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All Journal Agrotrop : Journal on Agriculture Science International Journal of Biosciences and Biotechnology E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Agrica: Journal of Sustainable Dryland Agriculture
WIYANTI WIYANTI
Program Studi Agroekoteknologi Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science

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Journal : E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)

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Fitoremediasi Air Irigasi Menggunkan Tanaman Eceng Gondok (Eichornia Crassipes) dan Teratai (Nymphae sp.) di Subak Sembung Kelurahan Peguyangan Denpasar Utara AGUS FRENCA ADI PUTRA; I WAYAN DIARA; WIYANTI WIYANTI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.2, April 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Phytoremediation of Irrigation Water Using Water Hyacinth Plant (Eichornia Crassipes) and Lotus Plant (Nympae sp.) in Subak Sembung Peguyangan Village, North Denpasar Subak Sembung Peguyangan village, north Denpasar has an area of 115 ha. Agrochemical use and land use change threatens the quality of irrigation water This research aimed to determine the quality of irrigation water in which the research had conducted from August to December 2015. The physical, chemical and biological qualities of the irrigation water analyzed through sampling the water gradually then the result was being compared to water quality standard in accordance with regulation Peraturan Gubernur Bali No. 8 Tahun 2007. The result showed that the irrigation water is contaminated with heavy metal Cadmium (Cd). The physical qualities of irrigation water was indicated by total value of TSS (0.60 mg/l) and TDS (270 mg/l), the chemical qualities was indicated by the value of pH (7,21), BOD (3,875 mg/l), COD (9,996 mg/l), and Pb (0,0345 mg/l) and the biological qualities of irrigation was indicated by Total Coliforms (150/100 ml). These three qualities is still below the quality standard. Treatment of water hyacinth and lotus show a downward trend in the value of Cadmium (Cd) and chromium (Cr) and the trend is increasing the value of BOD and COD. The result of using water hyacinth plant (Eichornia Crassipes) produces revealed better irrigation water quality than lotus plant (Nympae sp.).
Analisis Spasial Koefisian Limpasan Permukaan untuk Estimasi Luapan Banjir di DAS Tukad Buleleng Provinsi Bali ANGGIA WIDYA FATAHILLAH; R. SUYARTO; WIYANTI WIYANTI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.1, Januari 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Spatial Analysis of Surface Runoff Coefficient for Estimating Flood Overflow in Tukad Buleleng Watershed Bali Province Land-use change of high-density vegetation, into agricultural land and built-up land in the upstream area can affect the hydrological function of the watershed. Such conditions are increasingly fatal, with high rainfall, causing a high coefficient of surface runoff. High surface runoff can cause overflow floods in watersheds, one of which is in the Tukad Buleleng watershed, Bali Province. The implication of high surface runoff is flooding in the downstream area of the watershed, thus having a detrimental impact on communities in the downstream area of the watershed. This study aims to analyze the spatial distribution of the surface runoff coefficient. Analysis of the coefficient of surface runoff using the Cook method, by utilizing spatial data of slope, land use, and soil texture. Data analysis technique using Geographic Information System (GIS) on ArcGIS 10.4 software. The results showed that the Tukad Buleleng watershed has a low to extreme runoff coefficient. The high value of the coefficient of surface runoff is due to high rainfall, steep slopes, texture dominated by clay fractions, and land use with low vegetation density. The high surface runoff coefficient value has an impact on the flood overflow in the Tukad Buleleng watershed, Bali Province.
Aplikasi Sistem Informasi Geografi untuk Kajian Fluktuasi Muka Air Tanah dan Karakteristik Akuifer di Kawasan Kecamatan Denpasar Timur Kota Denpasar PUTU SINTAYANI BUANA; WIYANTI WIYANTI; R. SUYARTO
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.3, Juli 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Application of Geographic Information System for Study of Water Table Fluctuations and Characteristics of Aquifers in the East Denpasar Subdistrict Region Denpasar City The growth of development and population in East Denpasar causing domestic water are increasing. In the other hand the water supply from Water Supply Company (PDAM) has not been able to serve all the needs of the community, so they use another alternative form of groundwater extraction. The increased water demand from groundwater causing groundwater degradation which is reflected by the decreasing quality and water table fluctuation level. This research aims to determine the fluctuations and depth distribution of water table, flow direction and characteristics of aquifers. The method used is survey method and analyzed with descriptive quantitative. Spatially the data is presented with Geographic Information Systems (GIS) using ArcGIS software. The results showed that the depth of the water table in the dry season ranged from 0,74-24 m and the rainy season ranged from 0,15-15,82 m with a range of water table fluctuations is 0,59-8,18 m. The flow direction of groundwater moves from north to south and partly inclines to southeast or southwest with an angle greater than N 185° E. The types of aquifers found were unconfined aquifers up to a depth of 160 m and the rock constituent material form of sand/sandstone, compact sand, loose sand, clay sand, volcanic ash/tuff and gravel.
Identifikasi Karakteristik Daerah Aliran Sungai dan Kemampuan Lahan untuk Menyusun Arahan Penggunaan Lahan pada Sub Das Gunggung I MADE ADI SURYADI; WIYANTI WIYANTI; I NYOMAN DIBIA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.2, April 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Identification of Watershed Characteristics and Land Capability for Land Use Direction in Gunggung Sub-WatershedGunggung Sub Watershed is upstream of Jinah Watershed and included in the Oos Jinah Unit Management Area Watershed, which has function and important role in supporting community water needs in Bangli and Karangasem Regency.This study aims to determine the characteristics, land capability classes, land use direction and proper management actions to keep the function of the land remains sustainable and continuous. A method used is survey and observation. Watershed characteristic is determined by digitally and landuse is determined by scoring.The result of this study showed that in Gunggung Sub Watershed there were VI and VII land capability classes and based on the results of land use scoring, land is directed into protected area and buffer area with limiting factor is texture and water retention capacity. Land management like improvements the terrace, addition of organic matter, increase plant density, planting ground cover and planting layered header system will increase the land capability classes. Land use recommended after management is mixed plantation high density with forest plants (unit 1, 2, 6, 13, and 14), mix plantation high density with patio bench contruction (unit 3, 8, 10, 11, 12, 15, 16 and 17), the cultivation of seasonal and perennial crops (unit 4 and 5), the cultivation of perennial crops (unit 7) and cultivation of seasonal crops (unit ).
Aplikasi Sistem Informasi Geografis untuk Analisis Potensi Daerah Resapan Air di Kecamatan Buleleng RIO PUTRA NUSANTARA PARDEDE; I NYOMAN DIBIA; WIYANTI WIYANTI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.1, Januari 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Application of Geographic Information Systems for Analysis of the Potential of Watersheds in Buleleng District The research was conducted in Buleleng Subdistrict and lasted from December 2019 to April 2020. The purpose of this study was to determine the potential for water catchment in the study area and determine the distribution of potential water catchment in the study area. The method used is a scoring method with parameters used are soil type, land use, slope and rainfall. The results showed that the potential grade of water catchment areas consisted of rather good, moderate, bad, rather bad, and very bad classes. The potential for water infiltration in the study area is dominated by a rather bad class of 2.305,66 ha (49.11%), then followed by a very bad class of 1.130,75 ha (24.08%), a bad class of 1.088,51 ha (23 , 18%), the class is rather good at 112,35 ha (2.39%) and middle class at 56,73 ha (1.20%).
Aplikasi Sistem Informasi Geografis untuk Pemetaan Potensi Banjir pada DAS Banyualit di Kabupaten Banyuwangi, Jawa Timur DICKY ARDIYAN NUGROHO PUTRA; WIYANTI WIYANTI; R. SUYARTO
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.1, Januari 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Geographical Information System Application for Flood Potention Mapping in Banyualit Watershed, Banyuwangi Regency, East Java The Banyualit Watershed has an area of 25 km2, through 5 sub-districts consisting of 15 villages from upstream to downstream. Banyualit watershed has varied physical conditions, causing the potential for scattered floods to have different levels. The use of space that is not accordance with the carrying capacity of the environment as a result of land conversion and changes in the morphology of the watershed are getting narrower causing the flow of water to overflow into residential areas, plantations and rice fields in the event of heavy rains with a high enough intensity. The purpose of this study was to determine the distribution of flood potential levels along with the spatial distribution of flood potential in Banyualit watershed. The method used in this study is a scoring with six parameters, land use, slope, altitude, soil type, rainfall and river density. Each parameter has weight and score based on the size of the effect on flooding. The level of distribution of flood potential in Banyualit watershed is divided into four classes of flood potential, very low potential with an area of 21.57 ha (1%), low potential with an area of 466.33 ha (19%), medium potential with an area of 1.812.41 ha (71%) and high potential with an area of 224.44 ha (9%).
Analisis Neraca Air Untuk Kebutuhan Air Irigasi di Daerah Aliran Sungai (DAS) Tukad Buleleng, Kabupaten Buleleng FIRDA ARFIANA; R. SUYARTO; WIYANTI WIYANTI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Analysis of Water Balance for Irrigation Water Needs in Tukad Buleleng Watershed, Buleleng Regency Population and human activity have increased so that land use changes resulting in the catchment area does not function optimally. Poor watershed function conditions result in water in the dry season becoming scarce. Drought occurs due to upstream imbalance of watersheds that undergo land function, so the water needs for rice fields are not met. The purpose of this study is to analyze the needs of irrigation water. The method used is descriptive quantitative by calculating from the stage of crop water requirement/CWR, farm water requirement/FWR and project water requirement/PWR. The results showed that the highest value of water needs/PWR projects occurred in the planting period I November III during the generative phase of 196,90 liters/second and the lowest occurred in the planting period II in May I during the fertilization and ripening phase 156,40 liters/second.
Pemetaan Potensi dan Kerawanan Longsor Lahan di Desa Belandingan, Desa Songan A dan Desa Songan B Kecamatan Kintamani, Kabupaten Bangli NI MADE DWI PRADNYASARI; WIYANTI WIYANTI; TATIEK KUSMAWATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.2, April 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Mapping of Landslide Potential and Susceptibility at Belandingan Village, Songan A Village and Songan B Village, Kintamani District ,Bangli Regency The research conducted in order to find out how the potential for landslides in the Belandingan Village, Songan A Village and Songan B Village. Scoring and overlay method used to determine the results of landslide potentials in the study area. Parameter used as the basis for overlay and scoring are soil types, rainfall data, structural geology, landform, slope and land use map. From the overlay result, 41 land unit were mapped on the research area. Based on scoring, there are 4 classes of landslide potential. They are potential including no Potential, low Potential, moderate Potential, high Potential. Most area of study area are are included as low Potential and medium Potential. Meanwhile high Potential mainly concentrated on the ancient caldera on west part of Batur Lake. Belandingan, Songan A and Songan B villages have various levels of landslide potential, starting from this non-Potentialous category, covering land units 34 and 39. Low potential on land units 26, 29, 25, 23, 21, 38, 3, 12 and 11. While on land units 36, 30, 31, 32, 14, 15, 16, 17, 19, 4, 20, 40, 24, 6, 13, 2, 37, 7, 8, 9, 27.10, 22, 41, 1. 5 and high potential on land units 33, 18, 35, and 28. The no Potential class mainly located in Songan A and Songan B Village with total area 244,17 Ha. The Low Potential class are located mainly in Songan A Village and Songan B Village with small amount in Belandingan with total area 1059,21 Ha. Moderate Potential class located in all with total area 1904,42 Ha . The High landslide Potential class located mainly in Songan B Village with small amount in Belandingan Village and Songan A Village with total area ??343,36 Ha.
Aplikasi Sistem Informasi Geografis (SIG) Untuk Kajian Fluktuasi Muka Air Tanah dan Karakteristik Akuifer di Kecamatan Denpasar Barat NI LUH AYU DANA LESTARI; NI MADE TRIGUNASIH; WIYANTI WIYANTI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.3, Juli 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Application of Geographic Information System (GIS) for Study of Groundwater Fluctuations and Characteristics of Aquifers at West Denpasar District Communities that have not been served by PDAM as much as 47.62%, use ground water to fulfill their clean water needs. The purpose of this study was to determine the distribution of dug wells, distribution of groundwater surface, fluctuations, flow direction and characteristics of aquifers in West Denpasar Subdistrict. This research was carried out by descriptive quantitative method. Analysis was carried out from survey data by using ArcGIS software. The results showed that the highest number of dug wells was found in Pemecutan Klod Village (31,25%). Groundwater surface depth in the dry season was 84.38% classified into 0-5 m class and in the rainy season 90.63% also classified as 0-5 m class too. Almost all of the southern West Denpasar Subdistrict has 0-5 m fluctuations. Groundwater in the West Denpasar Subdistrict is predicted to flow to the South, Southeast and Southwest. There are two types of aquifers in West Denpasar Subdistrict that is shallow aquifers and deep aquifers. Shallow aquifers are at 2-20 m depth with a maximum thickness of 18 m and are composed of passive and breccia material. Deep aquifers are found at 12-24 m depths with a minimum thickness of 12 m and are composed of passive and tufa material. It is estimated that both types of aquifers are good aquifers.
Karakteristik Hidrologi Tanah pada Berbagai Tingkatan Umur Tanaman Penghijauan di Desa Pelaga, Kecamatan Petang Kabupaten Badung NI KOMANG HARI PADMAYANI; I NYOMAN SUNARTA; WIYANTI WIYANTI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.2, April 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Characteristics of Soil Hydrology At Various Age Levels of Reforestation In Pelaga Vilage Petang Ditrict, Badung Regency Nowadays many areas are experiencing drought during the dry season and flooding during the rainy season, so the water is no longer available throughout the year due to an imbalance of the hydrological cycle. The imbalance is caused by two factors: natural factors and management factors. Reforestation plants are expected to have the function of forests as an effective natural run off control. The purposes of this research were to know the difference of hydrological characteristics at several age levels reforestation and to determine the role of plant ages in improving soil hydrological properties at Pelaga vilage. The data was analysed with descriptive quantitative method..The results from this research of characterized the hydrological at various age levels of reforestation was increased fluctuatingly. Available water on reforestation 1,2,3,4,5 years old and controls respectively 14.75%, 12.07%, 14.90%, 13.98%, 15.88%, and 12.22%. The highest characteristics of soil hydrology was achieve in the reforestation area of the five years old or after harvest was 15.88%. The increasing levels of water available between the ages of five years over control was 29.95%.
Co-Authors AGUS FRENCA ADI PUTRA ANGGIA WIDYA FATAHILLAH DEBORA TIENCICIA NAPITU DICKY ARDIYAN NUGROHO PUTRA FIRDA ARFIANA I MADE ADI SURYADI I Nyoman Dibia I NYOMAN MERIT I NYOMAN SUNARTA I Wayan Diara I WAYAN NARKA INDAYATI LANYA Jeksen, Julianus Ketut Dharma Susila Made Antara Moh Saifulloh NI KOMANG HARI PADMAYANI NI LUH AYU DANA LESTARI NI MADE DWI PRADNYASARI NI MADE TRIGUNASIH Ni Nengah Soniari PUTU SINTAYANI BUANA R. Suyarto RIO PUTRA NUSANTARA PARDEDE TATIEK KUSMAWATI WINDA ARDY DWIASTUTI Yoga Yuniadi