热烈祝贺林火生态课题组魏普杰文章 《Vegetation-fire feedbacks increase subtropical wildfire risk in scrubland and reduce it in forests 》被《Journal of Environmental Management》接收

        近日，林火生态课题组魏普杰的论文《Vegetation-fire feedbacks increase subtropical wildfire risk in scrubland and reduce it in forests》 被环境科学类中科院一区Top期刊《Journal of Environmental Management》(IF = 8.7)接收。热烈祝贺魏普杰同学！

        Climate dictates wildfire activity around the world. But East and Southeast Asia are an apparent exception as fire-activity variation there is unrelated to climatic variables. In subtropical China, fire activity decreased by 80% between 2003 and 2020 amid increased fire risks globally. Here, we assessed the fire regime, vegetation structure, fuel flammability and their interactions across subtropical Hubei, China. We show that tree basal area (TBA) and fuel flammability explained 60% of fire-frequency variance. Fire frequency and fuel flammability, in turn, explained 90% of TBA variance. These results reveal a novel system of scrubland–forest stabilized by vegetation–fire feedbacks. Frequent fires promote the persistence of derelict scrubland through positive vegetation–fire feedbacks; in forest, vegetation–fire feedbacks are negative and suppress fire. Thus, we attribute the decrease in wildfire activity to reforestation programs that concurrently increase forest coverage and foster negative vegetation–fire feedbacks that suppress wildfire.