Land Reclamation Research Articles

CURRENT STATUS AND EFFICIENCY OF ABANDONED LANDS RE-DEVELOPMENT IN RIVER BASINS OF SOUTH-WESTERN TRANSBAIKALIA

Complex ecological and economic studies of post-agrarian landscapes in the middle reaches of the Selenga, Chikoy and Temnik rivers were carried out within the boundaries of the Selenga administrative region of the Republic of Buryatia (RB). A map of abandoned agricultural lands has been compiled. A brief description of agroclimatic conditions of the study area is given; the structure of agricultural land, the yield of grain and forage crops, the dynamics of livestock and the load of livestock on pastures and hayfields are analyzed. The reasons for the arable land abandonment are formulated. It was revealed that pastures and hayfields are not excluded from the agricultural use. This is due to an increase in the livestock numbers in households, which are the main agricultural producers in the RB, as well as a shortage of natural forage lands. The species composition and the state of shelterbelt forests are described as an integral part of the ecotopes of post-agrarian landscapes. The main taxonomic indicators of trees are given. The study of shelterbelt forests is topical due to the need for their inventory, lack of maintenance, and the adoption of Federal Laws on protective afforestation and land reclamation. A brief agrochemical description of the state of soils in key areas is given. To assess the effectiveness of arable land reuse, a net operating income (NOI) or rental income was calculated for each grain and grainfodder crop grown in the region under study. It was revealed that oats and spring wheat are the most profitable. Recommendations were formulated for the redevelopment of post-agricultural landscapes, optimization of protective afforestation, and reconstruction of shelterbelt forests

Soil biological fertility evolution in a chronosequence under long‐term rice cultivation after land reclamation in China

AbstractLand use significantly affects soil biological fertility through impacts on carbon (C) and nitrogen (N) cycling. The present study investigated the effects of long‐term rice cultivation after tidal flat reclamation on soil C and N metabolism, microbial biomass and biological fertility. Eighteen composite topsoil (0–20 cm) samples were identified in a chronosequence of coastal reclamation areas (0–700 years old) in subtropical monsoon climate zone, namely tidal flat (T0), salt marsh soil (S10) and paddy soil (P50, P100, P300 and P700). Using ANOVA analysis, mono‐exponential regression model, and multiple linear regressions, soil organic matter (SOM), total nitrogen (TN), cumulative C mineralization content (Ct) and N mineralization content (Nt), basal soil respiration (BSR) and microbial biomass C and N (MBC and MBN) in the P50‐P700 samples were significantly higher than those in the T0 and S10 samples, whereas C metabolic quotients (qCO2) in the P50‐P700 were significantly lower than those in the T0 and S10 samples. The time to steady state for SOM and TN are 357 years and 80 years, respectively; 133 and 221 years for Ct and Nt, respectively; and 318 and 183 years for MBC and MBN, respectively. Also, a soil biological fertility index (SBFI) was calculated on the basis of SOM, BSR, Ct, MBC, qCO2 and qCM. P100‐P300 samples had the highest SBFI score (28.7) and ranked in the class V (very high) of biological fertility, achieving steady‐state conditions after 146 years. SBFI was significantly positively correlated with SOM, TN, MBC, MBN, BSR, Ct and Nt, whereas it was significantly negatively correlated with pH, qCO2 and C mineralization quotient (qCM). MBC and qCM were two independent variables with considerable positive effects on SBFI. Long‐term rice cultivation could facilitate C and N accumulation and enhance biological fertility in soils via microbial activity, especially within 300 years. Our findings demonstrate that rice cultivation has the potential to enhance soil C and N accumulation. Carbon‐related SBFI is suitable for assessing soils under long‐term rice cultivation, mainly because the rice paddy field is an intensive and conservative system.

Host-virus coevolution drives soil microbial function succession along a millennium land reclamation chronosequence

IntroductionGene exchange between viruses and hosts plays an important role in driving virus-host coevolution, enabling adaptation of both viruses and hosts to environmental changes. However, the mechanisms and functional significance of virus-host gene exchanges over long-term scales remain largely unexplored. ObjectiveThe present study aimed to gain insights into the role of viruses in virus-host interactions and coevolution by monitoring virome dynamics along a millennium-long land reclamation chronosequence. MethodsWe collected 24 soil samples from 8 stages of a millennium-long land reclamation chronosequence, including non-reclamation, and reclamation periods of 10, 50, 100, 300, 500, 700, and 1000 years. We characterized their metagenomes, and identified DNA viruses within these metagenomes. ResultsOur findings reveal a significant shift in viral community composition after 50 years of land reclamation, but soil viral diversity reached a stable phase approximately 300 years after the initial reclamation. Analysis of the virus-host network showed a scale-free degree distribution and a reduction in complexity over time, with generalist viruses emerging as key facilitators of horizontal gene transfer. ConclusionThese findings highlight the integral role of viruses, especially generalist types, in mediating gene exchanges between viruses and hosts, thereby influencing the coevolutionary dynamics in soil ecosystems over significant timescales. This study offers novel insights into long-term virus-host interactions, showing how the virome responds to environmental changes, driving shifts in various microbial functions in reclaimed land.

Pasture lands and food supply in the Mangistau region of Kazakhstan under drought conditions: searching for compromises, recommendations

starvation of livestock in drought conditions resulting from pasture degradation. Methods - analysis and generalization of the legislation of Kazakhstan in the field of agriculture and land reclamation, Land Code based on data on the number of livestock in dynamics and share of regions in the overall country indicator. Results - issues of accessibility of pasture lands for grazing and food supply for animals in the Mangistau region were considered, facts of their death due to dystrophy caused by malnutrition were revealed. According to statistics, in 2022 there were 22.8 thousand heads of cattle, which is 4.2% less than in 2021, about 85.7 thousand heads of camels (increase by 6%), 120.5 thousand heads of horses (increase by 6.3%). Due to desertification and deterioration of pastures, the number of abandoned pastures is increasing. Conclusions - Innovative approaches are needed to address sustainable land management challenges, implementing strategies such as rotational plot systems that promote restoration of rangelands, allowing vegetation to rest between grazing periods in mountainous and foothill areas, which in turn maintains soil fertility and contributes to conservation of biodiversity. It is also necessary to grow drought-resistant forage desert plants adapted to climate change, this increases the availability of forage crops, balances livestock diets and reduces the load on ecosystems. The article proposes plans to expand pasture areas and their use, and develop projects in the field of feed production.

Rooted Cutting of Gymnostoma Sumatranum for Land Reclamation in Degraded Ultramafic Forests in Sabah

Gymnostoma sumatranum, a member of the Casuarinaceae family, is a resilient tree species well-adapted to nutrient-deficient soils. In Sabah, it stands out among the three widely distributed Casuarinaceae species, holding promise for land reclamation initiatives in degraded ultramafic forests. This comprehensive study addresses three primary objectives for effective G. sumatranum propagation, 1) sprig selection for rooted cutting, 2) impact of commercial rooting hormones on growth and nodulation, and 3) identification of suitable potting media for seedling development. The results indicated that the middle-part sprig is preferable for rooted cutting, with a higher rooting percentage (75.9%) compared to the upper-part sprig (57.5%). Additionally, the use of Seradix-3 as a growth hormone treatment yields significant improvements in explant length and root production. However, variations in root nodulation, influenced by different treatments, suggested limitations in commercial rooting hormones, with only 31% of rooted explants exhibiting nodulation. This underscores the need for further research to comprehend factors influencing nodulation in this context. In terms of potting media, river sand (R-sand) emerges as the most effective for G. sumatranum seedling development in the nursery stage based on S-index (healthy seedlings = 31.5%) and growth index (Height = 51.14±14.82 mm; N-Branch = 51.14±14.82), emphasising the critical role of proper potting medium selection for optimal seedling growth and survival. The study also highlights previous restoration efforts by the Sabah Forestry Department, utilising G. sumatranum and other pioneer species to restore degraded ultramafic areas in Sabah. Overall, these results contribute to the long-term goal of restoring the functioning capacity of valuable ultramafic ecosystems and promoting sustainable reforestation practices.

Analysis of Land Reclamation Policy and Green Mining Technology on Ecosystem Stability and Mine Productivity in Kalimantan, Indonesia

This study examines the effects of Green Mining Technology and Land Reclamation Policy on Ecosystem Stability and Mine Productivity in Kalimantan, Indonesia. Using structural equation modeling (SEM) with Partial Least Squares (PLS), data from a sample of mining operations were analyzed to test hypotheses regarding these relationships. Results indicate significant positive relationships between both Green Mining Technology and Land Reclamation Policy with Ecosystem Stability and Mine Productivity. The findings underscore the dual benefits of sustainable practices and policy interventions in enhancing environmental sustainability and economic productivity in mining operations.

Feasibility Analysis of Bacterial-Treated Coal Gangue for Soil Improvement: Growth-Promoting Effects of Alfalfa

The long-term storage of coal gangue (CG) mountains causes serious environmental problems such as water and air pollution. Thus, sustainable reclamation practices are urgently needed to minimize the environmental impacts brought by CG mountains. Pikovskaya medium was employed to screen microorganisms, which were subsequently utilized to promote the solubilization of CG. XRF, SEM, XRD, and HPLC techniques were employed to characterize the CG before and after bacterial treatment. In this study, we have successfully isolated and purified a bacterial strain, identified as Stenotrophomonas bentonitica BII-R7, which possesses the ability to facilitate the solubilization of nutrient elements from CG. Factors including initial inoculation ratio, incubation time, CG particle size, CG concentration, pH, and temperature were examined to investigate their effects on the biosolubilization of CG. Furthermore, the mechanism underlying the CG solubilization was also probed. Our data demonstrated that low-molecular-weight organic acids, such as acetic acid and formic acid, may harbor a crucial role in promoting the solubilization of CG. Lastly, we found that Stenotrophomonas bentonitica BII-R7, in conjugation with CG, can increase the alfalfa seed germination percentage and promote the growth of alfalfa. Together, these data provide evidence that bacterial-treated CG can be utilized for soil improvement and land reclamation.

PATTERNS FOR HANDLING EROSION HAZARDS AND LAND CRITICALITY IN THE BAUMATA WATERSHED IN KUPANG DISTRICT

Baumata watershed is located in Kupang district. The land use conditions are mostly forests, paddy fields, with low root depth and play a major role in the process of causing soil damage, accelerating the rate of erosion and increasing the volume of surface runoff. This research examines the current level of erosion hazard in the existing land use of the Baumata Watershed and its area by considering the Regional Spatial Planning (RTRW) of Kupang Regency and its surroundings in the Baumata Watershed. The method used to calculate the rate of erosion is the MUSLE method where the method uses an approach from the surface runoff factor. The data processing uses a Geographic Information System (GIS). The erosion rate watershed is 3,402,685 tons/ha/year with a watershed area of 2,439.35 ha. Land rehabilitation and soil conservation (ARLKT) directions that are appropriate for the conditions of the Baumata watershed are 87 annual crop cultivation areas. 21 % (2,127.42 ha), Seasonal Plant Cultivation Areas 10.67 % (260.38 ha), and Buffer Areas 2.11 % (51.55 ha). The existence of data and information on the magnitude of erosion rates and land criticality in the Baumata watershed in Kupang district can be used to anticipate early landslide disasters in the area. Keywords: Erosion; Land Criticality; MUSLE; GIS.

How does land consolidation affect nongrain production? Evidence from county-level data in Jiangsu Province, China

Using county-level panel data for Jiangsu Province from 2008 to 2018, this study adopted a fixed effect model to analyze the impact of land consolidation on crop planting structure, also considering the moderating effect of distance from the city center and the heterogeneous effect of various types of land consolidation. The results revealed that farmland consolidation and land reclamation had a negative impact on the proportion of grain crops (rice, wheat, and corn) cultivated, which declined by 0.0051 % (0.0069 %), 0.0055 % (0.0124 %), and 0.0101 % (0.0123 %) for every 1 % increase in investment, construction area, and newly added arable land from farmland consolidation (land reclamation), respectively, demonstrating that land consolidation has not prevented, or even encouraged nongrain production expansion. The production conditions of reclaimed arable land and land transfer practices following consolidation may be factors affecting these declines. Notably, the negative effect of land consolidation on crop planting structure weakens when the land is further away from the city center. To ensure food security, priority should be given to follow-up management after land consolidation and rational oversight and guidance following land transfer.

Preparation of technosol based on coal gangue and its impact on plant growth in coal mining area

Coal gangue, a byproduct of coal mining, is traditionally considered a nuisance. Recent research has begun to explore its potential for soil improvement and land reclamation through controlled pot experiments. However, its usage in soil matrices remains below 50% in most studies. To address these issues, this study investigates the preparation and utilization of coal gangue in technosols, with a focus on its impact on plant growth under natural conditions. The study was conducted at the Suntuan coal mine, located in the Huaibei mining area of eastern China. Results showed that technosols prepared with a high coal gangue dosage ranging from 60% to 100% could support optimal growth of maize (Zea mays L.) with low pollution risk. The impacts of the amount of coal gangue and organic fertilizer on the improvement of technosol quality and the promotion of vegetation growth were significant. The preferred preparation method involved a combination of coal gangue, soil, biochar, microbial agent, water-retaining agent, and organic fertilizer at 60:40:1:0.0025:0.01:5. Overall, our study emphasizes the potential of coal gangue for sustainable land reclamation and environmental benefit. Through optimized technosol preparation and effective utilization of functional materials, our research contributes to eco-friendly practices in coal mining areas.

Long-term dynamics of organic matter inputs in sediments of Lake Balkhash, arid Central Asia: Coupled climate and anthropogenic influences

Lake sediments as reservoirs of organic matter (OM) play crucial roles in the carbon burial and carbon cycle on the regional and global scales. However, the long-term history and patterns of sedimentary organic matter (SOM) inputs from various sources and its response to multiple drivers are not well constrained. Here, we demonstrated variations in the source and composition of SOM and the potential regulating factors using the multi-biomarker (n-alkanes, fatty acids, and alcohols) signatures in a core span the last ∼ 250 years from Lake Balkhash. The highest Paq (proportions of aquatic macrophytes) and relatively low short-chain lipid contents in sediments before 1860 CE indicate the dominant OM inputs from aquatic macrophytes and minor inputs from microalgae. This can be attributed to the humid conditions during the late Little Ice Age (LIA). The decreased Paq and the highest CPIH (carbon preference index for high molecular weight) in sediments deposited in 1860 ∼ 1930 CE revealed considerably elevated OM inputs from emergent plants coeval with declined aquatic macrophytes contributions. This pattern of OM inputs was likely caused by large variables of water levels during the climate transition period, promoting the growth of emergent plants and inhibited aquatic macrophytes. In sediments from 1930 ∼ 2016 CE, much higher terrestrial OM inputs and prevailing microalgal OM inputs were reflected by the highest principal components of each source, whereas the lowest Paq indicates minimal OM inputs from aquatic macrophytes. These changes were probably caused by intensification of anthropogenic perturbations, e.g., land reclamation, promoting more terrestrial OM and nutrients transported into the lake. These findings suggested that SOM inputs are highly linked to lake environmental changes and can be profoundly influenced by climate variability and anthropogenic activities, which provides insights into patterns of carbon burial and carbon cycle in lake-catchment systems in arid regions.

Water-use-Efficiency in Spring Mung bean (Vigna radiata L.) as Affected by Fertilizer Combinations and Planting Pattern Under Arid Conditions

This research trial was conducted to evaluate the effect of planting pattern and fertilizer doses on Water-use-Efficiency of spring planted Mungbean (Vigna radiata L.) on sandy loam soil under arid conditions at Main Line Lower Land Reclamation and Research Station, Bhakkar during spring season 2018. The trial was laid out in RCB design with split plot arrangement having three replications. The main plot consisted of four fertilizer (NPK) doses (30:60:15, 60:120:30, 90:180:45, 120:240:60kg ha-1) while the sub plot consisted of six planting patterns viz., 30, 45 & 60 cm (straight sowing) and 30, 45 & 60 cm cross sowing by applying half seed in horizontal direction and remaining half seed in perpendicular direction on sandy loam soil. Two irrigations were applied in a measured amount by the Cut throat flume during the whole life period of crop. Data was collected on number of plants (m-1), plant height, number of branches (plant-1), number of fruit bearing branches (plant-1), number of pods (plant-1), number of grains (pod-1), 1000-grain weight, biological, straw and grain yield. Almost all parameters were significantly affected by fertilizer doses, planting patterns and their interactions as well, except number of fruit bearing branches, number of grains (pod-1) and 1000-grain weight. Statistical analysis of data revealed that maximum grain yield (3180 kg ha-1) with net return Rs.157,312 and BCR 2.61 of spring planted mung bean was obtained by applying fertilizer before sowing @ 60:120:30 kg NPK ha-1 and sowing crop in first week of March in 60 cm apart cross lines by applying half seed in horizontal direction and remaining half seed in perpendicular direction on sandy loam soil under arid conditions.

From waste to soil: Technosols made with construction and demolition waste as a nature-based solution for land reclamation

Population growth has driven an increased demand for solid construction materials, leading to higher amounts of construction and demolition waste (C&DW). Efficient strategies to manage this waste include reduction, reuse, and recycling. Technosols—soils engineered from recycled waste—can potentially help with environmental challenges. However, there is a critical need to explore the potential of Technosols constructed with C&DW for land reclamation, through the growth of native vegetation. The objective of this study was to investigate this potential by studying two Brazilian native tree species (Guazuma ulmifolia and Piptadenia gonoacantha). Technosols were created using C&DW, with and without organic compost and a liquid biofertilizer. A soil health index (SHI) was applied to evaluate the soil quality regarding physical, chemical, and biological indicators of Technosols compared to a control soil (Ferralsol). The results showed that P. gonoacantha plants presented the same height and total biomass in all treatments, while G. ulmifolia plants exhibited greater height and total biomass when grown in Technosols. The enhanced plant development in the Technosols was primarily associated with higher cation exchangeable capacity and nutrients concentration in plant tissues. Technosols with added compost provided higher fertility and total organic carbon. Additionally, Technosols presented higher SHI (∼0.68) compared to control (∼0.38) for both studied species. Our experiment reveals that construction and demolition waste (C&DW) have significant potential to form healthy Technosols capable of supporting the growth of native Brazilian trees. This approach offers a promising alternative for addressing C&DW disposal challenges while serving as a nature-based solution for land reclamation.

A STATE OF ART AND PROSPECTS OF RED MUD MANAGEMENT

The basic data on the global volumes and composition of red mud, which is a highly alkaline waste of the aluminum industry, namely the Bayer process – technology for the extraction and purification of alumina (aluminum oxide) from bauxite are presented. The analysis of the current state of red mud management allows to distinguish the following main directions: physical-mechanical, physical-chemical, biological and combined methods of handling it, which are used in agriculture (chemical land reclamation (increasing soil pH), use as fertilizers); building materials industry (cement, construction mortar, expanded clay, fireclay, bricks, building blocks, ceramic tiles, concrete alkali-acid-resistant products, refractories); road construction (soil strengthening for the lower layers of the road surface, asphalt); production of other materials (sorbents, catalysts, flocculants, pigments, caustic soda, filler for polymer composites); ferrous and non-ferrous metallurgy. Currently, the most common methods of red mud utilization are its direct use, use in the construction materials industry, as well as pyrometallurgical technologies, as a result of which iron or its alloys are obtained, as well as slag, from which alumina, titanium, rare earth metals can be extracted or which is processed into various building materials. The most expedient method of red mud disposal is either direct use of red mud with minimal changes in its properties, or complex processing with maximum yield of target components and minimization of new waste generation. At the same time, one of the promising ways of red mud management can be its biological processing with the help of plants and microbes, which will help reduce the dangerous man-made load from red mud in the territory adjacent to bauxite processing plants. Bibl. 113, Fig. 2.

Biomass allocation and carbon storage in the major cereal crops: A meta‐analysis

AbstractCrop biomass is the reservoir of carbon (C), a valuable input to the soil, thus supporting the soil fauna and enhancing soil health. There are limited studies that compared the major cereal crops for C storage for regenerative agriculture and to optimize C sequestration strategies. The objective of this study was to quantify the extent of variation in biomass allocation and C storage between maize (Zea mays L.), sorghum (Sorghum bicolor [L.] Moench), and wheat (Triticum aestivum L.) for crop production, and C sequestration potential. The study used metadata from 40 global studies that reported on the allocation of plant biomass and C between roots and shoots of the major cereal crops. Key statistics were computed to determine the variability between genotypes for total plant biomass (Pb), shoot biomass (Sb), root biomass (Rb), root‐to‐shoot biomass ratio (Rb/Sb), total plant carbon content, shoot carbon content, root carbon content, total plant carbon stock (PCs), shoot carbon stock, root carbon stock, and root‐to‐shoot carbon stock ratio (RCs/SCs). Maize exhibited the highest variability for Pb (with a coefficient of variation [CV] of 31.2% and a mean of 4.2 ± 1.3 Mg ha−1 year−1), followed by wheat (CV of 24.2% and a mean of 1.5 ± 0.4 Mg ha−1 year−1) and sorghum (CV of 16.8% and a mean of 2.0 ± 0.8 Mg ha−1 year−1), respectively. A similar trend was observed for PCs, with maize (CV of 40.1% and mean of 1.6 ± 0.7 Mg ha−1 year−1) showing the highest total plant C stock variability, followed by wheat (24.4% and 0.2 ± 0.1 Mg ha−1 year−1) and sorghum (16.3% and 0.9 ± 0.3 Mg ha−1 year−1), respectively. Maize (with a CV of 24.4% and mean of 0.1 ± 0.03 Mg ha−1 year−1) exhibited the highest variability for Rb/Sb, while wheat (30.92% and 0.2 ± 0.05 Mg ha−1 year−1) exhibited the highest variability for RCs/SCs. Correlation analysis revealed the following significant associations: Pb and mean annual temperature (MAT) (r = −0.47), and Sb and MAT (r = −0.43), and Pb and mean annual precipitation (MAP) (r = −0.34), and Sb and MAP (r = −0.30). Rb had a strong, significant positive correlation with MAT (r = 0.72) and MAP (r = 0.85). The meta‐analysis revealed that maize and sorghum have the highest variability for Pb and plant carbon stocks, while wheat exhibited the highest variability for the below‐ground biomass and carbon stocks. The data aided in crop selection and suggested that the best cultivars could be developed and identified for production and C sequestration potential for cultivation by farmers, land rehabilitation, and climate change mitigation.

Assessing Ecological Impacts and Recovery in Coal Mining Areas: A Remote Sensing and Field Data Analysis in Northwest China

In the coal-rich provinces of Shanxi, Shaanxi, and Inner Mongolia, the landscape bears the scars of coal extraction—namely subsidence and deformation—that disrupt both the terrain and the delicate ecological balance. This research delves into the transformative journey these mining regions undergo, from pre-mining equilibrium, through the tumultuous phase of extraction, to the eventual restoration of stability post-reclamation. By harnessing a suite of analytical tools, including sophisticated remote sensing, UAV aerial surveys, and the meticulous ground-level sampling of flora and soil, the study meticulously measures the environmental toll of mining activities and charts the path to ecological restoration. The results are promising, indicating that the restoration initiatives are effectively healing the landscapes, with proactive interventions such as seeding, afforestation, and land rehabilitation proving vital in the swift ecological turnaround. Remote sensing technology, in particular, emerges as a robust ally in tracking ecological shifts, supporting sustainable practices and guiding ecological management strategies. This study offers a promising framework for assessing geological environmental shifts, which may guide policymakers in shaping the future of mining rehabilitation in arid and semi-arid regions.

Rehabilitation of Agricultural Land and Ecosystems Around Dams Using Modern Agricultural Techniques

Rehabilitation of Agricultural Land and Ecosystems Around Dams Using Modern Agricultural Techniques

Evaluation of the Success of Planting in the Rehabilitation of a Watershed Area in Sei Lesan Protected Forest, Indonesia

The high level of community activity in using river watershed land has resulted in the exploitation of land around the watershed which has resulted in a decline in soil quality and caused land degradation along the river flow, therefore areas along the river flow require land reclamation so that the natural balance around the watershed is maintained. Reclamation is an activity that aims to repair or organize the use of land that has been disturbed as a result of inappropriate environmental processing business activities so that it can function and be efficient according to its intended purpose. The research aim is to evaluate the level of success of planting in the rehabilitation process of PT Berau Coal in the Lesan River Protected Forest. The research was carried out in the Sei Lesan Protected Forest Area in the Segah Watershed, Kelay Sub Watershed in Kelay District, Berau Regency, East Kalimantan Province, Indonesia from July to August 2022. This research used systematic sampling with the random start method, namely plot measurement, The first measuring plot is created randomly and subsequent measuring plots are created systematically with a sampling intensity of at least 5%. The results of the research show that the level of plant growth in watershed rehabilitation activities at PT Berau Coal Watershed Rehabilitation was declared successful with a plant survival percentage value of 78.24%, and the planting results in the PT Berau Coal Block C watershed rehabilitation area were very good with a percentage of healthy plants of 76.08%.

LEGAL PROVISION OF SOIL (LAND) MELIORATION IN UKRAINE

Melioration is a powerful factor affecting the soil and soil cover, which changes the direction, periodicity and speed of soil processes and regimes, and leads to a gradual transformation of soils. The evolution of soils under the influence of various types of land reclamation is characterized by varying degrees of changes in chemical, physico-chemical, and agrophysical properties, and in the case of the complex application of various types of land reclamation, high agricultural culture acquires a positive direction, improving soil properties. In the case of a violation of the comprehensive implementation of meliorational effects and agrotechnical measures for the cultivation of agricultural crops, low resource provision, a negative balance of organic substances and an imbalance of macro- and microelements can be formed in the soil. Another determining factor in the change in the purpose of melioration effects on the soil is the transition to the ecological imperative of the agrosphere. This direction is the strategic goal of land reclamation in the foreseeable future, which is of great importance for Ukraine, as the world's leading agrarian state. Solving the problem of investments in the field of soil meioration, which arose due to the disorganization of the legal management of soil and land resources in the conditions of increased natural and anthropogenic loads, global climate changes, violation of the structural and landscape organization of the territory and technical requirements in the system of balanced land use, is gaining increasing relevance, perspective and public demand A feature of law-making practice in Ukraine are numerous environmental laws and departmental regulations, but their implementation is too slow. One of the areas of implementation of the provisions and requirements established by regulatory legal acts in the field of soil reclamation is the development of a regulatory and methodological framework in this field. To ensure the unity and effectiveness of the implementation of regulatory documents at different levels, it is necessary to develop and approve lists of documents, in particular standards, which, in the case of voluntary application, are proof of compliance with the requirements of the current legislation on land reclamation, their use and monitoring. Along with the existence of existing laws, it is necessary to adopt already developed draft laws "On soils and their fertility", "On soil monitoring", "On the removal of degraded and unproductive lands for conservation", "On soil insurance". The Law of Ukraine "On Land Leasing" needs to be revised, which needs to be supplemented in the direction of soil protection obligations on the part of tenants by increasing the minimum lease terms and improving the economic mechanism for stimulating the sustainable use and management of land resources, including their protection from degradation. Keywords: soils, melioration, soil protection, legal support.

ANALYZING THE SOCIO-LEGAL DYNAMICS AND IMPACT ASSESSMENT OF LAND ACQUISITION IN BANGLADESH: A COMPARATIVE PERSPECTIVE WITH INDIAN LAWS AND GLOBAL BEST PRACTICES

Land acquisition has continued to be a major concern in Bangladesh, a densely populated country, because of the nation’s limited land resources and the value of land to people’s livelihoods. There is a great deal of hardship and discontent as a result of inadequate land acquisition and rehabilitation policies, which have left the displaced with insufficient compensation and rehabilitation. This article compares and contrasts the land acquisition laws of India and Bangladesh, taking a critical look at both countries’ current legal frameworks. Although recent legislation has been introduced in both countries, Bangladesh’s framework is insufficient to protect the rights and interests of affected landowners. The Acquisition and Requisition of Immovable Property Act 2017 of Bangladesh has also fallen short of international standards on the acquisition process. In order to support sustainable growth and protect landowners’ rights, this article argues for the creation of a transparent legal framework and prudent policies. Based on global experiences and best practices, the paper offers a series of suggestions to improve the process of acquisition and guarantee equitable treatment for all impacted parties. Recognising the critical role of land acquisition in Bangladesh’s development trajectory and its profound impact on the livelihoods of millions, this article underscores the urgency of reforming the existing land acquisition law. This analysis contributes to the ongoing discourse on land acquisition in Bangladesh with the objective to establish a more equitable balance between public interests and the rights of landowners, ultimately benefiting society as a whole.