秘密花园

用心 环卫车巧念“节水经”_我的网站

一 |     清晨5点，滨江区西兴路还沉浸在微凉晨色中。    

    Zhou Jiang speaks at an event. Photo: Courtesy of Zhou Jiang
Zhou Jiang, a researcher at the Sichuan Academy of Social Sciences, has a favorite book:  White Deer Tableland or Bai Lu Yuan by renowned writer Chen Zhongshi.
As vice president of the Regional Science Association of China (RSAC), Zhou told the Global Times that a lifetime of reading has profoundly shaped the way he sees and understands the world. It ultimately led him to a career in research and academia, where he teaches and pursues scholarly work.
Since earning his PhD in economics in 2000, he has devoted himself to the study of regional science and economics, a field that demands a constant crossing of disciplinary boundaries, drawing on the fields of geography, sociology, history, and ecology among others.
"Reading has kept alive my sense of curiosity and taught me to ask questions with patience and persistence: Where do disparities in regional development come from? How do policies affect different groups in society? And how can a region pursue both efficiency and equity so that development is not merely effective, but also imbued with a greater sense of humanity and warmth?" Zhou noted. 
Founded in 1991, RSAC is a national academic society dedicated to advancing domestic and international academic exchange and cooperation, providing consulting services on spatial planning, urbanization, and regional development, and offering intellectual support for China's modernization drive.
The 57-year-old researcher noted that reading has empowered him in two distinct ways.
"The first is discernment. When confronted with a complex issue, I try not to settle for a simple conclusion. Instead, I make an effort to understand its broader context, how it has unfolded, and the perspectives of the different people involved," he said. 
"The second is a sense of inner steadiness. Setbacks are an inevitable part of both life and work. Good books remind us that hardship is never ours alone to bear; countless people before us have faced circumstances more difficult than our own, made difficult choices, and found the strength to carry on. Reading cannot solve every problem for us, but it can help us remain calm when challenges arise, giving us the clarity and resilience that allow us not to panic or give up too easily," he said. 
Historical depth

Each time Zhou returns to the White Deer Tableland, he finds something different in its pages. 
"When I first read it as a young person, I was drawn primarily to the characters and the twists and turns of their lives. Later, as I began researching regional economics, I found myself paying closer attention to the changes in the land, the countryside, families and social order presented in the story. Now, approaching 60, I have come to appreciate more deeply the choices the characters make, the constraints they face, and the quiet perseverance they show amid the sweeping currents of their times," he said. 
White Deer Tableland uses Bai Lu village in Northwest China's Shaanxi Province as a microcosm, tracing the feuds and intertwined fortunes of three generations of the Bai (literally meaning white) and Lu families. Through their stories, it captures more than half a century of sweeping historical change, from the final years of the Qing Dynasty (1644-1911) to the 1970s and 1980s. The novel won the Mao Dun Literature Prize, one of China's top literature awards, in 1997.
Zhou prefers literary works with historical depth and a keen eye for social change. 
Regional economics may appear to be concerned with the spatial distribution of industries, population and resources, but at its heart, it is about how people live on a particular piece of land, and why some places flourish while others decline, he noted. 
In this sense, literature and history are more than pastimes beyond professional research. They often help him understand the historical context, cultural traditions and social mentality that lie behind economic data, he said. 
When reading novels, Zhou said that he often pays close attention to the relationship between people and the places they inhabit: How the land shapes the local character, how transportation transforms a region, and how shifts in industry reshape families and villages. Such details may not offer a direct conclusion, but they broaden a researcher's perspective. They also serve as a reminder that research should look beyond growth rates and statistical indicators to consider the sense of fulfillment experienced by ordinary people and the dignity of human beings.
Understanding ourselves
Once, while tidying his study, he came across a book filled with notes he had scribbled in his early years. Among them was a question that particularly caught his attention: "In the face of sweeping changes in the times and profound social transformation, what can a person truly determine for himself?"
Looking at those words he had written in his youth was like coming face to face with the person he had been decades ago.
Reading is not simply the act of understanding a book; it is also a record of a person's own growth, he said. The same book can reveal something entirely different when read at different stages of life. 
When we are young, we turn to books in search of answers; but when we become seasoned, we read more to understand life, to understand others, and ultimately, to better understand ourselves, Zhou said. 
In this era of fragmented information, AI can help people access information quickly, organize materials, and gain a basic understanding of unfamiliar fields. Yet deep reading, Zhou said, allows people to see how a conclusion is reached — what evidence supports it, where its boundaries lie, and what alternative interpretations it may invite.
What truly shapes a person, after all, is not how much information they have browsed, but the words that have made them pause and reflect - and the words that have remained with them for many years, he added. 
。洒水车司机冯水良拧开阀门，细密水雾均匀覆在柏油路上，既湿润了空气，也压下了扬尘。和往常不同的是，这一车“解渴水”并非取自自来水管网，而是来自几百米外的建设河——经净化处理后，它成了环卫作业的“第二水源”。这是杭州推进环卫用水“换血”的日常缩影。今年以来，杭州持续调整环卫作业用水结构，用河道净化水、再生水替代自来水，把水资源节约集约利用落到每辆环卫车上。

二 | 市城管部门的最新数据显示：今年上半年，全市环卫作业总用水量达507万吨，其中河道取水160万吨、再生水取水70万吨，“第二水源”合计占比45.37%。“以前装一车水，用的都是自来水。去年12月滨江新增10个河道取水口后，我们的‘水缸’直接搬到了河边。”开了8年洒水车的冯水良说，现在出车前顺路就能完成补水，方便又省心。截至目前，全市已累计布设河道取水口104个、再生水取水栓23个，一张覆盖城区的环卫“第二水源”补给网正越织越密。有人疑惑：用河水、再生水洗路，会不会影响保洁质量？答案藏在精细化“分质供水”方案里：洒水车出水口径大、自带粗滤装置，日均耗水量高，优先取用净化河道水和再生水；高压洗扫车喷头精密，选用悬浮物更低的再生水，减少设备堵塞磨损；雾炮车对水质要求更高，仍采用自来水。

三 | 与此同时，养护人员会定期清洗更换取水滤网、疏通管路、检修高压喷头和水泵核心部件，让每一辆环卫车都“喝得顺、跑得稳”。节水更要算好经济账。经多轮实测，当取水半径控制在3公里以内时，综合用水成本明显低于自来水，也不会挤占正常保洁作业时间。

四 | 如今，各保洁单位都会提前摸排就近河道取水点和再生水桩位置，提前规划作业路线，尽量不让车辆空驶找水。“少跑冤枉路，多干实在活，成本降了，效率反而高了。”一名保洁负责人坦言。从“全靠自来水”到“第二水源挑大梁”，当越来越多环卫车用上“循环水”，杭城的水资源节约之路，也越走越宽。

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Published on:11:24:07