scholarly journals SPATIAL DISTRIBUTION OF SOME CHEMICAL CHARACTERISTICS OF AN ACID SULFATE SOIL-AFFECTED BRACKISHWATER PONDS IN THE COASTAL AREA OF LUWU REGENCY SOUTH SULAWESI PROVINCE

2014 ◽  
Vol 9 (1) ◽  
pp. 73
Author(s):  
Erna Ratnawati ◽  
Akhmad Mustafa
Keyword(s):  
Spatial Distribution ◽  
Coastal Area ◽  
Soil Nutrient ◽  
Simple Random Sampling ◽  
Soil Characteristics ◽  
Chemical Characteristics ◽  
Acid Sulfate Soil ◽  
Acid Sulfate ◽  
South Sulawesi ◽  
Brackishwater Pond

Spatial distribution of brackishwater pond soil has important role in the system of bioenvironment including brackishwater pond environment. This research was aimed to determine the spatial distribution of some chemical characteristics of an acid sulfate soil-affected brackishwater pond in coastal area of Luwu Regency South Sulawesi Province, Indonesia. ALOS AVNIR-2 images (acquisition 16 May 2008, 16 October 2008, 17 September 2009) were integrated with Indonesian Topographic maps to obtain base map. Sampling soil points were determined by simple random sampling in 104 points for two different soil depths i.e. 0-0.2 m and 0.5-0.7 m. A total of 18 soil chemical characteristics was measured in the field and analyzed in the laboratory. Geostatistic using kriging method in the ArcGIS 9.3 software was used to interpolate the data. The results of this study indicated that in general pond soil chemical characteristics in Luwu Regency could be categorized with high variability or relatively heterogenic wi th the value of var iation coefficient more than 36%. The soil characteristics that explain acidity had shown similar pattern in spatial distribution as well as other soil characteristics with soil nutrient. The high value of pH and low value of PO4 were generally found in the northern part of Luwu Regency, including East Lamasi, East Walenrang, Bua, and Ponrang Subdistricts. It is recommended that soil management in brackishwater ponds of Luwu Regency could be based on soil chemical characteristics so its could improve the production through minimizing the input, increasing carrying capacity, and avoiding environmental degradation.

scholarly journals KARAKTERISTIK, KESESUAIAN, DAN PENGELOLAAN LAHAN TAMBAK DI KOTA PEKALONGAN PROVINSI JAWA TENGAH

2016 ◽  
Vol 5 (3) ◽  
pp. 505 ◽  
Author(s):  
Rachmansyah Rachmansyah ◽  
Akhmad Mustafa ◽  
Mudian Paena
Keyword(s):  
Land Management ◽  
Paddy Field ◽  
Coastal Area ◽  
Sea Water ◽  
Saline Water ◽  
C:N Ratio ◽  
Land Suitability ◽  
Geographical Information ◽  
Acid Sulfate Soil ◽  
Acid Sulfate

Kota Pekalongan memiliki lahan tambak yang produktivitas tambaknya masih tergolong relatif rendah. Oleh karena itu, dilakukan penelitian untuk mengetahui karakteristik lahan dalam upaya menentukan kesesuaian dan pengelolaan lahan untuk budidaya tambak demi peningkatan produktivitas tambak di Kota Pekalongan. Faktor yang dipertimbangkan dalam mengetahui karakteristik lahan adalah: tanah, topografi, hidrologi, vegetasi, dan iklim. Analisis spasial dalam Sistem Informasi Geografis digunakan dalam penentuan kesesuaian lahan untuk budidaya tambak. Pengelolaan lahan ditentukan berdasarkan karakteristik lahan yang disesuaikan dengan teknologi dan komoditas yang dapat diaplikasikan di tambak. Tanah tambak di Kota Pekalongan tergolong tanah aluvial non-sulfat masam yang tidak memiliki potensi kemasaman tanah yang tinggi dan sebagian kecil tanah sulfat masam. Sumber air laut untuk tambak tergolong agak keruh dan salinitas air tambak cukup bervariasi sebagai akibat adanya sumber air tawar yang berasal dari Sungai Pekalongan dan sodetan. Vegetasi bakau adalah jenis vegetasi yang dominan di kawasan tambak sebab adanya Program GERHAN (Gerakan Nasional Rehabilitasi Hutan dan Lahan) di Kota Pekalongan. Curah hujan di Kota Pekalongan sebesar 2.300 mm/tahun di mana curah hujan yang rendah dijumpai pada bulan Juli sampai Oktober. Di kawasan pesisir Kota Pekalongan dijumpai tambak, sawah, sawah terintrusi, dan pemukiman yang luasnya masing-masing 332,29; 372,53; 183,83; dan 619,73 ha. Dari luas tambak yang ada di Kota Pekalongan, yaitu 331,292 ha ternyata tidak ada tambak yang tergolong sangat sesuai (kelas S1), 191,856 ha tergolong cukup sesuai (kelas S2) dan 140,436 ha tergolong kurang sesuai (kelas S3). Pada areal yang mengandung unsur atau senyawa penyebab kemasaman yang tinggi disarankan untuk melakukan upaya perbaikan tanah terlebih dahulu berupa remediasi, pemberian pupuk yang mengandung nitrogen pada areal yang memiliki rasio C:N tanah yang tinggi serta pemberian pupuk kandang pada tanah yang mengandung liat lebih besar 60% dan bahan organik kurang dari 8%.Pekalongan City has brackishwater ponds with low productivity. Hence, a survey was conducted to know land characteristics as an effort to determine land suitability and land management to increase the productivity of brackishwater ponds in Pekalongan City, Central Java Province. Factors considered to determine the characteristics of land were soil, topography, hydrology, vegetation, and climate. Spatial analysis in Geographical Information System was used to determine land suitability for brackishwater ponds. Land management was determined based on the characteristics of land conditioned to the types of technology and commodity applied in the brackishwater ponds. Soil of brackishwater ponds in Pekalongan City was dominated by alluvial non-acid sulfate soil in large areas and acid sulfate soil in small areas. Source of sea water for brackishwater ponds has high turbidity and high variation of salinity due to presence of freshwater supply from Pekalongan River and man made canals. Mangrove vegetation is dominant in the coastal area of Pekalongan City, because the presence of GERHAN (National Action for Forest and Land Rehabilitation) Program. The average of rainfall in Pekalongan City is 2,230 mm/year, where low of rainfall occurrs in July until October. The result revealed that the coastal area of Pekalongan City had brackishwater ponds, paddy field, paddy field intruded saline water and settlement of 332.29 ha; 372.53 ha; 183.83ha; and 619.73 ha, respectively. From the total brackishwater ponds in Pekalongan City i.e. 331.292 ha, there were no brackishwater ponds classified as highly suitable (S1 class), but it was found moderately suitable or S2 class (191.856 ha) and marginally suitable or S3 class (140,436 ha). It is suggested to conduct improving soil quality first, including remediation of the areas that contain elements or compounds causing the high acidity of soil, fertilizing with fertilizer containing nitrogen in the areas that have high C:N ratio and applying manure in the soils that contain clay more than 60% and organic matter less than 8%. 

scholarly journals SPATIAL DISTRIBUTION OF BRACKISHWATER POND SOIL CHARACTERISTICS IN PEKALONGAN CITY CENTRAL JAVA PROVINCE

2011 ◽  
Vol 6 (1) ◽  
pp. 91
Author(s):  
Andi Indrajaya Asaad ◽  
Akhmad Mustafa
Keyword(s):  
Spatial Distribution ◽  
Soil Depth ◽  
Research Result ◽  
Soil Characteristics ◽  
Kriging Interpolation ◽  
Total N ◽  
Central Java ◽  
Kriging Interpolation Method ◽  
Brackishwater Pond ◽  
Central Java Province

Spatial distribution of brackishwater pond soil has a vital role in the system of bioenvironment including brackishwater pond environment. This research was aimed to determine the spatial distribution of brackishwater pond soil characteristics in Pekalongan City, Central Java Province. A total of 59 sampling points each with two different soil depth samplings were determined by simple random method. A total of 21 soil characteristics were measured in the field and analyzed further in the laboratory. Geostatistic with Kriging Interpolation method in the ArcGIS 9.3 software were used to depict the distribution of the data across the landscape. Furthermore, the spatial distribution was presented by using ALOS AVNIR-2 image. Research result indicates that in general, pond soil in Pekalongan City can be classified as soil with high variability or relatively heterogenic with the value of variation coefficient more than 36%. Soil characteristics which have similar pattern of spatial distribution are acid sulfate soil and soil nutrient content. High value of pH, organic matter, and total-N of soil, and on the other hand, low value of PO4 were generally found in the pond area of Krapyak Lor Village, while in Pekalongan City, it was found high clayish soil content but relatively homogenous. It is recommended that pond management must be based on soil characteristics which are different from one area to another. The soil characteristics itself can be drawn and assessed through spatial distribution.

scholarly journals Identification of sago land and its potential for development in the Coastal Area of North Luwu Regency

2021 ◽  
Vol 886 (1) ◽  
pp. 012042
Author(s):  
W A Kamma ◽  
D A Rampisela ◽  
B Rasyid
Keyword(s):  
Coastal Area ◽  
Chemical Properties ◽  
Image Data ◽  
Soil Characteristics ◽  
High Yield ◽  
The North ◽  
South Sulawesi ◽  
Physical And Chemical ◽  
Properties Of Soil ◽  
And Chemical Properties

Abstract Indonesia is the largest sago producer in the world. The existence of sago as a source of food in Indonesia does not show an increased area of plant growing, instead, it tends to shrink from year to year. Only areas along the coast did not have significant land-use change due to limited soil characteristics for the cultivation of other types of plants, namely soil characteristics that are often waterlogged for months. The coastal area of North Luwu Regency is the area with the largest sago planting area in South Sulawesi. This makes sago a potential plant to be developed in the coastal area of North Luwu. This research aims to produce data on the characteristics of sago land and its development potential in the coastal area of the North Luwu Regency. The method was carried out in the form of collecting the list of coastal villages in North Luwu from Badan Pusat Statistik data and image data, then conducting field verification, analyzing the physical and chemical properties of soil and water, and conducting interviews to determine the potential for sago development based on the production of sago plants. The results of this research indicate that the land characteristics in the coastal area of North Luwu are very suitable for sago plants because they represented a high yield of wet sago starch production which reaches more than 250 kg/tree. It can be concluded that the characteristics of sago land in the coastal area of North Luwu Regency are very suitable for sago plants because they can grow and produce very well.

Spatial distribution and management of total actual acidity in an acid sulfate soil environment, McLeods Creek, northeastern NSW, Australia

CATENA ◽  
2003 ◽  
Vol 51 (1) ◽  
pp. 61-79 ◽  
Author(s):  
J Smith ◽  
P van Oploo ◽  
H Marston ◽  
M.D Melville ◽  
B.C.T Macdonald
Keyword(s):  
Spatial Distribution ◽  
Soil Environment ◽  
Acid Sulfate Soil ◽  
Acid Sulfate ◽  
Actual Acidity

scholarly journals KELAYAKAN LAHAN PERTAMBAKAN DI TANAH SULFAT MASAM, KABUPATEN LUWU TIMUR, SULAWESI SELATAN

2006 ◽  
Vol 1 (2) ◽  
pp. 281
Author(s):  
Brata Pantjara ◽  
Aliman Aliman ◽  
Abdul Mansyur ◽  
Utojo Utojo
Keyword(s):  
Brackish Water ◽  
Secondary Data ◽  
Land Suitability ◽  
Primary Data ◽  
Acid Sulfate Soil ◽  
Acid Sulfate ◽  
South Sulawesi ◽  
Water Pond ◽  
Brackish Water Aquaculture ◽  
Brackish Water Pond

Salah satu lahan yang bisa dikembangkan untuk budi daya tambak adalah tanah sulfat masam. Di Indonesia potensinya cukup luas dan umumnya lahan semacam ini berada di kawasan pesisir. Penelitian ini bertujuan untuk mengetahui potensi kelayakan lahan tanah sulfat masam untuk pertambakan dan optimalisasi pemanfaatannya berdasarkan tingkat kesesuaian lahan dan daya dukung lingkungan. Penelitian dilakukan di Kabupaten Luwu Timur, Sulawesi Selatan. Metode penelitian dengan melakukan survai untuk mendapatkan data primer. Sedangkan data sekunder diperoleh dari instansi terkait dan peta yang diperlukan untuk proses analisis dengan Sistem Informasi Geografis (SIG). Analisis data melalui tumpang susun dari beberapa peta dan data primer pada setiap pengamatan dengan mempertimbangkan pembobotan dan skala penilaian untuk mendapatkan nilai skoring dalam menentukan kesesuaian lahan budi daya tambak. Hasil analisis kelayakan lahan untuk tambak didapatkan nilai potensi dan kelayakan seluas 5.617,9 ha yang terdiri atas 709,4 ha kelayakan tinggi; 3.947,7 ha kelayakan sedang; dan 960,7 ha kelayakan rendah.One of land that can be developed for brackish water aquaculture is acid sulfate soil. The potency of acid sulfate soil in Indonesia is relatively large and generally found in coastal area. The objectives of this research to know the potency and land suitability of acid sulfate soil for brackish water aquaculture and optimal utilization based on land suitability level and its carrying capacity. This research was conducted at Malili Sub District; East Luwu Regency, South Sulawesi. Surveys have been done collected primary data. while secondary data was obtained from related Institution and needed maps for Geographic Information System (GIS) analysis, with overlying maps and primary data in each station observation with considering and assessment scale value of determining land suitability for brackish water pond. The result of maps analysis had been obtained the potency and land suitability at Malili Sub district were 5,617.9 ha consisted of 709.4 ha (high suitability); 3,947.7 ha (moderate suitability); and 960.7 ha (low suitability).

PEUBAH KUALITAS AIR YANG MEMPENGARUHI PERTUMBUHAN RUMPUT LAUT (Gracilaria verrucosa) DI TAMBAK TANAH SULFAT MASAM KECAMATAN ANGKONA KABUPATEN LUWU TIMUR PROVINSI SULAWESI SELATAN

2009 ◽  
Vol 4 (1) ◽  
pp. 125
Author(s):  
Akhmad Mustafa ◽  
Rachmansyah Rachmansyah ◽  
Dody Dharmawan Trijuno ◽  
Ruslaini Ruslaini
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Ammonium Phosphate ◽  
Gracilaria Verrucosa ◽  
Acid Sulfate Soils ◽  
Acid Sulfate Soil ◽  
Acid Sulfate ◽  
Independent Variables ◽  
Water Quality Variables ◽  
Sulfate Soils

Rumput laut (Gracilaria verrucosa) telah dibudidayakan di tambak tanah sulfat masam dengan kualitas dan kuantitas produksi yang relatif tinggi. Oleh karena itu, dilakukan penelitian yang bertujuan untuk mengetahui peubah kualitas air yang mempengaruhi laju pertumbuhan rumput laut di tambak tanah sulfat masam Kecamatan Angkona Kabupaten Luwu Timur Provinsi Sulawesi Selatan. Pemeliharaan rumput laut dilakukan di 30 petak tambak  terpilih selama 6 minggu. Bibit rumput laut dengan bobot 100 g basah ditebar dalam hapa berukuran 1,0 m x 1,0 m x 1,2 m. Peubah tidak bebas yang diamati adalah laju pertumbuhan relatif, sedangkan peubah bebas adalah peubah kualitas air yang meliputi: intensitas cahaya, salinitas, suhu, pH, karbondioksida, nitrat, amonium, fosfat, dan besi. Analisis regresi berganda digunakan untuk menentukan peubah bebas yang dapat digunakan untuk memprediksi peubah tidak bebas. Hasil penelitian menunjukkan bahwa laju pertumbuhan relatif rumput laut di tambak tanah sulfat masam berkisar antara 1,52% dan 3,63%/hari dengan rata-rata 2,88% ± 0,56%/hari. Di antara 9 peubah kualitas air yang diamati ternyata hanya 5 peubah kualitas air yaitu: nitrat, salinitas, amonium, besi, dan fosfat yang mempengaruhi pertumbuhan rumput laut secara nyata. Untuk meningkatkan pertumbuhan rumput laut di tambak tanah sulfat masam Kecamatan Angkona Kabupaten Luwu Timur dapat dilakukan dengan pemberian pupuk yang mengandung nitrogen untuk meningkatkan kandungan amonium dan nitrat serta pemberian pupuk yang mengandung fosfor untuk meningkatkan kandungan fosfat sampai pada nilai tertentu, melakukan remediasi untuk menurunkan kandungan besi serta memelihara rumput laut pada salinitas air yang lebih tinggi, tetapi tidak melebihi 30 ppt.Seaweed (Gracilaria verrucosa) has been cultivated in acid sulfate soil-affected ponds with relatively high quality and quantity of seaweed production. A research has been conducted to study water quality variables that influence the growth of seaweed in acid sulfate soil-affected ponds of Angkona Sub-district East Luwu Regency South Sulawesi Province. Cultivation of seaweed was done for six weeks in 30 selected brackishwater ponds. Seeds of seaweed with weight of 100 g were stocked in hapa sized 1.0 m x 1.0 m x 1.2 m. Dependent variable that was observed was specific growth rate, whereas independent variables were water quality variables including light intensity, salinity, temperature, pH, carbondioxide, nitrate, ammonium, phosphate, and iron. Analyses of multiple regressions were used to determine the independent variables which could be used to predict the dependent variable. Research result indicated that relative growth rate of seaweed in acid sulfate soils-affected brackishwater ponds ranged from 1.52% to 3.63%/day with 2.88% ± 0.56%/day in average. Among nine observed water quality variables, only five variables namely: nitrate, salinity, ammonium, phosphate and iron influence significantly on the growth of seaweed in acid sulfate soils-affected brackishwater ponds. The growth of seaweed in acid sulfate soils-affected brackishwater ponds of Angkona District East Luwu Regency, can be improved by using nitrogen-based fertilizers to increase ammonium and nitrate contents and also fertilizers which contain phosphorus to improve phosphate content to a certain level. Pond remediation to decrease iron content and also rearing seaweed at higher salinity (but less than 30 ppt) can also be alternatives to increase the growth of seaweed.

IMPLEMENTATION OF SUSTAINABLE AQUACULTURE AS A MODEL OF SATO UMI TO IMPROVE PRODUCTIVITY WITHIN COASTAL AREA OF INDONESIA

2017 ◽  
Author(s):  
Suhendar I Sachoemar ◽  
Suhendar I Sachoemar ◽  
Tetsuo Yanagi ◽  
Tetsuo Yanagi ◽  
Mitsutaku Makino ◽  
...  
Keyword(s):  
Coastal Area ◽  
Sustainable Aquaculture ◽  
The South ◽  
West Java ◽  
The Public ◽  
Central Java ◽  
South Sulawesi ◽  
Similar Program ◽  
Technology Dissemination

The development of sustainable model of aquaculture by applying Sato Umi concept within coastal area of Indonesia has expanded from the center of first experiment in the northern coastal area of west Java to central Java (western Indonesia) and Bantaeng in the South Sulawesi of central Indonesia. The similar program has also been proposed for Maluku Province in the eastern part of Indonesia. In the next 5 years, Indonesia is developing the Techno Parks Program in some areas, in which aquaculture and fisheries activities development on the base of Sato Umi concept in the coastal area are involves in this program. The development of Techno Parks are directed as a center application of technology to stimulate the economy in the regency, and a place of training, apprenticeship, technology dissemination center, and center business advocacy for the public. Hopely, Sato Umi concept that has a similar spirit with Techno Park can be applied to support the implementation of Techno Park program in Indonesia

Aboveground Biomass of Reaumuria soongorica Shrub Effect on Soil Moisture and Nutrient Spatial Distribution in Arid and Semi-Arid Region

2013 ◽  
Vol 726-731 ◽  
pp. 3803-3806
Author(s):  
Bing Ru Liu ◽  
Jun Long Yang
Keyword(s):  
Spatial Distribution ◽  
Soil Moisture ◽  
Moisture Content ◽  
Aboveground Biomass ◽  
Soil Moisture Content ◽  
Plant Biomass ◽  
Soil Layer ◽  
Soil Nutrient ◽  
Desert Plant ◽  
Important Species

In order to revel aboveground biomass of R. soongorica shrub effect on soil moisture and nutrients spatial distribution, and explore mechanism of the changes of soil moisture and nutrients, soil moisture content, pH, soil organic carbon (SOC) and total nitrogen (TN) at three soil layers (0-10cm,10-20cm, and 20-40cm) along five plant biomass gradients of R. soongorica were investigated. The results showed that soil moisture content increased with depth under the same plant biomass, and increased with plant biomass. Soil nutrient properties were evidently influenced with plant biomass, while decreased with depth. SOC and TN were highest in the top soil layer (0-10 cm), but TN of 10-20cm layer has no significant differences (P < 0.05). Moreover, soil nutrient contents were accumulated very slowly. These suggests that the requirement to soil organic matter is not so high and could be adapted well to the desert and barren soil, and the desert plant R. soongorica could be acted as an important species to restore vegetation and ameliorate the eco-environment.

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