scholarly journals A GIS Based Morphometric Analysis of Watershed for Soil Erosion Planning

2021 ◽  
Author(s):  
Santosh Wagh ◽  
Vivek Manekar
Keyword(s):  
Soil Erosion ◽  
Morphometric Analysis ◽  
Sediment Load ◽  
Morphometric Parameters ◽  
High Category ◽  
Priority Ranking ◽  
Arc Gis ◽  
Gis Software ◽  
Very High

Abstract Soil erosion, if remain non attentive, will increase the sediment load of the river and also affecting the life of the hydraulic structures constructed across it. Hence, proper investigations related to the soil erosion is very much essential for watershed planners and designers. In the present study, morphometric analysis is carried out for basic, linear, areal, shape and landscape aspects using 28 morphometric parameters for Bhima river watershed to prioritize and categorized it based on its erosive potential. Total 48 toposheet of Survey of India of the scale 1:50,000 are used to delineate the watersheds for the preparation of base map containing information about drainage, contours, etc. so as to ensure accuracy and quality of the work. The All India Soil and Land Use Survey (AISLUS) codification is adopted for the study area. According to AISLUS, the study area falls under region 4, covered in 19 watersheds. Morphometric parameters in Arc-GIS software and compound factor method is employed to identify the sub-watersheds which are susceptible to soil erosion. Final Priority Ranking (FPR) based category map of watersheds is reported in this study by categorized it under five categories indicating % area of each category (very high category: 15.94%; high category: 23.50%; medium category: 12.73%; low category: 23.90%; and very low category: 23.93%). Based on the findings, this study is suggesting suitable sites soil conservation practices for reducing the sediment load in Bhima river watersheds as well as Ujjani reservoir, which will be useful to the concerning authorities for better management.

Morphometric Analysis of Kolavadi Sub-Watershed in Bhor Tahsil Using GIS Techniques

2019 ◽  
pp. 1-10
Author(s):  
Manojkumar Devne ◽  
Nitin Mundhe ◽  
Akshada Kamble ◽  
Ganesh Dhawale
Keyword(s):  
Sustainable Development ◽  
Water Resources ◽  
Soil Erosion ◽  
Morphometric Analysis ◽  
Drainage Density ◽  
Drainage Basins ◽  
Bifurcation Ratio ◽  
Gis Techniques ◽  
Arc Gis ◽  
Structural Disturbances

The growing demand and competition for water from domestic, industrial and agricultural sectors reached utmost limit. Drainage basins, catchments, and sub-catchments are the hydrological units ideally suited for planning of conservation of land and water resources. GIS techniques are useful for analysis of morphometric properties of any watershad. Morphometric aspects: linear, relief, and areal aspects of Kolavadi sub-watershed of Upper Nira basin were analyzed using spatial tools and arc-hydro tool in Arc GIS 10.3. The bifurcation ratio (2 to 4.5) indicates structural disturbances and mature topography with higher degree of drainage integration. This watershed shows less elongated shape with low relief, moderate to gentle slope, moderate drainage density and highly prone to soil erosion. Techniques used in study and results are useful for planning and monitoring the sub-watersheds for sustainable development.

scholarly journals Characterization and assessment of water quality in mountainous sub-basins on the Manhuaçu River, MG

2021 ◽  
Vol 8 (4) ◽  
pp. 1621-1632
Author(s):  
RODOLFO Alves BARBOSA ◽  
Julieta Bramorski ◽  
Kelly Cristina Tonello ◽  
Alexandre Simões Lorenzon ◽  
João Batista Lúcio Corrêa ◽  
...  
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Surface Waters ◽  
Riparian Zone ◽  
Coffee Plantations ◽  
Level Curves ◽  
Arc Gis ◽  
Water Courses ◽  
Gis Software

The objective of this chapter is to carry out an analysis of the water quality of six different sites in the Manhuaçu River basin and to propose measures for the saved sites. Changes in land cover occur and can cause degradation of the landscape. Hydrographic data selected by IBGE and IEDE level curves on a scale of 1: 50,000 were used and performed on MDEHC using Arc GIS software. Six different locations were collected in the field in the Manhuaçu River basin in February 2019. The records provided by SAAE Manhuaçu were also used. How the analyzes were evaluated and using a Water Quality Index (IQA) for the saved locations. As sub-basins Córrego Bom Jesus, Rio Manhuaçu and Rio São Luis lowered low values of dissolved oxygen with values of 0.0; 2.3 and 2.5 mg l-1, respectively. Córrego Bom Jesus had the lowest IQA value, followed by Rio Manhuaçu and Rio São Luis with values of 36.69; 44.92 and 47.84 values considered ruins. High levels of pesticides were not detected in surface waters. The product of coffee plantations close to water courses and a potential contamination by pesticides are of concern, and it is necessary to increase a protected area in the riparian zone.

scholarly journals WATERSHED PRIORITIZATION ACROSS ERBIL PROVINCE FOR SOIL EROSION MANAGEMENT VIA MORPHOMETRIC ANALYSIS

2020 ◽  
Vol 51 (5) ◽  
pp. 1262-1275
Author(s):  
Mohammed & Karim
Keyword(s):  
Soil Erosion ◽  
Morphometric Analysis ◽  
Land Use Land Cover ◽  
Reasonable Accuracy ◽  
Watershed Prioritization ◽  
Rehabilitation Programs ◽  
Standard Procedures ◽  
Order Preference ◽  
Topsis Approach ◽  
Very High

Soil erosion is one of the foremost factors giving rise to watershed deterioration due to improper and unwise utilization of natural resources without proper vision, particularly in developing countries like Iraq. Since it is not possible to implement rehabilitation programs over all areas at a time, prioritization plays a major role in identification of the areas which are in need of immediate actions. Accordingly, the current study was conducted to perform morphometric analysis as the basis for prioritization. To achieve the above objective, 30 watersheds of different scales were delineated within Erbil governorate and standard procedures were followed to carry out morphometric analysis. Prioritization ranks were determined for the study watersheds based on computation of compound factors and on the technique for order preference by similarity to ideal solution (TOPSIS). The results indicated that nearly two approaches offered similar results. The regression analysis indicated that the priority rank from (TOPSIS) can be predicted from the priority rank from compound factor computation with a reasonable accuracy. Based on TOPSIS approach, watersheds: Kawlan-smelan, Nawandee, Warte, Prdi-qasre, Nawprdan, Darbandy-rayat, Dargalla and Mergasor fall within the very high priority class and as a consequence immediate actions should be taken to protect these watersheds. By contrast, the watersheds: Kasnazan, Smaquly, Bestana, Kawanyan, Rulka and Degala 1 are categorized under the low prioritization level. Further improvements in specifying the priority ranks can be expected upon coupling land use/land cover with morphometric analysis.

scholarly journals Prioritization of Erosion Prone Micro-Watersheds Using Morphometric Analysis coupled with Multi-Criteria Decision Making

Proceedings ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 11 ◽  
Author(s):  
S. Nitheshnirmal ◽  
Ashutosh Bhardwaj ◽  
C. Dineshkumar ◽  
S. Abdul Rahaman
Keyword(s):  
Soil Erosion ◽  
Morphometric Parameters ◽  
Sar Interferometry ◽  
Soil Productivity ◽  
Ideal Solution ◽  
R Software ◽  
Environmental Threat ◽  
Conservation Measures ◽  
Hierarchy Process ◽  
Very High

Soil erosion is a serious environmental threat amongst the prevailing major natural hazards which affects the livelihood of millions of people around the world. The deterioration of nutrient-rich topsoil can affect the sustainability of agriculture and various ecosystems by decreasing soil productivity. Conservation measures should be implemented in those regions which are critical to soil erosion. The identification of areas susceptible to soil erosion through prioritization of watershed can help in proper planning and implementation of suitable conservational measures. Therefore, in this study, the prioritization of 23 micro-watersheds present in the Dnyanganga watershed of Tapti River basin is carried out based on morphometric parameters and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). TanDEM-X 90m openly accessible DEM generated from SAR interferometry, obtained through DLR, is used for determining the morphometric parameters. These parameters are grouped into linear, areal and relief aspects. Initially, the relative weights of various morphometric parameters used in TOPSIS were determined using Saaty’s Analytical Hierarchy Process (AHP). Thereafter, the MCDM package in R software was utilized to implement TOPSIS. The micro-watersheds were classified into very high (0.459–0.357), high (0.326–0.240), moderate (0.213–0.098), and low (0.096–0.088) prioritization levels based on the TOPSIS highest closeness (Ci+) to ideal solution. It is evident from the results that micro-watersheds (MW10, MW18, MW19, MW2, MW11, and MW17) are highly susceptible to soil erosion and thus, conservation measures can be carried out in these micro-watersheds with the priority to ensure the sustainability of future agriculture by preventing excessive soil loss through erosion.

scholarly journals Drainage Morphology Approach For Water Resources Development of Sub Watershed in Krishna Basin

2013 ◽  
pp. 202-210
Author(s):  
Abhijit M. Zende ◽  
R. NAGRAJAN
Keyword(s):  
Morphometric Analysis ◽  
Drainage Basin ◽  
Drainage Density ◽  
Size Number ◽  
Analysis Technique ◽  
Gis Technique ◽  
Surface Development ◽  
Drainage Line ◽  
Arc Gis ◽  
Gis Software

The morphometric analysis of study area has been carried out using Arc GIS software. The study area covers 3035 sq.km. The drainage network was delineated using SOI topographical map of no. 47 K – 5, 6, 7, 8, 10, 11, 12, 47 L - 9 on the scale 1:50,000. Morphological characterized of the drainage line as appear in shape ,size, number, order, length, Dd, Sf, Rb, Fs, T, Rc are derived to trace its usefulness for surface development . The present study involves Geographic Information System (GIS) analysis technique to evaluate and compare linear relief and aerial morphometry of Yerala watershed of Krishna River. Yerala watershed is basically 7th order drainage and is mainly dendritic to sub dendritic. Drainage density and texture of the drainage basin is 6.89 km/km2, 18.60 respectively. The drainage frequency of Yerala watersheds is 1.96 where as the bifurcation ratio ranges from 2 to 11. Hence from the study it can be conclude that GIS technique proves to be competent tool in morphometric analysis.

Socio-Economic conditions of women under Saansad Adarsh Gram Yojana: A case study of Jayapurvillage of Arajiline Block, District Varanasi

2020 ◽  
Vol 66 (3) ◽  
pp. 236-246
Author(s):  
Abhilasha Sharma ◽  
◽  
Suman Singh ◽  
Keyword(s):  
Economic Condition ◽  
Graphical Representation ◽  
Primary Data ◽  
Secondary Source ◽  
Rural Development Programme ◽  
Arc Gis ◽  
Condition Of Women ◽  
Gis Software

Saansad Adarsh Gram Yojana (SAGY) is a rural development programme and it was launched on 11 October 2014 with a mandate to develop three Adarsh Grams by 2019 and to substantially improve the quality of life of all sections of the population through improved basic amenities, higher productivity, enhanced human development, better livelihood opportunities, access to rights and entitlements especially for women and weaker sections. According to the census of 2011, in the Jayapur village, almost 46% of total females were illiterate, only 15% were main-worker and 29% of the total household was in the BPL category. In the present paper an attempt has been made to analyze the socio-economic condition of women after the implementation of SAGY in Jayapur village of Arajiline block, Varanasi District, U.P. The study is carried out in the adopted village of Prime Minister. The study is mainly based on a primary survey of data but a secondary source of data also used from the Block Development Office, Gram panchayat and Anganwadi Centres. Primary data were collected from 80 female respondents in the age group of 18-49 by using purposive sampling through the interview schedule. Both qualitative and quantitative techniques have used in this study. For a graphical representation of the data Pie charts, bar diagram, Tables and maps have prepared by using M.S. Excel and Arc GIS software. The results show that inaccessibility of water and sanitation facilities is still a major problem for the women of this village because they spend a lot of time in collecting water through hand-pumps and wells even for using the toilets they stored the water. Due to water scarcity, most of the women used to defecate in open. Although, Availability of electricity has made the life of women very easy especially in the completion of household chores such as serving food for families, teaching their children and in doing some productive works. Hence, there is an improvement in the socio-economic condition of women after the implementation of the SAGY but it is not at a satisfactory level. There is a need to investigate the proper implementation and fill the required gap.

scholarly journals Analisis Butir Soal Ulangan Semester Ganjil Mata Pelajaran Matematika Kelas VIII SMP

2021 ◽  
Vol 1 (4) ◽  
pp. 682-694
Author(s):  
Khairil Basri ◽  
Baidowi Baidowi ◽  
Junaidi Junaidi ◽  
Muhammad Turmuzi
Keyword(s):  
High School ◽  
Junior High School ◽  
High Reliability ◽  
Difficulty Level ◽  
Point Problem ◽  
Descriptive Research ◽  
High Category ◽  
Academic Year ◽  
Very High

This study aims to know the quality of Grain Analysis of Odd Semester Test Questions Of Mathematics Subjects Grade VIII at State Junior High School 1 Kediri In The Academic Year 2018/2019 which is reviewed in terms of Validity, Reliability, Difficulty Level, Differentiating Power, and Effectiveness of Phishing. This is a descriptive research. The result of this research shows that: in terms of Validity, the amount of valid questions up to 14  points of the question (70%) and invalid question are up to 6 points of question (30%); in terms of Reliability, including questions that have high reliability is with a coefficient 0.79; in terms of Difficulty Level, the number of questions that are include in the difficult categorythere are 2 points (10%), which belongs to the moderate category there are 17 items (85%), and include in easy category there is 1 item(5%); in terms of  Differentiating power, the number of problems categorized as very bad as 1 item (5%), bad category as much as 1 item (5%), categorized enough as many as 9 points (45%), good category as much as 6 items (30%) and very high category 3 items (15%); reviewed in terms of Effectiveness of phishing, there are 15 points of question (75%) with excellent outwits, 5 points of question (25%) with a good phishing, 0 point problem (0%) with a less bad phishing and with a bad phishing 0 point problem (0%).

Peningkatan Kemampuan Berpikir Kritis Peserta Didik Pada Materi Termokimia Di Sma Pekanbaru Melalui Penerapan Strategi Pembelajaran Process Oriented Guided Inquiry Learning (POGIL)

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Maria Erna ◽  
R. Usman Rery ◽  
Wiji Astuti ◽  
Sulismayati
Keyword(s):  
Critical Thinking ◽  
Inquiry Learning ◽  
Guided Inquiry ◽  
Test Technique ◽  
Critical Thinking Ability ◽  
High Category ◽  
Thinking Ability ◽  
Process Oriented ◽  
Academic Year ◽  
Very High

Penelitian ini dilakukan untuk mengetahui peningkatan kemampuan berpikir kritis siswa pada mata pelajaran Termokimia melalui penerapan strategi Process Oriented Guided Inquiry Learning (POGIL) (POGIL) di kelas 11 SMAN 8 Pekanbaru. Penelitian ini menggunakan One Group Pretest-Posttest Design yang diadakan di SMAN 8 Pekanbaru pada tahun akademik 2017/2018. Objek penelitian adalah XI MIA 1 yang terdiri dari 32 siswa. Pengumpulan data siswa menggunakan teknik tes pretest dan posttest. Keberhasilan pembelajaran dalam meningkatkan kemampuan berpikir kritis siswa ditunjukkan oleh peningkatan kriteria berpikir kritis dari hasil pretest dan posttest yang menganalisis persentase skor berpikir kritis. Hasil penelitian menunjukkan bahwa ada peningkatan kemampuan berpikir kritis siswa. Siswa mengalami peningkatan dari kategori berpikir kritis sangat rendah ke kategori sangat tinggi dengan persentase 15,625%, dari kategori rendah ke kategori sangat tinggi adalah 40,625%, dari kategori rata-rata ke kategori sangat tinggi adalah 9,375%, dari kategori sangat rendah hingga kategori tinggi adalah 12,5%, dan dari kategori rendah ke kategori tinggi adalah 21,875%. Berdasarkan analisis data, dapat disimpulkan bahwa penerapan strategi Process Oriented Guided Inquiry Learning (POGIL) mampu meningkatkan kemampuan berpikir kritis siswa pada mata pelajaran Termokimia di SMAN 8 Pekanbaru.   The research was held to determine the improvement of student’s critical thinking ability on Thermochemistry subject through implementation of Process Oriented Guided Inquiry Learning (POGIL) strategy at 11th Grade of SMAN 8 Pekanbaru. This research used One Group Pretest-Posttest Design which held in SMAN 8 Pekanbaru at academic year of 2017/2018. The object of research is XI MIA 1 that consist of 32 students. The data collection of students used test technique which are pretest and posttest. The success of learning in improvement of student’s critical thinking ability is showed by improvement of criteria of critical thinking from pretest and posttest results that analyzed the score percentage of critical thinking. The result of research showed that there was an improvement of student’s critical thinking ability. The students have an increase from the very low category of critical thinking to very high category with percentage of 15,625%, from low category to very high category is 40,625%, from average category to very high category is 9,375%, from very low category to high category is 12,5%, and from low category to high category is 21,875%. Based on data analyze, it can be concluded that implementation of Process Oriented Guided Inquiry Learning (POGIL) strategy is able to improve student’s critical thinking ability on Thermochemistry subject at SMAN 8 Pekanbaru.

Ground water quality of selected areas of Punjab and Sind Provinces, Pakistan: Chemical and microbiological aspects

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Ionic Concentration ◽  
Chloride Ions ◽  
Potassium Ions ◽  
Ammonium Ions ◽  
High Concentration ◽  
Phosphate Ions ◽  
Sodium Magnesium ◽  
Very High ◽  
Microbiological Aspects

The assessment of groundwater is essential for the estimation of suitability of water for safe use. An attempt has been made to study the groundwater of selected areas of Punjab (Sheikhupura & Sahiwal) and Sindh (Sindh, Jawar Dharki and Dharki), Pakistan. The results indicate that pH, color and odor were all within limits of WHO that is pH ranges 6.5–8.5, colorless and odorless, respectively. The high values of suspended solids were observed in the Sindh-1 and Dharki samples. Microbiologically only Sahiwal and Jawar Dharki were found fit for drinking purpose. Trace metals analysis of Sheikhupura-1 and Sindh-1 showed that values do not fall within limits of WHO for Iron. The ionic concentration analysis showed that high bicarbonate (HCO3-), ions are present in the samples of Sahiwal and Dharki; Sindh-1 and Jawar Dharki samples showed very high concentration for chloride ions, all samples were satisfactory level for sulphate (SO42-), sodium, magnesium and phosphate ions except samples of Sindh-1 and Jawar Dharki. High concentration of calcium and potassium ions was observed in samples of Sindh-1, while all other samples were found fit for drinking purposes in respect of nitrate, nitrite and ammonium ions. The high concentration of Fluoride was found only in Sheikhupura-2 samples.

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