Application of remote sensing images to the investigations of thechanges of permafrost environment in burned forest regions, Da HingganLing, China

摘要

From the indications of aerial and satellite images, the authorsmade a field investigation on the typical burned forest area andestablished interpretation signs about the degree of burned forest,types of vegetation species, and vegetation recovery. The results are asfollows: 1. After the forest fire of May 6, 1987, the forest environmentof slightly and moderately burned areas has approximately recovered. 2.The recovering plants in burned areas in the 1960s, 1970s and 1900s aremainly Larix gmelinii and Pinus sylvestris mingled with broad-leavedforests. 3. The effects caused by the forest fire on the permafrostenvironment is obvious. There is a warming effect which affects theoccurrence of plant species and the vegetation growth period which canbe seen in TM remote sensing images. The warming effects decrease withdepth