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1.
Brazil confirmed targets for reducing greenhouse gas emissions in 2008, including an 80% reduction in deforestation in the Amazon by 2020. With this in mind, we investigated the trade-off between environmental conservation and economic growth in the Amazon. The aim of this study is to project the economic losses and land-use changes resulting from a policy to control deforestation and the rise in land productivity that is necessary to offset those losses. We developed a Dynamic Interregional Computable General Equilibrium Model for 30 Amazon regions with a land module allowing conversion between types of land. The results have shown that the most affected regions would be soybeans and cattle producers as well as regions dominated by family farms. To offset these impacts, it was estimated that an annual gain of land productivity of approximately 1.4% would be required.  相似文献   

2.
We propose a causal analysis framework to increase understanding of land-use change (LUC) and the reliability of LUC models. This health-sciences-inspired framework can be applied to determine probable causes of LUC in the context of bioenergy. Calculations of net greenhouse gas (GHG) emissions for LUC associated with biofuel production are critical in determining whether a fuel qualifies as a biofuel or advanced biofuel category under regional (EU), national (US, UK), and state (California) regulations. Biofuel policymakers and scientists continue to discuss to what extent presumed indirect land-use change (ILUC) estimates should be included in GHG accounting for biofuel pathways. Current estimates of ILUC for bioenergy rely largely on economic simulation models that focus on causal pathways involving global commodity trade and use coarse land-cover data with simple land classification systems. This paper challenges the application of such models to estimate global areas of LUC in the absence of causal analysis. The proposed causal analysis framework begins with a definition of the change that has occurred and proceeds to a strength-of-evidence approach that includes plausibility of relationship, completeness of causal pathway, spatial co-occurrence, time order, analogous agents, simulation model results, and quantitative agent–response relationships. We discuss how LUC may be allocated among probable causes for policy purposes and how the application of the framework has the potential to increase the validity of LUC models and resolve controversies about ILUC, such as deforestation, and biofuels.  相似文献   

3.
The dairy industry is receiving considerable attention in relation to both its significant greenhouse gas (GHG) emissions, and its potential for reducing those emissions, contributing towards meeting national targets and driving the industry towards sustainable intensification. However, the extent to which improvements can be made is dependent on the decision-making processes of individual producers, so there has been a proliferation of carbon accounting tools seeking to influence those processes. This paper evaluates the suitability of such tools for driving environmental change by influencing on-farm management decisions. Seven tools suitable for the European dairy industry were identified, their characteristics evaluated, and used to process data relating to six scenario farms, emulating processes undertaken in real farm management situations. As a result of the range of approaches taken by the tools, there was limited agreement between them as to GHG emissions magnitude, and no consistent pattern as to which tools resulted in the highest/lowest results. Despite this it is argued, that as there was agreement as to the farm activities responsible for the greatest emissions, the more complex tools were still capable of performing a ‘decision support’ role, and guiding management decisions, whilst others could merely focus attention on key issues.  相似文献   

4.
This study provides a brief evaluation of the relationship between trends in transport emissions and urban land-use by analysing correlation between transport CO2 emissions data, GDP and population data with land-use change data from the CORINE database for EU Member States between 1990 and 2000.  相似文献   

5.
Increased demand for both agricultural production and forest restoration may lead to increased competition for land in the next decades. Sustainably increasing cattle ranching productivity is a potential solution to reconcile different land uses, while also improving biodiversity conservation and the provision of ecosystem services. If not strategically implemented in integration with complementary policies, sustainable intensification can however result in negative environmental, economic and social effects. We analyzed the potential for sustainable intensification as a solution for a conflict between agricultural expansion and forest restoration in the Paraitinga Watershed at the Brazilian Atlantic Forest, a global biodiversity hotspot. In addition, we provide policy recommendations for sustainable development in the region, based on interviews with producers and local actors. We found that the Paraitinga Watershed has the potential to increase its cattle-ranching productivity and, as a result, relinquish spared land for other uses. This was true even in the most conservative intensification scenario considered (50% of the maximum potential productivity reached), in which 76,702 ha of pastures can be spared for other uses (46% of total pasture area). We found that restoration, apiculture and rural tourism are promising activities to promote sustainable development in the region, thus potentially increasing food production and mitigating competition for land. Our study shows that results from socioeconomic interviews and biophysical modelling of potential productivity increases offer robust insights into practical solutions on how to pursue sustainable development in one of the world’s most threatened biodiversity hotspots.  相似文献   

6.
Although the adaptation strategies of smallholder farmers to climate change and its attendant hazards have attracted widespread attention, the quantitative detection and evaluation of their adaptive behaviors remains a difficult task that deserves further study. This article describes an empirical case study performed in southern China to examine the adaptation strategies of paddy farmers to agricultural drought. We collected first-hand data through household questionnaires, in-depth interviews with local managers, and farm-level land-use surveys. The effectiveness of the adaptation approaches of the farmers was assessed in terms of the ecological, economic, and social benefits. Our findings indicate that over the past three decades, when confronted with recurrent seasonal drought in a warming climate, farmers have gradually abandoned the double-cropping rice production and transformed their cropping patterns into a new diversified mode of “Rice-Cole, rice, cotton, seedling nursery, and coarse cereals”. Current farming practice reduces the vulnerability of local agriculture to drought, and allows farmers to diversify and improve their incomes, which contributes to enhanced resilience and adaptability to drought. However, the autonomous adaptation of farmers may primarily serve their interests of minimizing drought risk and maximizing economic profits but could also undermine the social benefits, such as regional grain security. A robust adaptation strategy should balance the ecological and economic benefits with social interests to maintain agricultural sustainability.  相似文献   

7.
To a large extent, tourism development triggers an economic boost in certain regions. However, given its complex and dynamic forms of land use, tourism development also causes changes to land-use demands and patterns in tourist regions, which directly and indirectly interfere with local environments. The development of tourist regions must achieve a series of trade-offs to meet sustainability goals. This paper discusses the effects of tourism on land-use change and how land regulation policies integrate tourism development with land use. We employed a system dynamic-cellular automata hybrid model using the Lijiang River Basin as an example to translate tourism-affected land dynamics into spatial distributions and project their likely future changes under various development scenarios. We determined three major outcomes. (1) Tourism development causes a quantitatively increasing demand for construction land. With effective spatial regulations, the expansion of construction land does not necessarily suggest the loss of eco-land; rather, land-use pressures accordingly shift to cropland. Under these circumstances, land regulation policies help to balance land demand and optimize land-use patterns. (2) Tourism development causes a continuous spatial interference with landscapes. Land regulation policies have the positive and active effect of ignoring this interference rather than counteracting it. (3) The strict implementation of land regulation policies does not necessarily improve land-use patterns. Flexible policies achieve a better balanced land-use pattern than a combination of individual strict policies. However, the former cannot reduce as much vulnerability as the latter. Hence, policy assembly represents a trade-off with regards to balancing land demands, and it should vary based on regional land-use patterns and targets.  相似文献   

8.
If agriculture were to be included in Australia’s carbon price scheme, a key decision for government would be how to estimate greenhouse gas emissions. We explore the consequences of three different methods for measuring on‐farm emissions: national accounting methods, an amended version of those methods and use of best‐available local data. Estimated emissions under the three methods can vary widely; for example, on a case study farm in Western Australia, local data indicated 44 per cent lower emissions than did the national accounts method. If on‐farm emissions are subject to an emissions price, the impact on farm profit is large and varies considerably with different measurement methods. For instance, if a price of $23/t of CO2‐e applies then farm profit falls by 14.4–30.8 per cent depending on the measurement method. Thus, the choice of measurement method can have large distributional consequences. On the other hand, inaccurate measurement results in relatively minor deadweight losses. On‐farm sequestration through reafforestation may lessen the impact of an emissions price on farm businesses, although it will require a high carbon price to be viable, especially if sequestration rates are underestimated or low.  相似文献   

9.
Being the two largest ethanol producers in the world, biofuel policies in Brazil and the United States affect both their domestic markets and the global food and biofuel economy. In this article we develop a price endogenous mathematical programming model to simulate and analyze the impacts of biofuel mandates and trade distortions on land use, agricultural commodity and transportation fuel markets, and global environment. We find that an 80% increase in total biofuel production from its 103 billion liter baseline level to the mandated 183 billion liter level in 2022 can be achieved with less than 2% increase in total cropland use in both countries. In the United States, this would occur with cellulosic biofuels meeting nearly half of the biofuels consumed and produced largely on cropland pasture and corn ethanol meeting the rest of the mandate and resulting in a 2% increase in corn price. In Brazil, the expansion in sugarcane production would be achieved by reducing land under pasture and a marginal increase in intensification of livestock production. In the aggregate, biofuel policies increase economic surplus in both countries by 1% and redistribute the benefits from agricultural consumers to agricultural producers and the fuel sector. Finally, we also find that full implementation of the mandates in North America, China, and the European Union would reduce the global life‐cycle global greenhouse gas emissions by about 5%.  相似文献   

10.
We start out from the premise of a continued need for policy integration to address both economic and environmental issues in society, arguing that spatial planning is a privileged site to locate such endeavor. While policy integration in planning can acquire many forms, we understand those forms as ways to manage interdependencies between organizations. Spatial planning can contribute to the integration of policies in comprehensive visions, but a planning system, in the sense of a network of organizations, does not escape from the evolutionary rigidity introduced by interdependence and path-dependence. In a study of the evolutionary path of spatial governance in Uzbekistan, a former Soviet republic, we investigated the shifting patterns of policy integration that affected the organization of space. Policy integration in planning, it is found, is path-dependent, worked out positively and negatively, and necessarily relied on informal coordination mechanisms. Thus, a planning system striving to manage interdependence has to be highly reflexive, to understand the extent to which its transformation options are constrained by history and by present linkages between organizations.  相似文献   

11.
The link between trade and the environment has aroused considerable interest both in terms of the impact of trade liberalisation on the environment, and also the impact of environmental policy on production and trade. Of key environmental concern at present is global warming and its association with greenhouse gas emissions. Agriculture is a sector of the economy that both contributes to, and will be affected by, climate change. This paper models the impact of agricultural trade liberalisation on greenhouse gas emissions from agriculture around the world, focusing particularly on the effects on New Zealand, a small economy highly dependent on agricultural trade. A partial equilibrium agricultural multicountry, multicommodity trade model is used for the analysis, extended to include physical production systems and their greenhouse gas emissions. Two simulations are performed: removal of agricultural policies in the EU and in all OECD countries. The results indicate that although producer returns in New Zealand increase, greenhouse gas emissions also increase significantly. EU producers face lower returns but also lower greenhouse gas emissions.  相似文献   

12.
The Amazon is the largest tropical forest area on Earth, and has been undergoing rapid deforestation for the last four decades. In the Brazilian Amazon, large‐scale pasture for cattle ranching and soybean production are the main land uses, leading to a yearly deforestation rate of 0.5%. These conversions are mostly located in frontier areas distributed along the so‐called “arc of deforestation”. Within this large zone, various land use change processes are interacting through several modes of land valuation and organisation. From several case studies in the State of Pará (Brazil), the current project aims at analysing how landscape dynamics are related to infrastructure development, ecological conditions, zoning policies and to the evolution and the organisation of the production, consumption and marketing chains of livestock products. This paper presents the results for one test site, the region of São Félix do Xingú, South of Pará This region is the focus of land speculation, cattle expansion, and deforestation. Road construction, investments in electrical energy, financial credit for cattle, and the land reform policies have all fuelled this process. All these factors make this region one of the most dynamic agricultural frontiers in the Brazilian Amazon. The main objective of the paper is to improve our understanding of deforestation processes by crossing spatial analyses and 1ivestock economics.studies, and to characterise the role and impact of various natural and anthropic factors in the location and development of the main types of farmers, and their policy implications.  相似文献   

13.
Effective land-use is a prerequisite for sustainable urbanization. Land-use efficiency is intimately related to factors such as economic growth and industrial policies; however, limited studies focus on the spatial effects of urban form on land-use efficiency. Our empirical analysis includes 336 Chinese prefecture-level cities located in 31 provinces and four regions. We use five landscape metrics (patch density, mean patch size, edge density, mean shape index and patch cohesion index) to characterize urban form. Overall, China’s urban form metrics demonstrate significant regional differences from 2000 to 2015. Furthermore, land-use efficiency also demonstrates significant regional disparities. We prove the importance of the spatial effects of urban form on land-use efficiency using spatial regression models. Moreover, the impact of urban form metrics on land-use efficiency is sensitive to regional heterogeneity and city sizes. An urban form characterized by high patch density and large urban patch size is not conducive to increases in land-use efficiency in small cities although it is conducive to such increases in large cities. This research facilitates policymaking in the areas of spatial regulation and spatial planning in connection with national land-use.  相似文献   

14.
A country’s economic dependence on its trade with various other countries is often expressed in terms of trade values and shares. A country’s vulnerability to economic coercion by the countries with which it trades is similarly expressed in such terms. Using the recent issues relating to Australia’s coal trade with China as an example, we propose a better framework for assessing vulnerability to coercive trade instruments. We argue that the capacity for a given export trade to fund real consumption is a superior indicator of economic vulnerability than the simple value of the underlying trade flow. Our framework takes account of trade diversion, foreign capital ownership, the terms of trade, resource mobility, and capital and production tax rates. Using this framework, we demonstrate that the damage from trade sanction is far less than might be expected from a simple focus on the value of the affected trade flow alone.  相似文献   

15.
One of the questions debated in the ongoing WTO agricultural negotiations is whether 'trade-distorting' subsidies, or subsidies outside the 'green box', are needed in order to pursue non-trade concerns. The term 'multifunctional agriculture' is increasingly applied to describe non-trade concerns. This article focuses on how to achieve the multifunctional goals that nations may have with minimal trade-distortion. In the first part of the article, this is done by a literature review and a theoretical analysis. The findings are then converted into an analysis of possible policy formulations in a Norwegian context using a partial equilibrium model. The article argues that multifunctionality hardly can justify the use of market support, while it may justify production-related budget support if the positive externalities or public goods are produced jointly with or complementary to agricultural production. The article concludes with suggestions for WTO trade rules to prevent such policies from becoming a form of protectionism.  相似文献   

16.
This article examines informal housing/non-compliant development and related formalisation practices in Turkey. An in-depth policy analysis is conducted within a historical framework to underline outcomes and policy performance of approaches and formalisation initiatives. The analysis was conducted by taking the earlier studies focusing on the formalisation practices and debates in the international literature into consideration in order to understand how the case of Turkey confirms, contradicts or adds to the existing body of the literature. Formalisation practices in Turkey, especially the recent one implemented in 2018, have been successful to secure land tenure rights to a certain extent. However, these attempts have not addressed the issues such as mitigating hazard risks, enabling public participation, managing the processes transparently and inspecting the non-compliant development put forward by the scholars. The outcomes of the policy analysis are compared with the approaches of transition and developed economies in Mediterranean Basin. As a result of these comparisons, remarkable similarities were found. The findings of the analysis can be a harbinger of the future for other countries on a rapid development path by means of a considerable policy exchange between countries with similar population and GDP.  相似文献   

17.
In recent history, Indonesian forest policies have been dominated by deforestation in the name of economic progress. Many actors have expressed concerns about this trend and have tried to reverse it in favour of a more sustainable pathway. From 2004–2017, non-governmental environmental organisations fought for the case of the coastal Tripa peat swamp rainforest in the province of Aceh, Sumatra. Unique in Indonesian history, they managed halting and reversing the deforestation of an area. Their sustained action led the Indonesia state to cancel an oil palm plantation permit, with the plantation managers and owners facing heavy fines and prison terms. Our research seeks to understand the enabling factors making this success story possible. We used the Advocacy Coalition Framework for its capacity to deal with a complicated policymaking ecosystem whose decisions takes years for implementation.Our analysis found four enabling conditions of success, which were the NGOs capacity to: 1) sustain action for over a decade and grasp four changing events (post-tsunami reconstruction, emerging connection between forests and climate change, governors’ change, and use of digital technologies); 2) learn from own past failures marked by the evolution of their policy core beliefs, from ‘conserving forest for biodiversity’ to ‘conserving forest for local livelihoods’, and then to ‘conserving forest to prevent climate change’. As a result, they could broaden their advocacy coalition, which grew to include diverse social actors from local to international levels, including the central state's REDD + Task Force; 3) take an advantage over economic power by acting strategically and timely when changes occurred; and 4) closely monitor and disseminate knowledge (fire events, deforestation trends and peat depth), supporting a simple causal deforestation model which allowed a high degree of policy-oriented learning, helping the coalition to change its behaviour and act strategically.To sum up, the overall trend of rainforest destruction for agricultural extension in Southeast Asia, particularly in Sumatra, Indonesia, can be reversed, at least at the local level. Cautious not to overgeneralise, the Tripa case indicates that NGOs could improve forest governance by engaging in the long term, acting strategically, and building a broad socio-ecological and rights-based coalition.  相似文献   

18.
We use a multi–country computable general equilibrium (CGE) model with agricultural policy details to simulate the effects of North American Free Trade Agreement (NAFTA). We find that Mexico gains from NAFTA only when it also removes domestic distortions in agriculture. In that case, agriculture can generate allocative efficiency gains large enough to offset the terms of trade losses that arise because Mexico has higher initial tariffs than its NAFTA partners. When an RTA forces a developing country to reform its domestic distortions that are linked to trade restrictions, it becomes a building block toward multilateralism.  相似文献   

19.
20.
Limited opportunities for crop switching and lengthy preharvesting periods make the plantation sector particularly vulnerable to climate change. Surprisingly, however, the economic consequences of climate change on plantation crops are seldom analysed. Drawing on a unique primary panel data set from a representative cross section of 35 tea estates in Sri Lanka over the period 2002–2014, this study implements a structural model of estate profit maximisation to estimate the elasticity of labour demand with respect to different components of weather. Results indicate a negative relationship between labour demand and rainfall in the south‐west monsoon, the north‐east monsoon and the second inter‐monsoon. A positive relationship is found between labour demand and rainfall in the first inter‐monsoon. Overall, predicted changes in rainfall by 2050 are anticipated to reduce labour demand by approximately 1,175,000 person‐days per year across Sri Lanka's tea plantation sector. This is likely to have considerable social and welfare implications, particularly for the Indian Tamil women who comprise the majority of the sector's workforce.  相似文献   

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