目前主流方案 Desertification Control Practices
生物措施 Biological Technolgies + 工程措施 Engineering Technologies
生物措施 Biological Technologies
通过播种一些耐干旱的沙生植物，改善沙漠化土地，控制和固定流沙
Through planting drought-enduring plants, it will gradually restore the degraded land, and fix the shifting sand at the same time.
工程措施 Engineering Technologies
利用物理原理，建设工程以增加风沙流的运动阻力，促使沙粒沉积。常见的有设置高立式沙障、栅栏、挡沙墙等
Physics-based constructions help to slow down the sand flow, and thus induce the accumulation of sands and soil. There are some commonly used ones such as straw grids/sand barrier, fences, and sand walls.
生物措施
当前主要以乔灌木的栽植为主，受水分条件限制
Biological Technologies
The current strategy predominantly relies on tree planting, yet faces challenges due to water scarcity.
工程措施
当前主要是草方格，材料为水稻和小麦的秸秆，人工扎制为主，机械扎制为辅
Engineering Technolgies
The prevailing approach employs manually constructed straw grids as sand barriers utilizing crop residues, some consctructed by machine to enhance efficiency.
新科技应用
Application of New Technologies
治沙机械化
The use of mechanical devices in combatting desertification
“三北”工程机械治沙造林比例已接近50%，各类机械固沙造林累计节约资金数百亿元，减少风沙移动量1000多亿立方米
In 'Three-North' region (westnorthern parts of China), it's almost 50% among all the sand control and tree planting works that machines are taking over. These machines actually saved us several tens of billions RMB in afforeatation work, and reduced the amount of wind-blown sand movement by more than 100 billion cubic meters.
-植树机器人
Tree-planting Robot
-沙障铺设机
Sand Barrier Laying Machine
-飞播无人机
Aerial Seeding Drone
-数字指挥车
Digital Command Vehicle
-自走式平茬机
Self-propelled stem cutting Machine
-螺旋钻孔机
Spiral Drilling Machine
...
“适沙适机、多机联合”
"Proper use of machine in sand control, multiple machines combined"
内容来源 Source：智能助力“三北”治沙
新治沙模式-光伏治沙
New Sand Control Model - Photovoltaic Programs
发展条件
Timing for Development
- 国家战略与政策支持
- 地域广大的荒漠化土地
- 成熟的光伏产业
- 完整的电力运输网络
- National strategies and policy endorsment
- Vast desertified land
- Developed photovoltaic industry
- Complete power transmission network
治沙机制
- 遮阴与集雨：降低地表温度，提高土壤湿度（光伏板下沿土壤含水率增加30%~60%）。
- 阻风固沙：光伏阵列降低风速（平均减速33.24%），减少沙粒迁移。
- 微气候调节：减少温差、抑制沙尘暴动力源。
How does it help in sand control?
- Shading and Rainfall Collection: Reduces surface temperature and enhances soil moisture (soil moisture content under photovoltaic panels increases by 30%~60%).
- Wind Resistance and Sand Fixation: Photovoltaic arrays reduce wind speed (average of 33.24% less) and minimize sand particle migration.
- Microclimate Regulation: Moderates temperature and decreases the temperature fluctuations, and thus suppresses the dynamic sources of sandstorms.
