KAJIAN PENANGGULANGAN KERUSAKAN LAHAN AKIBAT PERUBAHAN PENGGUNAAN LAHAN DENGAN PENDEKATAN MODEL HIDROLOGI PADA DAS PAMI

Agrotek ◽  
2018 ◽  
Vol 5 (6) ◽  
Author(s):  
Kati Syamsudin Kadang Tola ◽  
Siti Hadjar Kubangun
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Secondary Forest ◽  
Secondary Data ◽  
Soil Sampling ◽  
Peak Discharge ◽  
Primary Data ◽  
Primary Forest ◽  
Peak Flows ◽  
Administrative Area

<em>Changes in land use in watershed will affect peak discharge and degradation land. It is becoming an indicator of better or worse use of land in watershed area. This study aims to analysis land use change, to predict peak flows based on changes in land use and land use change scenarios in the Pami watershed. This study uses a number of primary data and secondary data. Primary data were obtained from observations of the condition of the land and soil sampling, which is then analyzed in the laboratory. Secondary data were obtained from literature and related agencies such as geographical map and thematic maps including land map, administrative area maps, land use maps in 1996-2015 and rainfall in 1996-2015. Data analysis included analysis of changes in land use, identification of watershed characteristics and hydrology analysis. Research results showed that  changes in land use in 1996-2015 was dominated by primary forest but experiencing a decline around 39,94%.  While land use included secondary forest and settlement area were increased by 73,10%  and 70,61% respectively. Predicted peak flows based on changes in land use obtained the average of peak discharge in 1996 was about 118.7 m3/sec, while the average of peak discharge in 2015 amounted to 157.4 m3/sec where there is an increase of 33.5 %. Scenarios of land use change conducted in the mixed farming in Pami watershed obtained peak discharge of 157.4 m3/sec</em>

scholarly journals Pola Perubahan Penggunaan Lahan Sub Sub Daerah Aliran Sungai (DAS) Cikujang

2016 ◽  
Vol 9 (2) ◽  
pp. 147-156
Author(s):  
Devianti Devianti
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Protected Area ◽  
Catchment Area ◽  
Rice Field ◽  
Secondary Forest ◽  
Forest Area ◽  
Primary Forest ◽  
Change Pattern ◽  
Changing Rate

Abstrak. Sub Sub DAS Cikujang merupakan salah satu bagian dari Sub DAS Cimanuk hulu yang dapat menyumbang sedimen ke waduk Jatigede yang berasal dari erosi sebagai akibat perubahan penggunaan lahan yang tidak sesuai dengan kondisi fisik lahan. Hasil kajian memperlihatkan  pola perubahan penggunaan lahan di Sub Sub DAS Cikujang periode 1994-2009, terjadi perubahan penggunaan lahan dari kawasan lindung menjadi kawasan budidaya seluas 742,20 ha. Kawasan lindung pada tahun 1994 seluas 3.213,03 ha menurun menjadi 2.470,83 ha pada tahun 2009 dan kawasan budidaya pada tahun 1994 seluas 9.532,41 ha meningkat menjadi 10.274,61 ha pada tahun 2009 dengan laju perubahan 185,55 ha/tahun. Laju penurunan luasan hutan primer mencapai 54,45 ha/tahun, dan pada tahun 2009 tidak terdapat lagi lahan dengan fungsi sebagai hutan primer. Laju penurunan luasan hutan sekunder mencapai 135,90 ha/tahun dari 2.995,25 ha pada tahun 1994 menjadi 2.451,65 ha pada tahun 2009. Pola perubahan penggunaan lahan di Sub Sub DAS Cikujang sebagian besar dipengaruhi dengan pola perubahan hutan primer dan hutan sekunder pada kawasan lindung. Sedangkan pola perubahan penggunaan lahan pada kawasan budidaya dipengaruhi pola perubahan lahan kebun campuran, tegalan/ladang, perkebunan, dan sawah Land-Use Change Pattern in Cikujang Catchment Area Abstract. Cikujang catchment area is one part of the subzone Cimanuk that can contribute sediment upstream reservoirs to Jatigede derived from erosion as a result of changes in land use that is not in accordance with the physical condition of the land. Based on analysis result of land-use change pattern in Cikujang catchment area in 1994 – 2009 period, land-use had changed 742,20ha from protected areas to cultivated areas, where protected area had decreased from 3.213,03ha in 1994 to 2.470,83ha in 2009 and cultivated area had increased from 10.274,61 ha in 1994 to10.274,61 ha in 2009 with changing rate ha/year. The rate of decreasing primary forest area was 54.45ha/year, as a result there was no land function as primary forest in 2009.  The rate of decreasing secondary forest area was 135,90ha/year ranging from 2.995,25ha in 1994 to 2.451,65ha in 2009. Land-use change pattern in Cikujang catchment area dominantly was influenced by changing pattern of protected forest and secondary forest in protected area, but in cultivated area land-use change pattern was influenced by changing pattern of farm, grassland, and rice field.

Analisis Alih Fungsi Lahan Menggunakan Regresi Logistik Ordinal

2022 ◽  
Vol 7 (2) ◽  
pp. 173-184
Author(s):  
Ani Apriani ◽  
Bayurohman Pangacella Putra
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Secondary Data ◽  
Observation Point ◽  
Landslide Hazard ◽  
Trigger Factor ◽  
Primary Data ◽  
P Value ◽  
Land Conversion ◽  
The Impact

The occurrence of landslides can not be separated from conditions that are prone to landslide movements such as steep slopes and high rainfall. The occurrence of landslides is also exacerbated by the indiscipline of the community in using land according to its function, which is called land conversion which can be a trigger factor for landslides. Conducting research on land use change is important to see the impact caused by human activities. The purpose of this study was to analyze the effect of land conversion on landslide hazard levels in Samigaluh District, Kulon Progo Regency. The method in this research was descriptive quantitative using primary data, namely field surveys and secondary data collection. The steps on this research were conducting field observations about the occurrence of land conversion and then retrieving level of landslide hazard at the observation point of land use change. Data analysis was performed using ordinal logistic regression. The result of the analysis showed that the p value (0.036) <0.05 which meant H0 was rejected. Thus, at the 95% confidence level it could be said that the variable of land use change affected the level of landslide hazard in Samigaluh District, Kulon Progo Regency. This output could be considered for the community to use the land according to its function.  Key words: Land Function Change; Landslide; Ordinal

scholarly journals Factors Driving Rice Land Change 1989–2018 in the Deli Serdang Regency, Indonesia

Agriculture ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 186
Author(s):  
Siagian ◽  
Shrestha ◽  
Shrestha ◽  
Kuwornu
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Urban Areas ◽  
Soil Analysis ◽  
Secondary Data ◽  
Binary Logistic Regression ◽  
Sustainable Land Use ◽  
Primary Data ◽  
Land Change ◽  
Factors Affecting

The Deli Serdang Regency produces amongst the highest amounts of rice in the province of North Sumatera in Indonesia. Due to land use change and stagnant productivity, the total rice land area and its production have gradually decreased over the years. Hence, understanding this issue is crucial, especially to ensure the sustainability of rice production in the future. The objectives of this study were to identify the trends in land use change (especially regarding rice land) and to investigate the factors affecting rice land change. We classified the satellite images acquired for the years 1989, 1994, 2003, 2009, and 2018 to determine the total area of various land uses. The factors driving rice land change were analyzed using biophysical and socio-economic factors identified from the collected primary and secondary data. The primary data were derived from field surveys, soil analysis, and household surveys, and the secondary data were derived from the Statistical Institution of the Deli Serdang Regency. Correlation analysis, principle component analysis, binary logistic regression, normalization, and weighted index were used to investigate the factors driving rice land change. The results show that forest and rice land have continuously decreased, while plantations and urban areas have continuously increased over this period. We found that the majority of rice land has been converted to plantation expansion and urban development, especially from 2009 to 2018. The factors most affecting rice land change were the distance of rice land to the district capital, the distance of rice land to the provincial capital, population density, slope, and the distance of farmers’ rice land to a road. A suitability map for rice land was generated. All the outputs could help with making appropriate strategic decisions to achieve sustainable land use management, especially for rice land.

scholarly journals DAMPAK KONVERSI LAHAN PERTANIAN KE NON-PERTANIAN TERHADAP PENDAPATAN RUMAH TANGGA PETANI DI KECAMATAN CIBADAK KABUPATEN SUKABUMI

2019 ◽  
Vol 6 (01) ◽  
pp. 21-28 ◽  
Author(s):  
A. Hatta ◽  
Lia Warlina
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Agricultural Land ◽  
Descriptive Analysis ◽  
Secondary Data ◽  
Primary Data ◽  
Total Change ◽  
Type Settlement ◽  
Change Impact ◽  
The Impact

ABSTRAK The research objective were to identify land use change in Kecamatan Cibadak and to describe the impact of land use change toward farmer’s income. This research used primary and secondary data. Primary data was collected by distribution of questionary, while secondary data was obtained from related intitutions.overlay technique was used to identify land use change. In other hand, descriptive analysis was use to describe land use change impact toward on farmer’s income. The total change of land use was 1,86 % in seven years (2006-2013). The total change of land use was 1,19 % in three years (2013-2016). The total income of land use type settlement was 33,112 ha in the ten years. However, the total change of agricultural land was 19,699 ha. It were 11 farmers who convert their land stated that theor income were in change deu to land conversion. Their agricultural land was converted into built area. The farmers still own the land and the culding or houses.   Kata Kunci : Guna Lahan, Perubahan Guna Lahan, Pemasukan

scholarly journals Belowground changes to community structure alter methane-cycling dynamics in Amazonia

2020 ◽  
Author(s):  
Kyle M. Meyer ◽  
Andrew H. Morris ◽  
Kevin Webster ◽  
Ann M. Klein ◽  
Marie E. Kroeger ◽  
...  
Keyword(s):  
Land Use ◽  
Microbial Community ◽  
Land Use Change ◽  
Forest Soils ◽  
Amazon Basin ◽  
Surface Soil ◽  
Secondary Forest ◽  
Primary Forest ◽  
Forest Regrowth ◽  
Cattle Pasture

ABSTRACTAmazonian rainforest is undergoing increasing rates of deforestation, driven primarily by cattle pasture expansion. Forest-to-pasture conversion has been associated with changes to ecosystem processes, including substantial increases in soil methane (CH4) emission. The drivers of this change in CH4 flux are not well understood. To address this knowledge gap, we measured soil CH4 flux, environmental conditions, and belowground microbial community attributes across a land use change gradient (old growth primary forest, cattle pasture, and secondary forest regrowth) in two Amazon Basin regions. Primary forest soils exhibited CH4 uptake at modest rates, while pasture soils exhibited CH4 emission at high but variable rates. Secondary forest soils exhibited low rates of CH4 uptake, suggesting that forest regrowth following pasture abandonment could reverse the CH4 sink-to-source trend. While few environmental variables were significantly associated with CH4 flux, we identified numerous microbial community attributes in the surface soil that explained substantial variation in CH4 flux with land use change. Among the strongest predictors were the relative abundance and diversity of methanogens, which both increased in pasture relative to forests. We further identified individual taxa that were associated with CH4 fluxes and which collectively explained ~50% of flux variance. These taxa included methanogens and methanotrophs, as well as taxa that may indirectly influence CH4 flux through acetate production, iron reduction, and nitrogen transformations. Each land type had a unique subset of taxa associated with CH4 fluxes, suggesting that land use change alters CH4 cycling through shifts in microbial community composition. Taken together, our results suggest that changes in CH4 flux from agricultural conversion could be driven by microbial responses to land use change in the surface soil, with both direct and indirect effects on CH4 cycling. This demonstrates the central role of microorganisms in mediating ecosystem responses to land use change in the Amazon Basin.

scholarly journals Response of Free-Living Nitrogen-Fixing Microorganisms to Land Use Change in the Amazon Rainforest

2013 ◽  
Vol 80 (1) ◽  
pp. 281-288 ◽  
Author(s):  
Babur S. Mirza ◽  
Chotima Potisap ◽  
Klaus Nüsslein ◽  
Brendan J. M. Bohannan ◽  
Jorge L. M. Rodrigues
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Plant Communities ◽  
Secondary Forest ◽  
Marker Gene ◽  
Amazon Rainforest ◽  
Primary Forest ◽  
Nitrogen Fixing ◽  
Free Living ◽  
Total N

ABSTRACTThe Amazon rainforest, the largest equatorial forest in the world, is being cleared for pasture and agricultural use at alarming rates. Tropical deforestation is known to cause alterations in microbial communities at taxonomic and phylogenetic levels, but it is unclear whether microbial functional groups are altered. We asked whether free-living nitrogen-fixing microorganisms (diazotrophs) respond to deforestation in the Amazon rainforest, using analysis of the marker genenifH. Clone libraries were generated from soil samples collected from a primary forest, a 5-year-old pasture originally converted from primary forest, and a secondary forest established after pasture abandonment. Although diazotroph richness did not significantly change among the three plots, diazotroph community composition was altered with forest-to-pasture conversion, and phylogenetic similarity was higher among pasture communities than among those in forests. There was also 10-fold increase innifHgene abundance following conversion from primary forest to pasture. Three environmental factors were associated with the observed changes: soil acidity, total N concentration, and C/N ratio. Our results suggest a partial restoration to initial levels of abundance and community structure of diazotrophs following pasture abandonment, with primary and secondary forests sharing similar communities. We postulate that the response of diazotrophs to land use change is a direct consequence of changes in plant communities, particularly the higher N demand of pasture plant communities for supporting aboveground plant growth.

scholarly journals Changes in Land Cover Analysis in The Gulf Coast Kendari Using High Resolution Satellite Image (Period: 2003-2009)

2013 ◽  
Vol 27 (2) ◽  
pp. 179 ◽  
Author(s):  
Laode Muh. Golok Jaya
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Cover ◽  
Public Space ◽  
Land Cover Change ◽  
Satellite Imagery ◽  
Gulf Coast ◽  
Secondary Forest ◽  
Satellite Image ◽  
Primary Forest

This research was aimed to indentify land cover change in coastal area of Kendari Bay in period 2003 to 2009. The satellite imagery data (Ikonos and Quick Bird) collected in 2003 and 2009 were used in this research to obtain the land cover change. The method used in this research was comparing the classification of satellite imagery. Field survey was conducted using handheld GPS for ground truth.  The result of this research showed us the land use change in period 2003-2009. Mangrove vegetation decreased 56.57 Ha and the fishpond also decreased 205.5 Ha. The primary forest decreased into 3.28 Ha in year 2009. The secondary forest also decreases 124.84 Ha. In the same time the urban area increased from 382.37 Ha in year 2003 to 674.37 Ha in 2009. The land use change also occured for the public space which increased from 6.49 Ha in 2003 to 18.46 Ha in 2009 or increased 11,97 Ha.

MANAJEMEN DATA SPASIAL: PENGGUNAAN TANAH WILAYAH PEDESAAN DI SUMATERA BARAT

2019 ◽  
Vol 5 (2) ◽  
pp. 48-53
Author(s):  
Afrital Rezki, S.Pd., M.Si ◽  
Erna Juita ◽  
Dasrizal Dasrizal ◽  
Arie Zella Putra Ulni
Keyword(s):  
Land Use ◽  
Paddy Field ◽  
Secondary Forest ◽  
Water Bodies ◽  
Primary Forest ◽  
Land Uses ◽  
Forest Land ◽  
Land Use Patterns ◽  
Crop Fields ◽  
Mixed Plantations

Perkembangan penggunaan tanah bergerak horisontal secara spasial ke arah wilayah yang mudah diusahakan. Penggunaan tanah juga bergerak secara vertikal dalam rangka menaikkan mutunya. Penelitian ini bertujuan untuk menganalisis pola penggunaan lahan, bagaimana manajemen penggunaan lahan di satu wilayah berdasarkan batas Nagari. Metode yang digunakan adalah analsisis spasial dengan interpretasi citra penginderaan jauh, survey lapangan, dan analisis deskriptif. Pertumbuhan pemukiman Nagari Sungai Sariak Kecamatan VII Koto Kabupaten Padang Pariaman mengakibatkan pemanfaatan ruang menjadi tumpang tindih. Diperlukan cara-cara pengelolaan dan managemen penggunaan tanah dalam rangka pembangunan berkelanjutan yang menaikkan taraf hidup masyarakat dan tidak menimbulkan kerugian lingkungan.Terdapat 9 jenis penggunaan lahan yang ada di Nagari Sungai Sariak. Penggunaan lahan tersebut adalah Primary Forest, Secondary Forest, Paddy Field, Settlement, Mixed Plantations, Crop Fields, Water Bodies, Bushes, dan Plantations. Penggunaan lahan yang paling luas di Nagari Sungai Sariak adalah jenis penggunaan lahan Primary Forest, sebesar 48% dari total luas wilayah Nagari Sungai Sariak. Pada tahun 2011 sampai tahun 2016, penggunaan lahan paling luas terjadi pada penggunaan lahan jenis Primary Forest yang kemudian menjadi Mixed Plantations. Land use Changes moved horizontally spatially towards areas that are easily cultivated. The land use also moves vertically in order to increase its quality. This study aims to analyze land use patterns, how land use management in one area is based on Nagari boundaries. The method used is spatial analysis with interpretation of remote sensing images, field surveys, and descriptive analysis. The growth of Nagari Sungai Sariak in Kecamatan VII Koto, Kabupaten Padang Pariaman resulted in overlapping use of space. Management methods are needed and management of land use in the framework of sustainable development that raises the standard of living of the community and does not cause environmental losses. There are 9 types of land use in the Nagari Sungai Sariak. The land uses are Primary Forest, Secondary Forest, Paddy Field, Settlement, Mixed Plantations, Crop Fields, Water Bodies, Bushes, and Plantations. The most extensive land use in Nagari Sungai Sariak is the type of Primary Forest land use, amounting to 48% of the total area of the Nagari Sungai Sariak. From 2011 to 2016, the most extensive land use occurred in Primary Forest land uses which later became Mixed Plantations.

scholarly journals DOMINANT FACTORS CHANGE OF LAND FUNCTION IN RAPUAN ROAD CORRIDOR UBUD BALI DUE TO TOURISM ACTIVITIES

ASTONJADRO ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 118
Author(s):  
Ni Nyoman Samitri Putri ◽  
Ngakan Ketut Acwin Dwijendra
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Descriptive Analysis ◽  
Land Use Changes ◽  
Secondary Data ◽  
Rice Fields ◽  
Internal Factors ◽  
Tourist Destinations ◽  
Tourist Accommodation ◽  
Collection Methods

<p>Bali is the most popular tourist destination with Ubud one of the tourist destinations with its beautiful landscapes and rice fields. Mas Village, Ubud is one of the tourist villages that has been inaugurated by the Gianyar Regency Government based on the Decree of the Gianyar Regent Number 429/E-02/HK/2017 regarding the establishment of a Tourism Village. Jalan Rapuan which is located in Tarukan Tourism Village, Mas is one of the strategic corridors in Mas Tourism Village because it is a stretch of rice fields that has a high tourism selling value. The purpose of this study is to identify changes in land use in 2013-2021 due to tourism activities seen from the aspects that have a dominant influence on land use changes. Quantitative method is the method used with primary and secondary data collection methods and stages of analysis in the form of descriptive analysis of tourism activities in Mas Village, statistical-descriptive analysis of land use change with overlay analysis on the Jalan Rapuan corridor. The results showed that there was a change in land use along the Rapuan corridor in 2013-2021 by 14% of the non-built land to be built in the form of tourist accommodation and housing. The indicators analyzed by factor analysis were able to explain important factors, namely external factors of 31.69%, internal factors of 23.821% and regulatory factors of 17.218% with a total of factors able to explain land use change of 72.73%.</p>

scholarly journals Kajian Potensi Produksi Hijauan Pakan pada Lahan Eksisting dan Potensial untuk Meningkatkan Populasi Ternak Ruminansia di Kabupaten Aceh Besar

2015 ◽  
Vol 15 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Mira Delima ◽  
Abubakar Karim ◽  
M. Yunus
Keyword(s):  
Land Use ◽  
Evaluation Method ◽  
Soil Depth ◽  
Secondary Data ◽  
Primary Data ◽  
Forage Production ◽  
Land Capability ◽  
Livestock Population ◽  
Survey And Evaluation ◽  
Potential Land

(The study of prospective forage production on existing and potential land use to support increasing livestock population in Aceh Besar) ABSTRACT. The purpose of this research was to find out the width and scattered location of existing land use which its land capability class suitable for pastures; forage production prospective, and land carrying capacity. The combination of survey and evaluation method was used in this study. The primary data were obtained by field observation and compiling documents, while the secondary data were obtained from various sources, including Bappeda Aceh, and Dinas Peternakan Aceh Besar. Land capability classification was defined based on a modified USDA method and land capability class mapping was prepared based on overlay method by geoprocessing of Geographic Information Systems. The attributes delineating land capability classification included slope, erosion potential and soil depth. Spatial and attributes data were processed using ArcGIS 9.3. Interpretation of land use map derived from satellite imagery analysis results. Brachiaria humidicola green production (tons/year) was determined by assumption-based on obtaining data from various sources. Present livestock population and increasing of population target up to 2017 were obtained from Dinas Peternakan Aceh Besar. The results showed that the existing land use area was 28,632.23 ha (59.03 %), whereas the potential land use area was 19,875.73 ha (40.97%). Land use area for pastures in the district of Aceh Besar, both existing and potential, were sufficient to support the achievement of livestock population increasing program.

Sign in / Sign up

Export Citation Format

Share Document