近日，蒙草生态参与完成的科研项目"黄土丘陵沟壑区'三北'工程建设理论与林草植被配置技术"获内蒙古科学技术进步 奖二等奖，该项目由内蒙古农业大学、水利部牧区水利科学研究所、内蒙古自治区林业科学研究院、内蒙古自治区林 业和草原工作总站等单位共同完成，为黄土丘陵沟壑区土壤干化、植被生存困难等生态难题的破解提供了新路径。 在"三北"工程攻坚战中，黄土丘陵沟壑区是一个难啃的"硬骨头"，它主要分布在"几字弯"片区，每年将大量泥沙流入黄 河，有"泥龙头"之称，是阻击水土流失的主战场之一。 这种地形往往林水矛盾突出、土壤干化严重，治理起来十分困难。 为了提高困难立地条件下适生草种、树种的存活率，研究团队还研发出生物菌剂、微生物肥料等新型材料，为当地植 被恢复提供了关键物质支撑，并形成衰退灌木防护林平茬复壮技术、低质低效防护林提质增效技术以及水土保持林营 造对位配置技术体系，解决了"该怎么种"的问题。 小流域林果水草田果复合经营模式 创建的黄土丘陵沟壑区林果草牧融合模式，已在鄂尔多斯和呼和浩特推广应用102.76万亩，为"三北"工程建设提供了重 要科技支撑。 怎么才能破解治理难题，保障治理成效长期、可持续？ 关键在于草种选择和 ...

Core Viewpoint - Inner Mongolia Alxa League has launched its autumn afforestation work, aiming to complete the task of planting 560,000 acres by the end of December 2025, highlighting the region's commitment to combating desertification and improving ecological conditions [1] Group 1: Afforestation Efforts - The afforestation initiative is part of a broader strategy that has seen over 10 million acres treated since the implementation of the "Three-North" project in 1978 [1] - The region's ecological efforts focus on using drought-resistant native species such as Haloxylon ammodendron, Caragana korshinskii, and Ziziphus jujuba, promoting a near-natural afforestation model [1] Group 2: Ecological Conditions - Alxa League is located in the westernmost part of Inner Mongolia, covering an area of 270,000 square kilometers, with an average annual precipitation of less than 200 millimeters and evaporation exceeding 3,000 millimeters [1] - The area is home to three major deserts: Badain Jaran, Tengger, and Ulan Buh, which together cover 94,700 square kilometers, accounting for 35.07% of Alxa League's land area and 83.04% of Inner Mongolia's total desert area [1] Group 3: Results of Efforts - The region has seen a dual increase in grassland vegetation coverage and forest coverage, alongside a dual decrease in desertified and sandy land areas, indicating the effectiveness of the ongoing ecological restoration efforts [1]