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Landuse Changes Refer to Spatial Planning Regulations at Kelara Watershed Area: An Analysis Using Geospatial Information Technology Ramlan, Andi; Neswati, Risma; Baja, Sumbangan; Nathan, Muhammad
Forum Geografi Vol 29, No 1 (2015): Forum Geografi
Publisher : Forum Geografi

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The purpose of this study is to analyze land use changes in the Kelara watershed and to assess the suitability of current land use changes with the spatial planning regulation of Jeneponto within Kelara basin. This study integrates various survey techniques, remote sensing, and geographic information system technology analysis. Geospatial information used in this study consists of Landsat ETM 7+ satellite imagery (2009) and Landsat 8 (2014) as well as a number of spatial data based on vector data which is compiled by the Jeneponto Government. Remote sensing data using two time series (2009 and 2014) are analyzed by means of supervised classification and visual classification.Â The analysis indicated that land use type for the paddy fields and forests (including mangroves) converted become a current land use which is inconsistent with the spatial planning regulation of Jeneponto.The use of land for settlement tends to increase through conversion of wetlands (rice fields). These conditions provide an insight that this condition will occur in the future, so that providing the direction of land use change can be better prepared and anticipated earlier.

Landuse Changes Refer to Spatial Planning Regulations at Kelara Watershed Area: An Analysis Using Geospatial Information Technology Ramlan, Andi; Neswati, Risma; Baja, Sumbangan; Nathan, Muhammad
Forum Geografi Vol 29, No 1 (2015): July 2015
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v29i1.795

The purpose of this study is to analyze land use changes in the Kelara watershed and to assess the suitability of current land use changes with the spatial planning regulation of Jeneponto within Kelara basin. This study integrates various survey techniques, remote sensing, and geographic information system technology analysis. Geospatial information used in this study consists of Landsat ETM 7+ satellite imagery (2009) and Landsat 8 (2014) as well as a number of spatial data based on vector data which is compiled by the Jeneponto Government. Remote sensing data using two time series (2009 and 2014) are analyzed by means of supervised classification and visual classification.Â The analysis indicated that land use type for the paddy fields and forests (including mangroves) converted become a current land use which is inconsistent with the spatial planning regulation of Jeneponto.The use of land for settlement tends to increase through conversion of wetlands (rice fields). These conditions provide an insight that this condition will occur in the future, so that providing the direction of land use change can be better prepared and anticipated earlier.

Perbaikan Kualitas Tanah Purna Tambang Nikel dengan Penggunaan Mikoriza dan Biochar Tandan Kosong Kelapa Sawit Angelita, Titah Kasih; Rasyid, Burhanuddin; Neswati, Risma
Jurnal Ecosolum Vol. 9 No. 1 (2020): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v9i1.7250

Nickel mining decreases the quality of soil properties, it is not suitable for agriculture so alternative technology is required such us using biochar made from oil palm empty fruit bunch and mycorrhiza. This study aims to examine the effect of biochar made from oil palm empty fruit bunch and mycorrhiza to improve the nickel post-mining soil quality. This study used two-factor factorial randomized group design. The first factor is biochar made from oil palm empty fruit bunch with 4 levels; B0 (0 g), B1 (300 g), B2 (450 g), and B3 (600 g), the second factor is mycorrhiza with 4 levels; M0 (0 g), M1 (2 g), M2 (4 g), each treatment was repeated 3 treatments so that the total experiment was 36 units. The results showed that the use of bio-ameliorant waste from oil palm empty fruit bunch with dosage of 120 g / kg, improved the chemical properties of nickel post-mining soil regarding the parameter of C-organic, pH, available phosphorus, cation exchange capacity, exchangeable aluminum, Ca-dd and Mg -dd and increasing plant growth significantly. The treatment of mycorrhiza 0.4 g / kg significantly affected the soil properties regarding the parameters of root volume, root length and percentage of root infection and improvement of soil chemical properties in available phosphorus to plants and exchangeable aluminum parameters. The treatment of biochar with dosage of 120g / kg of soil and mycorrhiza 0.4 g / kg of soil is the best interaction of mycorrhiza and biochar made from oil palm empty fruit bunch as amelioration material of post-mining soil which is characterized by the decrease of exchangeable aluminum value. The application of biochar made from oil palm empty fruit bunch and mycorrhiza can improve the nickel post-mining soil quality

Karakterisasi Lahan Sawah Bukaan Baru Hasil Konversi Lahan Hutan di Desa Kalosi Kecamatan Towuti Kabupaten Luwu Timur Felix, Irfandi; Neswati, Risma; Lias, Syamsul Arifin
Jurnal Ecosolum Vol. 9 No. 1 (2020): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v9i1.9115

The conversion of the function of productive agricultural land to non-agricultural land has taken place and is difficult to avoid as a result of the rapid rate of growth and development in an area so that agricultural production must be increased, especially food production to meet food needs with efforts to expand planting areas and the printing of new fields, but generally constrained by low-quality land. This study aims to determine the characteristics of the new openings paddy fields converted from forest land in the Village of Kalosi District Towuti for the development of irrigated paddy fields. This research method is descriptive, data collection is done by observations in the field and laboratory tests. The determination and sampling of soil in this study is purposive sampling. The results showed that the research location was suitable to be used as an irrigated field which had rainfall of Â± 2329 - 3631 mm/year, an average temperature of 27oC, a minimum temperature of 23oC, a maximum temperature of 32oC, slope 0-8%, clay texture, dusty clay, sandy clay loam, H2O soil reaction 5.6 - 5.9, CEC 35 - 60 cmol/kg clay, C-organic > 2%, salinity 0.15 - 1.20 dS m-1, base saturation > 40%, base cation can be exchanged 11 â€“ 19 cmol kg-1, the dominant type of mineral found kaolinite clay mineral and irrigation water quality has a pretty good standard of water quality.

Evaluasi Kesesuaian Lahan Kecamatan Tompobulu Kabupaten Bantaeng untuk Pengembangan Tanaman Lada (Piper nigrum L) Muhammad Iqbal; Hazairin Zubair; Rismaneswati Rismaneswati
Jurnal Ecosolum Vol. 7 No. 1 (2018): JUNI
Publisher : Universitas Hasanuddin

Potential land resources can be expected through land evaluation activities. This study aims to evaluate the suitability of Tompobulu Subdistrict of Bantaeng Regency for the development of pepper plant (Piper nigrum L). This research was conducted in Tompobulu Sub-district of Bantaeng Regency which started from March to July 2016. This research used qualitative method and to determine land suitability using simple limiting factor approach. Determination of observation points based on the overlapping results of the baseline maps that resulted in 6 units of observation (soil profile). Production data and management of pepper crop obtained from farmers of respondents amounted to 10 people. The result of the study shows that the climate type of the research area according to Oldeman is classified as B2 with the actual land suitability class which is quite suitable (S2) with 3,657 Ha and the marginal fit (S3) with 3,023 Ha with rainfall limiting factor, soil depth, Slope, and surface rocks whereas the suitability class is quite suitable (S2) with an area of 6,160 Ha and corresponding marginally (S3) with an area of 520 Ha with rainfall and soil depth limiting factors. The potential of pepper plant development in Tompobulu Sub-district of Bantaeng Regency is quite large indicated by the percentage of land area that is quite suitable (S2) (82.40%).

Karakteristik dan Produktivitas Lahan Sawah Irigasi di Kecamatan Duampanua Kabupaten Pinrang Rachmad Wunangkolu; Rismaneswati Rismaneswati; Christianto Lopulisa
Jurnal Ecosolum Vol. 8 No. 1 (2019): JUNI
Publisher : Universitas Hasanuddin

Land potential can be assessed from biophysical land suitability including soil characteristics, climate, and land management. This study aims to determine the potential of paddy fields in Duampanua Sub-District, Pinrang District for irrigated paddy field based on the land biophysical characteristics. The method was qualitative and quantitative approaches. Field surveys use purposive sampling method with 3 object observation. The land suitability class evaluation uses a simple limiting factor approach according to FAO (1976). To support the analysis of rice production data, 30 farmers were interviewed in 3 (three) observation units. The results showed the average rainfall of 2,780.2 mm/year with 9 wet months and 3 dry months categorized as type B2 (Oldeman). The results of soil samples analysis showed the characteristics of the soil with a silty clay texture, silty clay loam and clay; bulk density ranges from 1.36-1.66 g/cm3; cation exchange capacity ranges from 49.64 - 79.75 cmol/kg clay; soil pH ranges from 5.26-5.97; base saturation ranges from 36% - 46.4%; and C-organic ranges from 1.34% - 1.38%. The most dominant types of minerals are orthoclase, biotite, pyroxene, augite, opaque and clay with the symptoms of micropedological concretions and nodules. The land suitability class in the three land units for irrigated paddy rice is classified as S2nr (quite suitability in accordance with the limiting factors for nutrient retention including: base saturation, pH, and C-organic). The average productivity in land units I is 5.1 ton/ha, land unit II is 4.5 ton/ha, and in land units III 5.26 ton/ha.

Peningkatan Unsur Hara Fospor Tanah Ultisol Melalui Pemberian Pupuk Kandang, Kompos dan Pelet Yafet Hendri Pasang; Muh. Jayadi; Risma Neswati
Jurnal Ecosolum Vol. 8 No. 2 (2019): DESEMBER
Publisher : Universitas Hasanuddin

Ultisol soil has high potential for the development of dryland agriculture. However, this soil use faces obstacles because the nutrient content in Ultisol soils is generally low. This study aims to determine the effect of manure and straw compost on increasing nutrient content of phosphorus in ultisol soil. This study used a completely randomized design (CRD) with 9 levels of treatment, namely P0 = control, P1 = manure 10 tons / ha, P2 = manure 5 tons / ha, P3 = compost 5 tons / ha, P4 = compost 10 ton / ha, P5 = manure 5 tons / ha + compost 10 tons / ha, P6 = manure 10 tons / ha + compost 5 tons / ha, P7 = pellet compost 5 tons / ha, P8 = compost pellets of 10 tons / ha. The treatment was repeated 3 times. The results showed that giving 10 tons / ha of manure plus 5 tons / ha of compost had a significant effect on reducing Al-dd content, and increasing P-available, pH, base saturation, cation exchange capacity and C-organicon Ultisol soil. Giving pellet fertilizer 10 tons / ha gives a real influence on the growth of maize plants.

Karakterisasi Lahan Sawah Bukaan Baru Hasil Konversi Lahan Hutan di Desa Kalosi Kecamatan Towuti Kabupaten Luwu Timur Irfandi Felix; Risma Neswati; Syamsul Arifin Lias
Jurnal Ecosolum Vol. 9 No. 1 (2020): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v9i1.9115

The conversion of the function of productive agricultural land to non-agricultural land has taken place and is difficult to avoid as a result of the rapid rate of growth and development in an area so that agricultural production must be increased, especially food production to meet food needs with efforts to expand planting areas and the printing of new fields, but generally constrained by low-quality land. This study aims to determine the characteristics of the new openings paddy fields converted from forest land in the Village of Kalosi District Towuti for the development of irrigated paddy fields. This research method is descriptive, data collection is done by observations in the field and laboratory tests. The determination and sampling of soil in this study is purposive sampling. The results showed that the research location was suitable to be used as an irrigated field which had rainfall of ± 2329 - 3631 mm/year, an average temperature of 27oC, a minimum temperature of 23oC, a maximum temperature of 32oC, slope 0-8%, clay texture, dusty clay, sandy clay loam, H2O soil reaction 5.6 - 5.9, CEC 35 - 60 cmol/kg clay, C-organic > 2%, salinity 0.15 - 1.20 dS m-1, base saturation > 40%, base cation can be exchanged 11 – 19 cmol kg-1, the dominant type of mineral found kaolinite clay mineral and irrigation water quality has a pretty good standard of water quality.

EVALUASI KEMAMPUAN LAHAN PADA LAHAN PERTANIAN DI KABUPATEN TAKALAR: Analysis of Land Capability Farmland in Takalar Regency Tegar Ilham; Rismaneswati; Muhammad Nathan
Jurnal Ecosolum Vol. 10 No. 2 (2021): DESEMBER
Publisher : Universitas Hasanuddin

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The dry land and paddy fields in Takalar Regency are quite extensive which have the potential to support efforts to maintain food security. Land potential can be estimated based on the land capability class. This study aims to determine the potential of dry land and paddy fields in Takalar Regency by using the land capability evaluation method. This research was conducted in Takalar Regency using a descriptive survey method. The field survey used the free survey method on several land units in paddy fields and dry land. Socio-economic data were collected by conducting interviews with farmers in each unit of land analysis. Mapping of land capability classes using Arc-GIS 10.3 software. The study used a simple, qualitative bounding approach developed by USDA (1975) with the criteria for land capability by Arsyad (2010). This study shows that on dry land there are several land capability classes with their respective sub-classes, namely IIIes, IIItews, IVt, IVw, VIt, and VIIt. In paddy fields, there are land grade classes IIIes, IIIews and IVw. Based on the results of the research, it can be concluded that on dry land there is a land capability class, there is a land capability class III , class IV, class VI, and class VI with the dominant limiting factors, namely slopes, erosion, and waterlogging (drainage and flood threat). Meanwhile, the paddy fields consist of class III, and class IV with the dominant limiting factors, namely erosion, drainage, and soil depth.

IMPACT OF PANDEMIC COVID-19 ON ENVIRONMENTAL AND AGRICULTURE IN THE PROVINCE OF GORONTALO Iswan Dunggio; Sofyan Abdullah; Risma Neswati
Jurnal Ecosolum Vol. 10 No. 1 (2021): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v10i1.14235

Corona virus disease Covid-19 is a deadly virus and was first discovered in Wuhan, China.This virus has spread throughout the world and has an impact on the environment and Agriculture.The impact on the environment is an increase in waste congeries, a decrease in energy consumption, a decrease in air pollution, while the impact of Covid-19 on the Indonesian economy includes negative economic growth, an increase in the number of poor people and an increase in unemployment. This study aims to analyze the impact of Covid-19 on the environment and agriculture in Gorontalo Province.This study uses a qualitative approach where data is collected from interviews and literature searches from official sources.The results showed that the impact of Covid-19 on environmental conditions in Gorontalo Province, among others, was an increase in waste production by 9.17% during Covid-19 in 2020, and an increase in the use of medical waste for Covid-19 by 33.3% in the fourth quarter of 2020.The use of electrical energy has increased by 6.7% during the Covid-19 pandemic in 2020. As for impact on agriculture contribution of the agricultural sector to GDP was relatively stable, rice production increase 4.1%, but fish production fell by 0.18% and coconut fell 0.11%. This condition can raise farmers term of trade during the 3rd and 4th quarters in 2020

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