Research Progress of Land Ecological Security Evaluation in China

Land ecological security evaluation is not only the core and foundation of land resources’ sustainable utilization, but also the key reference of land planning, management and protection of decision-making. Research on land ecological security evaluation has become a hot field in the land ecological security problems since the late 1990s. Based on lots of references after comprehensive analysis, the study progress and achievement of land ecological security evaluation are discussed in 3 aspects which are evaluation scale, evaluation index and evaluation methods in domestic country, indicating the following main problems: a) The spatial scale evaluation is not deep and wide, and the time scale evaluation most for static evaluation. b) Construction of index system has strong subjectivity c) Innovation and the comparison is lacked between the evaluation methods. Finally, this paper put forward that dynamic evaluation, objective evaluation indexes, integrated evaluation methods will be the future trends in the field of land eco-security evaluation.