Spatiotemporal variation of eco-environmental frangibility based on remote sensing and catastrophe theory:A case study of Kenli County in Yellow River Delta,China
Based on remote sensing and the nonlinear theories of entropy and catastrophe,the spatiotemporal variation of eco-environmental frangibility in Kenli County of Yellow River Delta was analyzed through the installation of sampling plots.The methods of analyzing and estimating eco-environmental frangibility were also established.The results indicated that in 1987-2005,the environment of Kenli County tended to deteriorating,and two catastrophes of environmental frangibility occurred,one in 1997,and the other in...