Rapid Land Assessment for Salt Farming Development in the Coastal Area of the Special Region of Yogyakarta, Indonesia

The government of Indonesia has faced several challenges to its goal of achieving salt self-sufficiency, necessitating the formulation and implementation of strategic steps to increase salt production. Among its islands, Java has a great deal of potential for salt production, as does the Special Region of Yogyakarta, where the government has initiated salt farming development as part of its coastal community empowerment program. This study aimed to (1) evaluate the land suitability of existing salt farms and (2) identify potential sites and make a productivity estimation of salt farms in the Special Region of Yogyakarta, with the broad objective of demonstrating a rapid land assessment for salt farming development using the combination GIS and field survey. The approach was carried out in three phases; i.e., the analyses of land availability, land characteristics, and land recommendations. On-screen digitizing using GIS was applied to identify land availability through several data sources (satellite imagery and a land-use map from the Indonesian topographic map). This process led to the discovery of 19 sites. Land characteristics and land recommendations analysis were carried out in those sites, resulting in multiple land suitability classes, mostly in the S2 class (moderately suitable). Several impediment factors, such as wind, material texture, and temperature, were also identified, along with other obstacles including high tide and tsunami exposure. In terms of supporting the Indonesian salt self-sufficiency program, these results are significant, with salt productivity estimations of the potential sites meeting the target set by the Ministry of Marine Affairs and Fisheries of Indonesia.

Improving the methodology of cadastral land assessment

Methodological tools for improving the existing methods of cadastral land valuation are described. The basis of its development and improvement of objectivity is the ecological paradigm, the conceptual novelty of which consists in the cost accounting of changes in productive properties and at the same time the ecological state of arable land as a result of annual cycles of economic use. A conceptually new way of forecasting the potential costs associated with the cultivation of crop products has also been developed. It is based on the economic and mathematical models created by the author.

Development and use of gis database for tasks of normative monetary evaluation of land of settlements

The paper presents the results of research on the development of a GIS database for the tasks of normative monetary valuation of lands of settlements and highlights the applied aspects of its use on the example of Lychanka village, Dmytriv territorial community, Bucha district, Kyiv region. An algorithm for developing a GIS database for normative monetary valuation of settlement lands is presented. The presented estimation algorithm allows to carry out with high accuracy normative monetary estimation of settlements, to carry out its automated updating on a certain date, to receive necessary information on request, to carry out analytical operations and construction of specialized estimation maps. The development of the GIS database involved the implementation of two stages. At the first stage of formation of the initial land assessment base, the attribute table included data from the Public Cadastral Map of Ukraine on land plots within the settlement by the following items: cadastral number of land plot, area, form of ownership, purpose and functional use of land plot , the number of the cadastral zone in which each land is located, the number of the land assessment area of the settlement, the value of the base value of land, the value of the zonal coefficient (Km2), the coefficient characterizing the functional purpose of the land (Kf), information on the location (street name). The second stage involved the calculation of the value of the normative monetary valuation of each of the 1279 land plots and was performed using the built-in Arc Map function "Calculation of numerical values". After the development of the GIS database, the testing stage of the developed land assessment database was performed, which involved the use of various query execution, geospatial analysis, the use of buffering functions, topological overlay (intersection). As a result of the analysis, the following maps were constructed: "Influence of local factors on the distance of land from the center of the settlement", "Influence of local factors on the distance of land from highways", "Influence of local factors on the environmental situation", "Influence of local factors on security electricity", "Influence of local factors on the distance from paved roads", "Influence of local factors on the provision of centralized water supply", "Influence of local factors on the provision of centralized sewerage", "Influence of local factors on the provision of centralized gas supply", "Map plots according to the results of normative monetary assessment" , "Map of the establishment of buffer zones by the value of local coefficients" , "Map of coastal protection strips around water bodies with the allocation of zones of their intersection with land". Due to the application of special functions of geospatial analysis available in the GIS environment, examples of development of highly informative cartographic materials in the form of special pricing zoning of the territory of the settlement are shown. The expediency of the application of the GIS database for the tasks of monitoring the quality of land, compliance with their legal regime and the possibility of monitoring the implementation of fiscal obligations by landowners and users.

ASSESSMENT OF AGRICULTURAL LAND SOILS of LVIV REGION

The basis of agricultural land assessment (soil rating, economic land assessment, normative monetary assessment of land) is the properties of agricultural soil groups (141 agricultural groups) within 11 natural-agricultural districts of Lviv region. The structure of the soil cover of Lviv region is dominated by sod-podzolic soils (17.9%), brown soils, mountain-forest (14.0%), dark gray podzolic soils (12.1%). Typical low-humus black soils (78.6%), podzolic black soils (75.2%), and black-meadow soils (66.9%) are characterized by the highest indicators of agricultural development. Quite significant agricultural development, due to large-scale drainage reclamation, is characterized by hydromorphic soils: meadow-swamp (94.7%), swamp (84.2%), peat-swamp (82.5%), lowland peatlands (72.1). The most significant disadvantage of rating is the use of outdated information about natural and acquired soil properties, which do not correspond to the current state, do not reflect the quality of soils. In order to improve land assessment indicators, it is advisable to conduct soil research on all land plots. The weighted average rating of soil quality of agricultural lands of the region is 26 and has significant fluctuations in terms of natural-agricultural areas (NAA): 48 points for Zolochiv and 10 for Turkiv, which is due to the structure of agricultural groups in these areas and their diagnostic indicators. Dark gray podzolic and degraded, black soil podzolic and slightly degraded (75 points) and black soil crushed on the eluvium of dense carbonate rocks (76 points) have the highest rating of arable agricultural groups in Lviv region. Economic assessment of land was carried out in the conditions of the collective farm-state farm system of land use at approximately the same cost per unit of production and therefore in modern conditions of diversity of agricultural entities they do not reflect the real situation and require significant improvement. The introduction of land reform in Ukraine has facilitated the monetary assessment of lands, which is determined by their location within a certain NAA, the composition of lands and the rating scores of the quality of agricultural groups of soils within them. The highest cost of arable land in Borshchovytskyi and Zolochivskyi NAA districts (56.3 thousand UAH and 61.6 thousand UAH per 1 ha, respectively) (agro-group 100 d, e). UAH The highest cost of hayfields in Zolochiv SSR district - 20.3 thousand UAH per 1 hectare (agrogroup 133d) The highest value of 1 hectare of pastures in Sambir-Zhydachiv NAA district - 16.7 thousand UAH (agrogroup 18c). Given the complexity and high cost of large-scale soil surveys within the state, it is advisable to conduct soil research on all land plots involved in civil relations (lease, sale, mortgage, gift, inheritance, mine), which will establish the real state of soil cover within their limits, calculate real assessment and, in the future, update information on the main means of labor in agriculture and forestry. Key words: soil resources, agrogroups, natural-agricultural areas, rating of agrogroups, normative monetary assessment of soils.

Assessment of Producing Abilities of Farmland in a Limited Water Supply Environment of Uzbekistan

This article is investigated the calculation of the natural soil productivity of agricultural land plots in the current conditions of limited water supply in the Republic of Uzbekistan, which is considered one of the developing countries of Central Asia, i. e., it studies both theoretical and methodological aspects of determining the soil assessment and issues of economic land assessment based on it. That is why the rational and efficient use of irrigation water in today’s restricted distribution is one of the most important issues for any economy, and it is important to consider the evaluation of soils and economic evaluation of irrigated land, a land assessment, the positive solution of a number of economic issues.