scholarly journals The Impact of Agricultural Production and Policy on Water Quality during the Dry Year 2018, a Case Study from Germany

Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1519 ◽  
Author(s):  
Susanne Klages ◽  
Claudia Heidecke ◽  
Bernhard Osterburg
Keyword(s):  
Water Quality ◽  
Agricultural Production ◽  
Agricultural Land ◽  
Plant Biomass ◽  
Hot Spot ◽  
Organic Fertilizers ◽  
Water Shortages ◽  
Management Options ◽  
Nitrogen Surplus ◽  
The Impact

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.

scholarly journals Optimal Solutions for the Use of Sewage Sludge on Agricultural Lands

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 585
Author(s):  
Catalina Iticescu ◽  
Puiu-Lucian Georgescu ◽  
Maxim Arseni ◽  
Adrian Rosu ◽  
Mihaela Timofti ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Agricultural Production ◽  
Agricultural Land ◽  
Chemical Characteristics ◽  
Optimal Solutions ◽  
Physico Chemical ◽  
Agricultural Areas ◽  
The Impact ◽  
Made In

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.

Performance And Exhaust Emission Characteristics Investigation of Compression Ignition Engine Fuelled With Microalgae Biodiesel And Its Diesel Blends

2021 ◽  
Author(s):  
Bhojraj Kale ◽  
Sewan Das Patle ◽  
Vijay Khawale ◽  
Sandeep Lutade
Keyword(s):  
Agricultural Land ◽  
Plant Biomass ◽  
Exhaust Emission ◽  
Emission Characteristics ◽  
Compression Ignition Engine ◽  
Atmospheric Pollutant ◽  
Climate Risks ◽  
Crop Area ◽  
The Impact ◽  
Ci Engines

Abstract Biofuels extracted from plant biomass can be used as fuel in CI engines to lower a hazardous atmospheric pollutant and mitigate climate risks. Furthermore, its implementation is hampered by inevitable obstacles such as feed stocks and the crop area required for their cultivation, leading to a lack of agricultural land for the expansion of food yields. Despite this, microalgae have been discovered to be the most competent and unwavering source of biodiesel due to their distinguishing characteristics of being non-eatable and requiring no cropland for cultivation. The objectives of this paper was to look into the potential of a novel, formerly underappreciated biodiesel from microalgae species which could be used as a fuel substitute. Transesterification is being used to extract the biodiesel. Microalgae are blended with petroleum diesel in percentage to create Microalgae Blends (MAB) as needed for experimentation. The impact of biodiesel on performance as well as exhaust emission attributes of a 1-cylinder diesel engine was experimentally studied. Compared to petroleum diesel, different blend of Microalgae biodiesel showed a decline in torque and hence brake power, resulting in an average fall of 7.14 percent in brake thermal efficiency and 11.54 percent increase in brake specific fuel consumption. There were wide differences in exhaust emission characteristics, including carbon monoxide and hydrocarbon, as the blend ratio in diesel increased. Moreover, nitrogen oxides and carbon dioxides increase in all algae biodiesel blends, but they're still within the acceptable range of petroleum diesel.

The Impact of Urbanization on Agricultural Land Use

2015 ◽  
Vol 2015 (3) ◽  
pp. 60-75
Author(s):  
Elena Belova ◽  
Yuliya Rozenfeld
Keyword(s):  
Land Use ◽  
Agricultural Production ◽  
Agricultural Land ◽  
Arable Land ◽  
Agricultural Land Use ◽  
Economic Relations ◽  
Long Time ◽  
The Subject ◽  
Impact Of Urbanization ◽  
The Impact

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.

scholarly journals Modelling Impacts of a Municipal Spatial Plan of Land-Use Changes on Surface Water Quality—Example from Goriška Brda in Slovenia

Water ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 189 ◽  
Author(s):  
Matjaž Glavan ◽  
Sara Bele ◽  
Miha Curk ◽  
Marina Pintar
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Surface Water ◽  
Land Use Change ◽  
Agricultural Land ◽  
Surface Water Quality ◽  
Erosion Processes ◽  
Phosphorus Loads ◽  
The Impact ◽  
Spatial Plan

Intensive agriculture causes nutrient leaching and accelerates erosion processes, which threatens the good quality status of surface waters, as proposed by the European Union (EU) Water Framework Directive. The purpose of this study was to define the impact of two alternative agricultural land-use change scenarios defined in a Municipal Spatial Plan on surface water quality by using the Agricultural Policy/Environmental eXtender (APEX) model. As experimental area, we chose a small Kožbanjšček stream catchment (1464 ha) situated in the Goriška Brda region in Slovenia. The area, due to favorable conditions for vineyards, is facing increasing deforestation. The change of 66.3 ha of forests to vineyards would increase the sediment, nitrate, and phosphorus loads in the stream by 24.8%, 17.1%, and 10.7%, respectively. With the implementation of vegetative buffer strips as a mitigation measure of the current situation, we could reduce the sediment, nitrate, and phosphorus loads by 17.9%, 11.1%, and 3.1%, respectively, while a combination of the two land-use change scenarios would result in a slight increase of the above-mentioned loads, corresponding to 0.61%, 2.1%, and 6.6%, respectively, compared to the baseline situation. The results confirm that, as we can increase pollution levels with deforestation, we can also reduce water pollution by choosing proper types of land management measures.

scholarly journals Nitrogen Surplus—A Unified Indicator for Water Pollution in Europe?

Water ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1197 ◽  
Author(s):  
Susanne Klages ◽  
Claudia Heidecke ◽  
Bernhard Osterburg ◽  
John Bailey ◽  
Irina Calciu ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Nutrient Management ◽  
European Countries ◽  
Organic Fertilizers ◽  
Mitigation Measures ◽  
Nitrogen Surplus ◽  
Nitrogen Budgets ◽  
Farm Level ◽  
Nitrogen Budgeting

Pollution of ground-and surface waters with nitrates from agricultural sources poses a risk to drinking water quality and has negative impacts on the environment. At the national scale, the gross nitrogen budget (GNB) is accepted as an indicator of pollution caused by nitrates. There is, however, little common EU-wide knowledge on the budget application and its comparability at the farm level for the detection of ground-and surface water pollution caused by nitrates and the monitoring of mitigation measures. Therefore, a survey was carried out among experts of various European countries in order to assess the practice and application of fertilization planning and nitrogen budgeting at the farm level and the differences between countries within Europe. While fertilization planning is practiced in all of the fourteen countries analyzed in this paper, according to current legislation, nitrogen budgets have to be calculated only in Switzerland, Germany and Romania. The survey revealed that methods of fertilization planning and nitrogen budgeting at the farm level are not unified throughout Europe. In most of the cases where budgets are used regularly (Germany, Romania, Switzerland), standard values for the chemical composition of feed, organic fertilizers, animal and plant products are used. The example of the Dutch Annual Nutrient Cycling Assessment (ANCA) tool (and partly of the Suisse Balance) shows that it is only by using farm-specific “real” data that budgeting can be successfully applied to optimize nutrient flows and increase N efficiencies at the farm level. However, this approach is more elaborate and requires centralized data processing under consideration of data protection concerns. This paper concludes that there is no unified indicator for nutrient management and water quality at the farm level. A comparison of regionally calculated nitrogen budgets across European countries needs to be interpreted carefully, as methods as well as data and emission factors vary across countries. For the implementation of EU nitrogen-related policies—notably, the Nitrates Directive—nutrient budgeting is currently ruled out as an entry point for legal requirements. In contrast, nutrient budgets are highlighted as an environment indicator by the OECD and EU institutions.

scholarly journals PENEBARAN IKAN BANDENG DI WADUK JATILUHUR: Analisis Dampak dan Kebijakan Pengembangan

2020 ◽  
Vol 1 (1) ◽  
pp. 1 ◽  
Author(s):  
Sonny Koeshendrajana ◽  
Tenny Apriliani ◽  
Maulana Firdaus ◽  
Zahri Nasution ◽  
Amula Nurfiarin
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Population Dynamic ◽  
Economic Conditions ◽  
Fish Stock ◽  
Management Options ◽  
Aquatic Resources ◽  
Improve Water Quality ◽  
The Impact ◽  
Research Show

Penebaran ikan bandeng merupakan salah satu opsi pengelolaan yang dilakukan untuk memperbaiki kualitas perairan yang semakin menurun di Waduk Jatiluhur. Penebaran ikan bandeng ke perairan waduk Jatiluhur secara sistematis telah dilakukan sejak tahun 2008, namun demikian, manfaat yang dapat dirasakan belum banyak mendapat perhatian. Penelitian bertujuan untuk mengevaluasi secara sosial ekonomi dampak penebaran ikan bandeng di perairan Waduk Jatiluhur sebagai basis pengembangan di masa mendatang telah dilakukan. Penelitian di lapang menunjukkan bahwa penebaran bandeng memberikan dampak bagi kualitas sumberdaya perairan serta kondisi sosial ekonomi masyarakat. Berdasarkan pertimbangan-pertimbangan tersebut maka beberapa rumusan kebijakan yang perlu ditindak lanjuti adalah: (i) mengkaji dampak penebaran ikan bandeng terhadap pertumbuhan ikan budidaya dalam karamba; (ii) melakukan ujicoba penebaran dengan jenis ikan lainnya yang mampu bereproduksi secara alamiah di perairan waduk dan tidak menganggu kestabilan dinamika populasi ikan; (iii) penguatan kelembagaan penebaran ikan, serta; (iv) melakukan sosialisasi lebih intensif mengenai perlunya kesadaran masyarakat untuk menjaga kelestarian sumber daya perairan.Title: Introducing Milkfish in the Jatiluhur Reservoir: Analysis of Impacts and Policies Development.Introducing milkfish is considered one of management options to improve water quality in the Jatiluhur reservoir. This activity has been systematically carried out since 2008; however, tangible benefits from this activity are less coverage. This research aimed to evaluate socio-economic impacts of milkfish stocking in the Jatiluhur reservoir that can be used as a basis for future fisheries development in this reservoir. Results of this research show that milkfish-stocking in the Jatiluhur reservoir contributed to the improvement of its aquatic resources environment and socio-economic conditions of the society. Based on these findings, several policies recommendation should be followed up and implemented, namely (i) immediately assess the impact of milkfish stocking to the growth of fish cultured in the cage; (ii) stocking different fish species that enable to reproduce naturally in the reservoir waters without disturbing population dynamic of fish stock; (iii) strengthening institution of the fish stocking program, and (iv) intensify dissemination and people awareness to conserve aquatic resources.

scholarly journals The global context of land market liberalization in Ukraine: opportunities and risks for rural development

2021 ◽  
Vol 2021 (3) ◽  
pp. 7-32
Author(s):  
Volodymyr Sidenko ◽  
◽  
Keyword(s):  
Rural Development ◽  
Agricultural Production ◽  
Food Production ◽  
Agricultural Land ◽  
Positive Impact ◽  
Food Prices ◽  
Raw Material ◽  
Land Market ◽  
Land Resources ◽  
The Impact

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.

scholarly journals MODELING OF THE OPTIMAL DISTRIBUTION OF MOTORWAY OVERPASSES ON THE EXAMPLE OF THE A4 MOTORWAY SECTION

2018 ◽  
Author(s):  
Stanisław BACIOR ◽  
Barbara PRUS ◽  
Małgorzata DUDZIŃSKA
Keyword(s):  
Agricultural Production ◽  
Agricultural Land ◽  
Negative Impact ◽  
The Other ◽  
Toxic Impact ◽  
Innovative Method ◽  
Alternative Location ◽  
Under Construction ◽  
The Impact

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%.

scholarly journals Assessment of the Impact of Land Cover Type on the Water Quality in Lake Tondano Using a SWAT Model

2021 ◽  
Vol 56 (1) ◽  
Author(s):  
Moh Sholichin ◽  
Tri Budi Prayogo
Keyword(s):  
Water Quality ◽  
Land Cover ◽  
Agricultural Land ◽  
Assessment Tool ◽  
Swat Model ◽  
Coefficient Of Determination ◽  
Organic N ◽  
Lake Water Quality ◽  
Total N ◽  
The Impact

Lake Tondano is the largest natural lake in North Sulawesi, Indonesia, which functions as a provider of clean water, hydroelectric power, rice field irrigation, inland fisheries, and tourism. This research aims to determine the effect of land cover types from the Tondano watershed on the lake water quality. The Soil and Water Assessment Tool (SWAT) model was used to evaluate the rate of soil erosion and the pollutant load of various land types in the watershed during the last ten years. Rainfall data is obtained from two rainfall stations, namely Paleloan Station and Noonan Station. The model is calibrated and validated before being used for analysis. We use climatological data from 2014 to 2019. The process of the SWAT model calibration and validation was carried out with the statistical formulas of the coefficient of determination (R2) and Nash-Sutcliffe efficiency (NSE). The results show that the potential for pollution load from the Tondao watershed is organic N of 0.039 kg/ha and organic P of 0.006 kg/ha coming from the agricultural land. The results of this study conclude that the fertility conditions of Lake Tondano are at the eutrophic level, where the pollutant inflow is collected in the lake waters, especially for the parameters of total N (1503697.44kg/year) and total P (144831.36kg/year). The SWAT simulation results show deviation between the modeling and field data collected with the value of R2 = 0.9303, and the significant level ≤ 10.

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