Capacity Of Land Research Articles

Utilisation of remote sensing and geographic information system for compiling of agricultural land resources database in sragen regency

Availability of accurate information on agricultural land resources in Indonesia is important. An alternative method is needed to provide agricultural resource information quickly and accurately. The use of remote sensing and Geographic Information Systems (GIS) is expected to be an alternative method as a basis for compiling a database of agricultural information resources, specifically carrying capacity of agricultural land. Availability of a database of carrying capacity of agricultural land is important, to realise sustainable development, spatial planning must be based on environmental carrying capacity. The research objectives are (1). Compile the database for carrying capacity in Sragen Regency (2). Analysing the utilisation of remote sensing and GIS as the basis for compiling a database of carrying capacity for agricultural land in Sragen Regency. The main data source of the research is satellite imagery. Data collection methods used are image interpretation, field observations, interviews, and documentation. The research approach is used spatial description. The results of the study are: (1) The compilation of a database of land carrying capacity of Sragen Regency (2). Remote sensing satellite imagery and GIS can be used as the basis for compiling the database for the carrying capacity of the agricultural land in Sragen Regency.

Environmental Carrying Capacity for Food Availability in Pandeglang Regency, Banten Province

Environmental Carrying Capacity is the ability of the environment to support the life of humans and other living creatures and the balance between the two. Food availability and agricultural land are variables to quantify the carrying capacity of the environment for food Availability. This study aimed to analyze the carrying capacity of the field and agricultural land for sustainable food availability in Pandeglang Regency and to analyze how food availability is in Pandeglang Regency. The study used the quantitative methodology approach with literature. The results of the study showed environmental supporting capacity in Pandeglang Regency in all sub-districts, the availability of food produced from the area of agricultural land be exceeded the need or demand for food. This means that Pandeglang Regency has the potential to achieve food Availability and food independence. The carrying capacity of the environment, in this case is the carrying capacity of agricultural land, could be managed properly to meet the food needs of the entire population and able be developed to obtain a surplus in food production. The achievement of sustainable food Availability in Pandeglang Regency is determined by environmental management, especially the optimization of food and land carrying capacity in the local area.

Land suitability assessment for improved land use planning in selected watersheds of Haryana

Aim: The current study aimed to evaluate the capacity and suitability of land for semi-arid region of Haryana in selected watersheds to identify the major limitations of crop production. Methodology: The study was carried out in Bhiwani district of Haryana in 2017 where eight typical pedons (P) representing four micro-watersheds viz., Motipura (P1 and P2), Sainiwas (P3 and P4), Jhumpa (P5 and P6), Budhsheli (P7 and P8) were studied. Results: The studied pedons were neutral to alkaline in reaction (pH 6.87-9.10), non-saline (EC 0.02-0.21 dS m-1) and low in organic carbon (OC) (0.06-0.27%). Available N, P, K and S were low (42.00-189.00 kg ha-1), low to medium (4.20-17.10 kg ha-1), low to high (62.20-326.50 kg ha-1) and low (0.40-19.20 mg kg-1) in the studied pedons, respectively. Soils were deficient in available Fe and Zn but marginal to sufficient in available Mn and Cu. Interpretation: Soils were classified as IIsf and IIItsf and S3s and N1s according to LCC and irrigation suitability, respectively. The pedons were found suitable (S1) to moderately suitable (S2) for guar (cluster bean), oilseeds (mustard), moderately suitable (S2) to marginally suitable (S3) for pearl millet, gram and forestry, and marginally suitable (S3) for cotton and wheat. Key words: Land suitability, Nutrients, Pedon, Semiarid, Watershed

Analysis of land resources balance in Nusa Tenggara Timur Province

Land is an abiotic component that plays a role in providing space for human activity. Land utilization and land use will always be related to population development. If the population continues to grow, the need for land will continue to increase which means the population pressure on the land will also increase, while the land has limited properties. Nusa Tenggara Timur province is a province that has a population of about 4.3 million people with a total area of approximately 4.9 million hectares of which 1.7 million hectares are forests. This research is conducted with the aim of knowing and analyzing land-based resource balance of land resources in the province of East Nusa Tenggara so that it can be concluded about the supporting power of land in East Nusa Tenggara province. The balance of land resources in 2007-2012 and 2013-2017 showed that there was a reduction in an agricultural land area of 11,162 Ha, while non-agricultural land increased by 9,962 Ha. Agricultural land is reduced in the form of plantation land, while the increase in the field of rice fields, moor, and fields. The support of East Nusa Tenggara province has decreased by 0.01 annually due to increasing population. Urban areas such as Kupang City have a lower value for land capacity (DDL) than rural areas.

A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation

Landing gear is a key load-bearing structure of aircraft during ground operation, and the landing capacity of landing gear is determined by the performance of buffer. To solve the problem of buffer failure caused by insufficient static sealing of a rubber ring at groove side, a new structure of a butterfly rubber ring is proposed by analyzing the factors affecting sealing performance of the rubber ring. First, the constitutive equation of rubber material is derived based on the theory of hyper-elasticity, and the material parameters are obtained by fitting the experimental data. Then, by analyzing the simulation method of installation mode and installation stroke, the simulation method suitable for calculating the sealing performance of the rubber ring is established. The linear fitting formulas with Pearson coefficient greater than 0.92 are used to discuss the influence of pre-compression rate and hydraulic pressure on the sealing performance of the rubber ring. Compared with O-ring, the contact pressure of butterfly-ring is increased by 30% in assembly state and 14% in working state. The results show that the butterfly rubber ring has excellent static sealing performance. It is concluded that improving the configuration of the sealing ring can solve the insufficient unilateral sealing of the hydraulic buffer.

Study on Relative Carrying Capacity of Land Resources and Its Zoning in 31 Provinces of China

Land carrying capacity is an important indicator to quantitatively assess and judge the extents of sustainable economic developing and coexistent harmonizing between human and nature. The significance of land carrying capacity has been highlighted recently by the Sustainable Development Goals (SDGs) of the United Nations, which set clear requirements for arable, construction, and ecological lands. Theories and models of land carrying capacity, however, are suffering from the interference of artificial parameter setting and poor applicability. This paper attempts to overcome these limitations and propose a single factor assessment of the carrying capacity of cultivated land, construction land, and ecological land in terms of the relative carrying capacity from the perspective of a single factor assessment. Through mutual comparison, we found that the deviation caused by simulated parameter setting has been eliminated, and the relative status of each province and/or region in China has been obtained, which could provide a reference for the management and utilization of land resources. We argue that China can achieve basic self-sufficiency in both space capacity and food production without placing pressure on the global sustainable development. The results also indicate that carrying capacity state of the advanced development areas such as the eastern coastal region is relatively poor, while the carrying capacity state of the western region is relatively good.

Degradation of agricultural land: Evidence from non-farm livelihood sites in Ogun state, Southwest Nigeria

ABSTRACT In Nigeria, non-farm livelihood activities are becoming rampant in agrarian communities, thereby reducing land capacity to support agriculture. This study examines effect of non-farm livelihoods on agricultural land. A multi-sampling technique was used to sample160 rural households. Soil samples, Geographic Information System (GIS) coordinates and Landsat images were obtained. Data were subjected to statistical, GIS, chemical analyses. Findings revealed that sand mining (88%), rock mining (63.1%) and tree felling (76.9%) were the main non-farm livelihoods on agricultural land for about two decades. Soil analyses revealed that soil nutrients were lower at livelihood site; with nitrogen (0.050-0.150%), sodium (0.1-0.3cmolkg-1), and calcium (2-5cmolkg1). Result showed that matured forest reduces to 9.39% in 2016 but was 15.12% in 2000. It is recommended that degraded land should be improved, people should be educated on the detrimental effect of degradation, and their activities should be monitored to avert further degradation of agricultural land.

The Effect of Land Management on the Retention Capacity of Agricultural Land in the Conditions of Climate Change – Case Study

The Effect of Land Management on the Retention Capacity of Agricultural Land in the Conditions of Climate Change – Case Study

Evaluating the status of gross and net food availability in special reference to carrying capacity of land of Sikkim

In Sikkim, because of vast variation in altitude within short distances and uniqueness of diverse ecological conditions, it supports the cultivation of a large variety of food crops. Even though, the livelihood and economy of the people of Sikkim is still unsustainable. Therefore, an attempt was made to analyse gross and net food availability. For this various secondary data were collected and gross and net food availability was calculated in terms of calorific and monetary value. Carrying capacity of land in terms of gross and net calorific and monetary values was also calculated and analysed. The result shows that the gross and net food availability in Sikkim is very less in commensurate to the existing population. The productivity of food crops has been improved, but the area under it has decreased. The agricultural economy on a whole has been gradually moving from subsistence to commercial orientation over the past three decades, and therefore their sustainability seems comparatively less prosperous in the context of food crops production. Therefore, there is urgent need to look into, for feeding the increasing population.

Land suitability evaluation of crops that form agroforestry in tanralili district maros regency

In Maros Regency, especially Tanralili District, some people do not only farm on paddy fields, but also on land planted with trees, such as gardens in the yard, commonly called agroforestry. This study aims to decided land suitability classes for agricultural and forestry, and analyze limiting factors in developing agroforestry in Tanralili District. The methods used in this study were land survey, soil sampling, laboratory analysis, and matching methods to evaluate land capacity and land suitability for peanut and sengon in 10 land units from work maps. The results of this study show that land capability classes in Tanralili that can be pursued for agroforestry systes are class III and IV, with limiting factors such as slopes, erosion, rocks, soil texture, and rooting condition in sub-class III, and drainage factor in sub-class IV. The actual land suitability class for Peanut is S3 (marginally suitable) and class N (unsuitable), and for Sengon is S2 (moderately suitable), S3 (marginally suitable) and N1 (unsuitable for now). The threat of erosion is a limiting factor that can inhibit optimal growth of peanut and sengon. Nutrition availability affects inhibition of peanut. Water availability and the rooting condition and land preparation becomes limiting factors for Sengon.

Exploring Potential of Public Land Based Revenues to Finance City Infrastructure: An assessment using linear programming for Guntur Municipal Corporation

Municipalities are in search of exploring alternative own revenues to finance urban infrastructure investments in India. As compared to others, monetization of public land is within the functional domain of local governments subject to certain constraints. This study employs a linear programming model incorporating the constraints enforced by state government to assess the potentials of public lands for urban infrastructure capital investments. This approach is largely different from the existing literature, which does not determine the capacity of municipal public lands based on realized revenues. This investigation finds that certain proposed leasing strategies for Guntur Municipality under different simulations as done in this research have potentials to realize 240% more revenues compared to ‘business as usual’ scenario and hence, provide new policy insights for leasing public lands in a revenue optimization perspective. The framework adopted by this helps local governments to estimate the potentials of public lands and establish revenue targets.

ВПЛИВ ДЕГРАДАЦІЙНИХ ПРОЦЕСІВ НА ГРОШОВУ ОЦІНКУ ЗЕМЕЛЬ СІЛЬСЬКОГОСПОДАРСЬКОГО ПРИЗНАЧЕННЯ

Land is an indispensable part of human habitat. In contrast to other modes of production, which wear out during use, lose their useful properties and remove themselves from productive use, natural productive capacity of land is not diminished, but it even increases on the condition of its sustainable use. Consequently, theoretically, it can be considered that land is a lifelong mean of production. Inappropriate land use causes its degradation, reduction of agricultural ground productivity, it means reduction of land price . Agricultural land degradation in Ukraine is quite significant — total area of agricultural land that has destructive impact of water erosion is 13,3 million hectares (32 %), including 10,6 million hectares of arable land. There are 4,5 million hectares with medium — and strongly washed soils within the eroded soil, and 68 hectares completely lost soil horizon. More than 6 million hectares of land systematically suffer of wind erosion. The purpose of the article is to outline the approach to assess the impact of agricultural land degradation on their monetary evaluation, and to measure the loss of land tax, caused by deterioration of land resources as a result of degradation. The following methods were used in solving the tasks: monographic (in the development of scientific publications on environmental and economic principles of land use and protection, regulations on land use, statistical collections); mathematical modeling, economic analysis, determination of relative values, averages, grouping (in the study of factors that cause degradation of land resources). An assessment of the impact of agricultural land degradation on the normative assessment of land and on the land tax was made. The study has demonstrated, that degradation of agricultural land causes significant social-economic damage — reduction of normative monetary evaluation 2,3 times, and annual loss of land tax at the level of 464,5 billion UAH. These indicators make the widespread introduction of measures to combat land degradation and, above all, soil erosion very relevant.

ИСПОЛЬЗОВАНИЕ ПАСТБИЩНЫХ УГОДИЙ ПРИ СОДЕРЖАНИИ СКОТА В ЛИЧНЫХ ПОДСОБНЫХ ХОЗЯЙСТВАХ

The authors of the article consider the institutional framework for regulating the use of rangelands in rural areas for the effective maintenance of livestock on household farms. On the basis of a detailed analysis, the issues of pastures allocated for livestock grazing to personal subsidiary farms have been identified. An assessment of the pasture lands of rural settlements and standards of the maximum permissible load of grazing of agricultural animals on the area of pasture turnover for the natural-agricultural zones of the republic and types of livestock are presented. The regions with a shortage of pasture lands and high concentration of the rural population, located in the foothill-desert-steppe, foothill-desert and mountain zones, incompliance of livestock kept in households and the level of pasture provision are identified. Areas with a low load of livestock on pasture land are identified. In the desert and semi-desert zones, there is an insufficient number of livestock for effective near-village pasture rotation. The ratio of the standards of need and provision in pasture fodder in different natural and agricultural zones by species composition of livestock is shown. The degree of use of pasture lands in various forms of economy of the republic is indicated, pastures assigned to peasant (private) farms are used with full load. Non-state agricultural enterprises within the boundaries of land use have a reserve potential of unused pastures with an area of 10.4 mln ha. A formula for determining the productivity and capacity of pasture lands for organizing cattle grazing is presented. Recommendations and schemes of pasture rotation are presented to preserve the productivity of natural forage lands of near-aul territories of zonal types of pastures, to radically improve the natural-economic zoning of Kazakhstan.

China’s rural revitalization and development: Theory, technology and management

The urban-rural transformation from dichotomy to integration is a gradual process. Like rural areas in many countries, Chinese rural society is experiencing a decline in all spheres due to depopulation, aging, lack of economic opportunity, and so on. Aiming at solving the serious rural issues, China proposed the implementation of a rural revitalization strategy and the promotion of an integrated urban-rural development for the first time in 2017. This proposal marks the transformation of the urban-rural relationship, and the integrated urban-rural development reflects a significant conceptual change. Researches on issues of rural decline are urgently needed to determine the most effective method for rural revitalization and development from the perspective of the urban-rural dynamics. In this context, this paper focuses on studying the theory, technology and management of rural revitalization and development. We construct a theoretical framework for urban-rural integration based on population-land-industry-right between the urban and rural systems, regarding land engineering for land capacity building as the technical support and the rural land system reform and reconstruction as the policy support for management. This research will provide theoretical support for the implementation of China’s rural revitalization strategy.

Analisis Daya Dukung Lahan Tanaman Perkebunan di Kabupaten Banggai

Land use plan based on agricultural land support sub-plantation sector can address the needs and availability of a more productive plantation commodity, and economically profitable. This research aims to analyze the availability and needs of the land and determine the supporting capacity of plant land in Banggai Regency. This research was conducted from June to August 2020, used qualitative methods that are analyzed in quantitative decorative where the research covers 12 plantation plant commodities in Banggai Regency. The data used in this study are primary and secondary data from BPS-Statistics of Banggai Regency and Department of Food Crops, Horticulture and Plantation of Banggai Regency in 2020. Data collection is carried out with observation in the field and secondary data tracking from Statistics Center, Banggai District, and The Office of Food Crops, Horticulture, Plantation Banggai Regency. Furthermore, the calculation based on Permen LH No. 17 of 2009, where the Status of Land Support Capacity obtained from the comparison between land availability and land needs until the determination of land support capacity is declared surplus/deficit. The results showed that the availability of land from the 12 highest plantation commodities in Cocoa (143,200 ha), and the low availability of land in Kapuk commodity (24.38 ha). The analysis of the land needs of 12 plantation commodities showed that the commodities that have the highest land are tobacco (905,788.46 ha) and the lowest in coconut commodities (13,979.67 ha). The comparison between land availability and land needs in 12 plantation commodities in Banggai Regency, obtained by Oil, Palm Oil, Clove, and Cocoa crops is Surplus. This commodity is overloaded, this indicates that the availability of land in Banggai district is able to meet the needs of land to live decently per population.

Spatiotemporal simulation, early warning, and policy recommendations of the soil heavy metal environmental capacity of the agricultural land in a typical industrial city in China: Case of Zhongshan City

Soil environmental capacity and risk warning are the core contents of soil security research. In this study, geostatistical analysis, a material balance linear model, and an environmental load capacity method were selected to simulate the environmental capacities of eight heavy metals (Hg, As, Cr, Cu, Ni, Pb, Zn and Cd) in the agricultural land of north Zhongshan City. Then, based on the capacity data in 2015 as the baseline year, risk early warning assessment was carried out, and the management strategy of soil heavy metal pollution under the goal of “soil security” was proposed accordingly. The results showed that between 2015 and 2035, there was a 1.73-fold increase in the average annual capacity of heavy metals in the soil samples collected in the study area. Generally, the heavy metal environmental capacities showed an upward trend, except for Hg, and the low capacity areas were primarily distributed in the northern plain. The comprehensive risk level was medium, based on the soil heavy metal environmental capacities. Further, the average environmental capacity indexes of Hg, As, Cr, and Pb were all >1, corresponding to no risk. However, those of Ni and Zn were 0.8 and 0.7, which corresponded to mild risk, while those of Cu and Cd were all <0, corresponding to extreme risk. Additionally, it is necessary for the government to consider the main pollution sources when formulating targeted measures aimed at controlling agricultural land heavy metal pollution in industrial cities. The results of this study provide theoretical contributions on early warning of risks related to heavy metal environmental capacity of the agricultural land in industrial cities, and serve as practical reference for speeding up the formulation of agricultural land pollution management policies.

Implementasi Kebijakan Alih Fungsi Lahan Pertanian ke Non-Pertanian di Sleman berdasarkan Perspektif Institusionalis

The increasing population in urban areas results in higher land demand but reduced land capacity. Sleman is an area that experienced a decrease in land quality due to the conversion of agricultural land to settlements. The high rate of land use change which is increasingly spreading has resulted in the government having to intervene in dealing with the problem with the policy of land conversion. However, the reality of the policy is that it has not been able to resolve public problems which are considered to be just formalities. This paper tries to discuss what context and content are capable of influencing land use change policies in sleman with institutionalist perspectives in accordance with Regional Regulation No. 12/2012 on Regional Spatial Planning (RTRW). The results of this paper that the implementation of policies for the conversion of agricultural land to non-agriculture in Sleman in the Institutionalist perspective there are two things that affect the content and policy context. The content is the party whose interests are affected, the types of benefits that can be obtained, the range of changes that can be expected, the position of decision makers, program implementers, and the resources that can be provided. While the context is the power, interests and strategies of the actors involved

Review: Impact of Food and Climate Change on Pastoral Industries

The industrialization of agriculture based on inexpensive fossil fuels allowed for unprecedented levels of food production and population growth, but simultaneously contributed to a threat to food systems and population well-being: climate change. This paper analyses the impacts and adaptations available to the world’s pastoral production systems including potential mitigation and adaptation strategies. The current food system is under pressure to satisfy the needs of the increasing population with already limited natural resources particularly land and water, and now increasingly under pressure due to climate change. Increasing incomes from greater number of people have increased demand for animal source foods. As a result, domestic livestock numbers are rising, particularly in low-income countries with greater dependence on pasture for animal feed. The carrying capacity of pastured land is limited; therefore, increasing animal numbers may cause environmental degradation and loss of productivity from pastoral industries. In some countries, the increasing demand has prompted some to burn forestlands and convert them into crop production, and after the land is degraded into pasture mainly for raising large ruminants. Changes in atmospheric carbon dioxide levels and ambient temperatures are predicted to make a number of changes to the growth of herbage for animals. Several strategies can be implemented to optimize the pasture-based food system, including choosing the right breed, improving reproductive efficiency, improving grazing management, and maintaining an animal feed base. The global challenge is to meet our food production needs while sustaining our environment. Producers in all income categories have a role to play in adapting to these challenges.

Microbially induced carbonate precipitation for wind erosion control of desert soil: Field-scale tests

This study examined the potential of microbially induced carbonate precipitation (MICP) in reducing wind erosion of desert soil. Field tests were conducted on artificial mounds and bare sandy land located in Ulan Buh Desert, Ningxia Hui Autonomous Region, China. Results showed that the MICP method could significantly enhance the bearing capacity and wind erosion resistance of the surficial soil through the formation of soil crusts. The optimal cementation solution (containing equimolar urea and calcium chloride) concentration and spraying volume, were 0.2 M and 4 L/m2, respectively. Under this condition, the soil crusts, with a thickness of 12.5 mm and a calcium carbonate (CaCO3) content of 0.57%, remained intact on the surface of man-made mounds after being exposed to a 30 m/s wind for 2 min. For the sandy land, the soil bearing capacity could reach its maximum of 459.9 kPa (as measured with a 6 mm-diameter handheld penetrometer) within three days, and the depth of wind erosion was approximately zero after 30 days of exposure to the local weather conditions. Furthermore, the biocementation method showed its ecological compatibility at the optimal dosage. Scanning electron microscopy (SEM) tests with energy dispersive X-ray (EDX) confirmed the bridge effect of CaCO3 crystals. Longer-term durability of MICP treatment was evaluated, and the results showed that soil bearing capacity and wind erosion resistance of the sandy land was significantly improved over 180 days. These findings suggest that MICP is a promising candidate to protect desert soils from wind erosion.

Valoración de servicios ecosistémicos para la identificación de estructuras ecológicas metropolitanas: el caso de Cali, Colombia

El objetivo de la presente investigación fue valorar –con base en técnicas de análisis espacial y conocimiento experto– la capacidad de las coberturas de la tierra para proporcionar servicios ecosistémicos (SE) en el sistema socioecológico (SSE) “área de influencia metropolitana de Cali”. De esa manera, fue posible identificar la estructura ecológica metropolitana del SSE en mención, para así establecer una línea base a partir de la cual se podrá identificar en el futuro el nivel de conservación o fragmentación de la estructura ecológica metropolitana. La aplicación de la metodología requirió el uso de métodos de investigación mixtos. En este sentido, i) se definió el área del SSE a partir de la combinación de criterios urbano-funcionales y ecológicos-biofísicos; ii) se definieron los criterios para establecer la unidad de análisis y realizar la clasificación de coberturas de la tierra del área definida a escala 1:25.000; y iii) se realizó la valoración de SE a partir de una consulta a expertos pertenecientes a instituciones de carácter académico, administrativo y científico acerca de la capacidad de proporcionar y demandar SE presentes en las coberturas de la tierra que componen el SSE. Se encontró que la estructura ecológica metropolitana está compuesta por diez coberturas de la tierra naturales y seminaturales, las cuales tienen capacidad de proporcionar SE culturales (nivel alto), de regulación (niveles alto y medio) y de aprovisionamiento (nivel bajo). Además, como era de esperar, se validó la percepción de que la zona plana del SSE –la cual concentra las actividades productivas, económicas y de servicios– es claramente la demandante, mientras que las áreas ubicadas en la periferia–i. e. piedemontes y cordilleras Oriental y Occidental– son las proveedoras. Finalmente, los resultados de esta investigación demuestran una vez más que, desde el ángulo académico, hay maneras novedosas para fortalecer los procesos de formulación de lineamientos para la planificación y gestión ambiental de los SSE de carácter metropolitano a partir de la combinación de información espacial y conocimiento experto.