Site-based and remote sensing methods for monitoring indicators of vegetation condition: An Australian review
| Autor: | V. Lawley, Megan Lewis, Bertram Ostendorf, Ken Clarke |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Site-based
Integrated methods Monitoring 010504 meteorology & atmospheric sciences 0211 other engineering and technologies Land management General Decision Sciences 02 engineering and technology 01 natural sciences Ecosystem services medicine Overgrazing Ecology Evolution Behavior and Systematics 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing Decision Sciences(all) Ecology Fire regime business.industry Environmental resource management Natural resource Remote sensing (archaeology) Land degradation Environmental science medicine.symptom business Vegetation (pathology) Native vegetation condition |
| Zdroj: | Ecological Indicators. 60:1273-1283 |
| ISSN: | 1470-160X |
| DOI: | 10.1016/j.ecolind.2015.03.021 |
| Popis: | Native vegetation around the world is under threat from historical and ongoing clearance, overgrazing, invasive species, increasing soil and water salinity, altered fire regimes, poor land management and other factors, resulting in a degradation of natural ecosystem services. Consequently, maintaining and improving native vegetation condition is a target frequently adopted by natural resource managers and government agencies world-wide. Adequate monitoring of vegetation condition remains a prerequisite for environmental decision-making and for tracking progress towards management goals. Throughout we consider vegetation condition to include the compositional, structural and functional attributes of vegetation relative to undisturbed vegetation of the same type. Site-based methods have long been used to assess compositional, structural and functional attributes as indicators of vegetation condition, and these methods continue to be used widely today. With developing technologies, remote sensing methods are being employed increasingly for monitoring a range of remotely detectable properties of vegetation, and there is now a growing demand to explicitly integrate the two approaches for mapping and monitoring vegetation condition across a range of scales. Here we review the attributes of vegetation identified as important for monitoring vegetation condition, those indicators that are best measured using traditional site-based methods and those that are more readily detectable using remote sensing methods, including their application in operational programmes within Australia. Further to this we review recent literature on the integration of the two approaches for monitoring indicators of vegetation condition. We find that remote sensing methods have the advantage of offering broad scale automated and repeatable methods for monitoring indicators of vegetation condition, but when combined with detailed ecological site-based data, together can improve monitoring for answering ecological questions across a range of scales. Further work, however, is required to effectively integrate the two approaches for mapping and monitoring vegetation condition. |
| Databáze: | OpenAIRE |
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