辽河保护区水生态功能分区研究

Research of the freshwater ecosystem function management in Liao River Reserve

流域水生态功能区是管理流域水生态系统的基本单元,其特点是统筹陆地和河流生态系统,更好、更全面反应流域水生态系统的整体特征。通过对流域内重要生境的识别,可以为区域内生物保护目标、生态安全目标、流域管理等方案的制定和实施提供重要的科学依据。该文以辽河保护区为例,从分区理论、划分方法、指标体系建立和划分结果四个方面详细介绍了分区过程,最终以保护区内主要自然影响和人类干扰作为主要分区指标,将辽河保护区划分为8个水生态功能三级区,并总结了各功能区的地貌、河段特征和土地利用特征等。研究结果将有助于对辽河保护区的内生态环境状况进行修复与改良。

Freshwater ecosystem function management is the basic unit to manage the ecosystems, which is characterized by coordinating land and river ecosystems, to reflect the overall water freshwater ecosystem characteristics better and more comprehensively. Through the identification of critical habitats, we can provide important scientific bases for the biological conservation, ecological security objectives, watershed management, program development and implementation of the area. In this paper, Liao River Reserve was taken as an example, and the partitioning process was introduced from the partition theory, classification method, index system and classification results. Ultimately, by taking the major natural effects and human disturbances as indexes, the Liao River Reserve was classified into eight water features level Ⅲregions. The landscape, river characteristics and land use features of functional areas were summarized. The results are useful for repairing and improving the environmental situation of Liao River Reserve.