et al, 2019). For example, Michelia compressa, C. camphora, and Calocedrus formosana were selected from northern Taiwan.…”

mentioning

confidence: 99%

Assessment of timber value and carbon credits provided by pure and mixed forests in Taiwan

Lin,

Liu

2023

Front. For. Glob. Change

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IntroductionClear-cutting an even-aged pure forest is a conventional forest operation for wood production. However, this type of operation is unsuitable for sustainable management with multiple disadvantages. By contrast, mixed forests are a forestation strategy that accommodates diversity. This study aims to assess and compare the timber value and carbon credits of a pure forest and a mixed forest, which is transformed from a pure forest. Two alternative options in managing plantations of pure forest (with Cryptomeria japonica) and mixed forest (with part of C. japonica cut and Cinnamomum camphora replanted) are evaluated considering both timber value and carbon credits. Scenarios with various harvesting intensities and carbon payments were also considered.MethodA theoretical model was applied, converting pure forest into mixed forest, then two species are cut or replanted in the second round. By contrast, in the pure forest situation, the setting for the second rotation period is a pure forest for 20 years. The model was applied in a simulation experiment and the study area is Taiwan. The selected tree species are representative and have been chosen for analysis.ResultsThis study showed that even-aged pure forests had higher wood sales and lower carbon payments than uneven-aged mixed forests. The net present value from market value would be from −255,403 NTD ha−1 to −74,134 NTD ha−1 and that from carbon value will be from 156,076 NTD ha−1 to 208,937 NTD ha−1.DiscussionThis study showed strategies by which values could be increased during the transition from an even-aged pure forest to a mixed forest. Feasible methods included reducing the costs of reforestation, management, and cutting while increasing carbon prices to increase profits from wood and carbon income. A higher harvesting intensity could contribute to greater production and increase the area available for planting, resulting in greater profits from wood and carbon income.

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Exploring the social and cultural values of trees and woodlands in England: A new composite measure

O'Brien,

McConnachie,

Hall

et al. 2024

People and Nature

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Existing research on the social and cultural (S&C) values of treescapes tends to be limited in scope, for example to recreation, aesthetic or health values, and much is primarily qualitative, which provides rich detail but does not lend itself easily to incorporation into decision‐making. Having a way to quantify the range of S&C values associated with treescapes is important if decision‐makers are to effectively take these into account. This issue is particularly important currently with ambitious plans to increase tree cover alongside growing threats to treescapes from climate change and tree pests and diseases. This paper outlines the development of a new composite measure to quantify the S&C values associated with treescapes. The development of the measure resulted in a set of 19 statements across six categories of S&C value. We present results from using the measure in a survey with a representative sample of 5000 people across England together with the results of a factor analysis, which suggests a way to simplify the measure into five statements. We examine the measure through the lens of relational values and suggest that a majority of the values in our measure are relational. Policy implications. The composite measure can be used by decision‐makers looking to develop their evidence base regarding the value of treescapes in their area, or for exploring the impact of tree pests and diseases. It has already been used by more than one local authority in England. While data collection was limited to England, we suggest that the measure is applicable across a wider range of countries. Read the free Plain Language Summary for this article on the Journal blog.

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How does a biodiversity value impact upon optimal rotation length? An investigation using species richness and forest stand age

Cited by 10 publications

References 31 publications

Integrated assessment, valuation and mapping of ecosystem services and dis-services from upland land use in Wales

Integrated assessment, valuation and mapping of ecosystem services and dis-services from upland land use in Wales

Assessment of timber value and carbon credits provided by pure and mixed forests in Taiwan

Exploring the social and cultural values of trees and woodlands in England: A new composite measure

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