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Bio-Economic Process-Based Modelling Methodology for Measuring and Evaluating the Ecosystem Services Provided by Agroforestry Systems.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Bio-Economic Process-Based Modelling Methodology for Measuring and Evaluating the Ecosystem Services Provided by Agroforestry Systems./
Author:	Crous-Duran, Josep.
Description:	1 online resource (232 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 84-05, Section: B.
Contained By:	Dissertations Abstracts International84-05B.
Subject:	Trees. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30167204click for full text (PQDT)
ISBN:	9798357524362

Bio-Economic Process-Based Modelling Methodology for Measuring and Evaluating the Ecosystem Services Provided by Agroforestry Systems.
Crous-Duran, Josep.

Bio-Economic Process-Based Modelling Methodology for Measuring and Evaluating the Ecosystem Services Provided by Agroforestry Systems. - 1 online resource (232 pages)

Source: Dissertations Abstracts International, Volume: 84-05, Section: B.

Thesis (Ph.D.)--Universidade de Lisboa (Portugal), 2022.

Includes bibliographical references

Agroforestry integrates woody vegetation with crop and/or animal production. This combination can benefit from ecological and economic interactions that allow better use of natural resources and improved economic performance. But despite financial support offered through policy, the implementation of new agroforestry systems has not been widespread in the European Union. This thesis aimed to develop additional scientific knowledge on the potential of agroforestry systems in terms of productivity and environmental benefits. The method consisted in improving a bio-physical process-based model (Yield-SAFE) and an integrated bio-economic model (Farm-SAFE) and using both to model four different agroforestry systems in different edaphoclimatic conditions in Europe. Four different agroforestry tree-densities were compared to no-tree and tree-only monoculture alternatives. The results showed that: 1) in terms of productivity, the inclusion of trees in agricultural land increases the overall accumulated energy but the accumulated energy per tree decreases as the tree density of trees increases; 2) agroforestry options present a greater capacity of reducing soil erosion, nitrate leaching and increases the carbon sequestration; 3) agroforestry systems can act as more sustainable methods of food production and 4) options without trees are more interesting financially but these option are also the most polluting. And even though the consideration of a monetary valuation of the environmental services offered, agroforestry options would just become more interesting if there is a change on how public financial help is allocated to the sector. The findings of this work reflect what has been previously seen in scientific literature, particularly in terms of the capacity of agroforestry systems to be more productive than monoculture systems, whilst at the same time providing environmental benefits. However, relatively low profitability means that they still fail to attract farmers, the main agents of agroforestry uptake and currently, arable and forestry tend to receive higher subsidies making these land uses more attractive to farmers but considering environmental benefits would make agroforestry a more interesting option.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798357524362Subjects--Topical Terms:

516384
Trees.
Index Terms--Genre/Form:

542853
Electronic books.

Bio-Economic Process-Based Modelling Methodology for Measuring and Evaluating the Ecosystem Services Provided by Agroforestry Systems.
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245 1 0 $a Bio-Economic Process-Based Modelling Methodology for Measuring and Evaluating the Ecosystem Services Provided by Agroforestry Systems.
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500 $a Source: Dissertations Abstracts International, Volume: 84-05, Section: B.
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502 $a Thesis (Ph.D.)--Universidade de Lisboa (Portugal), 2022.
504 $a Includes bibliographical references
520 $a Agroforestry integrates woody vegetation with crop and/or animal production. This combination can benefit from ecological and economic interactions that allow better use of natural resources and improved economic performance. But despite financial support offered through policy, the implementation of new agroforestry systems has not been widespread in the European Union. This thesis aimed to develop additional scientific knowledge on the potential of agroforestry systems in terms of productivity and environmental benefits. The method consisted in improving a bio-physical process-based model (Yield-SAFE) and an integrated bio-economic model (Farm-SAFE) and using both to model four different agroforestry systems in different edaphoclimatic conditions in Europe. Four different agroforestry tree-densities were compared to no-tree and tree-only monoculture alternatives. The results showed that: 1) in terms of productivity, the inclusion of trees in agricultural land increases the overall accumulated energy but the accumulated energy per tree decreases as the tree density of trees increases; 2) agroforestry options present a greater capacity of reducing soil erosion, nitrate leaching and increases the carbon sequestration; 3) agroforestry systems can act as more sustainable methods of food production and 4) options without trees are more interesting financially but these option are also the most polluting. And even though the consideration of a monetary valuation of the environmental services offered, agroforestry options would just become more interesting if there is a change on how public financial help is allocated to the sector. The findings of this work reflect what has been previously seen in scientific literature, particularly in terms of the capacity of agroforestry systems to be more productive than monoculture systems, whilst at the same time providing environmental benefits. However, relatively low profitability means that they still fail to attract farmers, the main agents of agroforestry uptake and currently, arable and forestry tend to receive higher subsidies making these land uses more attractive to farmers but considering environmental benefits would make agroforestry a more interesting option.
520 $a Os sistemas agroflorestais integram vegetacao lenhosa, producao agricola e/ou 260 producao agropecuaria. Esta combinacao se beneficia de interacoes ecologicas e 261 economicas que permitem que os diversos elementos usem melhor os recursos 262 naturais disponiveis. Apesar do apoio financeiro oferecido pela Uniao Europeia na 263 instalacao deste tipo de sistema nao tem sido bem-sucedida na. O presente trabalho 264 tem como objetivo principal, seguindo uma abordagem de modelacao biofisica e bio 265 economica, fornecer respostas para questoes relacionadas com as potencialidades 266 dos sistemas agroflorestais em termos de produtividade, beneficios ambientais e 267 viabilidade financeira e economica. A metodologia usa um modelo biofisico de base 268 processual (Yield-SAFE) com um modelo bio economico compativel (Farm-SAFE) e e 269 aplicado em quatro sistemas agroflorestais na Europa. Quatro diferentes densidades 270 crescentes de arvores foram comparadas as suas principais alternativas de cultivo 271 (sem arvores) e floresta (apenas arvores). Os resultados mostram que: 1) em termos 272 de produtividade a inclusao de arvores em terras agricolas aumenta a energia total 273 acumulada mas a energia acumulada por arvore reduz-se a medida que a densidade 274 de arvores aumenta; 2) existe uma maior capacidade dos sistemas de reduzir o solo 275 erodido, o lixiviamento de nitratos e aumenta a capacidade dos sistemas de 276 armazenar carbono; 3) os sistemas agroflorestais podem atuar como metodos mas 277 sustentaveis de producao e 4) financeiramente as opcoes sem arvores sao mais 278 interessantes mas tambem as mais poluentes. Contudo considerando a valorizacao 279 monetaria atual das externalidades as opcoes agroflorestais so seriam mais 280 interessantesse houvesse uma mudanca na distribuicao das ajudas publicas atribuidas 281 ao sector. Todos estes resultados sao semelhantes aos observados na literatura 282 cientifica. Atualmente, a agricultura e altamente subsidiada, no entanto, entrar a 283 considerar alguns fatores como os beneficios ambientais poderiam melhorar o 284 interesse financeiro e economico dos sistemas agroflorestais.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Trees. $3 516384
650 4 $a Agriculture. $3 518588
650 4 $a Carbon sequestration. $3 601998
650 4 $a Soil erosion. $3 602940
650 4 $a Environmental engineering. $3 548583
650 4 $a Soil sciences. $3 2122699
650 4 $a Wood sciences. $3 3168288
655 7 $a Electronic books. $2 lcsh $3 542853
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710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Universidade de Lisboa (Portugal). $3 3432411
773 0 $t Dissertations Abstracts International $g 84-05B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30167204 $z click for full text (PQDT)