摘要
为较全面地对滦河流域生态健康的发展趋势进行评价,建立了滦河流域PSR(压力-状态-响应)模型,并对滦河流域3个年代(分别以1985,1995年和2005年为代表年份)的流域生态状况进行健康评价。在预测流域2015,2025年土地利用图以及各评价指标的基础上,对流域2015年以及2025年的生态健康进行了预警分析。结果表明:20世纪80年代至21世纪00年代,滦河流域的生态健康呈现持续下降的趋势,生态健康状态由健康下降至亚健康,但21世纪10年代以后流域生态健康将逐渐转好,由亚健康恢复至健康状态。
In order to conduct an overall assessment for the development tendency of health ecosystem of Luanhe River Basin, the PSR model is established and the health conditions of ecosystem of the basin in three eras from 1980s to 2000s （the representative years of 1985, 1995 and 2005） are assessed. On the basis of prediction on land utilization and various assessment indexes in 2015 and 2025, the pre-alarm analysis on ecological health of the basin in 2015 and 2025 is conducted. The results show that, from 1980s to 2000s, the ecological health of Luanhe River Basin presents a worsening trend from health to sub-health, but after 2010s, it has gradually restored to health.
出处
《人民长江》
北大核心
2014年第14期31-35,共5页
Yangtze River
基金
国家科技支撑计划项目(2012BAB03B00)
水利部公益性项目(201101017)
关键词
PSR模型
流域生态健康
景观格局
滦河流域
PSR model
ecological health of basin
landscape pattern
Luanhe River Basin
