Système d'information stratégique et agriculture (serveur d'exploration)

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Exploratory land use studies and their role in strategic policy making

Identifieur interne : 000C01 ( Istex/Corpus ); précédent : 000C00; suivant : 000C02

Exploratory land use studies and their role in strategic policy making

Auteurs : M. K. Van Ittersum ; R. Rabbinge ; H. C. Van Latesteijn

Source :

RBID : ISTEX:EC7DC2FAB32D27210722A37AF074A855B2D804FD

Abstract

To support the different phases of a policy making process aimed at changing land use, distinct types of land use studies are required. This paper focuses on exploratory land use studies and their role in the phase of formulating strategic policy objectives. Exploratory land use studies contribute to a transparent discussion on policy objectives by showing ultimate technical possibilities and consequences of imposing different priorities to agro-technical, food security, socio-economic and environmental objectives. A methodology is presented in which science-driven technical information is confronted with value-driven objectives under given values of exogenous variables (e.g. regarding population growth and requirements for agricultural produce). Land use scenarios are generated showing consequences of different priorities for objectives by using natural resources and technical possibilities in different ways. Applications of such an approach are given for the global, regional and farm level, each addressing specific questions and target groups. The paper focuses on the type of results these studies produce and their role in the societal and political debate on strategic land use policy and planning. It is concluded that if exploratory land use studies are carried out in true interaction with target groups, they may well contribute to the debate and learning on sustainable land use options and a purposeful identification of effective policy instruments in a next phase of the policy making process.

Url:
DOI: 10.1016/S0308-521X(98)00033-X

Links to Exploration step

ISTEX:EC7DC2FAB32D27210722A37AF074A855B2D804FD

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<note type="content">Fig. 1: Typology of future research. If uncertainty in the system and model is apparent, `what-if' type questions can be addressed. If uncertainties are small the probability of future events can be assessed. If causality of the model is prominent, more systematic future research is possible. If causality is lacking, only regressive or deductive methods are available leading to projections or speculations of future events (Becker and Dewulf, 1989).</note>
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<note type="content">Fig. 4: Ratio of potential supply over estimated requirements of food, by region, and global total in three scenarios. The scenarios are defined by (1) the type of agricultural production (GOA, Globally-Oriented Agriculture; LOA, Locally-Oriented Agriculture—see text), (2) the type of diet and (3) projected population sizes for 2040. From: Penning de Vries et al. (1995).</note>
<note type="content">Table 1: Typical yields of crops and permanent grassland (in GEa, t ha−1 yr−1) in temperate and tropical zones for the GOAa and LOAa production systems in Tropics, up to Three Crops per Year are Grown. From: Penning de Vries et al. (1995).</note>
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<note type="content">Table 3: Four land use scenarios for the EU, in terms of objective values and in terms of type of agriculture</note>
<note type="content">Table 4: Values of economic and environmental objectives for flower bulb farms at the optimization of each objective without restrictions on the others</note>
<note type="content">Table 5: Trade-offs between economic and environmental objectives for flower bulb farms, when reducing pesticide input (A–B–C–D)a and nitrogen surplus (A–E–F–G)a</note>
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<ce:simple-para>To support the different phases of a policy making process aimed at changing land use, distinct types of land use studies are required. This paper focuses on exploratory land use studies and their role in the phase of formulating strategic policy objectives. Exploratory land use studies contribute to a transparent discussion on policy objectives by showing ultimate technical possibilities and consequences of imposing different priorities to agro-technical, food security, socio-economic and environmental objectives. A methodology is presented in which science-driven technical information is confronted with value-driven objectives under given values of exogenous variables (e.g. regarding population growth and requirements for agricultural produce). Land use scenarios are generated showing consequences of different priorities for objectives by using natural resources and technical possibilities in different ways. Applications of such an approach are given for the global, regional and farm level, each addressing specific questions and target groups. The paper focuses on the type of results these studies produce and their role in the societal and political debate on strategic land use policy and planning. It is concluded that if exploratory land use studies are carried out in true interaction with target groups, they may well contribute to the debate and learning on sustainable land use options and a purposeful identification of effective policy instruments in a next phase of the policy making process.</ce:simple-para>
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<abstract lang="en">To support the different phases of a policy making process aimed at changing land use, distinct types of land use studies are required. This paper focuses on exploratory land use studies and their role in the phase of formulating strategic policy objectives. Exploratory land use studies contribute to a transparent discussion on policy objectives by showing ultimate technical possibilities and consequences of imposing different priorities to agro-technical, food security, socio-economic and environmental objectives. A methodology is presented in which science-driven technical information is confronted with value-driven objectives under given values of exogenous variables (e.g. regarding population growth and requirements for agricultural produce). Land use scenarios are generated showing consequences of different priorities for objectives by using natural resources and technical possibilities in different ways. Applications of such an approach are given for the global, regional and farm level, each addressing specific questions and target groups. The paper focuses on the type of results these studies produce and their role in the societal and political debate on strategic land use policy and planning. It is concluded that if exploratory land use studies are carried out in true interaction with target groups, they may well contribute to the debate and learning on sustainable land use options and a purposeful identification of effective policy instruments in a next phase of the policy making process.</abstract>
<note type="content">Fig. 1: Typology of future research. If uncertainty in the system and model is apparent, `what-if' type questions can be addressed. If uncertainties are small the probability of future events can be assessed. If causality of the model is prominent, more systematic future research is possible. If causality is lacking, only regressive or deductive methods are available leading to projections or speculations of future events (Becker and Dewulf, 1989).</note>
<note type="content">Fig. 2: Methodology for exploratory land use studies.</note>
<note type="content">Fig. 3: Production levels and associated growth factors in various physical environments. From: Van Ittersum and Rabbinge (1997).</note>
<note type="content">Fig. 4: Ratio of potential supply over estimated requirements of food, by region, and global total in three scenarios. The scenarios are defined by (1) the type of agricultural production (GOA, Globally-Oriented Agriculture; LOA, Locally-Oriented Agriculture—see text), (2) the type of diet and (3) projected population sizes for 2040. From: Penning de Vries et al. (1995).</note>
<note type="content">Table 1: Typical yields of crops and permanent grassland (in GEa, t ha−1 yr−1) in temperate and tropical zones for the GOAa and LOAa production systems in Tropics, up to Three Crops per Year are Grown. From: Penning de Vries et al. (1995).</note>
<note type="content">Table 2: Objectives and scenarios included in the EU study (WRR 1992, Rabbinge et al. 1994)</note>
<note type="content">Table 3: Four land use scenarios for the EU, in terms of objective values and in terms of type of agriculture</note>
<note type="content">Table 4: Values of economic and environmental objectives for flower bulb farms at the optimization of each objective without restrictions on the others</note>
<note type="content">Table 5: Trade-offs between economic and environmental objectives for flower bulb farms, when reducing pesticide input (A–B–C–D)a and nitrogen surplus (A–E–F–G)a</note>
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<dateIssued encoding="w3cdtf">199811</dateIssued>
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<identifier type="ISSN">0308-521X</identifier>
<identifier type="PII">S0308-521X(00)X0045-5</identifier>
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<date>199811</date>
<detail type="volume">
<number>58</number>
<caption>vol.</caption>
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<identifier type="DOI">10.1016/S0308-521X(98)00033-X</identifier>
<identifier type="PII">S0308-521X(98)00033-X</identifier>
<accessCondition type="use and reproduction" contentType="copyright">©1998 Elsevier Science Ltd</accessCondition>
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<recordOrigin>Elsevier Science Ltd, ©1998</recordOrigin>
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