scholarly journals ANALISIA HIDROGRAF SATUAN DAN WIND ROSE PLOTS PADA DAERAH ALIRAN SUNGAI SEKANAK

Jurnal Tekno ◽  
2020 ◽  
Vol 17 (2) ◽  
pp. 32-43
Author(s):  
Henggar Risa Destania ◽  
Achmad Syarifudin
Keyword(s):  
Land Use ◽  
Soil Type ◽  
Surface Runoff ◽  
Rainy Season ◽  
Control Point ◽  
Storage Conditions ◽  
Unit Hydrograph ◽  
Wind Rose ◽  
Retention Ponds ◽  
The Impact

Sekanak watershed is a basin in Palembang which is often affected by flood during the rainy season. The characteristics of the watershed by the impact of changes in land-use  by economic and settlement developments. Sekanak watershed has 3 retention ponds which have the function of accommodating temporary discharge during floods. The catchment capacity of the watershed soil type, storage conditions etc. Therefore we need an analysis of the transformation of rainfall data in the watershed into a flow at the watershed control point and an analysis of the transformation of runoff volume (effective rain) into a surface runoff hydrograph (unit hydrograph). Hydrographs measured at a watershed control point are the response or output from rain that falls on a watershed system. The size of the watershed depend on the watershed system. This is closely related in analyzing the availability of water that occurs in the watershed system.

scholarly journals Assessing the Effect of Land Use Change on Surface Runoff in a Rapidly Urbanized City: A Case Study of the Central Area of Beijing

Land ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 17 ◽  
Author(s):  
Shanshan Hu ◽  
Yunyun Fan ◽  
Tao Zhang
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Correlation Analysis ◽  
Surface Runoff ◽  
Flood Control ◽  
Central Area ◽  
Dominant Factor ◽  
Landsat Images ◽  
Rapid Urbanization ◽  
The Impact

The change in land use during the process of urbanization affects surface runoff and increases flood risk in big cities. This study investigated the impact of land use change on surface runoff in Beijing’s central area during the period of rapid urbanization from 1984 to 2019. Land use maps of 1984, 1999, 2009, and 2019 were generated by image classification of Landsat images. Surface runoffs were calculated with the Soil Conservation Service curve number (SCS-CN) model. Correlation analysis was used to identify the dominant factor of land use change affecting surface runoff. The result showed that the variation trend of surface runoff was consistent with the trend of impervious land in Beijing’s central area, which increased during 1984~2009 and decreased during 2009~2019. Correlation analysis showed that changes in surface runoff were most strongly correlated with changes in impervious surfaces when compared with the correlation of runoff with other types of land use. The results of this study may provide a reference for city flood control and urban planning in fast growing cities worldwide, especially in developing countries.

scholarly journals Land use and water quality in watersheds in the State of São Paulo, based on GIS and SWAT data

2019 ◽  
Vol 14 (5) ◽  
pp. 1
Author(s):  
Denise Piccirillo Barbosa da Veiga ◽  
Manuel Enrique Gamero Guandique ◽  
Adelaide Cassia Nardocci
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Surface Runoff ◽  
Integrated Management ◽  
Swat Model ◽  
Land Use Classification ◽  
Hydrological Simulation ◽  
Hydrological Balance ◽  
Gis Tools ◽  
The Impact

Land use influences the quality and availability of water resources, but Brazil has made little progress in integrated watershed management. This study therefore applied geoprocessing for land-use classification and evaluated the impact on the hydrological balance in order to contribute to the integrated management of water resources. Using GIS tools, two drainage areas from the water catchment points of two municipalities, Santa Cruz das Palmeiras and Piedade, were delimited; land-use mapping was carried out using the supervised classification method of satellite images, and the SWAT model was applied for hydrological simulation. The methods used were appropriate. The surface runoff was related to the absence of vegetation and the predominance of exposed soil. The relationship between land use/land cover and the hydrological balance was evidenced, especially the impact of agricultural activities and the lack of natural vegetation in the surface runoff.

scholarly journals KAJIAN KERUSAKAN DAN KERUNTUHAN TUBUH BENDUNGAN AKIBAT PENGARUH BANJIR (STUDI KASUS : BENDUNGAN CIPAMINGKIS KAB. BOGOR)

2021 ◽  
Vol 14 (2) ◽  
pp. 113
Author(s):  
Heri Suherlan
Keyword(s):  
Land Use ◽  
Carrying Capacity ◽  
Rainy Season ◽  
Water Discharge ◽  
The Body ◽  
Rice Fields ◽  
The Impact ◽  
Damage Study

Land use in the vicinity of Cipamingkis Sub-watershed is currently very intensive, so that damage to land which is feared has an impact on the level of fertility and carrying capacity of the land, resulting in the danger of flooding, erosion and landslides in the rainy season, as well as a decrease in water discharge and lack of groundwater in the season dry. The impact of these conditions Cipamingkis Weir in Sukasirna Village, Jonggol District on April 20, 2017 there was a breakdown of the lighthouse and the body of the weir which was built since 1982, the dam irrigated 4579 Ha of rice fields, unable to irrigate and in the lower reaches of the dam a lot of damage, including: eroded riverbanks, damaged river cliffs, and part of the land cracked and landslides.Seeing the condition needs to be made a research on Cipamingkis Dam Damage Study. This handling is urgently needed to reduce and reduce the consequences caused in the process of activities that cause erosion and flooding.

scholarly journals KAJIAN PENANGGULANGAN LIMPASAN PERMUKAAN DENGAN MENGGUNAKAN SUMUR RESAPAN (STUDI KASUS DI DI DAERAH PERUMNAS MADE KABUPATEN LAMONGAN)

2013 ◽  
Vol 9 (2) ◽  
Author(s):  
Chairil Saleh
Keyword(s):  
Land Use ◽  
Surface Runoff ◽  
Rapid Development ◽  
Industrial Area ◽  
Water Infiltration ◽  
Urban Region ◽  
Open Land ◽  
Rain Fall ◽  
The Impact

Desa Donowarih memiliki manajemen penanganan sampah yang buruk, maka perencanaanTPPopulation growth and rapid development led to changes in land use functions. Lots of landwhich was originally in the form of open land or forest to residential and industrial area. It is notonly urban region, but has been extended in the cultivation and protected areas, which serve awater. The impact of land use change surface runoff is rising at the same time decresing infiltrationof water into the ground. As a result the area occurs the reduced flood and infiltration into theground as ground water augmentation. The same thing happened in the Perumnas Made frequentduring the rainy season puddles. To prevent this and also to maintain the required reserves ofground water wells.This study aims to reduce runoff and prevent surface runoff and can increase the potential forground water. Besides, in order to take advantage of rainwater into the ground through wells. Sothat treatment can conserve and save water resources for long-term soil.Building design of water infiltration in this study is the recharge wells. Wells can accommodatesurface runoff and rain fall on every house gutters. Recharge wells in this study is planned in eachhome. Analysis results obtained from the total volume of rainfall with a 2-year return period is =2627.468 m3 while total volume of well is 3022.5 m3. As in every home is planned the wells withcircle radius from 0.45 to 0.75 meters with a variation to the depths of the wells ranged from 1.6 m- 2.9 m. So the wells is very effective to hold the entire discharge with a 2-year return period.Key words: Pond, Recharge Wells

scholarly journals The potential for land use change to reduce flood risk in mid-sized catchments in the Myjava region of Slovakia

2017 ◽  
Vol 47 (2) ◽  
pp. 95-112 ◽  
Author(s):  
Peter Rončák ◽  
Evelin Lisovszki ◽  
Ján Szolgay ◽  
Kamila Hlavčová ◽  
Silvia Kohnová ◽  
...  
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
River Basin ◽  
Surface Runoff ◽  
Management Practices ◽  
Agricultural Land ◽  
Arable Land ◽  
Land Use Management ◽  
Land Use Scenarios ◽  
The Impact

AbstractThe effects of land use management practices on surface runoff are evident on a local scale, but evidence of their impact on the scale of a watershed is limited. This study focuses on an analysis of the impact of land use changes on the flood regime in the Myjava River basin, which is located in Western Slovakia. The Myjava River basin has an area of 641.32 km2and is typified by the formation of fast runoff processes, intensive soil erosion, and muddy floods. The main factors responsible for these problems with flooding and soil erosion are the basin’s location, geology, pedology, agricultural land use, and cropping practices. The GIS-based, spatially distributed WetSpa rainfall-runoff model was used to simulate mean daily discharges in the outlet of the basin as well as the individual components of the water balance. The model was calibrated based on the period between 1997 and 2012 with outstanding results (an NS coefficient of 0.702). Various components of runoff (e.g., surface, interflow and groundwater) and several elements of the hydrological balance (evapotranspiration and soil moisture) were simulated under various land use scenarios. Six land use scenarios (‘crop’, ‘grass’, ‘forest’, ‘slope’, ‘elevation’ and ‘optimal’) were developed. The first three scenarios exhibited the ability of the WetSpa model to simulate runoff under changed land use conditions and enabled a better adjustment of the land use parameters of the model. Three other “more realistic” land use scenarios, which were based on the distribution of land use classes (arable land, grass and forest) regarding permissible slopes in the catchment, confirmed the possibility of reducing surface runoff and maximum discharges with applicable changes in land use and land management. These scenarios represent practical, realistic and realizable land use management solutions and they could be economically implemented to mitigate soil erosion processes and enhance the flood protection measures in the Myjava River basin.

scholarly journals Responses of soil microorganisms to land use in different soil types along the soil profiles

2020 ◽  
Vol 15 (No. 2) ◽  
pp. 125-134 ◽  
Author(s):  
Erika Gömöryová ◽  
Gabriela Barančíková ◽  
Erika Tobiašová ◽  
Ján Halás ◽  
Rastislav Skalský ◽  
...  
Keyword(s):  
Land Use ◽  
Microbial Biomass ◽  
Functional Groups ◽  
Soil Type ◽  
Soil Profile ◽  
Management Practices ◽  
Chemical Properties ◽  
Soil Samples ◽  
Soil Types ◽  
The Impact

The objective of this study was to find out how land use affects the soil microbial attributes in different soil types and to which depth. The study was performed in Slovakia (Europe) in three areas differing in soil type (Chernozem, Stagnosol, Cambisol). Within each area, three localities with different land use (forest, grassland, cropland), representing a gradient with different intensity of management, were chosen. The soil samples were taken along a single soil profile up to a depth of 1 m with 10 cm increments at each locality. In the soil samples, the basic soil chemical properties and microbial attributes were determined. The effect of the land use on the microbial biomass and basal respiration was mainly observed in the Chernozem in the top 30 cm, while in the Stagnosol, no difference in the trend in the microbial biomass between the different ecosystems along the soil profile was found. The N-mineralisation reflected the different management practices especially in the Cambisol in the top 20 cm. The most distinct differences in the catalase activity between the soils differing in land use were found in the Cambisol along the whole profile. The richness and diversity of the functional groups did not differ significantly between the soils with the different land use and also no uniform responses of the functional groups composition to the land use were observed. The microbial biomass and activity were mainly affected by the amount of the soil organic matter; the intensity of the impact differed according to the soil type.

The impact of land use and climate change on surface runoff and groundwater in Cimanuk watershed, Indonesia

Limnology ◽  
2020 ◽  
Vol 21 (3) ◽  
pp. 487-498 ◽  
Author(s):  
Iwan Ridwansyah ◽  
Meti Yulianti ◽  
Apip ◽  
Shin-ichi Onodera ◽  
Yuta Shimizu ◽  
...  
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Surface Runoff ◽  
The Impact

scholarly journals The Effect of Urban Land-Use Change on Runoff Water Quality: A Case Study in Hangzhou City

2021 ◽  
Vol 18 (20) ◽  
pp. 10748
Author(s):  
Li Li ◽  
Qidi Yu ◽  
Ling Gao ◽  
Bin Yu ◽  
Zhipeng Lu
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Water Quality Index ◽  
Surface Runoff ◽  
Quality Index ◽  
Urban Land ◽  
Runoff Water ◽  
Impervious Area ◽  
The Impact ◽  
Runoff Pollution

The main functions of this research are to guide the proportion of urban land that is used and the layout of the facilities on it, help understand the changes to surface runoff that are caused by land being used in urban development, and thus solve surface runoff pollution. Hangzhou City, China has been selected for the experiment, and the way in which its land is utilized as well as the grading of urban construction projects in the demonstration area are specifically analyzed. This study systematically distinguishes the definitions of impervious area based on the Sutherland equation and analyzes the impact of different impervious area subtypes on surface runoff water quality. Then, we compare the impact of impervious area subtypes with the impact of other land-use patterns on surface runoff water quality. This study shows the relationship between different land-use types and runoff water bodies: Land-use index can affect runoff water quality; Greening activities, impervious surface, and the water quality index are negatively correlated; the effective impervious area rate is positively correlated with the water quality index. The paper suggests that increasing the proportion of green spaces and permeable roads in build-up land reduces the effective impervious area (EIA) and thus controls land runoff pollution and improves runoff water quality.

Restructuring of Backrest and Drainage Provision System in the Campus Area

2021 ◽  
Vol 6 (4) ◽  
pp. 16-21
Author(s):  
Ofik T. Purwadi ◽  
L. Afriani ◽  
A. Zakaria
Keyword(s):  
Land Use ◽  
Surface Runoff ◽  
Rainy Season ◽  
Open Space ◽  
Land Use Changes ◽  
Drainage System ◽  
Flood Inundation ◽  
Drainage Channels ◽  
The University ◽  
Artificial Reservoirs

The University of Lampung area, especially in the Faculty of ISIP, FEB, and FT is a densely packed student area. This area has undergone many land-use changes. The condition of the land as a green open space has changed its function to become an area for lecture buildings and offices. One of the impacts is an increase in direct surface runoff and a decrease in the quantity of water that seeps into the ground, this condition causes flooding during the rainy season. To facilitate the rehabilitation of the drainage system in the University of Lampung area, it is necessary to redesign the drainage system of the University of Lampung area. Rehabilitation of drainage channels is carried out to resolve flood inundation points that occur during the rainy season. Rainwater that is channeled through drainage channels is directed to natural or artificial reservoirs. The collected rainwater is used to recharge groundwater through natural infiltration methods. The analysis carried out in this study includes hydrological analysis and analysis of the existing drainage sections and the solutions are given. The hydrological analysis aims to calculate the planned discharge using the rational method. Modeling with the application used in this study aims to determine the capacity of the water level in the existing channel. Based on the results of the analysis, in the area, the Faculty of Engineering experienced runoff and inundation. This situation requires rehabilitation of the Lampung University area drainage system.

Sign in / Sign up

Export Citation Format

Share Document