Evaluasi Kesesuaian Lahan untuk Kawasan Permukiman dengan Metode Multi Criteria Evaluation di Kota Padang

Population growthis linear tothe requrement of settlement area, while the area of the earth is limited. It was caused inappropriate use of the land. This study aims to identify, analyze, and describe dynamics and suitability of land for settlements in Padang. Determination of land suitablity for settlementis using Multi Criteria Evaluation (MCE) method. The indicators used in determining the suitability of land for settlement is the slope, the frequency of flooding, drainage, distrubusi gravel, rock distribution and effective depth. Weighting in the analysis of land suitability based on the opinions of experts from various fields related to as many as 15 experts. Analysis result for land suitability of settlements in the area show that: there were 12.543 ha (18%) very suitable for settlement; 52.390 ha (75,4%) were suitable for settletment; 4.279 ha (6,2%).were compatible with marginal for settlement; and 285 ha (0,8%) were unsuitable for settlement. The area is very suitable for residential areas is very limited, so expect optimal utilization

Analisis Faktor Penyebab Alih Fungsi Lahan Sawah Menjadi Sawit Di Kabupaten Tanjung Jabung Timur

EnglishOne-Million Hectaresof Oil Palm Plantation Programin 2000 was deemed as the starting point of lowland conversion in East Tanjung JabungRegency. This study aims to review the impact of development policy in the past on lowland conversion, to compare costsand incomesbetween those of paddy farming and oil palm plantation business, and to analyze constraints to implement the target of Sustainable Land for Food Agriculture Protection(PLP2B) Program. Primary data were collected from observation, focus group discussion, and in-depth interviewwith resource persons, survey and Landsat Imaginary data.Secondary data were gathered from the institutionsat provincial and regency levels. This study explored both qualitative and quantitative methods as well as by overlay of maps in2006, 2010 and 2014. Development policy inconsistency is influenced by change in regency government leadershipwith the new mission not well integrated with the previous programs.On the other hand, land rent of paddy farm was much less than that of oil palm plantation. There are someconstraints to implement the PLP2B Program, namely weak Regional Regulations, lack of coordination among the Regional Government institutions, and limited development budget. It is suggested that the Regency Government to evaluatePLP2B Program target by considering some limiting factors, issuingthe Regent\u27s Regulation dealing with incentives to farmers and program coordinators, and controlling the regional planning.IndonesiaProgram Satu Juta Hektare Lahan Sawit tahun 2000 merupakan titik awal terjadinya alih fungsi lahan sawah di Kabupaten Tanjung Jabung Timur. Tujuan penelitian ini untuk mengetahui pengaruh kebijakan pembangunan pada masa lalu terhadap kejadian alih fungsi lahan sawah, perbandingan biaya dan pendapatan USAha tani padi dengan kelapa sawit, dan tantangan yang dihadapi dalam mewujudkan target PLP2B. Data primer dikumpulkan melalui observasi, diskusi kelompok, wawancara mendalam dengan narasumber terpilih, survei, serta data Citra Landsat; sedangkan data sekunder diperoleh dari instansi pemerintah di Provinsi Jambi dan Kabupaten Tanjung Jabung Timur. Metode yang digunakan adalah kombinasi kualitatif deskriptif dan kuantitatif serta overlay peta penggunaan lahan tahun 2006, 2010, dan 2014. Inkonsistensi kebijakan pembangunan dilatari terjadinya pergantian pimpinan daerah yang misinya kurang terintegrasi dengan program pembangunan pertanian sebelumnya serta terdapat kesenjangan land rent di mana pendapatan dari lahan sawah jauh lebih rendah dibanding kelapa sawit dengan luasan yang sama. Tantangan menerapkan Perda PLP2B sangat berat: kurang memadainya regulasi, lemahnya koordinasi antarinstansi pemerintah terkait, hingga keterbatasan dana pembangunan. Pemerintah daerah disarankan mengkaji kembali target PLP2B dengan memperhatikan faktorfaktor pembatas, menerbitkan Peraturan Bupati sehingga dapat diatur jenis dan besaran nilai insentif yang diterima petani serta koordinator program serta pengetatan pengawasan implementasi RTRW

Landslide Hazard Mapping based on GIS Univariate Statistical Classification: Case Study of Ciawi-Puncak-Pacet Regions, West Java

Regarding environmental degradation in Puncak and its surrounding area due to the rapid landuse changes during 1981-1994, some mitigation schemes for soil erosion have been implemented but landslides. Data on landslide and its causative factors (landuse, soil, geology, slope, climate, and terrain mapping unit) and their relationships in the area are still not available. The objective of this research is to develop the method and procedures to map landslide hazards by using GIS (Geographical Information System) univariate-statistical analysis applied to the area as a case study. For this purpose, three methods to classify and to map landslide hazards were evaluated. They were respectively developed by considering: (a) unweighted density total number of the landslide, Method#1, (b) density total number, weighting value, and age of landslide, Method#2, and (c) density total number, weighting value, age, and activity level of the landslide, Method#3. The density number is counted by overlying· each of the landslide maps and each of the causative factors maps used, and from this step, the weighting value is derived. The resulting density number of landslide given as a cumulative percentage and the corresponding weighting value were then plotted on an X-Y graph. From the graph, the level of landslide hazard is classified by applying: (1) standard classification procedure as the default statistical analysis given by the software used, and (2) natural classification procedure as it based on the nature of the curve slope of the cummulative graphic. The result given by the three methods were varied but in general, they gave landslide hazard maps with a similar pattern in which the very high and very low hazard levels in the study area increased during the period of 1981-1994. Of the three methods, applying the natural classification gave a better result than that of the standard classification procedure. Method#2 and Method#3 were better than Method#1 in predicting the future landslide occurrence. Apparently, Method#3 should show the best result but the effect of conversion from raster to vector data in GIS significantly reduced the quality of the resulting map.Regarding environmental degradation in Puncak and its surrounding area due to the rapid landuse changes during 1981-1994, some mitigation schemes for soil erosion have been implemented but landslides. Data on landslide and its causative factors (landuse, soil, geology, slope, climate, and terrain mapping unit) and their relationships in the area are still not available. The objective of this research is to develop the method and procedures to map landslide hazards by using GIS (Geographical Information System) univariate-statistical analysis applied to the area as a case study. For this purpose, three methods to classify and to map landslide hazards were evaluated. They were respectively developed by considering: (a) unweighted density total number of the landslide, Method#1, (b) density total number, weighting value, and age of landslide, Method#2, and (c) density total number, weighting value, age, and activity level of the landslide, Method#3. The density number is counted by overlying· each of the landslide maps and each of the causative factors maps used, and from this step, the weighting value is derived. The resulting density number of landslide given as a cumulative percentage and the corresponding weighting value were then plotted on an X-Y graph. From the graph, the level of landslide hazard is classified by applying: (1) standard classification procedure as the default statistical analysis given by the software used, and (2) natural classification procedure as it based on the nature of the curve slope of the cummulative graphic. The result given by the three methods were varied but in general, they gave landslide hazard maps with a similar pattern in which the very high and very low hazard levels in the study area increased during the period of 1981-1994. Of the three methods, applying the natural classification gave a better result than that of the standard classification procedure. Method#2 and Method#3 were better than Method#1 in predicting the future landslide occurrence. Apparently, Method#3 should show the best result but the effect of conversion from raster to vector data in GIS significantly reduced the quality of the resulting map

Arahan Pengembangan Lahan Potensial untuk Tambak Garam di Pesisir Kabupaten Rembang

Rembang Regency is one of the national salt production centers that potentially can be increased its salt production. This study was aimed to guide potential land development for salt ponds on the Rembang Regency coast. The overlay method between land suitability maps for salt ponds, land use maps, and Regional Spatial Plan (RTRW) maps of Rembang Regency was be used to analyze potential areas for salt pond development. The results showed that the coastal area of Rembang Regency, which had a land suitability class of S1 was 10,325 hectares, a land with suitability class S2 area was 5,687 hectares, and land with suitability class S3 was 2,471 hectares, while the not suitable area for salt ponds (N) was 17,813 hectares. The total land available for the salt ponds development was 3,560 hectares. Based on the economic analysis results, it was known that the salt production business carried out on the land with suitability classes S1, S2, and S3 will get profit. Potentially land for development of salt ponds, which in line with the RTRW was 2,484 hectares. The utilization of Rembang Regency coastland for salt production enhancement was directed into three categories. The first was land that needed to be maintained its productivity covered an area of 1,366 hectares. The second was land that could be used for extensification covered an area of 931 hectares. The last was land that needed to be intensified covered an area of 187 hectares

Membangun Penyelenggaraan Sistem Administrasi Pertanahan di Kabupaten Nunukan: Pengalaman pada Kajian Penyelenggaraan Sembilan Kewenangan Pertanahan di Studi LMPDP 2006-2010 dan Lainnya

UU No 32, 2004 menegaskan· pemerintah daerah mempunyai kewenangan untuk menjalankan pengelolaan wilayahnya dan hal ini mensyaratkan pemerintah kabupaten/kota mempersiapkan kelembagaan..

Development of Land Capacity Status for Labour Absorption in Horticulture Area Using Geographic Information System, A Case Study in Samarang Subdistrict, Garut, West Java

An index for labor absorption capacity of an agricultural cropping system requires worker number from direct activities and non-direct activities in a field The number of workers from direct activities can be generated from landmanagement (ploughing, fertilization, weeding, etc), meanwhile, the number of workers from non-direct activities such as transportation of manure and product, has to include a distance effect. A distance of a farm from a collection point, where agricultural facilities distributed, contributes to the number of workers required for carrying such products or fertilizers.To calculate a distant effect to absorption capacity is hampered by difficulty in measuring of farm distance in a field,which implies it is rarely found such proper data in producing a labor absorption capacity. GIS as a spatial technology has the capability to produce such as distance effect. This research demonstrated the use of GIS in producing labor absorption capacity index and map of status labor absorption in Samarang sub-district, where several intensive agricultural activities such as paddy, vegetable and perfume grass crops were found The map could be used to understand indirectly the economic situation of the area. Keywords: Cropping system, distance, GIS, labor absorption capacity, Samarang sub-districtAn index for labor absorption capacity of an agricultural cropping system requires worker number from direct activities and non-direct activities in a field The number of workers from direct activities can be generated from landmanagement (ploughing, fertilization, weeding, etc), meanwhile, the number of workers from non-direct activities such as transportation of manure and product, has to include a distance effect. A distance of a farm from a collection point, where agricultural facilities distributed, contributes to the number of workers required for carrying such products or fertilizers.To calculate a distant effect to absorption capacity is hampered by difficulty in measuring of farm distance in a field,which implies it is rarely found such proper data in producing a labor absorption capacity. GIS as a spatial technology has the capability to produce such as distance effect. This research demonstrated the use of GIS in producing labor absorption capacity index and map of status labor absorption in Samarang sub-district, where several intensive agricultural activities such as paddy, vegetable and perfume grass crops were found The map could be used to understand indirectly the economic situation of the area. Keywords: Cropping system, distance, GIS, labor absorption capacity, Samarang sub-distric

PENGARUH TINGGI MUKA AIR GAMBUT SEBAGAI INDIKATOR PERINGATAN DINI BAHAYA KEBAKARAN DI SUNGAI JANGKANG - SUNGAI LIONG

Disasters of forest and land fires are increasingly concerned. The nature of peat soil which is easy to lose water and high organic matter content causes peat soils to be very sensitive to fire. Therefore it is necessary to know indicators for early warning of fires on peatlands. The purpose of this study is to determine the critical groundwater level (GWL) as an indicator of peatland fires on the Jangkang River - Sungai Liong. Determination of the critical point of peatland fires as a fire early warning is done by calculating the difference from the value of the undefined TMA with a range of possible errors. The TMA value is obtained from the estimation of several methods, namely data on the physical properties of the soil, the drought index, and a combination of both. The TMA estimation of the physical properties of the soil has a range of fires at depths of 74.3 - 107 cm. In estimating TMA using a drought index, potential fires occur in TMA ranging from 27 - 101 cm. While the combined estimates of the physical properties of the soil and the drought index ranged from 66.8 - 98.8 cm the occurrence of fires on peatland. The results of this study show that the estimated TMA from a combination of field data and drought index provides fairly good accuracy. Thus TMA can be an early warning indicator of the danger of peatland fires. This TMA estimation can give faster results and pretty good accuracy. But this estimation model for TMA does not necessarily apply directly to other research locations. The critical point of peat soil water depth ranges from 27 to 74 cm. The depth of the peatland surface should be maintained less than the critical point, if not then the potential for peatland fires will increase. &nbsp