scholarly journals ARAHAN PENGGUNAAN LAHAN DAN PERENCANAAN KONSERVASI TANAH DAN AIR DI DAS YEH EMPAS, TABANAN, BALI

2015 ◽  
Vol 9 (1) ◽  
pp. 54
Author(s):  
I Gusti Agung Lanang Widyantara ◽  
I Nyoman Merit ◽  
I Wayan Sandi Adnyana
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Land Use Changes ◽  
Daily Rainfall ◽  
Research Area ◽  
High Density ◽  
Scoring Method ◽  
Management Actions ◽  
Erosion Prediction ◽  
Slope Factor

Damage to forest resources has caused the environmental balance of watersheds (DAS) becomes damaged. It often causes the result of high levels of erosion. One of the land use changes that are currently happening is in Yeh Empas watershed. With this research can be known the proposed land use and appropriate land use planning on Yeh Empas watershed. Erosion prediction using the USLE (Universal Soil Loss Equation) method is to estimate how much the rate of erosion is happening and also to get an idea how good land management actions for the region. The proposed land use determination is using the scoring method by combining the slope factor of the field, the soil sensitivity of erosion, and the intensity of daily rainfall. Soil sampling was done by taking soil samples from a total of 11 samples of soil from the land unit. This research conducted to estimate the rate of erosion, to determines how much erosion can be tolerated in Yeh Empas watershed, and its relationship with the factors that influence it, as well as to determine the proposed of land use. The results of erosion prediction on each unit of land in the research area ranged from 1.75 to 1,254.96 tons/ha/year and has a grade level of erosion from slight to very severe. The result of tolerated erosion ranged from 15.06 to 24.32 tons/ha/year. The value of erosion prediction that exceeded from tolerated erosion value occurs on land units 7, 8, and 9. On that land units required proposed of land use and soil conservation techniques so that the value of erosion prediction could be below from tolerated erosion value. The analysis results of the proposed land use in Yeh Empas watershed, for areas inside the forest is proposed to protected forest (land units 1, 2, 3, 4, 5, and 6) and the management is by planting plants that are adapted to the contour lines of slope. In the areas outside the forest is proposed for annual crop cultivation area (land units 7, 8, and 9)the management with the farming plantation development, high density growing crops and terracing and also for crops cultivation area (land units 10 and 11) management by mulching, cover soil with high density and terracing.

Reconnaissance Mapping for Land-use Planning in the Natal Drakensberg, South Africa

1977 ◽  
Vol 4 (2) ◽  
pp. 103-108 ◽  
Author(s):  
Gerald G. Garland ◽  
J. Pelham Chisholm ◽  
Colin R. Christian
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Land Use Changes ◽  
Mass Movement ◽  
Land Use Pattern ◽  
Erosion Rates ◽  
Reconnaissance Survey ◽  
Adequate Understanding ◽  
Geomorphological Processes ◽  
Detailed Work

Changes in land-use can have an important effect on rates of erosion and denudation. In order to avoid accelerating erosion rates, decision makers in land-use planning require adequate information on the contemporary geomorphological processes and hydrology of areas where modifications in the land-use pattern are envisaged. The first phase in the acquisition of the information is the reconnaissance survey, which shows where and how the erosional status of an area is likely to be affected, and also acts as a foundation on which to base more detailed work in the future.The Solitude area is an active erosional system, dominated by mass movement and fluvial processes. The rate of removal of material is likely to be increased by modifications in land-use which, from other points of view, would be considered entirely suitable for the area. Therefore, if accelerated denudation is to be avoided, projects involving land-use changes should be implemented only by those having an adequate understanding of the mechanism of geomorphological processes operating in the area.

scholarly journals Integrating Land-Use and Renewable Energy Planning Decisions: A Technical Mapping Guide for Local Government

2020 ◽  
Vol 9 (5) ◽  
pp. 324
Author(s):  
Jiaao Guo ◽  
Victoria Fast ◽  
Philip Teri ◽  
Kirby Calvert
Keyword(s):  
Land Use ◽  
Renewable Energy ◽  
Land Use Planning ◽  
Local Governments ◽  
Emission Reduction ◽  
Land Use Changes ◽  
Planning Decisions ◽  
Environmentally Sensitive ◽  
Utility Scale

Land-based, utility-scale renewable energy (RE) systems using wind or solar resources to generate electricity is becoming a decisive solution to meet long-term carbon emission reduction goals. Local governments are responding in kind, by adopting their own goals and/or establishing policies to facilitate successful implementations of RE in their jurisdiction. One factor to successful RE development is to locate the most suitable lands, while continuing to sustain land-based economies and ecosystem services. Local governments often have limited resources; and this is especially true for small, land-constrained local governments. In this paper, we illustrate how a standardized RE technical mapping framework can be used by local governments to advance the implementation of RE in land-constrained areas, through a case study in the Town of Canmore, Alberta. Canmore has a limited municipal area surrounded by the Canadian Rockies, along with complex land-use bylaw and environmentally sensitive habitats. This mapping framework accounts for these conditions as it considers theoretical resources, technically recoverable lands, legally accessible lands, and the spatial capital cost of connecting new RE facilities. Different land-use planning scenarios are considered including changing setback buffers and expanding restrictions on development to all environmentally sensitive districts. The total RE potentials are then estimated based on the least-conflict lands. Technically speaking, even under restrictive land suitability scenarios, Canmore holds enough land to achieve ambitious RE targets, but opportunities and challenges to implementation remain. To eventually succeed in its long-term emission reduction goal, the most decisive step for Canmore is to balance the growth of energy demands, land-use changes, and practicable RE development. Mapping systems that can study the influence of land-use planning decisions on RE potential are critical to achieving this balance.

Insights, implications and challenges of studying local soil knowledge for sustainable land use: a critical review

Soil Research ◽  
2020 ◽  
Vol 58 (3) ◽  
pp. 219 ◽  
Author(s):  
Ha T. N. Huynh ◽  
Lisa A. Lobry de Bruyn ◽  
Brian R. Wilson ◽  
Oliver G. G. Knox
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Grey Literature ◽  
National Policy ◽  
Soil Management ◽  
Soil Classification ◽  
Developed Countries ◽  
Research Area ◽  
Sustainable Land Use ◽  
Local Soil

Local soil knowledge (LSK) has been recognised for its importance in sustainable soil management and agroecosystems. This paper examines peer-reviewed articles and grey literature documents on LSK during 2003–2018. Research continues to be geographically focused on developing countries, but often in collaboration with researchers from developed countries. There were five key research themes: soil classification and agreement between local and scientific soil knowledge (Theme 1), value of LSK for soil management and decision-making (Theme 2), scientific approach to the incorporation of LSK (Theme 3), application of LSK for identification of and solutions to soil problems (Theme 4) and factors influencing soil knowledge development (Theme 5). Although Theme 1 continued to be a prevalent research area, confirming the importance of visible and topsoil characteristics identified by farmers, examining subsurface soil properties has garnered less research. For LSK to be thoroughly documented requires support by a pluralistic scientific assessment and greater incorporation of social science methodologies. An overarching finding from Themes 2–4 was the importance of designing national programs that incorporate LSK derived from local people and other stakeholders (e.g. scientists and policymakers) to conserve soils. Local soil maps, using LSK terminology, could broaden the appeal and use of maps by local stakeholders to support sustainable land-use planning from the field to national policy-making processes. Finally, cultural and political aspects, known to influence LSK, should be given greater consideration in further research to sustain and develop this knowledge (Theme 5).

scholarly journals Prediksi Erosi di Wilayah Jawa Timur

2019 ◽  
Vol 17 (2) ◽  
pp. 323
Author(s):  
Rhoshandhayani Koesiyanto Taslim ◽  
Marga Mandala ◽  
Indarto Indarto
Keyword(s):  
Land Use ◽  
Rural Areas ◽  
Erosion Rate ◽  
Wide Area ◽  
Erosion Processes ◽  
Erosion Prediction ◽  
Erosion Level ◽  
Severe Erosion ◽  
Slope Factor ◽  
Factor C

Erosion is an event of eroding soil that occurs naturally.  However, human activities that change land use from natural (forestry, plantation, rural areas) to urban features can alter the erosion processes.  Rapid calculation of erosion level for the wide area is necessary for the management and conservation planning.  This research aims to analyze the erosion level in East Java area using USLE (Universal Soil Loss Equation) and GIS. The erosivity factor (R) is calculated from rainfall data. Vegetation factor (C) and the conservation factor (P) estimated from land use map.  The length and slope factor (LS) are calculated from the ASTER GDEM2, and the erodibility factor (K) is obtained from interpretation of soil map. Furthermore, all factors were analysed to calculate erosion rate. The result shows that the average erosion rate in East Java regions is 10,30 tons/ha/year.  The result also show that 78,71% area of East Java is classified as very low erosion rate (0-15 tons/ha/year); 10,75% classified as low erosion rate (15-60 tons/ha/year); 6,39% classified as  moderate erosion rate (60-180 tons/ha/year); and 2,83% is severe type (180-480 tons/ha/year). Only 1,31% from the total area is classified as very severe erosion rate (>480 tons/ha/year). The result also shows that USLE can be used to facilitate rapid erosion prediction for wide area.

scholarly journals Estimating Recreation Values Associated With Land Use Changes

1979 ◽  
Vol 11 (2) ◽  
pp. 97-102
Author(s):  
Wesley N. Musser ◽  
Rod F. Ziemer
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Government Policy ◽  
Private Property ◽  
Land Use Changes ◽  
Natural Resource Economics ◽  
Limited Attention ◽  
Private Property Rights ◽  
Classic Problem ◽  
Wildlife Recreation

Achieving optimal use of wildlife resources is a classic problem in natural resource economics. Ciriacy-Wantrup argued that wildlife resources are a case of a fugitive resource for which private property rights cannot easily be defined and therefore government policy may be necessary to obtain optimal use [5, pp. 141–145]. Land use planning is one area of government policy in which limited attention has been given to management of wildlife resources. One reason for the neglect may be the lack of emphasis on estimating the value of wildlife recreation experiences associated with particular land uses. An exception is the work of Martin, Tinney, and Gum [16] who did not look at marginal land use changes but did consider the termination of all cattle ranching in Arizona and its effect on recreational and agricultural economic surpluses.

A Spatio-Temporal Storage Method for Land-Use Change

2014 ◽  
Vol 687-691 ◽  
pp. 3078-3082
Author(s):  
Ning Pan ◽  
Ke Wang ◽  
Jing Jing Tan
Keyword(s):  
Data Mining ◽  
Decision Making ◽  
Land Use ◽  
Land Use Change ◽  
Land Use Planning ◽  
Historical Data ◽  
Land Use Changes ◽  
Storage Method ◽  
Temporal Aspect ◽  
Spatio Temporal

Frequent land-use changes might produce a large amount of historical data which are valuable for data mining and decision-making. Based on the traditional Whole-state-recording Mode, the Special-state-recording Mode was proposed, focusing on the temporal aspect. This mode could optimize the land use database and reduce redundant change record. It could also improve data rollback and historical backtracking functions. The mode was successfully applied to land use planning in Zhejiang Province.

Watershed Land-Use Planning under Uncertainty

1983 ◽  
Vol 15 (7) ◽  
pp. 987-992 ◽  
Author(s):  
I C Goulter ◽  
H G Wenzel ◽  
L D Hopkins
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Heuristic Search ◽  
Land Use Changes ◽  
Stochastic Dynamic ◽  
Planning Under Uncertainty ◽  
Watershed Land Use ◽  
Land Use Decisions ◽  
Heuristic Technique ◽  
Uncertain Outcomes

A model of watershed land-use planning is formulated that improves on existing models by recognizing that land-use decisions have uncertain outcomes and that land uses change over time. Implications of recognizing the distinction between land-use decisions and their uncertain outcomes are discussed. The land-use changes are modelled using a Markov process. Because of the computational difficulties in determining the return associated with the complete range of possible decision sets, a heuristic technique is required. A heuristic search procedure based on stochastic dynamic programming is described.

scholarly journals Perubahan Penggunaan Lahan Dan Dampaknya Terhadap Erosi Di Daerah Aliran Sungai Wae Lela Kota Ambon

Agrologia ◽  
2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Rambli Buton ◽  
Ruddy Soplanit ◽  
Agusthinus Jacob
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
Research Method ◽  
Field Survey ◽  
Land Use Changes ◽  
Research Area ◽  
Land Conservation ◽  
Synthetic Approach ◽  
Multiple Cropping ◽  
Observation Distance

High population of inhabitans in watershed area is an important factor which increase watershed’s damage so that, proper land conservation should be done. Research in the watershed Wae Lela has been done to analyze the dominant factors causing soil erosion due to changes in land use, and determine the amount of erosion after land use change in the watershed. The research method was field survey with a synthetic approach pattern by using free surveys observation distance. This observation distance used according to the pattern of land use changes on certain land units, with the type of profile observations/boring. The study found that land use in the watershed Wae Lela has undergone considerable changes in the last 25 years between 1988-2013. Natural forest generally has been transformed to be used for landfarming. Fram planted with multiple cropping of cloves, nutmeg, coconut, tubers, vegetable was become less effective to prevent erosion. This change leads to increased erosion which mainly occurred in mixed farm area up to  6415.06 t/ha/year; covered an area of  220.6 ha or 26.2% of the research area.

scholarly journals Flood Risk Index for Land-Use Changes: Case Study of Pakpanang River Basin

2020 ◽  
Vol 24 (5) ◽  
pp. 25-40
Author(s):  
Chonlatid Kittikhun ◽  
Sitang Pilailar ◽  
Suwatana Chittaladakorn ◽  
Eakawat Jhonpadit
Keyword(s):  
Land Use ◽  
River Basin ◽  
Land Use Planning ◽  
Flood Risk ◽  
Urban Areas ◽  
Risk Index ◽  
Land Use Changes ◽  
Flood Depth ◽  
Arc Gis

Flood Risk Index (FRI) is the multi-criteria linked with the factors of vulnerability; exposure, susceptibility, and resilience. In order to establish local FRI, crucial local information have to be accumulated. However, under the limitation of land-use data, particular techniques were applied in this study. CA Markov model was used to analyze the past missing land-use data and, also forecast the future land-use of Pakpanang river basin under conditions of plan and without plan. The ratio changes of forest, agriculture, wetland and water, and urban areas were considered. Then, the result of LULC spatial-temporal changes was then applied to Hec-HMS and Hec-Ras , with Arc GIS extension of Hec-GeoHMS and Hec-GeoRas software, in order to evaluate the flood hydrographs and flood severity in three municipalities corresponding to 100-year return period rainfall. Afterward, the FRI of Pakpanang, Chianyai, and Hua-sai, which ranges from 0 to 1, were evaluated by using the modified FRI equations. It was found that sensitivity analysis in the area of forest on flood depth and inundation areas is incoherent. Nevertheless, without land-use planning, the changes in these three cities cause higher flood risk, where Chianyai is the riskiest as the FRIE is 0.58. Further consideration of FRIE and FRIP proportion that reveals the FRI deviation indicates that to reduce flood risk, Chianyai would need the most resources and highest effort comparison to Pakpanang and Hua-sai.

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