北票市水资源时空分布及其脆弱性评价

The Temporal and Spatial Distribution of Water Resources and Its Vulnerability Assessment in Beipiao

为了解北票市水资源时空分布状况及承载能力水平,通过利用一元回归分析解析北票市水资源时间变化特征,Kriging插值法描述其空间分布特征,并结合压力、状态、响应概念框架对北票市2005~2015年水资源脆弱性进行综合评价。结果表明,1989~2016年间北票市水资源量呈线性减少趋势,其在空间上呈现自东南向西北减少的分布特征。综合评价显示,近10年来,北票市水资源脆弱性由较不脆弱演变至临界、较脆弱等级,水资源承载状况恶化。故而,加强区域水环境生态治理是极有必要的。

In order to understand the temporal and spatial distribution information of water resources and its bearing capacity in Beipiao, through utilization of one-dimensional regression to analyze the time variation characteristics of water resources in Beipiao. Kriging interpolation method was used to describe its spatial distribution characteristics, and combined with the pressure, state and response conceptual framework to comprehensively assessment of water resources vulnerability in Beipiao from 2005 to 2015. The results showed that the water resources in Beipiao showed a linear decreasing trend from 1989 to 2016, which showed a spatially decreasing distribution pattern from southeast to northwest. The comprehensive evaluation shows that in the past 10 years, the vulnerability of water resources in Beipiao has evolved from less fragile to a critical and more vulnerable grade, and the carrying status of water resources has deteriorated. Therefore, it is extremely necessary to strengthen the ecological governance of the regional water environment.