Suchergebnisse

Publicado en el número 729 (2008) de 'Arbor: Ciencia, Pensamiento, Cultura', bajo el título monográfico: "Cualificar el espacio: transiciones ambientales para el nuevo milenio". ; [EN] The objective of this paper is to show the measurement of the environmental income from two private Spanish forests, the Cork Oak Woodlands of the Alcornocales Natural Park (Cádiz and Málaga) and the Scotch Pine Forest of the Sierra de Guadarrama (Madrid and Segovia). We also contribute to the technical and political debate on governmental regulations of forest environmental accounting in European Union. We have measured the environmental goods and services consumed by private landowners and public visitors through the contingent valuation technique. We have estimated the value of mushrooms gathering by public visitors in the Scotch Pine Forests of the Sierra de Guadarrama taking the price and harvest from the mushroom market in Pinar Grande (Soria). The value for carbon estimated accounts for the avoided damage of the greenhouse effect mitigation due to the sequestration of the atmospheric carbon dioxide. The environmental valuations show that the private environmental profitability rates in the Alcornocales Natural Park and in the Sierra de Guadarrama are 2.13 % and 3.43 %, in relation to their corresponding land market prices. We have estimated that the total net values added are 1.63 and 3.28 times higher than its corresponding conventional net values added in the Alcornocales Natural Park and in the Sierra de Guadarrama. ; [ES] El objetivo de este artículo es presentar una medición de la renta ambiental en dos tipos de bosques privados representativos españoles, como son los alcornocales del Parque Natural Los Alcornocales (Cádiz y Málaga) y los pinares de silvestre de la Sierra de Guadarrama (Madrid y Segovia). Con este objetivo también se pretende contribuir a los debates técnico y político sobre la necesidad de que los gobiernos regulen la aplicación de las cuentas ambientales integradas de los bosques europeos. La medición de los bienes y servicios ambientales del bosque consumidos por los propietarios privados y los visitantes públicos se ha realizado aplicando la técnica de valoración contingente. El valor de las setas recogidas por el público en los pinares de la Sierra de Guadarrama ha sido estimado aceptando los datos de precio y rendimiento del mercado de setas en Pinar Grande (Soria). La estimación del valor del carbono refleja el valor del daño evitado de la mitigación del efecto invernadero de la reducción del dióxido de carbono atmosférico. Las valoraciones ambientales muestran que las tasas de rentabilidad ambientales privadas del Parque Natural Los Alcornocales y de los pinares de la Sierra de Guadarrama alcanzan el 2,13 % y el 3,43 %, con relación a sus precios de mercado de la tierra. Se ha estimado que los valores añadidos totales superan en 1,63 y 3,28 veces a sus valores añadidos convencionales respectivos en el Parque Natural Los Alcornocales y en los pinares de la Sierra de Guadarrama. ; Peer reviewed

A major problem faced by government as trustee of society charged with conserving the nation's forest environmental asset is that the standard Economic Account for Forestry (EAF) fails to measure the contribution of nature to total forest incomes and environmental assets. In the context of this government mission, the debate arises with regard to how to uncover the contribution of nature to the total forest incomes enjoyed by people through a refined accounting framework which extends the EAF. The latter is applied by the statistics office to estimate the values added of timber, firewood, cork, resin, industrial nut and other non-woody final products of the forest at national/sub-national scale. Bearing in mind this narrow scope of the EAF, this research proposes the application of the experimental Agroforestry Accounting System (AAS), which extends the forest incomes and environmental asset estimates by applying simulated exchange values stated/revealed by consumers for non-market public goods and services. We apply the EAF and AAS frameworks to 12 large publicly-owned protected conifer forest farms which are not available for sale on the competitive land market and which cover an area of 47,262 ha in Andalusia-Spain. In this conifer farm case study, the EAF considers the economic activities of timber, firewood, aromatic plants and residential service. The AAS adds to the EAF activities those of grazing, conservation forestry, hunting, livestock, agricultural crops, livestock-keeper private amenity, fire services, free access recreation, mushrooms, carbon, landscape conservation, threatened wild biodiversity and water supply runoff stored lower down the watershed in public reservoirs. The objectives of this conifer farm case study are, first, to compare the final products and incomes estimated by applying the EAF and AAS frameworks and, second, to measure the sensitivity of conifer farm environmental assets to changes in land ownership rights and discounting rates in accordance with the AAS results. The conifer farm results show total income measured by the AAS is 38 times higher than the EAF net value added (NVA) for the 2010 period. The AAS economic activities of forestry conservation, fire services and landscape conservation activities generate 71% of the conifer farm labour compensation. The AAS opening environmental asset measured at the assumed competitive real baseline discounting rate of 3% is 6371.6 €/ha, which is 3.7 times lower than it would be if the conifer farm was available for sale on the competitive land market. The change in the baseline discounting rate chosen, from 3% to 1.5%, would lead to an increase of 116% in the value of the opening environmental asset. The above results reveal the inconsistent EAF measurement of total conifer farm incomes. The sensitivity analysis underlines the important effects on the environmental asset arising from changes in land ownership rights and discounting rates. ; This research has received financial support from the RECAMAN (Grant number: Contract NET 165602), VAMSIL (Grant number: ref. 201810E036) and MAIA projects (Grant number: 817527).

Peer reviewed ; The scientific debate on how to make visible the linkages between the standard System of National Accounts (SNA) and its ongoing satellite System of Environmental Economic Accounting-Experimental Ecosystem Accounting (SEEA-EEA) is a challenge which is still pending. In previous publications we measured selected ecosystem accounting variables associated with Mediterranean forests and woodlands at market prices and simulated exchange prices in terms of ordinary net value added (NVA), ecosystem services (ES), environmental asset (EA), changes in environmental asset (CEA) and environmental income (EI) based on the experimental Agroforestry Accounting System (AAS). In this study, we applied 'own refined SNA' (rSNA) and SEEA-EEA (rSEEA-EEA) and a simplified AAS (sAAS) to measure the aforementioned environmental variables at basic and social prices for 15 economic activities considered in 1,408 thousand hectares of the predominantly mixed Holm oak open woodlands (HOW) in Andalusia-Spain. We incorporate the government institutional sector and environmental income in the rSNA and rSEEA-EEA. The government is perceived as the collective owner of public economic activities. Our objectives are to measure and discuss consistencies in total environmental incomes accruing from the results of the ecosystem accounting frameworks applied to HOW. The discrepancies in government institutional sector ecosystem services between rSEEA-EEA and sAAS are due to the omission in the former ecosystem accounting approach of the public farmer voluntary opportunity cost and government manufactured costs incurred in the supply of public final products enjoyed free by the consumers. The most relevant findings of this study are, firstly, that the EI of individual products for the period valued at social prices corresponds with the sustainable economic ecosystem services (except for private amenity), and according to the HOW scheduled modeling of future resource management, the EI also shows physical sustainability of individual ...

The standard System of National Accounts (SNA) omits the costs of the environmental inputs from nature and the environmental fixed asset degradation from the national/sub-national natural working landscapes. The United Nations Statistic Division (UNSD) is currently drafting the standardization of the Experimental Ecosystem Accounting (EEA), as part of the System of Environmental-Economic Accounting (SEEA). The EEA- aims to mitigate some of the limitations of the SNA by extending the concept of economic activity and explicitly incorporating ecosystem services and environmental assets provided by nature in the estimates of net value added, adjusted according to the costs of the environmental inputs consumed and the environmental fixed asset degradations of ecosystem. However, the NVAad proposed in the ongoing draft of the EEA is inconsistent in that it omits the manufactured costs of the public economic activities of the new government institutional sub-sector of the ecosystem trustee. In addition, the ongoing methodological guidelines of the EEA do not propose to estimate the environmental income. This implies that there is not a single indicator that integrates the ecosystem services obtained and the evolution of the environmental assets in the natural working landscapes in which the private and public activities are valued. The objective of this research is to discuss conceptually and compare the measurements of ecosystem services and environmental incomes in the extended Agroforestry Accounting System (AAS), and in refined versions of the official SNA and the ongoing EEA methodologies, through a case study of privately-owned holm oak dehesas working landscapes in Andalusia-Spain. This comparison shows that the refined SNA and the refined EEA in their current state of development do not allow the complete visualization of the environmental income contribution to the total income of the natural working landscapes. We also discuss the advances provided by the AAS extended accounting methodology that would be relevant for the EEA next improvements. ; The authors thank the Agency for Water and Environment of the Regional Government of Andalusia for the financial and field work support for the REnta y CApital de los Montes de ANdalucía (RECAMAN) project (Contract NET 165602), the Valoraciones de servicios y activos de AMenidades privadas de fincas SILvopastorales (VAMSIL) project of CSIC (ref.: 201810E036) and the Mapping and Assessment for Integrated ecosystem Accounting (MAIA) project of EU call H2020-SC5-2018-1 (Grant Agreement Nr. 817527). ; Peer reviewed

22 Pags.- 3 Tabls.- 5 Figs. This open access article is distributed under the terms of the CC-BY-NC-ND license and is freely available online at: http://le.uwpress.org. ; The authors thank the Regional Government of Andalusia and the Agency for Water and Environment in Andalusia for their financial and field work support for the project Total social income and capital of Andalusian Forest (RECAMAN, contract NET165602). Paola Ovando acknowledges the support of the European Commission under the Marie Curie Intra-European Fellowship Programme (PIEF2013621940) ; Peer reviewed