炎炎烈日下，沙丘起伏，机械轰鸣。7月18日，记者走进阿拉善盟阿拉善右旗巴丹吉林、腾格里两 大沙漠交汇处的九棵树治沙项目区，只见治沙工人把稻草铺设整齐后，手扶式沙障机快速在沙中压固成 一圈圈草方格。登高远眺，连绵起伏的沙丘上铺设好的草方格甚是壮观，整齐划一、纵横交错，犹如固 沙"金甲"将一个个沙丘分割锁定，将原本流动的沙丘牢牢"缚住"。 目前，该盟以巴丹吉林、腾格里两大沙漠为治理重点，在额济纳旗与甘肃省金塔县交界的巴丹吉林 沙漠大风口、在巴丹吉林沙漠南缘阿拉善右旗雅布赖—甘肃省民勤风口、在巴丹吉林沙漠西缘阿拉善右 旗与甘肃省张掖市、金昌市交界区域的风沙口等区域深化合作，齐抓共管，推动区域联动，形成协同治 沙、管沙、用沙的工作新局面。2025年，该盟围绕蒙甘边界区域开展联防联治，计划实施联防联治项目 7个，建设任务118.87万亩。如今在"河塔"片区联防联治防沙治沙建设正在如火如荼推进。 在扎实推进河西走廊—塔克拉玛干沙漠边缘阻击战中，该盟深入贯彻落实国家以工代赈工作指南， 推广以工代赈模式，准确把握政策要求，明确劳务报酬占比不低于项目总投资的10%，通过实施"嘎查 村+农牧民""合作社+农牧民"等组织模式，吸纳 ...

Core Viewpoint - The "Three North" project is a significant national strategy aimed at combating desertification and improving ecological conditions in northern China, with a focus on high-quality development and integrated management of natural resources [1][4]. Group 1: Project Overview - The "Three North" project, initiated in 1978, targets areas severely affected by desertification, with a total planned area of 4.069 million square kilometers across 13 provinces and regions [2][3]. - The project aims to increase forest coverage from 5.05% in 1978 to 14.95% by 2050, while effectively controlling sand hazards and soil erosion [2]. Group 2: Phased Development - The project has been implemented in phases, with the first phase (1978-1985) focusing on agricultural ecological barriers and achieving afforestation of 5.35 million hectares [3]. - Subsequent phases have progressively expanded the scope and objectives, culminating in the completion of 31.74 million hectares of afforestation by 2020, raising forest coverage to 13.84% [3]. Group 3: Current Phase and Goals - The current sixth phase (2021-2030) emphasizes consolidating and expanding achievements in sand control, with a focus on integrated protection of mountains, rivers, forests, fields, lakes, grasslands, and deserts [4][5]. - Key battles include the Yellow River "bending" campaign and the eradication of sand hazards in specific regions, supported by a coordinated governance mechanism [4][5]. Group 4: Technological Advancements - The project has seen a shift towards mechanized sand control, with nearly 50% of operations now utilizing advanced machinery, significantly improving efficiency and reducing costs [6][8]. - Innovations in technology, such as the "Linji Cloud" system for equipment monitoring, have enhanced operational management and effectiveness [7]. Group 5: Economic Integration - The project has successfully integrated ecological restoration with economic development, promoting sustainable agricultural practices and the cultivation of drought-resistant crops [11][12]. - For instance, the development of the goji berry industry in Ningxia has created a complete industrial chain, contributing to a total output value of 29 billion yuan [14]. Group 6: Regional Practices - Inner Mongolia has implemented various innovative models for sand control, achieving significant ecological improvements and economic benefits through community involvement and technological integration [17][21]. - The region has seen a transformation from "sand encroachment" to "green recovery," with substantial increases in vegetation cover and economic output from ecological industries [19][20].