多种措施应对寒潮，山东沂南全力保障蔬菜供应

Core Viewpoint - Shandong Province's Linyi City, specifically Yinan County, is actively implementing measures to ensure vegetable supply during cold weather, with a focus on protecting crops and maintaining market availability [1]. Group 1: Measures Taken - Yinan County has planted a total of 120,000 acres of facility vegetables to secure supply during winter [1]. - Farmers are utilizing thermal insulation materials in vegetable greenhouses to maintain warmth [3]. - Heating equipment is being checked and maintained in seedling greenhouses to ensure optimal growing conditions [5]. Group 2: Specific Techniques - Water heating air conditioning systems are being employed in seedling greenhouses for effective temperature control [6]. - Farmers are covering newly grafted cucumber seedlings with insulation film to protect them from cold [8]. - Workers are engaged in grafting cucumber seedlings within the seedling greenhouses to enhance crop yield [10]. Group 3: Market Activity - Farmers in Yinan County are actively selling lettuce, indicating a focus on market supply despite adverse weather conditions [11].