Study of Land Use Change for Preparation of Watershed Management Planning

Watershed management can be started by evaluation how the response of watershed hydraulic toward rainfall and become run off that will flow downstream. Transformation of rain into flow is a method used to find out effect of land use change and its parameter toward flow hydrograph. Watershed Kr. Pase is one of most rapid reduction of forest area. Land use change occurred in this watershed affecting discharge amount of run off which required further calculation. This calculation using the rational method by calculating rainfall intensity parameter (I),watershed area (A), and flow coefficient (C) in watershed. Data of land use provide in this study are on year 2007, 2013, and 2017 which will examine watershed Kr. Pase into subwatershed model, whereas from map analysis obtained three subwatersheds. After some calculation off run off discharge at watershed Kr. Pase, than it is use sub-watershed with longest concertration time (tc).

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Analisis Respons Hidrologi untuk Mendukung Perencanaan Pengelolaan Sub-DAS Opak Hulu, Daerah Istimewa Yogyakarta

Jurnal Ilmu Pertanian Indonesia ◽

10.18343/10.18343/jipi.25.4.503 ◽

2020 ◽

Vol 25 (4) ◽

pp. 503-514

Author(s):

Nicko Widiatmoko ◽

Suria Darma Tarigan ◽

Enni Dwi Wahjunie

Keyword(s):

Land Use ◽

Watershed Management ◽

Water Conservation ◽

Surface Runoff ◽

Swat Model ◽

Base Flow ◽

Soil And Water Conservation ◽

Hydrological Response ◽

Management Planning ◽

Soil And Water

Land use change is one of the causes of the decreasing of hydrological function that affects the hydrological response of a watershed. Planning of watershed management needs to be conducted to improve the hydrological function of the watershed. This study aims to determine the hydrological response in supporting watershed management planning in Opak Hulu Watershed. This research was conducted using the Soil and Water Assessment Tool (SWAT) hydrological modeling. The method used included data collection, processing of input data, running of SWAT model, calibration, validation, and the decision of the best watershed management scenarios. The results of the analysis of land use changes in the Opak Hulu Watershed in 2012–2017 had a significant increase in mixed upland agriculture (3.21%) and shrubs (1.43%). Meanwhile, open field (2,31%) and dry land agriculture (1.71%) decreased significantly. Based on the analyzed hydrological scenario, Soil and Water Conservation techniques can decrease the surface runoff and increase the lateral flow and base flow. The scenario is able to decrease the surface runoff by 542.22 mm (27.09%). It increases lateral flow and base flow by 321.82 mm (13.15%) and 797.28 mm (18.32%), respectively. The best watershed management planning with Soil and Water Conservation technique is able to reach Annual Flow Coefficient value to 0,33 (moderate) and 69,85 (moderate) for Flow Regime Coefficient. Keywords: land use, soil and water conservation techniques, SWAT model, watershed

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Ecosystems and Land Use Change

10.1029/gm153 ◽

2004 ◽

Cited By ~ 20

Keyword(s):

Land Use ◽

Land Use Change

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Assessment of land-use change in coastal areas through geographical information systems

RECUBRIMIENTO COMESTIBLE CON BASE DE PIÑON MEXICANO (Jatropha curcas) SOBRE LA CALIDAD DE CHAYOTE MINIMAMENTE PROCESADO ◽

10.32854/agrop.v13i10.1872 ◽

2020 ◽

Vol 13 (10) ◽

Author(s):

Verónica Lango-Reynoso ◽

Karla Teresa González-Figueroa ◽

Fabiola Lango-Reynoso ◽

María del Refugio Castañeda-Chávez ◽

Jesús Montoya-Mendoza

Keyword(s):

Land Use ◽

Land Use Change ◽

Geographical Information Systems ◽

Design Methodology ◽

Scientific Information ◽

Coastal Ecosystems ◽

Coastal Areas ◽

Geographical Information ◽

Coastal Zones ◽

Computer Based

Objective: This article describes and analyzes the main concepts of coastal ecosystems, these as a result of research concerning land-use change assessments in coastal areas. Design/Methodology/Approach: Scientific articles were searched using keywords in English and Spanish. Articles regarding land-use change assessment in coastal areas were selected, discarding those that although being on coastal zones and geographic and soil identification did not use Geographic Information System (GIS). Results: A GIS is a computer-based tool for evaluating the land-use change in coastal areas by quantifying variations. It is analyzed through GIS and its contributions; highlighting its importance and constant monitoring. Limitations of the study/Implications: This research analyzes national and international scientific information, published from 2007 to 2019, regarding the land-use change in coastal areas quantified with the digital GIS tool. Findings/Conclusions: GIS are useful tools in the identification and quantitative evaluation of changes in land-use in coastal ecosystems; which require constant evaluation due to their high dynamism.

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Monitoring land use change in the Lake Taupo catchment between 1975, 1990 and 2002 using satellite remote sensing data

Proceedings of the New Zealand Grassland Association ◽

10.33584/jnzg.2007.69.2680 ◽

2007 ◽

pp. 17-22

Author(s):

H. Lilienthal ◽

A. Brauer ◽

K. Betteridge ◽

E. Schnug

Keyword(s):

Remote Sensing ◽

Water Quality ◽

Land Use ◽

Land Use Change ◽

Satellite Remote Sensing ◽

Remote Sensing Data ◽

Native Vegetation ◽

Lake Water Quality ◽

Livestock Farming ◽

Slow Decline

Conversion of native vegetation into farmed grassland in the Lake Taupo catchment commenced in the late 1950s. The lake's iconic value is being threatened by the slow decline in lake water quality that has become apparent since the 1970s. Keywords: satellite remote sensing, nitrate leaching, land use change, livestock farming, land management

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