scholarly journals Analisis Tingkat Bahaya Erosi di Sub DAS Simaimai Kabupaten Deli Serdang.

2019 ◽  
Vol 11 (2) ◽  
pp. 193
Author(s):  
Fanjosafat Sitohang ◽  
Kamarlin Pinem
Keyword(s):  
Random Sampling ◽  
Soil Loss ◽  
Sampling Technique ◽  
Classification Criteria ◽  
Class Iii ◽  
Hazard Class ◽  
Erosion Hazard ◽  
Analysis Technique ◽  
Hazard Level ◽  
Soil Loss Equation

This study aims to determine, the erosion hazard that occurs and the level of erosion hazard that occurs in the Simaimai Sub-watershed in Deli Serdang Regency. This research was carried out in 2018 in the Simaimai sub-watershed. The population in this study was all land units in the Simaimai Sub-watershed with a sample of 8 land units taken using the Stratified Random Sampling technique. The data analysis technique used is descriptive qualitative, namely to describe the erosion hazard using the USLE (Universal Soil Loss Equation) method and the erosion hazard level by combining erosion hazard values with erosion hazard level classification criteria. The results showed that: (1) the erosion hazard in the Simaimai sub-watershed was divided into four classes. The most dominant erosion hazard class in Simaimai Sub-watershed is class III, which is in 4 land units. While the most extensive erosion hazard class is the class I erosion hazard found in two land units. The heaviest erosion hazard class (IV) is found in AnLKIV land units. While the smallest erosion hazard class is class II erosion hazard. (2) the level of erosion hazard in the Simaimai watershed includes erosion levels of very light (SR), mild (R), moderate (S), heavy (B) and very heavy (SB).

scholarly journals Estimasi Tingkat Bahaya Erosi dengan Menggunakan Metode USLE Pada Daerah Aliran Sungai (DAS) Amandit

2021 ◽  
Vol 1 (1) ◽  
pp. 17-27
Author(s):  
Julita Safitri ◽  
Deasy Arisanty ◽  
Sidharta Adyatma ◽  
Karunia Puji Hastuti
Keyword(s):  
Data Analysis ◽  
Soil Erosion ◽  
Land Cover ◽  
Land Degradation ◽  
Soil Loss ◽  
Universal Soil Loss Equation ◽  
Erosion Hazard ◽  
Hazard Level ◽  
Weight Classification ◽  
Soil Loss Equation

Abstrak: Erosi tanah menjadi semakin meningkat setiap tahun yang disebabkan oleh terjadinya peningkatan kerusakan lahan. Daerah Aliran Sungai (DAS) Amandit mengalami kerusakan lahan yang ditandai dengan luasnya lahan kritis pada DAS tersebut yang akan berpengaruh pada tingginya tingkat bahaya erosi pada DAS tersebut. Penelitian ini bertujuan untuk menganalisis tingkat bahaya erosi yang terjadi pada Daerah Aliran Sungai (DAS) Amandit. Penelitian ini menggunakan peta bentuklahan sebagai dasar pengambilan sampel. Jumlah sampel dalam penelitian ini adalah 18 buah sampel. Analisa data yang digunakan adalah berdasarkan Metode Universal Soil Loss Equation (USLE) yang digunakan untuk mengetahui tingkat bahaya erosi yang terjadi pada wilayah penelitian. Hasil penelitian menunjukkan tingkat bahaya erosi yang terjadi di Daerah Aliran Sungai (DAS) Amandit termasuk dalam klasifikasi berat-sangat berat. Tingkat bahaya erosi yang paling tinggi adalah 1276.535 ton/ha/tahun. Faktor yang dominan yang mengakibatkan tingkat bahaya erosi pada Daerah Aliran Sungai (DAS) Amandit termasuk dalam klasifikasi berat-sangat berat adalah kemiringan lereng, nilai erodibilitas yang tinggi, dan tutupan lahan. Kata Kunci: Tingkat Bahaya Erosi (TBE), Bentuklahan, USLE, DAS Amandit Abstract: Soil erosion is increasing every year due to increased land degradation. The Amandit Watershed has suffered damage which affects critical land in the watershed which will affect the level of erosion hazard in the watershed. This study aims to analyze the level of erosion that occurs in the Amandit Watershed. This study uses a landform map as a basis for sampling. The number of samples in this study were 18 samples. The data analysis used is based on the Universal Soil Loss Equation (USLE) method which is used to see the level of erosion hazard that occurs in the study area. The results showed that the level of erosion that occurred in the Amandit Watershed was classified as heavy-very heavy. The highest level of erosion was 1276.535 ton/ha/year. The dominant factors resulting in the level of erosion in the watershed (DAS) included in the weight-very weight classification are the slope of the slope, high erodibility values and land cover. Keywords: Erosion Hazard Level, Landform, USLE, Amandit Watershed

scholarly journals Analysis of Erosion Hazard at Gagakan Sub-Watershed, Blora District, Central Java Province, Indonesia

2017 ◽  
Vol 1 ◽  
pp. 85-89
Author(s):  
Diah Auliyani ◽  
Tyas Mutiara Basuki
Keyword(s):  
Information System ◽  
Soil Erosion ◽  
Carrying Capacity ◽  
Soil Loss ◽  
Erosion Hazard ◽  
Central Java ◽  
Hazard Level ◽  
Watershed Slope ◽  
Central Java Province ◽  
Soil Loss Equation

Availability of soil erosion data is crucial for recovering carrying capacity of a degraded watershed. This study aims to analyze the level of soil erosion hazard in Gagakan Sub-Watershed, located at the downstream of Solo Watershed. Slope steepness of this area vary from very steep at the upper part and flat at the downstream. The dominant land cover is teak forest which consists of young and old stands. The level of soil erosion hazard was calculated by USLE (Universal Soil Loss Equation) and then analyzed spatially using GIS (Geographic Information System). The degree of erosion hazard was classified into five classes, i.e very slight, slight, moderate, severe, and very severe. The results showed that erosion hazard level of Gagakan sub-watershed ranged from very slight to very severe. The dominant is very slight (69%), while the others classified as slight (11%), moderate (15%), severe (1%), and very severe (4%). The countermeasures of soil erosion should be focused on the area with severe and very severe level of erosion hazard.

scholarly journals Prediksi Tingkat Bahaya Erosi di Kecamatan Lembah Seulawah Kabupaten Aceh Besar

2018 ◽  
Vol 3 (2) ◽  
pp. 381-390
Author(s):  
M. Haris Syahputra ◽  
M. Rusli Alibasyah ◽  
Syakur Syakur
Keyword(s):  
Soil Loss ◽  
Soil Analysis ◽  
Universal Soil Loss Equation ◽  
Survey Method ◽  
Erosion Hazard ◽  
Preparation Phase ◽  
Hazard Level ◽  
Study Sites ◽  
Th 1 ◽  
Soil Loss Equation

Abstrak. Penelitian ini bertujuan untuk mengetahui tingkat bahaya erosi di Kecamatan Lembah Seulawah Kabupaten Aceh Besar. Metode penelitian menggunakan metode survei yang didasarkan pada hasil pengamatan di lapangan  dan analisis tanah di Laboratorium. Erosi dihitung dengan menggunakan persamaan Universal Soil Loss Equation (USLE) yang dikemukakan oleh Wischmeier dan Smith pada tahun 1978. Metode USLE mengamati beberapa aspek seperti erosivitas, erodibilitas, faktor panjang dan kemiringan lereng, dan faktor pengelolaan tanaman dan tindakan konservasi. Secara garis besar penelitian ini dilaksanakan beberapa tahap yaitu, tahap persiapan, pengumpulan data, pelaksanaan lapangan dan pengambilan sampel tanah, dan analisis data. Hasil penelitian menunjukkan bahwa di lokasi penelitian terdapat tujuh belas satuan peta lahan (SPL) dengan total luas areal 31.935,56 Hektar. Erosi aktual tertinggi dijumpai pada SPL 7 yaitu sebesar 2.699,92 ton ha-1 th-1 dan erosi aktual terendah dijumpai pada SPL 14 yaitu 0,82 ton ha-1 th-1. Erosi potensial tertinggi dijumpai pada SPL 1 yaitu sebesar 5.774,84 ton ha-1 th-1 dan erosi potensial terendah dijumpai pada SPL 16 yaitu 48,53 ton ha-1 th-1. Terdapat 5 klasifikasi tingkat bahaya erosi yaitu tingkat bahaya erosi sangat ringan (SR) pada SPL 16, tingkat bahaya erosi ringan (R) pada SPL 17, tingkat bahaya erosi sedang (S) pada SPL 10, 14, dan 15, tingkat bahaya erosi berat (B) pada SPL 4, 7, 11, 12, dan 13, dan tingkat bahaya erosi sangat berat (SB) pada SPL 1, 2, 3, 5, 6, 8, dan 9.Prediction of Erosion Hazard at Lembah Seulawah Sub-distrik Aceh BesarAbstract. This study aims to determine the level of erosion hazard in Lembah Seulawah, Aceh Besar District. The research method is used survey method based on field observation and soil analysis in the laboratory. Erosion is calculated by using the Universal Soil Loss Equation (USLE) which proposed by Wischmeier and Smith in 1978. The USLE method looked at several aspects such as erosivity, erodibility, long factor and slope, and crops management and conservation measures. In general, this research is carried out several stages, namely, preparation phase, data collection, field implementation and soil sampling, and data analysis. The results showed that in the study sites there were seventeen units of land maps (SPL) with a total area of 31,935.56 hectares. The highest actual erosion was found in SPL 7 of 2,699.92 tons ha-1 th-1 and the lowest actual erosion was found in SPL 14 of 0.82 tons ha-1 th-1. The highest potential erosion was found in SPL 1 of 5,774.84 ton ha-1 th-1 and the lowest potential erosion was found in SPL 16 of 48.53 ton ha-1 th-1. There are 5 classifications of erosion hazard level which is very light erosion (SR) on SPL 16, light erosion hazard (R) on SPL 17, moderate erosion level (S) on SPL 10, 14, and 15, (B) on SPL 4, 7, 11, 12, and 13, and very severe erosion (SB) on SPL 1, 2, 3, 5, 6, 8, and 9. 

scholarly journals Pendugaan tingkat bahaya erosi pada hutan dan lahan Kopi Arabika (Coffea arabica) di Kecamatan Sibolangit

2018 ◽  
Vol 5 (1) ◽  
pp. 30-35
Author(s):  
Devisna Situngkir ◽  
Jamilah ◽  
Posma Marbun
Keyword(s):  
Soil Loss ◽  
Prediction Equation ◽  
Universal Soil Loss Equation ◽  
Survey Method ◽  
Land Use Patterns ◽  
Factors Affecting ◽  
Erosion Hazard ◽  
Coffee Arabica ◽  
Hazard Level ◽  
Soil Loss Equation

Vegetation is one of the factors affecting the actual erosion of a land. The changes in forest land use patterns into coffee lands can increase the erosion hazard. The aim of this research was to get information about erosion hazard level in forest and coffee arabica lands in Sibolangit Sub District by using USLE (Universal Soil Loss Equation) method. The Research was conducted in January-July 2017 in Sibolangit District at three villages ie Negeri Suah, Bukum and Cinta Rakyat. In this research, were 6 samples in Arabica coffee field sample (1, 2 and 3) and in Forest sample (1, 2 and 3). The research was conducted by using survey method and continued with soil erosion calculation by USLE (Universal Soil Loss Equation) prediction equation. The results showed that the value of erosion in the coffee arabica land in Cinta Rakyat Village on the slope of 60% was 432,87 ton.ha-1.year-1 (very high). The highest erosion hazard level in Bukum Village on the slope of 25% was 88,144 ton.ha-1.year-1 and the highest erosion hazard level in the Negeri Suah Village on the slope of 46% was 193,083 ton.ha-1.year-1. The value of erosion in the area forest in the Cinta Rakyat Forest on the slope 58% was 1,087 ton.ha-1.year-1with lowest erosion hazard. The lowest erosion hazard level in the Bukum Forest on the slope of 21% was 0,190 ton.ha-1.year-1and the lowest erosion hazard level in the Negeri Suah Forest on the slope of 36 % was 0,309 ton.ha-1.year-1.

scholarly journals Analisis Faktor Yang Mempengaruhi Tumbuhnya Minat Belajar Siswa Di SD Islam Athirah Makassar Kelas 4

2019 ◽  
Vol 9 (3) ◽  
pp. 212
Author(s):  
Andi Fatmayanti ◽  
Tri Susantri
Keyword(s):  
Elementary School ◽  
Random Sampling ◽  
Geographical Location ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Influential Factor ◽  
Survey Method ◽  
Learning Method ◽  
Learning Models ◽  
Analysis Technique

Abstract. This research aims to determine the factors that influence the growing interest in learning of students in Athira Makassar Islamic Elementary school in class 4.1. This study uses a quantitative approach with descriptive survey method. The population of the research was 74 fourth grade students of Athira Makassar Islamic Elementary school, consist of 4 classes, the sampling using simple random sampling technique, so that class 4.1 was chosen as a sample of 20 students. Data were analyzed using statistical data analysis technique which consisted of editing, data tabulated stages, then presented and then presented in table form and described descriptively. The result showed a percentage of learning method 14,41%, the geographical location of the school 12,56%, phisycal indikator 11,78%, learning models 11,74%, talent 9,18%, learning models 8,54%, indikator of needs 6,28%, social competence 5,97%, building indikator 5,77%, personality competence 5,43%, and pedagogic competence 5,30%. It was concluded that the learning method was the most influential factor in the growth of student`s interest in learning at Athira Makassar Islamic Elementary school grade 4.Abstrak. Penelitian ini bertujuan untuk mengetahui faktor yang mempengaruhi tumbuhnya minat belajar siswa di SD Islam Athirah Makassar kelas 4.1. Penelitian ini menggunakan pendekatan kuantitatif dengan metode survei deskriptif.Populasi penelitian adalah keseluruhan siswa kelas 4 SD  Islam Athirah Baruga Makassar berjumlah 74 orang siswa yang terdiri dari empat kelas, penarikan sampel menggunakan teknik Simple Random Sampling, sehingga terpilih kelas 4.1 sebagai sampel yang berjumlah 20 orang siswa. Data dianalisis menggunakan teknik analisis data statistik yang terdiri dari tahap penyuntingan, input data, dan tahap tabulasi,selanjutnya dipersentasekan kemudian disajikan dalam bentuk tabel dan dijabarkan secara deskriptif. Hasil penelitian menunjukkan persentase metode pembelajaran 14,41%, letak geografis sekolah (12,56%), indikator fisik (11,78%), model pembelajaran (11,74%), bakat (9,18%), model pembelajaran (8,54%), indikator kebutuhan (6,28%), kompetensi sosial (5,97%), indikator bangunan (5,77%), kompetensi kepribadian (5,43%), dan kompetensi pedagogik (5,30%).Disimpulkan bahwa, metode pembelajaran adalah faktor yang paling berpengaruh terhadap tumbuhnya minat belajar siswa di SD Islam Athirah Makassar kelas 4.

scholarly journals KEPUASAN KERJA DAN DISIPLIN KERJA PENGARUHNYA TERHADAP MOTIVASI KERJA KARYAWAN PDAM TIRTA BHAGASASI BEKASI

2020 ◽  
Vol 28 (1) ◽  
pp. 106-118
Author(s):  
Evi Mafriningsianti
Keyword(s):  
Job Satisfaction ◽  
Random Sampling ◽  
Work Motivation ◽  
Positive Impact ◽  
Descriptive Analysis ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Average Score ◽  
Sampling Techniques ◽  
Analysis Technique

This research objective to determine the satisfaction, discipline, and motivation of employees of PDAM Tirta Bhagasasi Bekasi, and also to determine satisfaction and discipline of influence on work motivation the employee of PDAM Tirta Bhagasasi Bekasi. There are 90 employees of PDAM Tirta Bhagasasi Bekasi as a sample in this study. The sampling technique uses simple random sampling techniques. Observation and questionnaire methods are used in collecting the data. The data analysis technique uses multiple regression analysis with the SPSS program. The results of the descriptive analysis show the good realization of job satisfaction (average score 3.63) and employee work discipline (average score 3.61) so that it has a positive impact on employee work motivation (average score 3.57). These results are supported by Bekasi Tirta Bhagasasi PDAM data in 2018 which obtained a level of realization of workforce satisfaction of 61.38% (sufficient category), the value of realization of employee work discipline at 5.80% (sufficient category), and the level of realization of labor motivation of 60.71% (sufficient category). t value calculated job satisfaction (b1) = 9,133 with a significance of 0,000 (<= 0.05) then Ho is rejected and Ha is accepted. This means that job satisfaction has a significant effect on the work motivation of PDAM Tirta Bhagasasi Bekasi employees. T value is calculated work discipline (b2) = 5.535 with a significance of 0,000 (<= 0.05) then Ho is rejected and Ha is accepted. This means that work discipline has a significant effect on the work motivation of PDAM Tirta Bhagasasi Bekasi employees.

scholarly journals PENGARUH ADVERSITY QUOTIENT DAN IKLIM KELAS TERHADAP PRESTASI BELAJAR EKONOMI SISWA KELAS X SMAN 3 PARIAMAN

Jurnal Ecogen ◽  
2019 ◽  
Vol 1 (4) ◽  
pp. 812
Author(s):  
Wildanul Husna
Keyword(s):  
Random Sampling ◽  
Classroom Climate ◽  
Sampling Technique ◽  
Significant Positive Effect ◽  
Data Collection Tool ◽  
Economic Achievement ◽  
Analysis Technique ◽  
Tenth Grade ◽  
Academic Year ◽  
Positive Effect

Abstract: This research aims to determine the influence of adversity quotient and classroom climate on students' economic achievement. The type of this research are descriptive and associative. The population of this research are the tenth grade students of SMAN 3 Pariaman who study economic subjects and enrolled in academic year 2017-2018 which amounted to 192 students, the sample of this reasearch are 129 students. The sampling technique is done by Proportional Random Sampling. Questionnaire is used as a data collection tool. Data analysis technique used is multiple linear regression. The results showed that there was a significant positive effect between adversity quotient and classroom climate on students' economic achievement. Based on the results of the research, it was suggested for students to further increase adversity quotient and form a good classroom climate in learning in order to get a more optimal achievement. For the teachers, they are expected to pay more attention to the condition of students in learning, and for parents, they are expected to pay attention to the development of their children, so they can provide encouragement to students to remain eager in learning in order to get better learning achievement.Keyword: adversity quotient, classroom climate, learning achievement

scholarly journals Peningkatan Kompetensi Keterampilan Peserta Didik Berbantuan LKPD Berbasis Model Discovery Learning pada Materi Fluida

2019 ◽  
Vol 2 (1) ◽  
pp. 130-139
Author(s):  
Nadya Pratiwi ◽  
Yulkifli Yulkifli
Keyword(s):  
Random Sampling ◽  
Sampling Technique ◽  
Learning Model ◽  
Discovery Learning ◽  
Average Value ◽  
Analysis Technique ◽  
Distribution Of Values ◽  
Skill Scores ◽  
Homogeneous Data ◽  
Cluster Random Sampling

Abstract: Lack of practical activities in schools can result in a decrease in the creativity of students. worksheets based on the discovery learning model in them trigger students to think creatively and critically. The sampling technique is cluster random sampling. The purpose of this study is to look at the improvement of skills competencies which are assisted by student worksheets based on the discovery learning model. The data analysis technique is testing hypotheses where there is a difference which means the use of this student worksheet. Hypothesis testing conditions are to carry out normality tests for skill scores from both sample classes and homogeneity tests to see the distribution of values from two sample classes that have homogeneous data. after treatment is obtained, the average value of the skills of the experimental class is 78.62 and for the control class is 70.10.Abstrak: Kurangnya kegiatan praktikum di sekolah dapat mengakibatkan penurunan kreativitas siswa. lembar kerja berbasis model discovery learning di dalamnya memicu siswa untuk berpikir kreatif dan kritis. Teknik pengambilan sampel adalah cluster random sampling. Tujuan dari penelitian ini adalah untuk melihat peningkatan kompetensi keterampilan yang dibantu oleh lembar kerja siswa berdasarkan pada model pembelajaran penemuan. Teknik analisis data menguji hipotesis di mana ada perbedaan yang berarti penggunaan lembar kerja siswa ini. syarat pengujian hipotesis adalah untuk melakukan tes normalitas untuk skor keterampilan dari kedua kelas sampel dan tes homogenitas untuk melihat distribusi nilai dari dua kelas sampel yang memiliki data homogen. setelah perawatan diperoleh, nilai rata-rata keterampilan dari kelas eksperimen adalah 78,62 dan untuk kelas kontrol adalah 70,10.

Pengaruh Pendidikan Karakter terhadap Motivasi Belajar Siswa

2021 ◽  
Vol 2 (2) ◽  
pp. 138-150
Author(s):  
Fathimah Fithriyaani ◽  
Deddy Yusuf Yudhyarta ◽  
Syarifudin Syarifudin
Keyword(s):  
Data Analysis ◽  
Data Collection ◽  
Character Education ◽  
Student Learning ◽  
Random Sampling ◽  
Sampling Technique ◽  
Learning Motivation ◽  
Analysis Technique ◽  
Regression Test ◽  
Simple Regression

The purpose of this study was to determine the effect of character education on students' learning motivation at State Elementary School 019 Sungai Beringin, Tembilahan Indragiri Hilir Riau Indonesia. This research used a quantitative approach. A total of 74 students were selected to participate in this study using the proportional random sampling technique. Data collection techniques were questionnaires and documentation. The data analysis technique used was a simple regression test. Based on the results of data analysis on variable X, namely Character Education, it was found that 73.69% was categorized as strong. Then, based on the results of data analysis of variable Y, namely Student Learning Motivation, it was found that 77.39% was also categorized as strong. While the effect of character education on student learning motivation obtained Fcount ≥ Ftable = 20.92 ≥ 3.97, so Ho is rejected, which means that there was a positive and significant influence between character education on student learning motivation

PENGARUH FAKTOR SOSIAL EKONOMI DAN MOTIVASI KERJA TERHADAP PRESTASI KERJA KARYAWAN KOPERASI CU CINTA KASIH TIGAPANAH KABUPATEN KARO

2019 ◽  
pp. 103-121
Author(s):  
Mispa Adelistra Br Ginting ◽  
Anitha Paulina Tinambunan
Keyword(s):  
Data Analysis ◽  
Linear Regression ◽  
Socioeconomic Factors ◽  
Random Sampling ◽  
Work Performance ◽  
Work Motivation ◽  
Sampling Technique ◽  
Economic Variable ◽  
Test Results ◽  
Analysis Technique

This study aims to test and analyze the influence of socioeconomic factors and work motivation on the work performance of the CU Cinta Kasih Tigapanah Cooperative Karo District employees. The sampling technique used is Proportional Random Sampling. The data analysis technique is multiple linear regression. From the results of data processing, socioeconomic factors were found to have a positive and significant effect on the work performance of the CU Cinta Kasih Tigapanah Cooperative employees in Karo District. T test results show that the socio-economic variable variable 2,819> t table 1,668 and with a significant level of 0.009 t table 1,668.

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