title: [Land ecological safety in Poyang Lake Eco-economic Zone: an evaluation based on matter-element model].
abstract: Base on the 2001-2007 related statistical data, and by means of matter-element model, an evaluation was conducted on the land ecological safety in Poyang Lake Eco-economic Zone. The land safety in the Eco-economic Zone was relatively fine in 2001, decreased to critical level in 2002-2004, and degraded to unsafe in 2005. From 2006, the safety level returned to critical, indicating a better safety status. This study showed that matter-element model had the advantages of simple calculation, clear indication, and higher accuracy, being able to provide another approach for regional land ecological safety evaluation.
authors.affiliation: Landscape and Environment Ecology Research Center, Jiangxi Agricultural University, Nanchang 330045, China. jxauyd@163.com
authors.forename: Dun
authors.initials: D
authors.lastname: Yu
authors.forename: Wen-bo
authors.initials: WB
authors.lastname: Chen
mesh_terms: D000383:Agriculture / Q000379:methods*; D002681:China; D003247:Conservation of Natural Resources / Q000191:economics / Q000379:methods*; D004463:Ecology / Q000191:economics* / Q000379:methods; D017753:Ecosystem; D004784:Environmental Monitoring; D060106:Lakes; D008962:Models, Theoretical; D012449:Safety; D012959:Socioeconomic Factors; D014876:Water Pollution / Q000191:economics / Q000517:prevention & control*