Abstract:
Based on the data of forest fires and daily meteorological statistics during 2010—2017 in Zhejiang province, choosing 1 263 forest fire events, and to propose analysis-by-synthesis approach for study on the temporal and spatial pattern of the forest fires and relationship between each meteorological element with forest fire events, the results show that in terms of time, forest fires mainly occurred in Zhejiang province from January to April, and the frequency and area of fire showed an oscillating downward trend. Among them, forest fires occurred most frequently in 2011, 433 times, with a total fire area of 4 708 hm
2. The fires that occurred in Zhejiang province were dominated by larger fires. The main causes of forest fire were farming burning (457 times) and sacrificial burning(502 times). On the spatial distribution, occurrence of forest fire appears most frequently in Wenzhou, Lishui and Taizhou. The occurrence of forest fires is inversely correlated with daily precipitation and relative humidity, and positively correlated with temperature, wind speed and the number of consecutive precipitation-free-day under the condition of light drought. Further analysis shows that the number of consecutive precipitation-free-day contributes most to the index of forest fire danger during forest fire events in Zhejiang province.