scholarly journals Depletion risks of essential trace metals in a transboundary drain and its surrounding soil using GIS techniques

2021 ◽  
Vol 58 (04) ◽  
pp. 1215-1221
Author(s):  
Ambreena Javaid

Hudiara drain, a big sewage water body originating from India, is an important tributary of river Ravi in Pakistan. In present study, role of the drain in build-up/depletion of metal micronutrients Cu, Fe, Mn and Zn in surrounding agricultural lands has been investigated. Soil samples, up to a vertical distance of 1200 m on both sides of the drain and drain water samples were collected and analysed for metal micronutrients. Soil analysis results were interpolated by using the best optimized interpolator to generate continuous variation of the selected metals. Further patterns have been identified using proximity stat with consecutive neighbouring zones of 100 m extent. Cu and Mn concentrations were higher in some drain water samples, whereas Fe and Zn were found below guidelines in all collected water samples. In adjacent agricultural land the metals did not show uniform dispersal pattern along the drain length. However, vertical pattern of distribution indicated that drain water was controlling Cu and Zn concentrations, positively, whereas it was causing a dilution effect on Fe and Mn build-up in the surrounding agricultural lands.

2021 ◽  
Vol 975 (9) ◽  
pp. 50-56
Author(s):  
V.N. Klyushnichenko

The author considers the issues of using agricultural land in the Russian Federation, which significantly affects the wellbeing of its citizens. The possibility of partial payment of works on the firstcategory lands inventory and complex cadastral works at the expense of funds received through submission of extracts from the Unified State Register of Real Estate is justified. The shortcomings of the existing system of securing rights to immovable property are reflected, which consist in the possibility of depriving their owners of the registered right in court. It is shown that protecting the rights of individuals and legal entities to land plots by the state, as well as improving the living conditions of the population in rural areas are the main directions of developing the agricultural branch and improving the living standards of rural commodity producers. Possible ways of reducing the area of unused agricultural lands are proposed.


2014 ◽  
Vol 787 ◽  
pp. 58-64
Author(s):  
Shu Yao Wen ◽  
Xiao Chun Sun ◽  
Su Yun Chen

Previous studies predominantly degraded organic matter in simulated water samples containing one or two organic components, while a few literatures reported organic matter degradation in natural and actual sewage water samples. This is likely due to the ingredient of surface water or actual sewage coexisted with many kinds of organic pollutants being complex. The relationship among coexisting organic materials is complex during photocatalytic degradation. Moreover, the coexistence of many kinds of inorganic pollutants in natural or actual sewage water samples is also common. Thus, the influence of coexisting inorganic pollutants on degradation is also worthy of study. This work explored these influences of TiO2-bentonite composite catalysts. 8.6%~11.5% sodium dodecyl benzene sulfonate (SDBS) in surface water or clothes laundering drain water was degraded by 3‰ TiO2-bentonite within 6h under 6W ultraviolet light. Under the same conditions, 86.5% of the SDBS in aqueous solution was degraded. The difference was obvious, but the causes were complicated. For example, the influence of , , and on the degradation was discussed. The results show that the influence of on the above degradation was obvious, while and was not obvious. In addition, and were captured by resulting a decrease of degradation speed. Competition of , and SDBS for surface active sites decreased the efficiency of the degradation. Based on these results, pretreatment such as filtering, deposition and impurity removal before actual sewage is degraded could improve the degradation efficiency. Further study, such as on the reasons for efficiency reduction, on new pretreatment methods and on the application of multi-treatment measures, is needed to conduct.


Author(s):  
Tamara Smovzhenko ◽  
Oryslava Korkuna ◽  
Ivan Korkuna ◽  
Ulyana Khromyak

Nowadays, according to decentralization and current legislation (Land Code of Ukraine, Resolution of the Cabinet of Ministers of Ukraine and the Law of Ukraine «On Self-Governance»), the public lands have been transferred to the CTCs since 1 February 2018. In 2018/2019, 788 CTCs received communal ownership of 1.68 ha of public lands. According to the Draft Law «On Amendments to Several Legal Documents of Ukraine on Agricultural Lands Turnover», the consolidated territorial communities become the legal entities and can acquire property rights to agricultural land plots. Therefore, transferring the lands to be used by the newly created CTCs is currently an urgent issue that requires extended scientific and practical research. The paper aims to research the role of land reform in Ukraine and its impact on increase of CTCs’ budget revenues. The stages of land reform and the development of the land reform in Ukraine as well as its implementation strategy are outlined. The disparities of the integrated satellite map and the data of the Land Cadaster of Ukraine in terms of unregistered lands are defined. The amount of a CTC budget’s increased revenues due to the reform is estimated. Statistical data on small, medium, and large farmers and their interest in the land reform are analyzed. The terms of selling the land to foreign investors and conditions of participation in land auctions are examined. The mechanisms of land purchase, selling, and lease in line with the land reform are suggested. Generalizing the presented aspects of the land reform in Ukraine and their impact on economic activity of the newly created CTCs, it can be argued that the process is quite positive and necessary for both communities and businesses in order to get additional budget revenues for CTCs. The land reform improves the living standards of Ukrainian people through the disclosure of the country’s agricultural capacity.


2018 ◽  
Vol 69 (3) ◽  
pp. 688-692
Author(s):  
Lucian Nita ◽  
Dorin Tarau ◽  
Gheorghe Rogobete ◽  
Simona Nita ◽  
Radu Bertici ◽  
...  

The issue addressed relates to an area of 1891694 ha of which 1183343 ha are agricultural land (62, 56) located in the south-west of Romania and refer to the use of soil chemical and physical properties as an acceptor for certain crop systems, with minimal undesirable effects both for plants to be grown, as well as soil characteristics and groundwater surface quality. It is therefore necessary on a case-by-case basis, measure stoc or rect the acidic reaction by periodic or alkaline calculations, the improvement of plant nutrition conditions through ameliorative fertilization and the application of measures to improve the physical state, sufficient justification for the need to develop short and long term strategies for the protection and conservation of edifying factors and the need to respect the frequency of field and laboratory investigations at all 8x8 km grids of the National Soil-Grounds Monitoring System (organized by I.C.P.A.) and completing it with the relevant pedological and agrochemical studies.


Author(s):  
V.V. Tanyukevich ◽  
◽  
S.V. Tyurin ◽  
D.V. Khmeleva ◽  
A.A. Kvasha ◽  
...  

Works on protective afforestation are carried out in order to protect agricultural land from degradation processes, as well as to improve the microclimate of land. The research purpose is to study the bioproductivity and environmental role of Robinia pseudoacacia L. forest shelterbelts in the conditions of the Kuban lowland. The approved and generally accepted methods of forest valuation, forest land reclamation, botany, and mathematical statistics were applied. Plantings were created according to the standard technology for the steppe zone of the Russian Federation. The area of forest shelterbelts is 62.4 ths ha, including 5 % of the young growth (I state class), 80 % of middle-aged forest plantings (II state class), 10 % of maturing plantings (II state class), 5 % of mature and overmature plantings (III state class). Living ground cover is formed by the following species: Koeleria pyramidata L., Poa pratensis L., Festuca pratensis H., Elytrígia repens L., Dactylis glomerata L., and Phlum pratense L. Aboveground phytomass is 100–300 g/m2; height is 25–32 cm. Plantings are characterized by the quality classes: young growth – I and II; middle-aged and maturing – III; mature and overmature – IV. At the age of natural maturity (70 years), the Robinia trunk reaches the average height of 15.1 m with the average diameter of 22.1 cm. The total stock of wood reaches 18, (ths m3), including (ths m3): young growth – 68 (ths m3); middleaged plantings – 14,871 (ths m3); maturing plantings – 2,187 (ths m3); mature and overmature plantings – 1,314 (ths m3). Aboveground phytomass in young growth is 20.2 t/ha; in mature and overmature plantings it is 391.2 t/ha. In the region it is estimated at 17,070 ths t, including (ths t): young growth – 64; middle-aged plantings – 13,753; maturing plantings – 2,032; mature and overmature plantings – 1,221. The share of stem mass reaches 84.5–80.8 %; woody greenery – 4.2–1.5 %; branches – 11.3–17.7 %. Recalculation coefficients of the stock into aboveground phytomass are the following for: young growth – 0.936; mature and overmature forest shelterbelts – 0.929. Phytosaturation of forest shelterbelts varies within 0.314–2.474 kg/m3. Forest shelterbelts have accumulated 8,534 ths t of carbon, which is estimated at 145.1 mln dollars. The sphere of application of the research results is the Krasnodar Krai forestry, which is recommended to create an additional 60 ths ha of forest shelterbelts, which will provide a normative protective forest cover of arable land of 5 % and annual carbon sequestration up to 3.4 t/ha.


1991 ◽  
Vol 56 ◽  
Author(s):  
N. Lust ◽  
B. Muys

In  densely populated areas, such as Flanders, serious conflicts arise due to the  afforestation of agricultural lands. Roughly speaking, three sectors are  involved: agriculture, forestry and nature conservation. These groups do not  always share the same points of view. But even within the different sectors  there are several subgroups with their own interests and approaches.  Generally speaking, agriculture is strongly opposed, forestry has a  relatively diversified meaning, whereas nature conservation is either opposed  or in favour, depending on the region's biological value.     The policy in this matter is not forest friendly. Legislation strongly  hampers the afforestation of agricultural lands. Moreover the subject leads  to a series of ecological problems, which have not really been considered up  to now.


2021 ◽  
Vol 13 (12) ◽  
pp. 6673
Author(s):  
Lidia Luty ◽  
Kamila Musiał ◽  
Monika Zioło

The functioning of various agroecosystems is nowadays shaped by different farming systems, which may impair their functions, as well as being beneficial to them. The benefits include ecosystem services, defined as economic and noneconomic values gained by humans from ecosystems, through supporting soil formation and nutrient circulation, and the impact of agriculture on climate and biodiversity. Their mutual flow and various disturbances depend on the agroecosystem’s management method, which is associated with the type of management of agricultural land (AL) in individual farms. This paper raises a problem of transformation in the structure of three main farming systems in Poland, in 2004–2018, in relation to the implementation of 16 selected ecosystem services and their scale. Special attention was given to organic farming, as the most environmentally friendly and sustainable. The analysis demonstrates the increase in ALs in that type of production during the analyzed period of time. Disparities of transformation associated with the type of agricultural system were noticeable at the regional level, which were presented in 16 Polish voivodeships. The results of the analysis confirm that the organic system, which is an important carrier of various ecosystem services, gained a stable position. Moreover, areas with integrated farming still do not exceed 0.5% of total agricultural lands in such voivodeships. The analysis of factors influencing the deterioration or disappearance of selected environmental services characterizing agricultural systems indicates the need to depart from an intensive conventional management system.


2021 ◽  
Vol 19 (6) ◽  
pp. 1034-1052
Author(s):  
Denis Yu. SAMYGIN

Subject. This article examines the impact of the natural and economic conditions and factors of Russia's regions on the development of agriculture. Objectives. The article aims to assess the role of climate forcing in the development of agriculture. Methods. For the study, I used the binning technique. An author-developed spatial database of Russia's regions for 2017–2019 was used as an information resource. The cadastral value of one hectare of agricultural land was used as an analytical expression of the natural and economic conditions of business activities. Results. The article describes a directly proportional dependence of and relationships between natural-and-economic conditions and achieved results in the production and consumption of quality products per capita. Conclusions. It is advisable to increase the amount of government support for regions with unfavorable production conditions, develop the competitive potential of the majority of farms in relation to products that are profitable for producers and consumers.


Author(s):  
Maria Nedealcov ◽  

Excessive amounts of atmospheric precipitation can cause intense soil erosion, landslides, inundation and floods. Torrential rains have the force to displace and transport soil particles, so the risk of soil erosion becomes real, as many times as atmospheric precipitations have a devastating character. In this context, it is extremely useful to know the particularities of the torrential rains in the current regional climate. At this stage, the Fournier (IF) pluvial aggression index is becoming more and more prevalent. This paper is dedicated to the use of this index with the pluviometric Excess Danger index (IPP) developed at regional level. The results obtained show close concordance between these indices for temporal estimations. Spatial analyzes highlight the role of slopes' orientation in distributing the pluviometric Excess Danger index and slopes' degree of inclination in the case of the Fournier pluvial aggression index. The results obtained are useful in the efficient use of agricultural land and in the elaboration of measures for the improvement of degraded soils.


Ekonomika APK ◽  
2021 ◽  
Vol 317 (3) ◽  
pp. 89-96
Author(s):  
Ihor Yurchenko

The purpose of the article is to reveal the experience of the functioning of the market circulation of agricultural land in Denmark, in order to further implement in Ukrainian practice, the positive and avoid negative aspects of this experience. Research methods. The study used an empirical method (comprehensive assessment of the modern model of market turnover of agricultural land in Denmark); generalization and systematization (construction of the concept and logical-structural model of economic turnover of lands); abstract-logical method (theoretical generalizations and formulation of conclusions). Research results. It was found that the tightly regulated market turnover of agricultural land in Denmark was changed to a more liberal one, with permission to buy land for foreigners, but this not only did not attract investment as expected, but on the contrary, led to even more negative and crisis phenomena in country. The main tools, mechanisms and conditions of land turnover in agriculture of this country are determined. Scientific novelty. The main purpose of regulating the market turnover of land in Danish agriculture has been established. The legal framework of Denmark for regulating the market circulation of agricultural land has been studied. The structural and logical scheme of market circulation of agricultural lands is formed. The provisions on the Ukrainian model of regulating the market turnover of agricultural lands were further developed, taking into account the experience of the studied country. Practical significance. The results of the study of the experience of the Kingdom of Denmark on the market turnover of land, in terms of granting non-residents access to the right to purchase agricultural land, is a clear practical answer and a caveat that should undoubtedly be taken into account in Ukraine. The application of the Danish experience should help to build an effective model of market turnover of agricultural land in our country. Tabl.: 1. Figs.: 1. Refs.: 18.


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