How can you use GIS to monitor wetland ecosystems?

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Wetlands are vital ecosystems that provide many ecological and economic benefits, such as water purification, flood regulation, biodiversity conservation, and recreation. However, wetlands are also threatened by human activities, such as urbanization, agriculture, pollution, and climate change. To monitor the health and changes of wetland ecosystems, you can use geographic information systems (GIS) as a powerful tool. GIS can help you collect, analyze, and visualize spatial data from different sources, such as remote sensing, field surveys, and historical records. In this article, you will learn how you can use GIS to monitor wetland ecosystems in four steps.

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Mustafa Kamal Naser

Expert in Maritime Affairs Captain in Bangladesh Navy
José Luis Pizarro Astudillo

Ingeniero Agrónomo Especialización Extensión Comunidades y Participación Ciudadana
Benedict Odhiambo

Assistant Surveyor at REM Consultants

1 Step 1: Define your objectives and scope

Before you start using GIS, you need to define your objectives and scope for monitoring wetland ecosystems. What are the questions you want to answer? What are the indicators you want to measure? What are the spatial and temporal scales you want to cover? For example, you may want to monitor the extent, quality, or function of wetlands in a specific region over a certain period. You may also want to compare different types of wetlands, such as freshwater, coastal, or peatland. By defining your objectives and scope, you can narrow down your data needs and methods.

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Mustafa Kamal Naser

Expert in Maritime Affairs Captain in Bangladesh Navy
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Geographic Information Systems (GIS) play a crucial role in monitoring wetland ecosystems. They facilitate mapping and inventorying wetlands, tracking changes over time. GIS aids in monitoring water levels, inundation patterns, and vegetation health through remotely sensed data, informing assessments of wetland conditions. Additionally, GIS models wetland dynamics, predicting the impacts of human activities and climate change.

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José Luis Pizarro Astudillo

Ingeniero Agrónomo Especialización Extensión Comunidades y Participación Ciudadana
(已编辑)
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Según mi experiencia "la vigilancia de los ecosistemas de humedales" lo realiza la sociedad (pero esta afirmación es muy general y con falta de responsabilidad o esta puesta en terceros o un ente abstracto). Entoces la siguiente pregunta o derivada es quién realiza la vigilancia.... esto nos impulsa a pensar en EL ESTADO, UN SERVICIO PUBLICO, UN GRUPO DE PERSONAS CERCANO, UNA ORG, NOSOTROS..... en consequence una de las primeras escalas que desarrollaría es para quién o quiénes generariamos dicha información espacial y temporal y que tipo de información le sería útil a ese ENTE QUE MONITOREA para una correcta vigilancia. Mi experiencia me indica que cada entidad valora distintos componentes de territorio a proteger o vigilar.

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2 Step 2: Acquire and process spatial data

The next step is to acquire and process spatial data that are relevant to your objectives and scope. You can use different sources of spatial data, such as satellite images, aerial photos, radar images, lidar data, or drones. These sources can provide you with information on the physical characteristics, vegetation, land use, and hydrology of wetlands. You can also use field data, such as soil samples, water quality measurements, or biodiversity surveys, to validate and complement your spatial data. To process your spatial data, you can use various GIS software and tools, such as ArcGIS, QGIS, or Google Earth Engine. You can perform tasks such as georeferencing, clipping, masking, classification, and accuracy assessment.

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Benedict Odhiambo

Assistant Surveyor at REM Consultants
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Creat the LULC maps of the study area of different times then carry out your analysis to determine the different changes that have occurred over time, this can be done using GEE, python, Arcmap, ENVI or even ERDAS

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3 Step 3: Analyze and model spatial data

The third step is to analyze and model your spatial data to answer your questions and measure your indicators. You can use different types of spatial analysis and modeling techniques, such as overlay, buffer, proximity, zonal, network, or statistical analysis. For example, you can use overlay analysis to identify the overlap between wetlands and protected areas. You can use buffer analysis to measure the distance between wetlands and roads. You can use zonal analysis to calculate the average elevation or slope of wetlands. You can use network analysis to determine the connectivity or fragmentation of wetlands. You can use statistical analysis to test the relationships or trends between wetlands and other variables.

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Meaghan Thompson

Geographic Information Systems Analyst | Expert in ArcGIS Products
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When demonstrating overlap, it is important not to use solid, opaque symbology for all overlapping layers. When conveying to your audience the overlap of, for example, wetlands and protected areas, it would be wise to have at lease one layer be dashed, dotted, or slightly transparent to see the layer below for the sake of clarity.

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4 Step 4: Visualize and communicate spatial data

The final step is to visualize and communicate your spatial data to inform decision-makers, stakeholders, and the public. You can use different methods of spatial visualization and communication, such as maps, charts, graphs, dashboards, or web applications. For example, you can use maps to show the location, distribution, or change of wetlands. You can use charts or graphs to illustrate the patterns, comparisons, or correlations of wetland indicators. You can use dashboards or web applications to display interactive and dynamic information on wetland ecosystems. You can also use GIS to create reports, presentations, or publications that summarize and explain your findings and recommendations.

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5 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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How can you use GIS to monitor wetland ecosystems?

1

2

3

4

5

1 Step 1: Define your objectives and scope

2 Step 2: Acquire and process spatial data

3 Step 3: Analyze and model spatial data

4 Step 4: Visualize and communicate spatial data

5 Here’s what else to consider

Geographic Information Systems (GIS)

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How can you use GIS to monitor wetland ecosystems?

1

2

3

4

5

1 Step 1: Define your objectives and scope

2 Step 2: Acquire and process spatial data

3 Step 3: Analyze and model spatial data

4 Step 4: Visualize and communicate spatial data

5 Here’s what else to consider

Geographic Information Systems (GIS)

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