Remote sensing of ecosystem services: An opportunity for spatially explicit assessment |
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Authors: | Xiaoming Feng Bojie Fu Xiaojun Yang Yihe Lü |
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Institution: | (1) Ecoinformatics Collaboratory, Gund Institute for Ecological Economics, University of Vermont, 617 Main Street, Burlington, VT 05401, USA |
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Abstract: | Ecosystem service is an emerging concept that grows to be a hot research area in ecology. Spatially explicit ecosystem service
values are important for ecosystem service management. However, it is difficult to quantify ecosystem services. Remote sensing
provides images covering Earth surface, which by nature are spatially explicit. Thus, remote sensing can be useful for quantitative
assessment of ecosystem services. This paper reviews spatially explicit ecosystem service studies conducted in ecology and
remote sensing in order to find out how remote sensing can be used for ecosystem service assessment. Several important areas
considered include land cover, biodiversity, and carbon, water and soil related ecosystem services. We found that remote sensing
can be used for ecosystem service assessment in three different ways: direct monitoring, indirect monitoring, and combined
use with ecosystem models. Some plant and water related ecosystem services can be directly monitored by remote sensing. Most
commonly, remote sensing can provide surrogate information on plant and soil characteristics in an ecosystem. For ecosystem
process related ecosystem services, remote sensing can help measure spatially explicit parameters. We conclude that acquiring
good in-situ measurements and selecting appropriate remote sensor data in terms of resolution are critical for accurate assessment
of ecosystem services. |
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Keywords: | ecosystem service remote sensing spatially explicit assessment surrogate information |
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