黄河三角洲：盐碱地长出“金疙瘩”

Core Insights - The article highlights the transformation of saline-alkali land in Dongying, Shandong Province, into productive agricultural areas, showcasing successful aquaculture and crop production initiatives [1][3][10] Group 1: Agricultural Production - The saline-alkali land in Dongying has been utilized to produce 3.7 billion high-quality seedlings and 30,000 tons of commercial shrimp annually [1] - The brand value of local products such as Yellow River crabs and Yellow River rice has significantly increased, reaching 3.193 billion yuan and 1.157 billion yuan respectively [1] Group 2: Soil Improvement Techniques - New soil improvement techniques have been implemented, including "dark pipe drainage" to effectively remove salt from the soil, reducing water usage from 200 cubic meters to 15 cubic meters per acre [3] - A green governance technology system for saline-alkali land has been established, enhancing efficiency by 70% in salt drainage and achieving over 30% savings in water and fertilizer [3] Group 3: Seed Industry Development - The establishment of the National Saline-Alkali Land Comprehensive Utilization Technology Innovation Center focuses on biological breeding and ecological utilization, involving 48 institutions and over 100 expert teams [5] - An integrated breeding innovation system has been developed, significantly shortening breeding cycles and increasing breeding speed by 2 to 4 times [5] Group 4: Modern Governance Models - The "grass-pasture-garden" model for modern governance of coastal saline-alkali land has shown significant results, improving soil quality and increasing organic matter by approximately 25% [8] - The "three-level utilization" model addresses varying degrees of salinity, promoting crop production and ecological restoration tailored to specific land conditions [10] Group 5: Collaborative Mechanisms - A multi-party cooperation mechanism has been formed involving government, research institutions, enterprises, and farmers to support the comprehensive utilization of saline-alkali land [10] - The government has developed policies and plans to support the transformation of saline-alkali land into productive agricultural areas, integrating it into broader agricultural planning [10]