Research on Post-fire Restoration of Sable's Habitat Suitability and Landscape Pattern in the Northern Greater Hing'an Mountains
Habitat loss and fragmentation have been associated with the population decrease of endangered species. A catastrophic fire took place in the northern Greater Hing' an Mountains where the main habitat of Sables ( Maries zibellina) is located in China in 1987. That fire aggravated the loss and fragmentation of the forest landscape inevitably. Due to restricted distribution and low population density, sable has been listed as the national first grade protected species in China. The objective of this paper was to identify to what extent the habitat of sables was restored 13 years later after fire. Based on the behavior data and forest inventory data, suitability habitat maps in winter were derived and habitat structure was analyzed with selected landscape indices. The results showed that compared to the pre-fire situation, although forest cover had mostly restored in 2000, the area of suitable habitat reduced greatly, especially that of the moderately suitable habitat. Fragmentation was aggravated, with suitable patches more isolated. Patch shape became simpler, and the percentage of soft boundaries increased. The results above indicated that the suitable habitat has deteriorated, and much more time is needed for the restoration.
NETL
NSTL
万方数据
维普
