Video Experimental Relacionado
Updated: Mar 1, 2026
11:53
Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
Published on: December 9, 2012
13.5K
Un enfoque explícito espacial para identificar, priorizar y estimar los costos asociados con posibles servidumbres de
Kelsey D Karnish1, Emily K Zimmerman1, John C Tyndall1
1Department of Natural Resource Ecology and Management, Iowa State University, Ames, Iowa, USA.
Journal of environmental quality
|February 28, 2026
Resumen
Restauración de Iowa
Área de la Ciencia:
- Ciencia Agrícola
- Servicios Ecosistémicos
- Planificación de la Conservación
Sus antecedentes:
- El cambio en el uso de la tierra en el Corn Belt de EE. UU. ha degradado los servicios ecosistémicos.
- La restauración de las llanuras de inundación ofrece importantes oportunidades de conservación.
- La priorización de los esfuerzos de conservación para obtener el máximo beneficio ambiental y financiero es un desafío.
Objetivo del estudio:
- Identificar y priorizar oportunidades potenciales de servidumbres de llanuras de inundación en Iowa.
- Evaluar los costos asociados con la restauración de estas áreas de alta prioridad.
- Desarrollar un enfoque accesible para los planificadores de la conservación.
Principales métodos:
- Se utilizaron datos geoespaciales (intervalos de retorno de inundaciones, límites de campos, uso de la tierra).
- Se identificaron 141.314 oportunidades potenciales de servidumbre, priorizando 2707 sitios de alta prioridad.
- Se estimaron los costos utilizando datos de suelo, productividad de cultivos, valor de la tierra y vegetación.
Principales resultados:
- Se identificaron 2707 ubicaciones de servidumbres de llanuras de inundación de alta prioridad que suman 56.300 ha.
- Se estimaron los costos anuales para restaurar las servidumbres de alta prioridad en $84.8 millones de USD.
- Se desarrolló una metodología replicable para la planificación de la conservación.
Conclusiones:
- Las servidumbres de llanuras de inundación presentan una estrategia viable para restaurar los servicios ecosistémicos en paisajes agrícolas.
- El enfoque de priorización y estimación de costos desarrollado puede guiar las inversiones en conservación.
- Esta metodología se puede aplicar en Iowa y otras regiones predominantemente agrícolas.
Videos de Conceptos Relacionados
01:17Design Example: Analyzing Capacity Contours for Flood Risk Assessment
342
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
342
01:17Design Example: Alignment of a Road Line Using GIS
367
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
367
01:29Applications of GIS: Disaster Management and Emergency Response
588
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
588
01:23Plane Potential Flows
1.0K
Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform...
Uniform...
1.0K
01:19Design Example: Maintaining Level of an Embankment
482
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
482
01:10Design Example: Measuring Distance Between Two Points with Obstructions
452
When measuring distances in areas with physical obstructions, such as a lake in a field, surveyors must employ techniques to calculate accurate lengths without direct line measurements. One effective method is the offset technique, which allows for precise distance estimation over inaccessible stretches.In this scenario, a surveyor must measure a side of an area that crosses a lake. Since the measuring tape cannot span the lake, the surveyor begins by establishing a baseline that aligns with...
452