Journal
INTERNATIONAL JOURNAL OF WILDLAND FIRE
Volume 30, Issue 5, Pages 365-377Publisher
CSIRO PUBLISHING
DOI: 10.1071/WF20162
Keywords
boreal forest; fire CCI; forest fire; MODIS EVI; post-fire vegetation recovery; SIF
Categories
Funding
- National Key Research and Development Program of China [2018YFE0207800]
- National Natural Science Foundation of China [41871103, 41771179]
Ask authors/readers for more resources
The study utilized SIF to estimate post-fire vegetation recovery, revealing that 20 years is insufficient for recovery with a significant increasing trend in SIF within burned areas during the first 6 to 10 years after wildfires. Additionally, differences in SIF values were found within and outside burned areas at different stages of vegetation recovery.
The estimation of post-fire vegetation recovery is essential for forest management and wildfire policy-making. In the last few decades, vegetation indices have been widely used to monitor post-fire vegetation recovery by comparison with the pre-fire state. In this study, vegetation recovery is estimated using Solar-Induced chlorophyll Fluorescence (SIF), which is a by-product of photosynthesis and can reflect the physiological characteristics of a plant. We found that 20 years is insufficient for vegetation recovery, as the SIF within burned areas exhibited a significant increasing trend, which was most notable within the first 6 to 10 years after a wildfire. When comparing the SIF within and outside burned areas, we found that, during the first 3 to 6 years, SIF values outside burned areas were larger than that within burned areas; however, after similar to 6 years, the SIF within the burned areas exceeded that outside burned areas owing to the different carbon sequestration intensities of different vegetation recovery stages. Field photos of recovering vegetation were then compared with the Enhanced Vegetation Index (EVI) trend within the burned area, and it was found that, although the EVI reached pre-fire levels or stabilised, vegetation recovery was continuing.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available