【摘要】 渭河干流定西段受天然因素和人为因素干扰,不同程度上出现了河流水质恶化、形态结构破坏、水文条件变化以及生境退化等问题。在综合分析河流系统特征的基础上,结合渭河干流流域自然环境特征及河流生态环境现状,提出渭河干流定西段管理保护的措施建议。更多还原

【Abstract】 A series of consequences, such as poor water quality, damage of river regime, change of hydrological conditions and habitat degradation, have been generated in the Dingxi Section of Weihe mainstream, under the influence of natural conditions and disturbance of human activities. Mitigation measures are raised accordingly based on comprehensive analysis of features of river systems and taking the natural environment and current status of ecology and environment of the river basin into full consideration.更多还原