Dust emission from wind erosion is a widespread phenomenon in arid and semi‐arid areas having considerable implications for ecosystems and human well‐being. However, few studies have examined the efficiency of biochar amended to soil on wind erosion control. Aimed at studying the effect of biochar on resistance of soils against wind erosion, a wind tunnel experiment was conducted. We tested (a) soils amended with hard waste walnut wood biochar and soft maize cob biochar, and (b) soils amended with powdery waste wood and powdery maize cob, and compared them with (c) non‐treated soil, in their susceptibility to wind erosion and also the additional effect of various patterns of vegetation cover. Amending soil with biochar and powdery material did significantly increase their resilience to wind erosion because of increased soil aggregation. In comparison with the non‐treated control, the mass flux of un‐vegetated soil reduced from 4.42 to 1.86 g m⁻² s⁻¹ for the waste walnut wood biochar, from 4.28 to 1.50 g m⁻² s⁻¹ for maize cob biochar, from 4.11 to 1.44 g m⁻² s⁻¹ for powdery maize cob and from 3.97 to 1.14 g m⁻² s⁻¹ for powdery waste walnut wood. When combining amendments with vegetation, there was still a substantial improvement, though the soil treatments responded differently in terms of soil loss to different vegetation patterns. A single row vegetation pattern had the highest mass flux, while a zigzag vegetation pattern had the lowest. In conclusion, waste wood or maize cobs, whether applied as biochar or as powdery material, are able to fix soil and reduce wind erosion.

中文翻译：

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半干旱地区植被格局，生物炭和粉状土壤改良剂对风蚀土壤流失的影响

风蚀产生的粉尘排放在干旱和半干旱地区是一种普遍现象，对生态系统和人类福祉具有重要影响。但是，很少有研究检查过将生物炭改良到土壤上以控制风蚀的效率。为了研究生物炭对土壤抗风蚀的影响，进行了风洞试验。我们测试了（a）用硬废核桃木生物炭和软玉米芯生物炭修饰的土壤，以及（b）用粉状废木和粉状玉米芯修饰的土壤，并将其与（c）未经处理的土壤的易感性进行了比较。风蚀以及各种植被覆盖的附加影响。用生物炭和粉状物质改良土壤确实会增加土壤聚集性，从而显着提高其抗风蚀能力。^-2 s ^ ^-1的废胡桃木生物炭，从4.28至1.50克^-2小号^-1玉米芯生物炭，从4.11至1.44克^-2小号^-1粉状玉米穗轴和从3.97至1.14克^-2小号^-1（用于粉状废胡桃木）。当将修正案与植被相结合时，尽管土壤处理对不同植被类型的土壤流失反应不同，但仍然有实质性的改善。单行植被模式具有最高的质量通量，而之字形植被模式具有最低的质量通量。总之，废木材或玉米芯，无论是用作生物炭还是粉状材料，都能够固定土壤并减少风蚀。