Ecological Vulnerability Assessment Integrating the Spatial Analysis Technology with Algorithms: A Case of the Wood-Grass Ecotone of Northeast China

Table 4

Variation matrix of the ecological vulnerability between 1990 and 2005 (km²).

Ecological vulnerability	Slight	Light	Medium	Heavy
Slight	0	1634	0	0
Light	0	117882	163287	17442
Medium	0	32411	150476	39531
Heavy	0	0	530	883