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一、经营目标防风固沙林生态系统是由防风固沙林及其沙地环境构成的,以防御风沙危害为主要功能的特殊生态系统。通过建立防风固沙林,增加了地面粗糙度,减小了风速,从而减小了风沙流的携沙量,降低了输沙率,达到防风固沙的目的。并且由于林木的滤沙作用,气流含沙量减小,从而减小了气流对土壤的侵蚀。防风固沙林建立后,会对局部的气象因子发生影响,可降低风速,提高空气湿度,缓和空气温度和地温。并能加强沙地土壤成土过程,使土壤肥力有所提高。另外,还可减小或控制沙面的流动性,改善生态环境,使沙地植被向种类繁多,结构复杂且稳定,功能齐全的良性方向发展。二、经营技术体系
First, the business objectives Windbreak sand forest ecosystem is composed of windbreak sand and its sandy environment, to prevent the harm of wind and sand as the main function of the special ecological system. Through the establishment of windbreak and sand fixation forest, the surface roughness is increased and the wind speed is reduced, thus reducing the sediment carrying capacity and reducing the sand transport rate so as to achieve the purpose of windbreak and sand fixation. And due to the sand filtration effect of the forest, the sediment concentration in the air stream is reduced, thereby reducing the erosion of the soil by the air stream. After the establishment of windbreak and sand fixation, it will affect the local meteorological factors, which can reduce the wind speed, increase the air humidity and ease the air temperature and ground temperature. And can strengthen the soil formation process of sandy soil, so that soil fertility has increased. In addition, it can also reduce or control the flow of sand surface, improve the ecological environment, so that sandy vegetation to a wide range of complex, structural and stable, fully functional and benign direction. Second, the business technology system