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Nuranita Naningsi
Universitas Mahendradatta
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Study Of Land Use Change From 1997 To 2014 Using Landsat Data In Bangli Regency Nuranita Naningsi
Jurnal Ilmiah Vastuwidya Vol 1, No 2 (2018)
Publisher : Universitas Mahendradatta Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (584.924 KB) | DOI: 10.47532/jiv.v1i2.30

Abstract

Kabupaten bangli adalah merupakan kabupaten satu-satunya diwilayah kabupaten di Provinsi Bali yang tidak memiliki pantai dengan luas 52.081 Ha atau 9,24% dari luas wilayah Provinsi Bali (563.666 Ha). Pertumbuhan dan perkembangan wilayah di kabupaten Bangli berdampak positif terhadap perekonomian masyarakat namun juga berdampak negatif terhadap lingkungan. Alih fungsi lahan menjadi salah satu isu negatif dari perkembangan wilayah Kabupaten Bangli. Penelitian ini bermaksud untuk menghitung besarnya perubahan fungsi lahan yang terjadi dalam kurun waktu 17 tahun (1997 – 2014) di kabupaten Bangli.Citra Landsat 5 TM, Landsat 7 ETM+ dan Landsat 8 OLI/TIRS digunakan dalam penelitian ini untuk mengetahui peta penggunaan lahan. Peta penggunaan lahan diperoleh melalui proses klasifikasi citra dengan menggunakan metode supervised kemudian diverifikasi menggunakan data lapangan. Teknik klasifikasi supervised terbagi menjadi 9 klas yaitu danau, lahan kosong, hutan, pemukiman, semak belukar, sawah irigasi, sawah tadah hujan, tegalan, dan perkebunan. Hasil analisis memperlihatkan perubahan penggunaan lahan pada tahun 1997 - 2003 yakni danau bertambah 3,60(0,00%), pemukiman (2.777,00 ha (5,32%)), dan tegalan bertambah (1.866,80 ha (35,84%)) sedangkan lahan kosong (-99,00 ha (-0,19%)), hutan (-223,90 ha (-4,29%)), semak belukar (-629,10 ha (-1,21%)), sawah irigasi (-679,50 ha (-1,30%)), sawah tadah hujan (-515,70 ha (-0,99%)) dan tegalan (-17.287,20 ha (-33,19%)) cenderung berkurang. Ditahun 2003 - 2014 yakni yang mengalami perubahan besar adalah perkebunan (918,90 ha (1,76%)), kemudian pemukiman (569,70 ha (1,09%)), lahan kosong (36,00 ha (0,07%)), semak belukar (91,80 ha (0,18%)), dan sawah tadah hujan (502,20 ha (0,96%)), sedangkan yang berkurang danau (-6,30 ha (-0,01%)), hutan (-0,60 ha (0,00%)), sawah irigasi (-540,00 ha (-1,04%)), dan tegalan (-1.571,70 ha (-3,02%)). Hasil prediksi ini diperoleh dengan tingkat akurasi sebesar 89,45%. Hasil analisis penggunaan menunjukkan luas perkebunan khususnya pada wilayah kabupaten bangli sangat tinggi, akan tetapi meningkatnya pengembangan sarana penunjang pariwisata yang sangat pesat mempengaruhi luas penggunaan lahan, kemudian areal pemukiman mengalami peningkatan luas yang cukup tinggi, khususnya diwilayah kecamatan kintamani.
Perkembangan Tanah Dari Bahan Vulkan Pada Toposekuen Wilayah Bangli Selatan, Kabupaten Bangli Nuranita Naningsi
Jurnal Ilmiah Vastuwidya Vol 2, No 1 (2019)
Publisher : Universitas Mahendradatta Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (570.74 KB) | DOI: 10.47532/jiv.v2i1.71

Abstract

Research on the development of soil from vulkan material in the toposcopic southern  Bangli Region as for the purpose of the study is as follows: (1) the process of formation and development of soil formed from toposcopic volcanic material in the southern, Bangli Region (2) obtain data on soil characteristics in the southern Bangli Region (3) knowing the potential of land for agricultural management in the southern, Bangli Region.This research was carried out with methods of soil survey, laboratory analysis, and supported with secondary data. Three profiles that represent Local Topography is selected based on the height of the different places, profile (N-1) with an altitude of 850 metres above sea level, profile (N-2) with an altitude of 540 metres above sea level, and the profile (N-1) h with an altitude of 200 metres above sea level. A third profile is have the same slope direction that is the direction the southern slope.Parent material formed in the area of research is derived from volcanic material, namely tuff deposits of lava and Vulcan of Buyan and Beratan, Batur, Ancient. Research areas included in the climate type A (very wet). The process of genesis of soils that occur in research is to the top slopes are experiencing a process of erosion, the middle slopes of the transport process and foot slopes of the deposition process.Third that profile has undergone a process of horisonisasi. The level of development of land is at the stage of virile. The characteristics of the soil a bit sour, cation exchange capacity of low to medium, base saturation is low to moderate, organic material is very low to low, the texture of the sand very clay to clay. Types of minerals found in the third profile dominated by halloysite minerals.Based on the results of research affect soil properties that are formed. On the top slopes are formed very deep in the depths of the solum 177 centi metres, middle slopes formed solum in depth 153 centi metres and foot slopes formed a shallow at a depth of solum 137 centi metres. Bangli area Southern potentially in support of plant growth and increase agricultural production.
Penggunaan Mol Hijau Pada Tanaman Kakao Di Desa Dangintukadaya, Kecamatan Jembrana, Kabupaten Jembrana Nuranita Naningsi
Jurnal Ilmiah Vastuwidya Vol 2, No 2 (2019)
Publisher : Universitas Mahendradatta Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (481.121 KB) | DOI: 10.47532/jiv.v2i2.85

Abstract

This study aims to determine the effect of using green Local Microorganisms for cocoa plants ((Theobroma cacao L) Cocoa is a plant that has many benefits. Production of cocoa beans often decreases. One of the contributing factors is due to white bug infestation (Planococcus minor). These insects suck the small fruit so the fruit will dry up and fruit growth is inhibited. Inappropriate use of synthetic insecticides will have a bad impact. Local Microorganisms is fermented solution made from the materials around us. The aim of this study giving farmers an understanding of the purpose, benefits and mechanism for using green Local Microorganisms to reduce the impact of using chemical pesticides. Green Local Microorganisms is very effective in killing white lice on cocoa plants.
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