scholarly journals THE CRITICAL ROLE OF CONVERSION COST AND COMPARATIVE ADVANTAGE IN MODELING AGRICULTURAL LAND USE CHANGE

2020 ◽  
Vol 11 (01) ◽  
pp. 2050004 ◽  
Author(s):  
XIN ZHAO ◽  
KATHERINE V. CALVIN ◽  
MARSHALL A. WISE
Keyword(s):  
Land Use ◽  
Comparative Advantage ◽  
Agricultural Land ◽  
Critical Role ◽  
Hybrid Approach ◽  
Climate Impacts ◽  
Future Climate ◽  
Constant Elasticity ◽  
Land Use Modeling ◽  
Modeling Approaches

The difference in land use modeling approaches is an important uncertain factor in evaluating future climate scenarios in global economic models. We compare five widely used land use modeling approaches: constrained optimization, constant elasticity of transformation (CET), the additive form of constant elasticity of transformation (ACET), logit, and Ricardian. We demonstrate that the approaches differ not only by the extent of parameter uses but also by the definition of conversion cost and the consideration of comparative advantage implied by land heterogeneity. We develop a generalized hybrid approach that incorporates ACET/logit and Ricardian to account for both conversion cost and comparative advantage. We use this hybrid approach to estimate future climate impacts on agriculture. We find a welfare loss of about 0.38–0.46% of the global GDP. We demonstrate that ignoring land heterogeneity or land conversion costs underestimates climate impacts on agricultural production and welfare.

scholarly journals Germany’s Agricultural Land Footprint and the Impact of Import Pattern Allocation

2021 ◽  
Author(s):  
Klaus Josef Hennenberg ◽  
Swantje Gebhardt ◽  
Florian Wimmer ◽  
Martin Distelkamp ◽  
Christian Lutz ◽  
...  
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Methodological Approach ◽  
Hybrid Approach ◽  
Ecosystem Functions ◽  
Land Conversion ◽  
Environmental Goods ◽  
Global Average ◽  
The Impact

Footprints are powerful indicators for evaluating the impact of the bioeconomy of a country on environmental goods, domestically and abroad. In this study, we apply a hybrid approach combining a Multi-Regional Input-Output model and land use modelling to compute the agricultural land footprint (aLF). Furthermore, we added information on land-use change to the analysis and allocated land conversion to specific commodities. The German case study shows that the aLF abroad is larger by a factor of 2.5 to 3 than the aLF in Germany. In 2005 and 2010, conversion of natural and semi-natural land-cover types abroad allocated to Germany due to import increases was 2.5 times higher than the global average. Import increases to Germany slowed down in 2015 and 2020, reducing land conversion attributed to the German bioeconomy to the global average. The case study shows that the applied land footprint provides clear and meaningful information for policymakers and other stakeholders. The presented methodological approach can be applied to other countries and regions covered in the underlying database EXIOBASE. It can be adapted, also for an assessment of other ecosystem functions, such as water or soil fertility.

scholarly journals Land use and land cover changes in the Lower Neretva Region from 1990 to 2020

2021 ◽  
Vol 83 (2) ◽  
pp. 7-31
Author(s):  
Josip Šetka ◽  
◽  
Petra Radeljak Kaufmann ◽  
Luka Valožić ◽  
◽  
...  
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Agricultural Land ◽  
Confusion Matrix ◽  
Hybrid Approach ◽  
Land Cover Changes ◽  
Landsat 8 ◽  
Economic Changes ◽  
Sparse Vegetation ◽  
Landsat 7

Changes in land use and land cover are the result of complex interactions between humans and their environment. This study examines land use and land cover changes in the Lower Neretva Region between 1990 and 2020. Political and economic changes in the early 1990s resulted in changes in the landscape, both directly and indirectly. Multispectral image processing was used to create thematic maps of land use and land cover for 1990, 2005, and 2020. Satellite images from Landsat 5, Landsat 7 and Landsat 8 were the main source of data. Land use and land cover structure was assessed using a hybrid approach, combining unsupervised and manual (visual) classification methods. An assessment of classification accuracy was carried out using a confusion matrix and kappa coefficient. According to the results of the study, the percentage of built-up areas increased by almost 33%. Agricultural land and forests and grasslands also increased, while the proportion of swamps and sparse vegetation areas decreased.

scholarly journals Socio-economic consequences of land reform in Ukraine

2020 ◽  
Vol 11 (4) ◽  
Author(s):  
O. Zhylin ◽  
Keyword(s):  
Land Use ◽  
Land Reform ◽  
Agricultural Land ◽  
Critical Role ◽  
Legal Framework ◽  
Practical Aspect ◽  
Economic Consequences ◽  
Real Economy ◽  
Environmental Consequences ◽  
Legal Forms

The article examines theoretical foundations of socio-economic consequences of land reform in Ukraine. Prospects and possibilities for opening of the market of agricultural land in Ukraine through foreign experience in land reform are analyzed. It is determined that threre are a lot of agricultural enterprises, which use agricultural land mainly for maximum self-enrichment, while neglecting norms of rational land use. It is determined that attracted capital will be played the critical role in the process of agrarian reform, which within the legal framework of the mechanism of circulation of agricultural land will be used by all participants, namely the state and owners / sellers with buyers / tenants. The effectiveness of implementation and functioning of the land market will be carried out on the basis of the established scientific base, the operating activity of state bodies and taking into account the interests of market participants. The level of centralization and decentralization of land potential management is taken significant value in foreign countries, representative bodies of territorial communities have specific powers for land use, organizational and legal forms of land use and forms of ownership of land resources are exceptional. It is determined that results of land reform are assessed by identifying the social, economic and environmental consequences, which are considered in physical and qualitative terms. The consequences of land reform are manifested in real economy and have the long-term impact not only on it but also on life of society in general. Totally, this will concern not only the regulatory implementation of the rules for organizing of the market of agricultural land, but also the practical aspect of ensuring the implementation of land reform.

scholarly journals Climate impacts on agricultural land use in the USA: the role of socio-economic scenarios

2017 ◽  
Vol 144 (2) ◽  
pp. 329-345 ◽  
Author(s):  
Jianhong E. Mu ◽  
Benjamin M. Sleeter ◽  
John T. Abatzoglou ◽  
John M. Antle
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Climate Impacts ◽  
Agricultural Land Use ◽  
The Usa

INTEGRATION OF GENERAL AND PARTIAL EQUILIBRIUM AGRICULTURAL LAND-USE TRANSFORMATION FOR THE ANALYSIS OF CLIMATE CHANGE IN THE MEDITERRANEAN

2011 ◽  
Vol 02 (04) ◽  
pp. 275-299 ◽  
Author(s):  
RUSLANA R. PALATNIK ◽  
FABIO EBOLI ◽  
ANDREA GHERMANDI ◽  
IDDO KAN ◽  
MICKEY RAPAPORT-ROM ◽  
...  
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Equilibrium Model ◽  
Agricultural Production ◽  
Climate Impacts ◽  
Partial Equilibrium ◽  
Land Allocation ◽  
Constant Elasticity ◽  
The Mediterranean ◽  
Value Model

This study presents an internal modification of a dynamic computable general equilibrium model, ICES, employing inputs from a partial equilibrium model for the agricultural sector, VALUE. The aim is to quantify and analyze the medium-term socio-economic consequences of projected climate change. The methodology is innovative as it combines state-of-the-art knowledge from economic and biophysical sources and is demonstrated in application to two Mediterrenean countries: Israel and Italy. The information from the VALUE model was incorporated into the ICES economic model to improve the agricultural production structure. The new land allocation method takes into account the variation of substitutability across different types of land use. It captures agronomic features included in the VALUE model. This modification gives a better representation of heterogeneous information of land productivity to the economic framework. Climate impacts and policy evaluation with ICES are reinforced due to the more refined system of land allocation. This exercise is original in its ability to base the analysis on empirically estimated parameters rather than on assumptions, as in other studies of this kind. Notably, we suggest diverse land Constant Elasticity of Transformation (CET) frontiers for two main ecological regions in the Mediterranean basin for a more accurate representation of agronomic characteristics. Using the modified ICES model we evaluate climate change impact on agricultural production in the Mediterranean region.

scholarly journals Germany’s Agricultural Land Footprint and the Impact of Import Pattern Allocation

2021 ◽  
Vol 14 (1) ◽  
pp. 105
Author(s):  
Klaus Josef Hennenberg ◽  
Swantje Gebhardt ◽  
Florian Wimmer ◽  
Martin Distelkamp ◽  
Christian Lutz ◽  
...  
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Temporal Dynamics ◽  
Hybrid Approach ◽  
Land Conversion ◽  
Environmental Goods ◽  
Conversion Rates ◽  
Land Use Modelling ◽  
The Impact

Footprints are powerful indicators for evaluating the impacts of a country’s bioeconomy on environmental goods, both domestic and abroad. We apply a hybrid approach combining a multi-regional input-output model and land use modelling to compute the agricultural land footprint (aLF). Furthermore, we added information on land-use change to the analysis and allocated land conversion to specific commodities. Using Germany as a case study, we show that the aLF abroad is 2.5 to 3 times larger compared to impacts within the country. When allocating land conversion of natural and semi-natural land-cover types in 2005 and 2010 to import increases by Germany, conversion rates were found to be 2.5 times higher than for the global average. Import increases to Germany slowed down in 2015 and 2020, reducing land conversion attributed to the German bioeconomy as well. Our results indicate that looking at a static import pattern is not sufficient to draw a realistic picture of the land footprint of a country. For a more detailed assessment that also considers temporal dynamics and impacts of biomass use and trade, our newly developed set of indicators also captures changes of import patterns over time. The case study shows that our enhanced land footprint provides clear and meaningful information for policymakers and other stakeholders.

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