scholarly journals Evaluasi Kesesuaian Lahan Tambak Ikan Bandeng Di Desa Salemba Kecamatan Ujung Loe Kabupaten Bulukumba

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Nasrul Nasrul
Keyword(s):  
Dissolved Oxygen ◽  
Land Suitability ◽  
Land Area ◽  
Marginal Fit ◽  
Research Results ◽  
Temperature Range ◽  
Average Rainfall ◽  
Texture Class

Research results showed the characteristics of land on the site of the research includes average rainfall is 1872.2 mm per year. Milkfish farmed land with temperature range between 20-30 ° c. the brightness of the embankment between 19-45 cm. salinity between 6-21 mg/L.  The degree of Acidity or pH of the water between 6.90-7,48. Dissolved oxygen (DO) between the 9.28-12, 16 mg/l. Orthophosphat (PO_4) between 0,586-1,864 mg/l. nitrate (NO3) between 0.001-0.020 mg/l. dominant clay texture class. The degree of Acidity (pH) of between 5.5-6.0. Results of the study i.e. land kesesuian classes consists of pretty fit (S2) with land area of farmed land suitability 145.96 ha and consists of marginal fit (S3) with land area of ponds 45.62 ha. The conclusion to the suitability of the land farmed whitefish yanitu pretty fit (S2) and corresponding marginal (S3) factor in the a barrier suitability of land embankment based on variable salinity, dissolved oxygen/brightness, DO, temperature, nitrate. 

KARAKTERISTIK DAN PRODUKTIVITAS LAHAN SAWAH IRIGASI DI KECAMATAN DUAMPANUA KABUPATEN PINRANG

2019 ◽  
Vol 8 (1) ◽  
pp. 34
Author(s):  
Rachmad Wunangkolu ◽  
Rismaneswati Rismaneswati ◽  
Christianto Lopulisa
Keyword(s):  
Nutrient Retention ◽  
Exchange Capacity ◽  
Land Suitability ◽  
Base Saturation ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Silty Clay ◽  
Field Surveys ◽  
Observation Units ◽  
Average Rainfall

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.

scholarly journals Reevaluation of Land Fitness For Soybean Plant in Kabamatan Stabat, Langkat District

2020 ◽  
Vol 4 (1) ◽  
pp. 15-20
Author(s):  
Leni Handayani ◽  
A Rauf ◽  
Rahmawaty Rahmawaty ◽  
T Supriana
Keyword(s):  
Soil Texture ◽  
Land Suitability ◽  
Limiting Factors ◽  
Organic N ◽  
Limiting Factor ◽  
Soybean Plant ◽  
Marginal Fit ◽  
Suitability Assessment ◽  
Soybean Plants ◽  
Land Suitability Assessment

A decrease in the area of soybean farming has an effect on reducing soybean production from year to year so that it has not been able to meet the needs of national soybean consumption. Land suitability assessment is an effort to be able to optimize land use. In the process of assessing land suitability manually, it is considered inaccurate. The purpose of this study was to determine the land suitability class for soybean plants. The land suitability classification system used is the FAO land suitability classification classified at the sub-class level. Land suitability evaluation uses a matching system, as well as comparing the characteristics of land with plant growing community formulated in the technical evaluation of land guidelines for agricultural commodities. In the matching process Leibig's minimum law is used to determine the limiting factors that will affect the suitability of the class and sub-class of the land. Requirements for growing plants become kiteria in conformity evaluation. The results showed that the limiting factors of land suitability for soybean plants that had to be improved were temperature, rainfall, soil texture, C-Organic, N-Total and P-Available soil. The limiting factor of temperature and soil texture cannot be improved so that the marginal fit class (S3) on actual land suitability remains marginal fit (S3) in terms of potential land suitability.

scholarly journals Mapping land use suitability for development of recharge wells in the Ciliwung watershed, Indonesia

2017 ◽  
Vol 12 (1) ◽  
pp. 166-178
Author(s):  
Nyoman Suwartha ◽  
Ikhwan Maulani ◽  
Cindy Rianti Priadi ◽  
Elzavira Felaza ◽  
Tri Tjahjono ◽  
...  
Keyword(s):  
Land Use ◽  
Land Suitability ◽  
Rainfall Runoff ◽  
Runoff Reduction ◽  
Mathematical Simulations ◽  
Average Rainfall ◽  
Weighted Data ◽  
The Impact ◽  
Technical Recommendations ◽  
Selection Of

Rapid population growth and the need to mitigate the impact of rainfall-runoff has made groundwater conservation a significant environmental issue in Indonesia's Ciliwung Watershed. The availability of recharge wells in developed areas is essential for groundwater conservation and runoff reduction. Selection of suitable locations for the construction of recharge wells depends on a combination of factors such as topography, soil layers, land use, and climatology. This study of land suitability for recharge well development in the Ciliwung Watershed, an area of heterogenous land use, employed GPS-based weighted data on technical geology, soil type, soil hydrology group, groundwater level, slope, average rainfall, and land use. Mathematical simulations were performed to develop a land suitability map. The findings indicate that only 2% of the total area (in Cisarua, Bogor) is ideal for the construction of recharge wells, and that 48% of existing recharge wells in the Jakarta area are situated in a suitable zone. The results provide a basis for technical recommendations for future construction of recharge wells in the Ciliwung Watershed.

Study on Preparation of the High-Density Ammonium Polyvanadate

2013 ◽  
Vol 779-780 ◽  
pp. 113-116
Author(s):  
Zhen Xiu Wu ◽  
Zhao Hui Sun ◽  
Tao Zhang
Keyword(s):  
Particle Size ◽  
Loss Rate ◽  
Fine Particles ◽  
High Density ◽  
Research Results ◽  
Temperature Range ◽  
Fine Grained ◽  
Laser Particle Size Analyzer ◽  
Particle Size Analyzer

The high-density ammonium polyvanadate was prepared by means of fine-grained ammonium polyvanadate (APV) produced in vanadium plant. The effects of amount of fine particles, temperature and pH of vanadium solution on preparation of high-density ammonium polyvanadate were investigated. The research results showed that the density of APV could be achieved 0.88g/cm3 under the conditions of addition of 13-31% fine particles, temperature range from 70°C to 100°C and the pH of vanadium solution range from 2.5 to 4, but loss rate of vanadium was the lowest. Moreover, the particle size of high-density ammonium polyvanadate mainly distributes in range of 10 ~ 90μm and is significantly larger than that of the fine APV particles, on the basis of results of the laser particle size analyzer.

scholarly journals DAYA DUKUNG DAN POTENSI LAHAN UNTUK PENGEMBANGAN TANAMAN PANGAN DI KAWASAN SUB-DAERAH ALIRAN SUNGAI PANASEN KABUPATEN MINAHASA

2016 ◽  
Vol 12 (2A) ◽  
pp. 383
Author(s):  
Dolfie D. D. Tinggogoy ◽  
Jailani ., Husain ◽  
Sandra ., Pakasi
Keyword(s):  
Carrying Capacity ◽  
Agricultural Land ◽  
Sandy Loam ◽  
Land Suitability ◽  
Survey Method ◽  
Limiting Factor ◽  
Food Crops ◽  
Average Rainfall ◽  
Potato Crops ◽  
Potential Land

The aims of this reserch was analyzing the carrying capacity of the land based on food crops productivity in Panasen sub-watershed areas Minahasa regency, Analyzing land suitability clases for food crops development in Panasen sub-watershed areas Minahasa regency, Knowing the vast potential of land that could be used for food crops development in Panasen sub-watershed areas Minahasa regency and Mapping the land potential at scale of 1: 50,000 for food crops development in Panasen sub watershed areas Minahasa regency. The research method is a survey method, methods overlay is used to create a map of a group of land based on slope maps, land use maps and soil maps. Method of matching (match) is used to determine the grade of land suitability and potential land area of each crop. Statistic methodis used for the carrying capacyti of agriculture land analyzing. The results of the research show that are the carrying capacity of agricultural land is = 2.93. Rice equivalent is 2,93 x 265 kg/ person/year is 776, 45 kg of rice/person/year. Potential land for geared the development of food crops is a rice crops is 3095.10 ha which consists of land suitability classes S3wa₂rc₁ with total area of 1777.07 ha and class S3wa₂ with total area of 1.318.03 hectares. a maize crops is 1.961,14 ha which consists of land suitability classes S3wa₁ is 755,52 ha and class S3wa₁rc₁ with total area of 1205.62 ha. The limiting factor is the heaviest average rainfall of 2357.2 mm/year (wa₁), and soil texture is sandy loam/agak kasar (rc₁). a cassava crops is 1961,14 ha which consists of land suitability classes S2wa₁,₂ with total area of 755.52 ha and class S3tc with total area of 1205.62 ha. The limiting factor is the heaviest average rainfall of 2357.2 mm / year (wa₁), the number of consecutive dry months 1,41 months / years (wa₂), the average air temperature of 21.8 ° C (tc). a sweet potato crops is 1961,14 ha with land suitability classes S3wa₁. The limiting factor heaviest air humidity average of 90.62% (wa₁). All land groups in research location included in land suitability classes are not suitable (N) for the soybean crops development.

scholarly journals Study of land suitability for rubber and cashew in the derived savanna zone of Edo State, Nigeria

2021 ◽  
Vol 6 (3) ◽  
pp. 156
Author(s):  
Lucky Agbogun ◽  
Aigboghosa Samson Umweni ◽  
Henry Kadiri ◽  
Faith Ehinomhen Okunsebor
Keyword(s):  
Research Area ◽  
Land Suitability ◽  
Area Coverage ◽  
Land Area ◽  
Mapping Unit ◽  
Soil Suitability ◽  
Derived Savanna ◽  
Suitability Maps ◽  
Edo State ◽  
Savanna Zone

This study attempted to assess the soil suitability in the derived savanna zone of Edo State, Nigeria for the cultivation of some tree crops. The research specifically aimed to evaluate soil suitability for cashew and rubber supported by suitability maps for both crops. In terms of land suitability evaluation, mapping units 1 and 2, with an area coverage of 27.4 ha of the entire research area (100 ha) were found to be marginally suitable (S3) for rubber cultivation but moderately suitable (S2) for cashew. Mapping unit 3, with area coverage of 38 ha was found to be currently not suitable (N1) for rubber but marginally suitable (S3) for cashew cultivation. Mapping unit 4 representing area coverage of 34.7 ha was found to be permanently not suitable (N2) for rubber cultivation but marginally suitable (S3) for cashew. Thus, technically, rubber can only be cultivated in that land at marginal level with an expected productivity of 27.4 ha (27.4 %). Cashew can be cultivated at moderate and marginal levels with an expected yield of 27.4 ha (27.4 %) and 72.6 ha (72.6 %), respectively, of the total land area. Thus, the preferred crop for the studied is cashew. It is recommended that for any significant investment in cultivation of this crop, the priority is the moderate levels with an expected productivity of 27.4 ha or 27.4 % of total land area.

scholarly journals Analysis on the factors of grassland area change in Inner Mongolia

2020 ◽  
Vol 29 (1) ◽  
pp. 144-149
Author(s):  
Burenjargal Tangudai ◽  
Fang Fang
Keyword(s):  
Inner Mongolia ◽  
Animal Husbandry ◽  
Distribution Characteristics ◽  
Land Area ◽  
Land Occupation ◽  
Area Change ◽  
Related Research ◽  
Research Results ◽  
Reduction Problem ◽  
Characteristics And Utilization

With the development of China’s industrialization, the reduction problem of grassland area caused by unglazed land occupation has become increasingly prominent. The driving factors of the decrease of forage land area gradually changed from the beginning of livestock overloading to the non-animal husbandry factors such as industrial occupation. On the basis of classification and summary of the related research results of the change of pasture grassland resources, this paper analyses the distribution characteristics and utilization status of grassland resources in China. Өвөр монголын өөртөө засах орны бэлчээрийн талбайн өөрчлөлтийг түргэсгэгч хүчин зүйлсийн судалгаа Өвөр монголын бэлчээрийн талбай жил бүр буурах хандлагатай байна. Гэвч цаг хугацааны ялгаатай үеүдэд нөлөөлөгч хүчин зүйлс нь өөр өөр байсаар иржээ. Энэхүү өгүүлэл нь БНХАУ- ын хойд нутгийн төлөөлөл бүс болохуйц Өвөр Монголыг судалгааны объёктоор сонгон, 1997-2015 оны тоо материалд тулгаарлан, бэлчээрийн нөөц, хэрэглээний өөрчлөлтийн талаар судалсан судалгааны ажлуудын үр дүнг ангилан нэгтгэж математик, статистикийн тооцооллын аргыг ашиглан, эдийн засаг, нийгмийн хөгжлийн долоон үзүүлэлтийг сонгон бэлчээрийн өөрчлөлтийн түргэсгэгч механизмыг судалсан болно.  Түлхүүр үг: бэлчээрийн талбайн өөрчөлт, түргэсгэгч хүчин зүйл, хүчин зүйлийн шинжилгээ

scholarly journals ĐÁNH GIÁ THỰC TRẠNG CÔNG TÁC CẤP GIẤY CHỨNG NHẬN QUYỀN SỬ DỤNG ĐẤT TẠI HUYỆN PHONG ĐIỀN, TỈNH THỪA THIÊN HUẾ

2020 ◽  
Vol 4 (3) ◽  
pp. 2170-2178
Author(s):  
Nguyễn Tiến Nhật ◽  
Nguyễn Văn Bình ◽  
Trần Văn Sơn ◽  
Nguyễn Xuân Vững
Keyword(s):  
Land Use ◽  
Legal System ◽  
Land Area ◽  
Research Results ◽  
Natural Land ◽  
The Status ◽  
Administrative Units

Nghiên cứu được thực hiện tại huyện Phong Điền, tỉnh Thừa Thiên Huế nhằm đánh giá được thực trạng công tác cấp giấy chứng nhận quyền sử dụng đất tại huyện Phong Điền, tỉnh Thừa Thiên Huế giai đoạn 2014-2018, trên cơ sở đó tìm ra những khó khăn, vướng mắc và đề xuất các giải pháp nâng cao hiệu quả cấp giấy chứng nhận quyền sử dụng đất cho hộ gia đình, cá nhân. Kết quả nghiên cứu cho thấy: (i) Huyện Phong Điền có 16 đơn vị hành chính, trong đó gồm 01 thị trấn Phong Điền và 15 xã, với tổng diện tích đất tự nhiên là 94.822,79 ha, chiếm 18,89% diện tích đất tự nhiên của tỉnh Thừa Thiên Huế. (ii) Trong giai đoạn 2014 - 2018, trên địa bàn huyện Phong Điền đã cấp được 5.991 giấy chứng nhận, với tổng diện tích là 1.382,1 ha đạt 4,30% về số thửa và 6,59% về diện tích so với tổng số giấy chứng nhận cần cấp. (iii) Trên cơ sở phân tích những khó khăn, hạn chế trong công tác cấp giấy chứng nhận cho hộ gia đình, cá nhân trên địa bàn, nghiên cứu cũng đã đề xuất được các giải pháp nhằm nâng cao hiệu quả thực hiện công tác này ở địa phương. Trong đó, chú trọng vào các giải pháp về hoàn thiện hệ thống pháp luật và tổ chức thực hiện. ABSTRACT This study was conducted in Phong Dien district, Thua Thien Hue province to assess the status of issuance of land use right certificates in Phong Dien district, Thua Thien Hue province in the period of 2014 - 2018, thereby, finding difficulties and obstacles and proposing solutions to improve the efficiency of issuance of land use right certificates for households and individuals in Phong Dien district, Thua Thien Hue province. The research results showed that (i) Phong Dien district has had 16 administrative units, including Phong Dien town and 15 communes, with a total natural land area of 94.822,79 ha, accounting for 18.89% of the natural land area of Thua Thien Hue province. (ii) in Phong Dien district, 5.991 certificates were issued with a total area of ​​1.382,1 hectares, reaching 4.30% in all plots and 6.59% of the area compared to the total number of certificates as required. (iii) On the basis of analyzing difficulties and limitations in issuing certificates for households and individuals in the area, the study also proposed solutions to improve the efficiency locally. In particular, it is necessary to focus on solutions to improve the legal system and to organize implementation.    

Pore Structure Formation of Modified Cement Systems Hardening over the Temperature Range from +22°C to -10°C

2014 ◽  
Vol 584-586 ◽  
pp. 1659-1664 ◽  
Author(s):  
Stanislav Pashkevich ◽  
Andrey Pustovgar ◽  
Aleksey Adamtsevich ◽  
Aleksey Eremin
Keyword(s):  
Pore Structure ◽  
Structure Formation ◽  
Thermal Insulation ◽  
Research Results ◽  
Temperature Range ◽  
Composite Systems ◽  
Temperature Regimes

The article presents the research results of modifying antifreeze influence on the pore structure formation of dry mortars in terms of adhesive and base layers of external thermal insulation composite systems within different temperature regimes of hardening.

scholarly journals Evaluasi Kesesuaian Lahan Tanaman Kacang Tanah (Arachis hipogeae L.) di Desa Werwaru Kecamatan Pulau Moa

2019 ◽  
Vol 14 (1) ◽  
pp. 35-40
Author(s):  
Marlin J Oraplawal ◽  
Johanis P Haumahu ◽  
Robby G Risamasu
Keyword(s):  
Growth Period ◽  
Land Suitability ◽  
Limiting Factors ◽  
Survey Method ◽  
Quality Factors ◽  
Land Area ◽  
Suitability Assessment ◽  
Effective Depth ◽  
Land Suitability Assessment

This study was aimed to determine the limiting factors for peanut plants found in the field and establish land suitability class for peanuts in Werwaru Village, Moa Island Sub-District Western South Maluku District. The method used in this research was survey method. Distance observation was free survey, by using identification observation type (boring), and pit profile. Based on the actual land suitability assessment, it was known that in the research location there were several characteristic and quality factors of the land that became the limiting factors on the growth of peanut crops, i.e: rainfall factor during growth period (wa), effective depth (r), C-organic (nr), slope (s). Based on the land area improvement action for peanut crops were in the S2 and S3 classes. The recommended land units for peanut plants were: for class S2: L0a1D, L0a3A, L0a3B, L0a3C, L0a3D, L1a1D, L1a3B, L2a1D, L2a3B with area 1942,13 ha or 36.1 percent and S3: L0a2E, L1a2E, L2a2E covering an area of 219.12 ha or 4.1 percent. Keywords: evaluation of land suitability, peanuts, Werwaru Moa Island   ABSTRAK Penelitian ini bertujuan untuk menentukan factor-faktor pembatas untuk tanaman kacang tanah yang terdapat di lapangan dan menetapkan kelas kesesuaian lahan untuk tanaman kacang tanah di desa Werwaru Kecamatan Pulau Moa Kabupaten Maluku Barat Daya. Metode yang digunakan dalam penelitian ini adalah metode survey. Jarak observasi yang digunakan adalah free survey, dengan menggunakan tipe pengamatan identifikasi (boring), dan profil pit. Berdasarkan hasil penilaiaan kesesuaian lahan aktual diketahui bahwa pada lokasi penelitian terdapat beberapa faktor karakteristik dan kualitas lahan yang menjadi faktor pembatas terhadap pertumbuhan tanaman kacang tanah yakni: faktor curah hujan pada masa pertumbuhan (wa), kedalaman efektif (r), C-organik (nr), Kemiringan lereng (s). Berdasarkan tindakan perbaikan satuan lahan yang direkomendasikan untuk tanaman kacang tanah yaitu pada kelas S2 dan kelas S3. Satuan lahan yang direkomendasikan untuk tanaman kacang tanah yakni: Untuk kelas S2: L0a1D, L0a3A, L0a3B, L0a3C, L0a3D, L1a1D, L1a3B, L2a1D, L2a3B dengan luas 1942,13 ha atau 36,1 persen dan S3: L0a2E, L1a2E, L2a2E dengan luas 219,12 ha atau 4,1 persen. Kata kunci: evaluasi kesesuaian lahan, kacang tanah, Werwaru Pulau Moa

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