Some preliminary results on pilot study of global change in China

On the basis of existing data and research results the changes of life supporting environment in China in the his-tory are briefly described. The differences between regional climate variations and climate jump are the very impor-tant features and phenomena in estimating the trend of environmental evolution in the future. Finally, it is pointed out that sensitive zone is an ideal place to study global change. Many evidences show that the response of environmental elements in the sensitive zones to global change events is very obvious, so that much attention should be paid to the study of sensitive zone.