□ 本报记者姚政宇 12月17日，常州市天宁区郑陆镇黄天荡螃蟹核心养殖区，数万块单晶硅光伏板在水面整齐铺展，阳光透 过板间空隙洒落，在粼粼波光中织就出一片壮观的"光伏森林"。此时，养殖户张国兴和几名工作人员正 蹲在塘边忙着捕蟹。 "这最后一网收尾，今年的养殖算是圆满了！"望着鲜活肥美的螃蟹，张国兴脸上的笑意藏也藏不 住，"我的400多亩蟹塘，每亩产量稳稳超过200斤，而且螃蟹肉质紧实、膏黄饱满，平均售价每斤70元 左右。" 谁能想到，这片"板上发电、板下养蟹"的生态宝地，一度曾是当地的"心病"。 一直以来，清水蟹养殖都是黄天荡的特色产业，然而过去这里遍布零散的小产权蟹塘，大多只有2—10 亩，不仅养殖规模上不去，还因为缺乏统一管理，养殖废水含磷含氮量居高不下，乱排乱放现象屡见不 鲜。浑浊的塘水破坏了周边生态，还让螃蟹品质忽高忽低，养殖户们常常面临"丰年不丰收"的窘境。 从传统散养到"光渔能旅"融合，郑陆镇的"渔光一体"模式，既鼓起了农户腰包，又守护了生态底色，为 地方绿色发展筑牢了能源根基，更为乡村振兴注入了强劲动能。 "我们将光伏发电与现代生态高效渔业深度绑定，同步推进'三池两坝'水域改造，实现了'一地两用 ...

Core Viewpoint - The article discusses the transformation of Dong Yuhui's live streaming approach from a knowledge-based model to a more price-focused strategy, highlighting the challenges faced in maintaining audience engagement and knowledge retention in the competitive live commerce landscape [5][9][15]. Group 1: Live Streaming Strategy - Dong Yuhui engaged in a live negotiation with a brand representative to lower installation fees for a television, showcasing a shift towards a more aggressive sales approach [3][5]. - The incident was widely shared on social media, indicating a strong public interest in this new negotiation style, contrasting with his previous "cultural" approach to selling [5][13]. - The shift in strategy reflects a broader trend in live commerce where price competitiveness is becoming increasingly important for attracting and retaining viewers [13][15]. Group 2: Challenges of Knowledge-Based Selling - Knowledge-based selling, while initially successful, has proven difficult to sustain due to the high demands on the host's expertise and the rapid consumption of their knowledge base [7][9]. - Dong Yuhui's previous success was built on delivering high-quality content, but the depletion of his knowledge reserves has led to a need for a strategic pivot [9][11]. - The article notes that many knowledge-based creators face a similar challenge of maintaining content quality amidst intense market competition [11][13]. Group 3: Future Directions - The future strategy for Dong Yuhui's live streaming may involve a combination of knowledge-based content to attract viewers and price-focused selling to drive conversions [15]. - The article suggests that as long as Dong Yuhui can provide competitive pricing, he can continue to leverage his existing fan base for financial success [15]. - The overall trend in live commerce indicates a return to fundamental sales tactics, emphasizing the importance of delivering the lowest prices to consumers [13][15].