scholarly journals Crop Prices and Deforestation in the Tropics

Author(s):  
Nicolas Berman ◽  
Mathieu Couttenier ◽  
Antoine Leblois ◽  
Raphaël Soubeyran

Abstract Global food demand is rising, pushed by growing world population and dietary changes in developing countries. This encourages farmers to increase crop production which, in turn, increases worldwide demand for agricultural land and the pressure on tropical forests. With a possible doubling of world food demand by 2050, this pressure is not likely to decrease in the next decades. While the impact of food demand on deforestation has been pushed forward in the medias, rigorous evidence using large-N data estimating the causal impact of crop price variations on deforestation remains scarce. Here, we quantify this impact over the twenty first century using high resolution annual forest loss data across the tropics, combined with information about crop-specific agricultural suitability and annual international commodity prices. We find a sizeable impact of price variations on deforestation: crop price variations are estimated to have contributed to 35% of the total predicted deforestation in the tropics over the period 2001-2018. We also highlight that the degree of openness to international trade and level of economic development are first-order local characteristics to explain the magnitude of the impact of crop prices on deforestation.

2019 ◽  
pp. 116-123
Author(s):  
Veronika Pobedonostseva ◽  
Galina Pobedonostseva

The basic principles and development priorities of the Arctic zone of the Russian Federation and the impact on some of them of the global growth factor of the world population are considered. The analysis of the rating of the quality of life of the population of the Russian Arctic regions. It lags behind the rating of the level of economic development of these regions.


Author(s):  
Aiste Galnaitytė ◽  
Irena Kriščiukaitienė

A new United Nations sustainable development Agenda underlines the relevance of Organic farming development. In the same line the Government of the Republic of Lithuania seeks to create economically efficient and competitive agriculture, based on low environmental impact farming, to develop organic farming and high quality certified agricultural and food production, conserve natural resources. Transition to the sustainable agricultural development faces the main difficulty, which is formulated as a scientific problem: how to reconcile the economic and political interests? This research is carried out by the purpose to offer alternative possibilities for organic farming development. The research was carried out using mathematical programming model and scenario analysis. Model is formulated as a linear mathematical programming optimization model, consisting of objective function, constraints, expressed as inequalities and fulfilling non-negative values conditions. The model includes existing and results provide the maximum gross value added ensuring crop production structure, taking in to account farming practices applied in Lithuania: conventional, organic, organic in conversion and integrated. The analysis of three scenarios has shown that the majority of compensatory payments and prices of organic production (2013) are insufficient to increase organic crop area to the extent of 10 percent of total agricultural land in Lithuania by 2020: only by one third (31 percent) higher organic production prices, lead to reached 10.5 percent of organic crop area from the total agricultural land. The research results provide scientifically based knowledge to the policy makers about the impact of the policy measure “Organic farming” on the development of organic farming.


2015 ◽  
Vol 6 (2) ◽  
pp. 1129-1162 ◽  
Author(s):  
K. F. Ahmed ◽  
G. Wang ◽  
L. You ◽  
M. Yu

Abstract. Agriculture is a key component of anthropogenic land use and land cover changes that influence regional climate. Meanwhile, in addition to socioeconomic drivers, climate is another important factor shaping agricultural land use. In this study, we compare the contributions of climate change and socioeconomic development to potential future changes of agricultural land use in West Africa using a prototype land use projection (LandPro) algorithm. The algorithm is based on a balance between food supply and demand, and accounts for the impact of socioeconomic drivers on the demand side and the impact of climate-induced crop yield changes on the supply side. The impact of human decision-making on land use is explicitly considered through multiple "what-if" scenarios. In the application to West Africa, future crop yield changes were simulated by a process-based crop model driven with future climate projections from a regional climate model, and future changes in food demand were projected using a model for policy analysis of agricultural commodities and trade. Without agricultural intensification, the climate-induced decrease in crop yield together with increase in food demand are found to cause a significant increase in agricultural land use at the expense of forest and grassland by the mid-century. The increase in agricultural land use is primarily climate-driven in the western part of West Africa and socioeconomically driven in the eastern part. Analysis of results from multiple decision-making scenarios suggests that human adaptation characterized by science-informed decision making to minimize land use could be very effective in many parts of the region.


2021 ◽  
Author(s):  
Roukaya Ghorbel ◽  
Jamel Chakchak ◽  
Hatice Basmacıoğlu Malayoğlu ◽  
Numan S. Çetin

It is estimated that the global population will reach approximately 10 billion people by 2050 and 66% of the world population will live in urban areas. This growth in cities creates demand for fresh products to maintain a healthy population, a product that often exposed to a long journey to reach the consumer, not only losing quality and nutritive value in the process, but also requiring a significant cost of fossil fuel for transportation and storage. However, the world’s agricultural land among being limited, is also facing major problems such as pollution, salinization and drought that do not favor crop production. The need for food security has paved the way for landless agriculture, becoming more popular in the urban area and becoming a part of urban farming. This article aims to examine hydroponic technologies to help expand the knowledge of their application in terms of science, origin, dynamics and farming systems. Among the benefits of soilless cultures; reservation of cultivated land for main crops; saving at least 90% of irrigation water; use of almost constant amount of recycled water; successfully growing almost every vegetable crops and having highest productivity compared to conventional agriculture. Therefore, it is an indispensable solution in areas where arable land is not available or in saline-prone areas, in short, wherever there is competition for land and water. The purpose of this study is an overview of soilless farming systems, explaining the most widely used hydroponic system, the importance of water quality, nutrient content, grown crops and ultimately cost benefit in terms of economics.


Author(s):  
Ludwik Wicki

The growing world population and the increase in the wealth of societies are the reason for the growing demand for food. An important issue is to obtain production growth without excessive increase of use of production inputs. It is possible thanks to biological progress, whose share in creating the growth of plant production in the world is estimated at 40%. The aim of the work is to determine the impact of biological progress on the increase in the yield level of spring cereals in Poland. The analysis was based on the results of post-registration varietal testing for the years 2006-2017. It was found that the yield of varieties of spring cereals increased in the analyzed period by an average of over 15 dt/ha. The share of biological progress in the observed increase ranged from 15% for spring triticale to 38% for spring barley. On average, it was 28% at a lower production intensity level and 23% at a higher intensity level. The importance of biological progress in the increase of yields of spring cereal varieties in Poland is high, and the effective dissemination of new varieties may allow for obtaining more crop production without increasing inputs, if the level of utilization of the varieties’ potential will be higher in agriculture production.


PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0251091
Author(s):  
Eda Ustaoglu ◽  
M. Erdem Kabadayı ◽  
Petrus Johannes Gerrits

Agricultural land cover and its changing extent are directly related to human activities, which have an adverse impact on the environment and ecosystems. The historical knowledge of crop production and its cultivation area is a key element. Such data provide a base for monitoring and mapping spatio-temporal changes in agricultural land cover/use, which is of great significance to examine its impacts on environmental systems. Historical maps and related data obtained from historical archives can be effectively used for reconstruction purposes through using sample data from ground observations, government inventories, or other historical sources. This study considered historical population and cropland survey data obtained from Ottoman Archives and cropland suitability map, accessibility, and geophysical attributes as ancillary data to estimate non-irrigated crop production and its corresponding cultivation area in the 1840s Bursa Region, Turkey. We used the regression analysis approach to estimate agricultural land area and grain production for the unknown data points in the study region. We provide the spatial distribution of production and its cultivation area based on the estimates of regression models. The reconstruction can be used in line with future historical research aiming to model landscape, climate, and ecosystems to assess the impact of human activities on the environmental systems in preindustrial times in the Bursa Region context.


2016 ◽  
Vol 7 (1) ◽  
pp. 151-165 ◽  
Author(s):  
Kazi Farzan Ahmed ◽  
Guiling Wang ◽  
Liangzhi You ◽  
Miao Yu

Abstract. Agriculture is a key component of anthropogenic land use and land cover changes that influence regional climate. Meanwhile, in addition to socioeconomic drivers, climate is another important factor shaping agricultural land use. In this study, we compare the contributions of climate change and socioeconomic development to potential future changes of agricultural land use in West Africa using a prototype land use projection (LandPro) algorithm. The algorithm is based on a balance between food supply and demand, and accounts for the impact of socioeconomic drivers on the demand side and the impact of climate-induced crop yield changes on the supply side. The impact of human decision-making on land use is explicitly considered through multiple "what-if" scenarios. In the application to West Africa, future crop yield changes were simulated by a process-based crop model driven with future climate projections from a regional climate model, and future changes of food demand is projected using a model for policy analysis of agricultural commodities and trade. Without agricultural intensification, the climate-induced decrease in crop yield together with future increases in food demand is found to cause a significant increase in cropland areas at the expense of forest and grassland by the mid-century. The increase in agricultural land use is primarily climate-driven in the western part of West Africa and socioeconomically driven in the eastern part. Analysis of results from multiple scenarios of crop area allocation suggests that human adaptation characterized by science-informed decision-making can potentially minimize future land use changes in many parts of the region.


Subject The outlook for China's agricultural sector in 2017. Significance Last year saw the removal of a price floor for corn and the launch of the 13th Five-Year Plan, which will guide agricultural policy to 2020. With China’s fertility rate among the lowest in the world, population growth is no longer a significant determinant of food demand. However, demographics still have a role to play through the impact of the accelerated ageing of the population on diet. Impacts Between now and the mid-2030s, meat consumption (including fish) is likely to rise more than 60%. Dairy products will be the fastest-growing sector, with per capita milk consumption rising something like 150% by 2030. There is significant scope to raise corn yields through technology and market mechanisms. Price supports for rice and wheat are likely to be abandoned.


Author(s):  
T.B. Shalov ◽  
◽  
S.G. Bliev ◽  
L.Kh. Azubekov ◽  
◽  
...  

The paper presents the dynamics of changes in the structure of agricultural land in the Kabardino-Balkar Republic, characteristics of the impact of land structure on land use and ecology, analysis of land use and land ownership problems, and prospects for crop production in the region. A method for regulating the structure of agricultural land by determining the maximum changes in the ratio of arable land and gardens.


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