Land Use Suitability Research Articles

Ecological risks from trace elements in Quaternary agricultural soils of Lebanon- East Mediterranean.

Soil contamination by trace elements (TE) causes health and environmental risks. This work focused on arable lands of Central Bekaa of Lebanon, East Mediterranean. The spatial distribution of TEs in the cultivated soils was mapped. Results showed accumulation of Cr and Ni, in the soil-plant interface layer, exceeding the multifunctional land use (soil threshold I <50 and <40 mg kg-1 , respectively) and controlled land use (soil threshold II-100 mg kg-1 ). The index of geoaccumulation (Igeo) showed no hazards from Zn with moderate to strong contamination from Pb and moderate hazard from Ni, Cu, Cd and Cr. A cross sectional soil sampling from the Litani river to the eastern hill of Terbol showed accumulation of TEs at foot slopes and at river’s banks. Human activities within the plain contribute to further soil contamination with risk of pollutants transfer to food chain. Additional sampling of plant and corresponding soil in hot spots showed TE content in the plant leaves to be mostly within or slightly above the permissible values in wheat and potato. Considering the soil quality regarding chemical pollution is a necessary factor in land use planning for the elaboration of adapted to local soil conditions thresholds of TEs content in the soil for suitable land use, either in agriculture or alternative uses.

Environmental hazards of land use/land cover dynamics using data observation techniques and GIS: case study of Guyuan watershed, China

Agricultural production system is extensively impacted by dynamics of land use. In the present paper, dynamics of land use and land cover (LULC) and environmental factors such as digital elevation model (DEM), slope, vegetation cover, soil type, and aspect were assessed to simulate the potential hazard in the watershed area at the southern part of Ningxia, Guyuan. This area was selected due to its wealthy fertile soils; thus, it provides food for multiple regions. Guyuan, Shilitan, and Yangcao cities were chosen as case studies. Multispectral Gaofen (GF) 2 satellite images and SRTM DEM were processed to produce environmental variables to assess the probable risks. In Shilitan watershed, very dense vegetation showed an increase from 14.6 to 22.1% and in Yangcao from 5.65 to 9.46% at 2005 and 2019, respectively, which protects the watershed area from flood and land degradation. However, spare vegetation recorded a decrease during the investigated period in two watershed areas. Hence, soil with little vegetative cover is more vulnerable to erosion, degradation runoff, and inconsequential water retention. DEM analyses showed that higher degree of segmentation leads to more degradation and damage of agricultural lands which adversely affects food security of the city. Results of the present study help policy makers, planners, and other accompanying development workers to apply the best suitable land use management options to protect Guyuan watershed.

A Review on the Overall Optimization of Production–Living–Ecological Space: Theoretical Basis and Conceptual Framework

The 18th National Congress of the Communist Party of China put forward the optimization of territorial space development patterns as the primary measure of ecological civilization construction, and put forward the goal of “promoting intensive and efficient production space, livable and moderate living space, and beautiful (picturesque scenery) ecological space”. Through literature research and summing induction, this paper combs the research progress of the overall optimization of “Production–Living–Ecological” space (PLES) systematically. It is found that the existing work mainly focuses on the overall optimization of PLES from the perspectives of land-use quality, land-use suitability evaluation, resource and environmental carrying capacity, and comparative advantages. However, due to the lack of understanding of the scientific connotation of PLES, and the imperfect construction of quantitative identification methods and classification system, there are many problems in the technical approaches of the overall optimization of PLES, which remain to be clarified. In the future, the technological approach to the overall optimization of PLES should be guided by the vision of building a beautiful China, with the theory of a human–Earth coupling system as the core, and systematically build a theoretical system and technical framework to identify and optimize territorial space.

Analysis of Land Suitability Based on Area Functions in the Merawu Watershed, Banjarnegara Regency

The decline in the quality of land and the environment is closely related to the increase in changes in land use to settlements as well as to agricultural land that is not in accordance with the spatial layout and function of an area. The purpose of this study is to analyze the suitability of land spatial plans based on the function of the area and analyze the suitability of land use to the function of the area. The method used is the scoring method by assigning a value to the nature of the parameters used in the analysis. The analysis used is Overlay where, the three maps that have been obtained using predetermined criteria are overlapped (overlay), so that the score value of the land unit map is then classified into areas with certain functions. Based on the results of the analysis, the watershed has 3 directions for the function of the area, namely the direction of the protected area function having an area of 17,876.01 ha, the buffer area having an area of 4,599.92 ha and the area for cultivation of seasonal crops and settlements having an area of 839.70 ha.

PEMETAAN KESESUAIAN PEMANFAATAN LAHAN PERKEBUNAN SAWIT (STUDI KASUS : KAB. SOLOK SELATAN, SUMATERA BARAT)

Indonesia is known as an agricultural country because most of the people's livelihood as farmers. The use of land for agriculture and plantations in a sustainable manner requires development planning based on complete data and information regarding the condition, quality and characteristics of the land. How to anticipate the occurrence of mismatches in the use of agricultural and plantation land with the type of plant can be done by determining the plantation land with a predetermined designation so that there are no errors in its use. The purpose of this study was to analyze the suitability of land use for oil palm plantations with soil conditions in South Solok Regency. The availability of spatial information is one of the supporting data in realizing the land use resilience program. Utilization of remote sensing is one way to obtain land spatial information. The method used in this research is land surface temperature, inverse distance weighted, slope and overlay methods. The data used in this study are rainfall data in 2020, Landsat 8 Oli Imagery Data, Shuttle Radar Topography Mission data and soil type data. Analysis of the data in the study carried out overlay techniques on mapping the suitability of land use for oil palm plantations in South Solok Regency. The results of this study indicate that the suitable land (S2) with an area of 68,049, 23 Ha, Fairly Appropriate (S3) with an area of 55,144.91 Ha and Unsuitable (N) with an area of 235,707, 46 Ha for oil palm plantations in South Solok Regency.

Reduced runoff and sediment loss under alternative land capability-based land use and management options in a sub-humid watershed of Ethiopia

Study regionLaguna watershed of the Upper Blue Nile basin, which is representative of drought-prone tropical sub-humid watersheds of Ethiopia. The river of the watershed drains into Lake Tana, one of the largest lakes in Ethiopia. Study focusThis study evaluated the impacts of five alternative land capability-based land use and management options in reducing runoff and sediment loss by integrating observed plot- and watershed-scale data with the Soil and Water Assessment Tool. New hydrological insightsWe modified flow- and sediment-sensitive model parameters based on six best-performing plot-scale land management practices to simulate the runoff and sediment loss of the watershed under five alternative options. The results revealed that alternative land use options could reduce runoff and sediment loss by about 21–30% (from 740 to 517 mm) and 32–83% (from 101 to 18 t/ha), respectively, compared to the baseline data. The simulations of best alternative land management options also decreased runoff by 10–41% and sediment loss by 40–89%. Runoff and sediment loss reductions were estimated to be as high as 72% (from 740 to 210 mm) and 95% (from 101 to 5 t/ha), respectively, when land use and land management options are combined. These results indicate that implementing suitable land use and management practices has the potential to rehabilitate degraded watersheds in the sub-humid Ethiopian highlands and similar environments elsewhere.

Using soil quality indicators to assess their production and ecological functions

The project dealt with an evaluation of the soil quality in the Central Bohemian Region in the Czech Republic. The relevant attributes and characteristics were found regarding the soils in this selected area. Based on the data from soil probes, climate characteristics, soil production function and data on the land use, the characteristics, known as soil quality indicators, were selected. Then the soils were sorted into groups which indicated their suitability for the best land use and planning. The characteristics of the soils that contributed the most to the ecosystem services provided by this part of the environment were chosen as the soil quality indicators. In order to find out how the soils are able to provide ecosystem services, two types of approaches were used – the average score and the total amount of points gained. Maps indicating the soil quality were created using the ArcGIS program. At the same time, research on the differences in the quality in two different layers of the soil was carried out. In most cases, there was a decrease in the soil quality with an increasing depth. The results of this project can be used as a basis for a new soil valuation in the Czech Republic.

Soil Characterization and Classification for Agricultural Land Use Planning: A Study of Semi-arid Rajasthan

Based on morphological, physical, physicochemical and chemical characteristics of soil, six representative soil profiles from the Phulera tehsil of Jaipur district of Rajasthan were studied for soil characterization and classification. Results revealed that the soils of the study area were dominantly dark yellowish-brown in colour, with loamy sand texture having a higher content of sand. These soils were poor in organic carbon content (0.8 to 3.5 g kg-1). The soils were moderately alkaline (pH 7.3 to 8.3) in reaction and non-saline (EC 0.02-1.21 dS m-1). The cation exchange capacity (CEC) in most of the profiles was low (3.99 to 8.32 cmol(p+)kg-1) and calcium (Ca2+) and magnesium (Mg2+) dominated the exchange sites on the colloidal complex. All the profiles were placed under Entisol due to the absence of a diagnostic sub-surface horizon. Due to the ustic soil moisture regime, hyperthermic temperature regime, and higher sand content, the soils were classified as sandy, mixed, hyperthermic Typic Ustipsamments. On the basis of major soil constraints and potentials, suitable land use plans has been suggested.

Variability and correlation of selected soil attributes and maize yield influenced by tillage systems in mountainous agroecosystem

Soil and topographic variability severely influence agricultural productivity and food security in a mountainous agroecosystem. Understanding these soil spatial disparities are important to optimize suitable land use planning and adoption of appropriate conservation practices to ensure sustainable agricultural productivity in mountainous regions. A field survey and sampling of 108 elevation sites were conducted to assess spatial dynamics and influence of prevalent tillage systems on selected soil attributes and on reported maize (<i>Zea mays</i> L.) grain yield (MGY) in mountainous valleys of Pakistan. Measured soil properties were effective soil depth (ESD), soil penetration resistance (SPR), soil bulk density (SBD), fraction of rock fragments (FRF), soil organic matter (SOM), and soil water holding capacity (SWHC). Additionally, the influence of three existing tillage systems—integrated tillage (IT), bullock tillage (BT), and tractor tillage (TT)—on soil properties and MGY were assessed. Research results showed that ESD, SPR, SBD, FRF, SOM, SWHC, and MGY varied from 15.0 to 40.0 cm, 180.0 to 278.0 psi, 0.9 to 1.7 g cm⁻³, 13.2% to 43.5%, 0.6% to 2.9%, 10.5% to 35.6%, and 4.1 to 10.2 t ha⁻¹, respectively. Differences between soil parameters were significant among the sampling sites studied. Soil properties were found to be strongly associated with each other and with the MGY and were grouped through Pearson correlation, principal component analysis, and heatmap. Moreover, significant variation of soil properties was noted due to the tillage systems adopted by the farmers. The ESD (26.8 cm), SOM (1.4%), SWHC (16.9%), and MGY (7.8 t ha⁻¹) were the highest under IT while the SPR (262.8 psi), SBD (1.6 g cm⁻³), and FRF (38.0%) were the greatest with TT compared to the other tillage systems. Findings of this study are imperative for agriculturists, soil managers, land use planners, and policy makers to identify and implement suitable interventions for sustainable use of agricultural lands to bring economic produce while conserving the mountainous agroecosystem and its resources on sustainable basis.

KESESUAIAN LAHAN PERMUKIMAN TERHADAP RENCANA TATA RUANG WILAYAH BERBASIS SIG DI KABUPATEN KEPULAUAN SANGIHE

The problem in this study is related to the number of developments, especially those aimed at their designation, which is not by the existing regional spatial plan. This is because many developments are located in disaster-prone areas, coastal border areas, and protected areas. This also triggers changes in land use that are quite large from time to time. This study aims to determine the use of utilization with a regional spatial plan. This study uses quantitative methods to determine developments based on data in the Sangihe Islands Regency, analyzing image data and knowing the level of suitability of land use with the RTRW. The method of analysis in this study uses a method of spatial analysis based on geographic information systems (GIS) using supervised classification, scoring, weighting, overlay. The variables in this study include land use, spatial planning, and adjustments. The results show that the land area in the Regional Spatial Plan is suitable for land use in particular for an area of ​​3,202.65 hectares and not suitable for an area of ​​17,946.03 hectares from the total area of ​​the existing land use.

Assessing Land-use Suitability of Existing Inclusionary Zoning Projects in the Australian Capital Territory

Inclusionary Zoning (IZ) is a land-use planning initiative taken by governments that either mandates or provides voluntary incentives to achieve a proportion of affordable housing in a development project. This research aims to assess the land-use suitability of the current IZ projects in the Australian Capital Territory (ACT) by comparing them with IZ land-use suitability study findings. A multi-criteria IZ land-use suitability analysis is conducted first to understand the desirable IZ land features while considering sustainable development objectives. Four criteria are selected, including socioeconomic integration, access to jobs, access to public transport, access to green space, and compliance with zoning rules. Results indicate that relatively low suitability of current IZ. We conclude that the assessed low suitability across different IZ projects is driven by the current market-based affordable housing provision approach, which highly relies on private sectors. Nevertheless, the research recognises the need for improving IZ in the ACT through greater collaboration between state government, the federal government, and the property sector.

Assessing Land-use Suitability of Existing Inclusionary Zoning Projects in the Australian Capital Territory

The Journal of Social Inclusion (JoSI) is a peer-reviewed academic journal that will contribute to current knowledge and understanding of the social processes that marginalise individuals, families and communities. The journal will be published bi-annually under the guidance of an International Editorial Advisory Board. The Journal of Social Inclusion (JoSI) is an initiative of the School of Human Services and Social Work, Griffith University.

The Suitability Analysis of Land Use and Building from BIM to Spatial Detail Plan

The development in urban areas will continue to occur, such as the construction of settlements, offices, shops, educational and health facilities, and other supporting facilities. With the development that will always continue to occur in a nation, it will also increase the productivity in its city. The rapid development of urban activities will also followed by high demand for land. This can lead to land conversion. Therefore, it is necessary to use the land to its optimal capacity and manage it wisely in order to produce a quality space that is maintained for its sustainability. Rules and regulations are compiled into a plan in the Guidelines for the Preparation of Detailed Spatial Planning (RDTR). This research conducted in North Gandaria Urban Village because the buildings are divided into three environments, namely densely populated settlements, middle to upper settlements, offices and shops which based on geometrical aspects have various building forms from small to large ratios. Each building has different diverse land and building usages. In this study, land use suitability was identified by manual and digital classification, namely by image interpretation and classifying using the Object Based Image Analysis (OBIA) method on SPOT-7 images which were then superimposed to produce land use maps. In addition, this study utilizes altitude data from LiDAR to complement building spatial data and is processed to BIM. BIM dimensions are made in 3D with Level of Development 100 or equivalent to Level of Details 1 which has a flat roof if converted. From this research resulted suitability of land use and buildings to carry out an analysis related to sustainability and can be used as consideration and input by the policy makers on spatial planning policies. Based on the results of the analysis, it was found that the suitability of land use was 95% classified suitable to spatial detail plan. To determine the suitability of the building in this study, it was seen from the activities of the building and the height of the building. Based on building activities, 9.30% of building activities that are not allowed and another 90.70% are classified as conditionally allowed buildings, allowed, limited alowed and limited and conditional. Meanwhile, based on the height of the building, there are 82.7% of buildings that comply with the spatial detail plan.

Monitoring of Land Use Suitability Based on Detail Urban Spatial Plan Data 2018-2038 (Case study: Gayungan District, Surabaya City)

Land use planning in an area will refer to the regulations that have been established by the City Planning Office of each region. This is because each region has the authority to plan spatial plans in their respective regions. The border area is an area whose land use can be influenced by two different regional regulations. This is because the border area is a special area located on the border between two regions, each of which has spatial planning regulations. Gayungan District is one of the sub-districts included in the Border Area between Surabaya City and Sidoarjo Regency. To prevent overlapping spatial regulations that may occur in Gayungan District, it is necessary to monitor the suitability of land use using geographic information system technology and remote sensing. The data used in this study are the 2019 Gayungan District RDTRK Map and very high resolution satellite imagery of Pleiades Surabaya City 2019. The method used is the Object Based Image Analysis (OBIA) method. The result of this research is the suitability of land use in Gayungan District. A land use can be said to be suitable if the existing land use is in accordance with the land use in the plan. Meanwhile, land use is said to be inappropriate if the existing land use is different from the planned spatial use. All land use classes in Gayungan District in 2019 had a higher percentage of unsuitable land than the percentage of suitable land. Each percentage of land is not suitable for each land use class, namely: water body class by 92.593%, road class by 78.035%, industrial class by 77.838%, defense class by 76.706%, green open space class by 69.736%, and residential class by 52,27%. So it can be said that the land use in Gayungan District in 2019 was not in accordance with the plans in the City Spatial Detail Plan Map for 2018-2038, but the land use could be appropriate in its designation for the future, because there is a possibility of development for residential class, industrial class, and defense class on open land that is still widely available.

Spatial Analysis Of Land Use Changes Towards Banjarbaru City's Regional Spatial Plan

Banjarbaru City is one of the cities in South Kalimantan Province which is developing quite rapidly from year to year. Hence, it is necessary to research and study changes in land use and their suitability with the city development plan. The purpose of this study is to examine changes in the area and types of land use changes in Banjarbaru City within a period of 8 years, from 2013 to 2021, determine the rate of land use change, and assess the suitability of land use changes to the applicable Banjarbaru City spatial plan. This research method is an overlay to see changes in land use and the suitability of changes in land use with the direction of spatial functions in the Regional Spatial Plan. The result of this research is that in an area of ​​16,414.00 ha (53.7%) there is a change in land use in Banjarbaru City in the period 2013-2021. The biggest land use changes are dry land agriculture, vacant land, wetland agriculture, housing, and villages. The use of dry land and agricultural land has the largest decrease in area, which is 15,090.71 ha or a decrease of 365.5%. The use of vacant land increased in an area of ​​14,715.684 hectares or an increase of almost 4 times. Wetland agriculture has decreased in an area which is reduced by 986.55 ha or decreased by 65.8%. The use of land for housing/residential in the form of housing or villages has also undergone considerable changes. The use of residential land has increased by 528.105 hectares (44.626%) and the village area to 444.32 ha (21.2%). The suitability of land use with the RTRW in Banjarbaru City is 16,742.86 ha (54.8%) categorized as appropriate, while an area of ​​13,779.69 ha (45.2%) is categorized as not in accordance with the applicable RTRW.

Developing a Climate Change Vulnerability Index for Coastal City Sustainability, Mitigation, and Adaptation: A Case Study of Kuala Terengganu, Malaysia

Coastal hazards are an urgent issue of global concern considering the increasing population pressure in coastal regions, retreating coastlines, and rising seawater levels. Here we demonstrate the process of assessing the vulnerability of a coastal urban environment using the case of Kuala Terengganu, a coastal town in Malaysia, and evaluating the potential social, environmental, and economic impacts. Uncertainties in the human dimensions of global change deeply affect the assessment and responses to environmental, climatic, and non-climate impacts on coastal city population growth and communities. We address these uncertainties by combining a Delphi-Analytical Hierarchy Process (Delphi-AHP) model and Geographic Information System (GIS)tools to determine mitigation and adaptation probabilities as part of a Coastal City Vulnerability Assessment. We conclude by presenting calculations of the short- and long-term suitability for land use and recommending hazard mitigation measures to equip city planners and decision-makers in evaluating hazards and potential impacts on coastal city areas.

Suitable Land-Use and Land-Cover Allocation Scenarios to Minimize Sediment and Nutrient Loads into Kwan Phayao, Upper Ing Watershed, Thailand

Human activity and land-use changes have affected the water quality of Kwan Phayao, Upper Ing watershed, due to the associated high sediment load and eutrophication. This study aims to identify suitable LULC allocation scenarios for minimizing sediment and nutrient export into the lake. For this purpose, the LULC status and change were first assessed, based on classified LULC data in 2009 and 2019 from Landsat images, using the SVM algorithm. Later, the land requirements of three scenarios between 2020 and 2029 were estimated, based on their characteristics, and applied to predict LULC change using the CLUE-S model. Then, actual LULC data in 2019 and predicted LULC data under three scenarios between 2020 and 2029 were used to estimate sediment and nutrient export using the SDR and NDR models. Finally, the ecosystem service change index identified a suitable LULC allocation for minimizing sediment or/and nutrient export. According to the results, LULC status and change indicated perennial trees and orchards, para rubber, and rangeland increased, while forest land and paddy fields decreased. The land requirements of the three scenarios provided reasonable results, as expected, particularly Scenario II, which adopts linear programming to calculate the land requirements for maximizing ecosystem service values. For sediment and nutrient export estimation under the predicted LULC for the three scenarios, Scenario II led to the lowest yield of sediment and nutrient exports, and provided the lowest average ESCI value among the three scenarios. Thus, the LULC allocation under Scenario II was chosen as suitable for minimizing sediment or/and nutrient export into Kwan Phayao. These results can serve as crucial information to minimize sediment and nutrient loads for land-use planners, land managers, and decision makers.

Improving integrated environmental zoning from the perspective of logic scoring of preference and comparative advantage: A case study of Liangjiang New Area, China

Rapid industrialization and urbanization have caused serious conflict between humans and nature due to the spatial variability of natural environmental conditions. Integrated environmental zoning (IEZ) is an efficient tool to regulate sustainable development in developing countries such as China. Previous studies explore application of IEZ based on assessment of resource and environmental carrying capacity (RECC) and evaluation of urban development land-use suitability (UDLS). However, existing IEZ oversimplify the complexity of UDLS evaluation, and have low spatial resolution. In addition, it is difficult to express overlay results of RECC and UDLS from a multi-dimensional perspective. Therefore, this study sets forth an improved IEZ by a logic scoring of preference (LSP) and a comparative advantage evaluation. The LSP method and normalized revealed comparative advantage (NRCA) index is applied to assess UDLS and the comparative advantage of RECC (CARECC). The results of IEZ are integrated by overlaying the CARECC zones with numerically processed UDLS maps. A small-scale, rapid development area, Liangjiang New Area (LJNA), serves as the study area. The highly suitable, suitable, moderately suitable, marginally suitable, and not suitable land of LJNA covers 276.60, 368.40, 183.45, 143.22, and 228.33 km2, respectively. Furthermore, the spatial distribution of RECC in LJNA clearly differ. Based on the results of UDLS and RECC, ten types of integrated environmental zones in the form of “category + intensity” are delineated. The improved IEZ is consistent with the LJNA Master Plan, reflects the logic of human reasoning more accurately, increases the spatial resolution, achieves zoning from multi-dimensional perspectives, restricts the category and determines the sequence of urban development, which can serve as a reference for optimization of land space in LJNA and is also significant to other areas and places.

Suitability of land use with spacial plan in Lisu watershed

Changes in current land use without regard to ecological aspects result caused suitability of land use. This research aims to identify and analyze the suitability of land use in 2017 with the planned spatial pattern in the Lisu Watershed. The data were collected in the form of primary data was the land use and secondary data spatial plan area. The data were analyzed with interpretation, test accuracy and conformity determination for the overlay in land use with the plan space. Based on the interpretation of the image obtained by land use in Lisu watershed secondary dryland forest covering an area of 8,514.97 ha (21.98%), plantations forest covering an area of 78.83 ha (0.20%), meadows covering an area of 508.20 ha (1.31%), settlements covering 719.28 ha (1.86%), bush mixed dryland farming covering an area of 14,623.84 ha (37.75%), paddy fields covering an area of 6,595.35 ha (17.02%), shrub covering an area of 6,878.54 ha (17.75%), pond covering an area of 517.45 ha (1.34%), open land covering an area of 164.93 ha (0.43%) and a water body covering 140.78 ha (0.36% ). Based on the results of the analysis of land use suitability with the plan space is acquired that land use plan that fit the space of 71.62% and which is not in accordance of 28.38%.

Land use/land cover change assessment of Mohana watershed (Far-Western Nepal) using GIS and remote sensing

The present study was conducted in the Mohana watershed of Far-western Nepal to assess land use land cover change. The study has used ArcGIS and three Landsat images - Landsat TM (1999), Landsat ETM+ (2009), and Landsat OLI (2019) – to analyze land use the land cover change of the watershed. The change matrix technique was used for change detection analysis. The study area was classified into five classes; forest, agriculture, built-up, water bodies, and barren lands. The study has found that among the five identified classes forest and build-up increased positively from 45.40 % to 51.51 % - forest cover and 11.26 % to 19. 85 % - build-up respectively. Similarly, agricultural land and water bodies initially increased but after 2009 both land cover areas decreased to 23.79 % and 0.73 % from 31.38 % and 0.97 % in 2009 respectively. Barren land decreased from 15.37% to 4.12% over the last 20 years. This study might support land-use planners and policymakers to adopt the best suitable land use management option for the Mohana watershed.