基于DSR模型的淮河流域生态安全评价研究

淮河流域六安段饮用水源污染隐患突出,生态功能下降,季节性污染严重,城区水域景观功能弱化。基于DSR模型,根据研究区域的实际情况,选取淮河流域(六安段)的生态安全评价指标,建立生态安全评价模型,对2005年至2010年淮河流域六安段的生态安全变化进行研究。结果表明:2005年至2010年,淮河流域六安段生态安全状况正在不断改善,生态安全建设取得了阶段性的成果,但是生态安全建设的任务依然艰巨,其仍然是社会发展和经济建设中的重要战略,人类不仅要合理地利用自然资源,同时也要采取措施,减轻和解除生态环境的威胁,从而使生态系统能够保持健康和完整。

An Ecological Security Evaluation of Huaihe River Based on DSR

In the Huaihe River(Lu’an section),pollution hazard of drinking water sources stands out,the ecological function is falling,seasonal pollution is serious,and the landscape function of urban water area is weakening.Based on the DSR model,combined with the actual situation of the study area,the study formulates an ecological security evaluation model with the ecological security evaluation index of Huaihe River(Lu’an section),based on which the ecological security changes of Huaihe River(Lu’an section) are analyzed.The results show that ecological security situation was improving in Huaihe River(Lu’an section) from 2005 to 2010,but the task of ecological security construction is still arduous.It is claimed that human beings should not only make use of natural resources reasonably,but also should take measures to mitigate and remove the threat of ecological environment deterioration,so as to keep the ecological system healthy and complete.