"挺壮观，好像水被煮开了一样！"顺义区水务局水利工程科负责人徐震告诉记者，箭杆河源头位于泉水 溢出带，周边泉眼不计其数，然而，从上世纪九十年代开始，由于过度开采地下水、天气干旱等原因导 致河道断流、泉眼干涸。"这次箭杆河的泉眼复涌，滋养了周边植被及微生物，增强了河道生态基流， 提升了水体自净能力与生态活力，是顺义水生态环境向好的见证。"徐震说。 箭杆河发源于北小营镇东府村村北，流经北小营、南彩、李遂等镇后汇入潮白河，是潮白河支流，全长 27.5公里，流域面积236平方公里。"往年这个季节这里不会有这么多水，现在你看这河道里的一小块沙 滩，都是泉水涌出来冲成的。"一名路过的村民表示。 "箭杆河泉水复涌，是多种因素共同作用的结果。"白国营是北京市水文总站地下水监测评价科教授级高 级工程师，恰巧又在顺义区北小营镇长大。在他的记忆中，大概上世纪八十年代，村子周围的河常年不 断流，河边稻田泉眼群总是向上冒水。 "南水进京以后，北京统筹多种水源向潮白河生态补水，让潮白河北京段实现了全线有水。"白国营分 析，"同时，唐指山水库作为潮白河以东地区生态补水的源头，也通过中干渠为下游补水，促进了顺义 地下水位的回升，为泉水复涌提 ...

Group 1 - The discovery of 16 national second-class protected gray cranes at Tangzhishan Reservoir marks the first large-scale gathering of this species, indicating a significant improvement in the ecological environment of the reservoir area [1] - Gray cranes, as typical wading birds, have high requirements for habitat water quality, vegetation, and food resources, serving as "natural detectors" of ecological health [1] - The presence of gray cranes, along with other species such as black storks, swans, and egrets, highlights the transformation of the reservoir from a single water conservancy facility to a composite ecological habitat [1] Group 2 - The continuous ecological water replenishment from Miyun Reservoir to Tangzhishan Reservoir over the past five years has contributed to the improvement of water quality and the richness of aquatic life and vegetation [1] - The ongoing efforts by the water management department in Shunyi District aim to maintain ecological replenishment and reservoir management, fostering a harmonious coexistence between humans and nature [2] - The transformation of Tangzhishan Reservoir reflects the broader trend of improving water ecological environments in Beijing [2]

Core Insights - The province has achieved significant improvements in water ecological environment, with surface water quality reaching 90.0%, an increase of 4.7 percentage points year-on-year, and the national important water function area quality compliance rate at 90.3%, up by 6.5 percentage points [1] - The province emphasizes the implementation of the river and lake chief system to address key issues and improve water quality, with over 1.8 million river chiefs conducting 680,000 inspections and resolving over 44,000 water-related issues last year [1] Group 1 - The province's river and lake health evaluation shows that 84.4% of rivers and lakes are in a healthy state [1] - The province's river system faces challenges such as complex historical issues, extreme weather events, and inadequate pollution control, which affect water environment stability and ecological safety [1] Group 2 - The provincial river chief office has outlined key tasks for this year, focusing on clearing obstacles to flood discharge, ensuring water safety, and addressing pollution sources [2] - The province plans to integrate the protection and management of mountains, waters, forests, fields, lakes, grasslands, and sands, and will promote comprehensive management of 600,000 acres of small watersheds [2]