Methods for Leaf Area Index Determination Part I: Theories, Techniques and Instruments
نویسندگان
چکیده
Rapid, reliable and objective estimations of Leaf Area Index (LAI) are essential for numerous studies of the atmosphere, as LAI is very often a critical parameter in process-based models of vegetation canopy response to global environmental change. This paper compiles current knowledge concerning the use of direct and indirect methods for LAI determination. The emphasis will be on techniques, theories and instruments. The value of optical LAI measurements via hemispherical photography has already been demonstrated in previous studies. We suggest that the use of a digital camera with high dynamic range has the potential to overcome a number of described technical problems about hemispherical photography.
منابع مشابه
Review of methods for in situ leaf area index determination Part I. Theories, sensors and hemispherical photography
Rapid, reliable and objective estimations of leaf area index (LAI) are essential for numerous studies of atmosphere–vegetation interaction, as LAI is very often a critical parameter in process-based models of vegetation canopy response to global environmental change. This paper reviews current knowledge concerning the use of direct and indirect methods for LAI determination. The value of optica...
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