祁连山水源涵养功能的生态监测指标与评估指标

Ecological monitoring and evaluation indexes of water resource conservation function in Qilian Mountains

以祁连山水源涵养功能体为研究对象,基于森林生态水文学理论,充分利用祁连山森林生态站长期生态监测数据及其研究成果,在流域尺度上,围绕水源涵养功能从水文和生态两方面进行了监测指标选择。同时,对水源涵养功能各水文指标进行了评估。研究结果表明:祁连山水源涵养功能监测包括2大类别、13个一级监测指标和48个二级监测指标,水源涵养功能评估包括8个一级评估项目和22个二级评估项目,并对二级评估项目进行指标量化。然后,将祁连山排露沟流域量化的评估指标与祁连山寺大隆流域、天涝池流域的22年监测数据进行了比较探讨,进一步分析和验证了评估指标。本研究是跨尺度、多种指标综合研究祁连山水源涵养功能评估的初步偿试,为将来综合运用多源数据和定位监测、遥感解译和模型模拟等多种方法研究水源涵养功能机理提供基础数据和参考。

By taking the water conservation function system of Qilian Mountain as the research object, based on the theory of forest ecological hydrology, and making full use of long-term ecological monitoring data and research results collected by Qilian Mountains Forest Ecosystem Station, and two aspects of monitoring indexes on hydrological and ecological around function of water conservation on the catchment scale were selected, at the same time, the hydrological indexes of water conservation function were assessed. The results show that the monitoring fimction of water conservation in Qilian mountain includes 2 categories, 13 first-level monitoring indexes and 48 second-level indexes; The function of water conservation assessment included 8 first-level assessment projects and 22 second-level of project evaluation, and quantitative index of second-level assessment project. Then, the quantitative evaluation indexes in Pailugou basin of Qilian Mountains and 22 years monitoring data in Sidalong basin and Tianlanchi basin of Qilian Mountains were compared and discussed, and theirs assessment indexes had been analyzed and validated. This study is an initial attempt to evaluate water resource conservation function by the multi-scale and multi-index, in the hope of providing basic data and reference for the future multi- source data and monitoring, remote sensing and modeling methods to research function mechanism of water resource conservation.