scholarly journals Land Use Scenarios and Their Effect on Potential Crop Production: The Case of Gambella Region, Ethiopia

Agriculture ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 105 ◽  
Author(s):  
Azeb W. Degife ◽  
Florian Zabel ◽  
Wolfram Mauser
Keyword(s):  
Land Use ◽  
Crop Production ◽  
Agricultural Intensification ◽  
Irrigated Agriculture ◽  
High Input ◽  
Low Input ◽  
Land Use Scenarios ◽  
Food Shortages ◽  
Increase Food Production ◽  
Caloric Requirements

Agricultural intensification and cropland expansion are the key policies to increase food production in Ethiopia. Gambella is one of the regions in Ethiopia which is highly suitable for agriculture; however, the local people still face food shortages. We therefore investigated the potential for intensification and cropland expansion. In this study, we developed land use scenarios of agricultural intensification and expansion and analysed their effect on potential crop production in the region and estimated the population that could be nourished as a result. We distinguished between different degrees of intensification, ranging from low input rainfed to high input irrigated agriculture and different degrees of expansion, considering the best 30% or 50% of land to be utilized for expansion. While the results reveal that irrigation had almost no effect on potential yields, they also show that the potential calorie production in all scenarios far exceeds the current and possible future caloric requirements of Gambella’s population. For example, for the top 50% expansion scenario, calorie production increased by +428% for the low input and by +1092% for the high input scenarios. Thus, Gambella could nourish up to 21 million people and serve as a bread basket for the entire country, which could improve national food security.

scholarly journals Energy implications of the 21st century agrarian transition

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Lorenzo Rosa ◽  
Maria Cristina Rulli ◽  
Saleem Ali ◽  
Davide Danilo Chiarelli ◽  
Jampel Dell’Angelo ◽  
...  
Keyword(s):  
Energy Demand ◽  
Crop Production ◽  
Large Scale ◽  
Fossil Fuel ◽  
Well Being ◽  
High Energy ◽  
Energy Access ◽  
High Input ◽  
Low Input ◽  
Agrarian Transition

AbstractThe ongoing agrarian transition from small-holder farming to large-scale commercial agriculture is reshaping systems of production and human well-being in many regions. A fundamental part of this global transition is manifested in large-scale land acquisitions (LSLAs) by agribusinesses. Its energy implications, however, remain poorly understood. Here, we assess the multi-dimensional changes in fossil-fuel-based energy demand resulting from this agrarian transition. We focus on LSLAs by comparing two scenarios of low-input and high-input agricultural practices, exemplifying systems of production in place before and after the agrarian transition. A shift to high-input crop production requires industrial fertilizer application, mechanization of farming practices and irrigation, which increases by ~5 times fossil-fuel-based energy consumption compared to low-input agriculture. Given the high energy and carbon footprints of LSLAs and concerns over local energy access, our analysis highlights the need for an approach that prioritizes local resource access and incorporates energy-intensity analyses in land use governance.

The main directions of scientific support for the implementation of the system of organic farming in Ukraine

2016 ◽  
Vol 1 (90) ◽  
pp. 22-24
Author(s):  
V.F. Kaminskyi ◽  
S.G. Korsun
Keyword(s):  
Land Use ◽  
Organic Farming ◽  
Crop Production ◽  
Land Ownership ◽  
Scientific Support ◽  
Speed Up ◽  
Organic Crop Production ◽  
Advanced Production ◽  
And Training ◽  
Organizational Issue

The aim of this work was to study the basic directions of scientific support introduction of organic farming in Ukraine. The study used methods of comparison, synthesis, analysis, induction and deduction. The article indicated on the main areas that need special attention from researchers and suggests one possible mechanism to remove the remaining obstacles to organizational issue introduction of scientific developments in the production of organic and training areas. This can speed up the creation of new and manage existing land ownership and land use organic farming with the introduction of advanced production technology of organic crop production.

Deferring Crisis

2018 ◽  
Author(s):  
Erin Stewart Mauldin
Keyword(s):  
Land Use ◽  
Environmental Impacts ◽  
Shifting Cultivation ◽  
Crop Production ◽  
Animal Husbandry ◽  
Antebellum South ◽  
Westward Expansion ◽  
The Cost ◽  
Land Use Practices ◽  
Ecological Regime

This chapter explores the ecological regime of slavery and the land-use practices employed by farmers across the antebellum South. Despite the diverse ecologies and crop regimes of the region, most southern farmers employed a set of extensive agricultural techniques that kept the cost of farming down and helped circumvent natural limits on crop production and stock-raising. The use of shifting cultivation, free-range animal husbandry, and slaves to perform erosion control masked the environmental impacts of farmers’ actions, at least temporarily. Debates over westward expansion during the sectional crisis of the 1850s were not just about the extension of slavery, they also reflected practical concerns regarding access to new lands and fresh soil. Both were necessary for the continued profitability of farming in the South.

scholarly journals A Comparison of Approaches to Regional Land-Use Capability Analysis for Agricultural Land-Planning

Land ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 458
Author(s):  
Tara A. Ippolito ◽  
Jeffrey E. Herrick ◽  
Ekwe L. Dossa ◽  
Maman Garba ◽  
Mamadou Ouattara ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Crop Production ◽  
Agricultural Land ◽  
Arable Land ◽  
Agricultural Activity ◽  
Field Samples ◽  
Agricultural Potential ◽  
Fertility Data ◽  
Using Data

Smallholder agriculture is a major source of income and food for developing nations. With more frequent drought and increasing scarcity of arable land, more accurate land-use planning tools are needed to allocate land resources to support regional agricultural activity. To address this need, we created Land Capability Classification (LCC) system maps using data from two digital soil maps, which were compared with measurements from 1305 field sites in the Dosso region of Niger. Based on these, we developed 250 m gridded maps of LCC values across the region. Across the region, land is severely limited for agricultural use because of low available water-holding capacity (AWC) that limits dry season agricultural potential, especially without irrigation, and requires more frequent irrigation where supplemental water is available. If the AWC limitation is removed in the LCC algorithm (i.e., simulating the use of sufficient irrigation or a much higher and more evenly distributed rainfall), the dominant limitations become less severe and more spatially varied. Finally, we used additional soil fertility data from the field samples to illustrate the value of collecting contemporary data for dynamic soil properties that are critical for crop production, including soil organic carbon, phosphorus and nitrogen.

Ancient Settlement, Urban Gardening, and Environment in the Gulf Lowlands of Mexico

2007 ◽  
Vol 18 (4) ◽  
pp. 385-406 ◽  
Author(s):  
Barbara L. Stark ◽  
Alanna Ossa
Keyword(s):  
Land Use ◽  
River Basin ◽  
Water Table ◽  
Agricultural Intensification ◽  
Urban Settlement ◽  
Settlement Density ◽  
Urban Gardening ◽  
Agrarian Societies ◽  
Seasonally Flooded ◽  
Flooded Areas

Urban settlement in the western lower Papaloapan River basin in the Gulf lowlands was dispersed and likely employed intensive gardening near domiciles. Land surrounding homes also may have played a symbolic role in these agrarian societies. Water works—formal ponds associated with temple platforms and other prominent structures as well as with many residential mounds—support the idea of symbolic as well as practical functions in land use around buildings. Dispersed occupation occurs in low elevations suited to recessional planting, a technique that takes advantage of dry season ground moisture in low areas where rain and flood waters recede as the water table drops. We analyze elevational zones to show greater settlement density in the low-lying Blanco River delta than in higher elevations upriver. Analysis of distances between archaeological residences and wetlands and drainages shows that residences generally were close to seasonally flooded areas. We also highlight anthropogenic qualities in the alluvial landscape, offering a land use perspective distinct from other views of agricultural intensification. The settlement pattern is compatible with Mesoamerican forms of urbanism.

Forest carbon trajectories: Consequences of alternative land-use scenarios in New England

2021 ◽  
Vol 69 ◽  
pp. 102310
Author(s):  
Meghan Graham MacLean ◽  
Matthew J. Duveneck ◽  
Joshua Plisinski ◽  
Luca L. Morreale ◽  
Danelle Laflower ◽  
...  
Keyword(s):  
Land Use ◽  
New England ◽  
Forest Carbon ◽  
Land Use Scenarios

Incentives for low-input land-use types and their influence on the attractiveness of landscapes

2008 ◽  
Vol 89 (3) ◽  
pp. 222-233 ◽  
Author(s):  
Beatrice Schüpbach ◽  
Kurt Zgraggen ◽  
Erich Szerencsits
Keyword(s):  
Land Use ◽  
Low Input ◽  
Land Use Types

Developing resilience to hydrologic extremes in irrigated agriculture through risk transfer mechanisms in the context of southeastern Brazil

2021 ◽  
Author(s):  
Marcos Roberto Benso ◽  
Gabriela Chiquito Gesualdo ◽  
Eduardo Mario Mendiondo ◽  
Lars Ribbe ◽  
Alexandra Nauditt
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Crop Yield ◽  
Cash Flow ◽  
Synthetic Data ◽  
Southeastern Brazil ◽  
Irrigated Agriculture ◽  
Risk Transfer ◽  
Hydrologic Extremes ◽  
Transfer Mechanisms

<p>In the last decades, we have witnessed increasing losses on crop yield due to an increase in magnitude and frequency of hydrological extremes such as droughts and floods. These hazards promote systematic and regressive impacts on the economy and human behavior. Risk transfer mechanisms are key to cope with the economic impacts of these events, therefore safeguarding income to farmers and building resilience to the overall sector. The index-based insurance establishes an index that can be monitored in real or near-real-time, which is associated with losses to a specific agent. While the manifestation of the causality hazard to exposure and exposure to damage and its mathematical representation in cash flow equations is a hard task, incorporating an objective and transparent index adds up a new challenge to this modeling framework. Moreover, past events that have been used as the main guide to evaluating expected losses given risk can no longer offer an accurate risk estimation due to environmental changes. This work aims to tackle the hydrologic extremes risk transfer modeling in irrigated agriculture to obtain optimized premium values and parameters of an insurance fund for irrigated agriculture in Southeastern Brazil. This study will be developed in the Piracicaba, Jundiaí, and Capivari river basin, also known as PCJ catchment in the states of São Paulo and Minas Gerais, Brazil. The region, with approximately 5 million inhabitants, is considered one of the most important in Brazil due to its economic development, which represents about 7% of the National Gross Domestic Product (GDP). The Hydrologic Risk Transfer Model of the Hydraulic and Sanitation department of the University of São Paulo (MTRH-SHS) will be used to obtain optimized premium values. The main index variable is streamflow fitted to extreme value theory distribution for low and high flows. To evaluate climate change and land-use change scenarios, Regional Climate Models (RCMs) and land use projections will be related to streamflow in a hierarchical Bayesian framework. Synthetic data will be then simulated according to scenarios previously defined in a Monte Carlo approach. The hazard-damage function will be obtained by total crop yield and revenue per municipality, then the relationship between the index and expected losses is determined in an empirical equation. Finally, a cash flow computation is run with synthetic data obtaining optimized premiums in a way to minimize fund storage values. We expect to provide further evidence of the feasibility of actuarially fair premium values for the agents in the sector considering global phenomena of climate change and land-use change. Results will support climate change adaptation plans and policy as well as contribute to methods for estimating risk in a changing environment.</p>

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