“…Successful local examples of wind erosion reduction include cross planting winter wheat to protect semiarid land in the USA (Bilbro, 1987), protecting Bao-Lan railroad in China by planting sand-fixing vegetation in checkerboard patterns (Liu, 2002;Maki, 2004), and fixing sand with scattered dry grasses in desertified areas. Examples of the latter are given by Onyewotu et al (2003), in Nigeria, where subsequently shelterbelts were introduced, and by Al-Amin et al (2006), in Sudan, where a grass was compared with scattered trees with sufficient near-surface biomass. This means that incomplete stubble left in the field also must have a notable reducing effect on wind erosion, in line with our own experiments where it assisted in reducing wind erosion where crop cultivation was continued (Zheng & Tuo, 2002).…”