海河流域生态功能区划

从海河流域自身的特征出发,运用RS、GIS技术,采用定性和定量分析相结合的方法,对海河流域生态功能区进行划分.结果表明:海河流域可划分为5个生态区、24个生态亚区和114个生态功能区;以流域尺度上占主导地位的4项生态功能(水源涵养、水土保持、防风固沙和生物多样性保护)为依据,确定了对海河流域具有重要意义的11个重要生态功能区域.该区划结果明确了对海河流域生态安全具有重要意义的区域,可用于指导海河流域自然资源的有序开发利用和产业的合理布局,为海河流域生态环境保护提供了科学依据,对维护海河流域生态安全具有重要意义.

Ecological function regionalization of Haihe River basin.

Aiming at the features of Haihe River basin, and by using RS and GIS technologies in combining with qualitative and quantitative analyses, a regionalization was conducted on the ecological function of the basin. The Haihe River basin could be divided into 5 ecoregions, 24 sub-ecoregions, and 114 eco-functional zones. Furthermore, 11 critical eco-functional zones were identified, according to the dominant functions (water conservation, soil conservation, wind prevention and sand fixation, and biodiversity protection) at basin scale. This regionalization made clear the regions important for the ecological security of Haihe River basin, which could guide the orderly exploitation and utilization of natural resources and the rational distribution of industries, offer scientific basis for the ecological environment protection, and maintain the ecological security of the basin.