scholarly journals The Historically Evolving Impact of the Ogallala Aquifer: Agricultural Adaptation to Groundwater and Drought

2014 ◽  
Vol 6 (1) ◽  
pp. 190-219 ◽  
Author(s):  
Richard Hornbeck ◽  
Pinar Keskin

Agriculture on the American Plains has been constrained historically by water scarcity. Post-WWII technologies enabled farmers over the Ogallala aquifer to extract groundwater for large-scale irrigation. Comparing counties over the Ogallala with nearby similar counties, groundwater access increased agricultural land values and initially reduced the impact of droughts. Over time, land use adjusted toward water intensive crops and drought sensitivity increased. Viewed differently, farmers in nearby water-scarce areas maintained lowervalue drought-resistant practices that fully mitigate naturally higher drought sensitivity. The evolving impact of the Ogallala illustrates the importance of water for agricultural production, but also the large scope for agricultural adaptation to groundwater and drought. (JEL N51, N52, Q15, Q25, Q54)

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 585
Author(s):  
Catalina Iticescu ◽  
Puiu-Lucian Georgescu ◽  
Maxim Arseni ◽  
Adrian Rosu ◽  
Mihaela Timofti ◽  
...  

The use of sewage sludge in agriculture decreases the pressure on landfills. In Romania, massive investments have been made in wastewater treatment stations, which have resulted in the accumulation of important quantities of sewage sludge. The presence of these sewage sludges coincides with large areas of degraded agricultural land. The aim of the present article is to identify the best technological combinations meant to solve these problems simultaneously. Adapting the quality and parameters of the sludge to the specificity of the land solves the possible compatibility problems, thus reducing the impact on the environment. The physico-chemical characteristics of the fermented sludge were monitored and optimal solutions for their treatment were suggested so as to allow that the sludge could be used in agriculture according to the characteristics of the soils. The content of heavy metals in the sewage sludge was closely monitored because the use of sewage sludge as a fertilizer does not allow for any increases in the concentrations of these in soils. The article identifies those agricultural areas which are suitable for the use of sludge, as well as ways of correcting some parameters (e.g., pH), which allow the improvement of soil quality and obtained higher agricultural production.


2015 ◽  
Vol 2015 (3) ◽  
pp. 60-75
Author(s):  
Elena Belova ◽  
Yuliya Rozenfeld

The subject of the study presented in this article is the economic relations arising due to the progress of the urbanization that leads to changes in agricultural production. For a long time in Russia a reduction of agricultural land, arable land and crops takes place. One reason for this is the global progress of urbanization. Changes in agricultural land use occur across the country however this process is uneven in different regions. Among all regions Moscow and Moscow region significantly stand out. The study showed that in the more urbanized regions of the country reduction of the agricultural land and changes in agricultural land use are greater than in less urbanized ones.


2020 ◽  
Author(s):  
Youness Hrour ◽  
Zahra Thomas ◽  
Ophélie Fovet ◽  
Pauline Rousseau-Gueutin ◽  
Pascal Pichelin ◽  
...  

<p>Water resources depletion under climate change is a major concern over the world. Mediterranean countries are deeply affected by changes in precipitation intensity, duration and frequency. Such changes lead to decrease in the averaged stream discharge and groundwater recharge consequently decreasing water resources availability. Our research focused on a case study performed in the Loukkos catchment, draining an area of 3730 km², located in the north of Morocco. Trend analysis of 8 to 62 years of precipitations was conducted based on statistical tests at about ten stations over the catchment. 20 to 70 years of temperature and discharge data were also analyzed. The time series were investigated using several non-parametric tests in order to characterize trends, to track down changes and their effect on agricultural land changes at the catchment scale. The present study highlights the impact of climate and catchment hydrology on agricultural practices and water resources used for irrigation. Analysis of precipitation indices showed that the temporal distribution of precipitation in the study area has changed since the 1970s. This change results from a reduction in precipitation, a shift in the hydrological year and a reduction in the number of wet days per year. Severe drought periods appear after the climatic rupture, which occurred around 1971. An increase in the intensity and frequency of droughts, in addition to an increase in the annual and seasonal average temperature (more than 1°C) were observed. Such changes contributed to agricultural practice modifications, with development of irrigated agriculture and later sowing period to adapt to the delay in the onset of the rains. For the future, the use of IPCC/CMIP5 climate projections for the Mediterranean region will help to evaluate how the precipitation indices will evolve. The impact of irrigation on stream discharge and groundwater recharge needs to be considered through agro-hydrological modeling including agricultural trajectory. Such tools will help to strengthen agricultural adaptation strategies and promote resilient farming practices.</p><p>Keywords: Precipitation trends, agricultural land use, water use for irrigation, agricultural adaptation strategies.</p><p> </p>


2021 ◽  
Vol 2021 (3) ◽  
pp. 7-32
Author(s):  
Volodymyr Sidenko ◽  
◽  

The article considers various global factors influencing rural development under the conditions of liberalization of the agricultural land market in Ukraine. The author assesses the impact of global processes and global capital on the development of national farms, income distribution, access to land resources, production processes and equitable development in this country. It is proved that globalization, leading to increased concentration of agri-food production and business and expanding the role of large transnationalized corporations, is primarily aimed at exploiting the country’s existing comparative advantages, rather than increasing them, and promotes, in many recipient countries, a model of double economy split in the technological and socio-economic dimensions into qualitatively heterogeneous sectors. The author concludes that although global factors of agricultural production may have a relatively positive impact in macroeconomic terms, the dominance of multinational (transnational) companies, large exporting companies and financially powerful sovereign welfare funds in the market may create risks and threats of crowding out Ukrainian farmers from the market and blocking the sustainable development of rural areas. At the same time, Ukraine's agricultural sector will be transformed into a raw-material link of global food production chains dominated by large transnationalized entities, and a kind of raw-material enclave of transnationalized production will be created within the Ukrainian economy. The article argues that in today's global economy, where cardinal transformations are taking place and uncertainty is growing, land will become an increasingly valuable asset, attractive not only to agricultural producers but also to land speculators and those who try to maintain the value of their assets under the conditions of growing global risks. Under such conditions, investment in land will not at all necessarily contribute to the development of agricultural production, because speculative capital in the face of widespread expectations of a long and significant upward trend in land prices will prevail over productive agricultural capital. In general, this might lead to a significant increase in the cost of agricultural production and food prices. The author proves that the liberalization of the land market leads to increased risks of transfer of the control over Ukraine’s land resources to foreigners (sovereign financial funds and major international corporations), given their dramatic advantage by available financial resources for land acquisition, compared to those possessed by Ukraine’s residents. The article substantiates a set of policy measures and national policy instruments necessary to minimize the risks associated with the introduction (in the context of globalization) of free purchase and sale of agricultural land, which comply with the regulation principles of the European Union.


Author(s):  
Stanisław BACIOR ◽  
Barbara PRUS ◽  
Małgorzata DUDZIŃSKA

The developed, innovative method of estimating the impact of motorway on agricultural land allows determination of all the losses associated with the directions of this impact. The basis for the determination of losses is the analysis of variability in land use and the quality classes and location of access roads to the land along the axis of the planned motorway. The approved measure of the multidirectional impact of the motorway on agricultural land is a change in the value of land, which is designated taking into account the differentiation of their suitability for agricultural production. The developed method of determining the impact of motorway on agricultural land was presented on the example of A4 motorway section between Bratkowice and Mrowla. The existing section of motorway was assessed and then for the same section the calculations were made again, but with an alternative location of the motorway overpasses. In the case of the existing section, the construction of one kilometer of the section of motorway under consideration will result in a reduction in the value of agricultural land of 1725 cereal units. Acquisition of land for the construction of the motorway and its negative impact cover about 69% of the total reduction in value of agricultural land. The remaining 31% of the land value reduction is related to the increase in transport and the deterioration of the parcels layout. On the other hand, in the case of the section with alternative arrangement of viaducts, the value of agricultural land is reduced of 1538 cereal units. Acquisition of land under construction and its toxic impact will be equal 75%, while the combined effect of transport growth and deterioration of the layout makes 25%.


2018 ◽  
Vol 63 ◽  
pp. 00007
Author(s):  
Stanisław Bacior ◽  
Małgorzata Dudzińska ◽  
Barbara Prus

The innovative method of assessment of the motorway impact on agricultural land presented in this study allows to estimate all losses related to the directions of this impact. The basis for the determination of losses is the analysis of land use variability and bonitation classes as well as the location of access roads to the land along the axis of the planned motorway. The applied measure of the motorway's impact on agricultural land is the change in land value, at which determination only the diversity of its suitability for agricultural production is taken into account. The developed method of determining the impact of the motorway on agricultural land was presented on the example of the A4 motorway section between the villages Jasień and Bobrowniki Małe. The existing motorway section was evaluated and then the obtained data were compared with the results obtained for the alternative version of the motorway running on the same section.


2020 ◽  
Vol 12 (11) ◽  
pp. 4637 ◽  
Author(s):  
Kuo-Ching Huang ◽  
Chen-Jai Lee ◽  
Shih-Liang Chan ◽  
Cheng-Hsin Tai

Maintaining a certain amount of agricultural land and promoting its agricultural land utilization efficiency is essential in a country. Many innovative strategies for adapting to climate change have been implemented in developed countries. To achieve the goal of climate change adaptation for agricultural land, a vulnerability assessment of farmland is indispensable. Based on the research framework of the Intergovernmental Panel on Climate Change, this study applied the structure of exposure, sensitivity, and adaptation to build criteria and conduct an evaluation of a designated area in Southern Taiwan. We identified the key factors of the vulnerability of farmland, through mapping with spatial analysis, and by using geographic information system tools. The main purpose of the application of a vulnerability assessment is not to explicitly describe the status of agricultural land to climate change, but to help local government and farmers to identify the critical area, and to discuss the appropriated adaptive policies. According to the results of the vulnerability assessment of agricultural land, the entire study region can be divided into three patterns: Pattern 1, located in the western coastal zone, filled with various attributes of high vulnerability; Pattern 2, distributed on the central plain region in the east, with complete blocks of agricultural land and low vulnerability; and Pattern 3, located in the central plain region to the west, a region in which areas with various vulnerability levels. The following three types of adaptation strategies for climate change for farmland were established: (1) the enhancement of agricultural production, (2) the maintenance of agricultural production, and (3) the conservation of the agricultural environment. The current results can serve as valuable guidelines for governments to implement feasible local adaptation strategies in the future.


Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1519 ◽  
Author(s):  
Susanne Klages ◽  
Claudia Heidecke ◽  
Bernhard Osterburg

The hot summer of 2018 posed many challenges with regard to water shortages and yield losses, especially for agricultural production. These agricultural impacts might further pose consequent threats for the environment. In this paper, we deduce the impact of droughts on agricultural land management and on water quality owing to nitrate pollution. Using national statistics, we calculate a Germany-wide soil surface nitrogen budget for 2018 and deduce the additional N surplus owing to the dry weather conditions. Using a model farm approach, we compare fertilization practices and legal restrictions for arable and pig breeding farms. The results show that, nationwide, at least 464 kt of nitrogen were not transferred to plant biomass in 2018, which equals an additional average nitrogen surplus of 30 kg/ha. The surplus would even have amounted to 43 kg/ha, if farmers had continued their fertilization practice from preceding years, but German farmers applied 161 kt less nitrogen in 2018 than in the year before, presumably as a result of the new implications of the Nitrates Directive, and, especially on grassland, owing to the drought. As nitrogen surplus is regarded as an “agri-drinking water indicator” (ADWI), an increase of the surplus entails water pollution with nitrates. The examples of the model farms show that fertilization regimes with high shares of organic fertilizers produce higher nitrogen surpluses. Owing to the elevated concentrations on residual nitrogen in soils, the fertilization needs of crops in spring 2019 were less pronounced than in preceding years. Thus, the quantity of the continuously produced manure in livestock farms puts additional pressure on existing storage capacities. This may particularly be the case in the hot-spot regions of animal breeding in the north-west of Germany, where manure production, biogas plants, and manure imports are accumulating. The paper concludes that water shortages under climate change not only impact agricultural production and yields, but also place further challenges and threats to nutrient management and the environment. The paper discusses preventive and emergency management options for agriculture to support farmers in extremely dry and hot conditions.


2019 ◽  
Vol 11 (23) ◽  
pp. 6770
Author(s):  
Małgorzata Dudzińska ◽  
Stanisław Bacior ◽  
Barbara Prus

Designing and implementing investment projects are activities that have a direct impact on the natural environment and pose a threat to sustainable development of rural areas. The issue of agricultural production space protection during the implementation of linear projects in Poland is often only mentioned at the design stage as the final element. The aim of the study is to propose a tool to enable an assessment and modelling of a motorway design variant in order to minimise the impact on the agricultural production space. Four indicators introduced in the modelling procedure include the loss of agricultural land, a decrease of land productivity in the vicinity of an investment project, changes in the spatial structure of areas divided by the investment, and difficulties resulting from the accessibility of areas. The superiority of the proposed method over consolidations implemented in the vicinity of a motorway is due to the introduction into projects not only of elements organising the space but also attributes that prevent the reduction of the production capabilities of the land located in the vicinity of the motorway (Module I) and, secondly, the elements decreasing the re-organisation of the space (Module II).


Agriculture ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 148
Author(s):  
Małgorzata Kozak ◽  
Rafał Pudełko

Agricultural land abandonment is a process observed in most European countries. In Poland and other countries of Central and Eastern Europe, it was initiated with the political transformation of the 1990s. Currently, in Poland, it concerns over 2 million ha of arable land. Such a large acreage constitutes a resource of land that can be directly restored to agricultural production or perform environmental functions. A new concept for management of fallow/abandoned areas is to start producing biomass for the bioeconomy purposes. Production of perennial crops, especially on poorer soils, requires an appropriate assessment of soil conditions. Therefore, it has become crucial to answer the question: What is the real impact of the fallowing process on soil, and is it possible to return it to production at all? For this purpose, on the selected fallowed land that met the marginality criteria defined under the project, physicochemical tests of soil properties were carried out, and subsequently, the results were compared with those of the neighboring agricultural land and with the soil valuation of the fallow land, which was conducted during its past agricultural use. The work was mainly aimed at analyzing the impact of long-term fallowing on soil pH, carbon sequestration and nutrient content, e.g., phosphorus and potassium. The result of the work is a positive assessment of the possibility of restoring fallowed land for agricultural production, including the production of biomass for non-agricultural purposes. Among the studied types of fallow plots, the fields where goldenrod (Solidago L.—invasive species) appeared were indicated as the areas most affected by soil degradation.


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