黄土高原地区农业可持续发展的用水模式探讨

Water-use Model for Agricultural Sustainable Development in the Loess Plateau

黄土高原大部分地区处于半干旱地带,属于生态环境脆弱区。由于受水资源短缺的困扰,加之落后的粗放型生产方式得不到根本的改变,使该区农业发展严重受阻。从该区农业发展现状出发,结合国内外半干旱地区农业发展过程中的成功经验,针对黄土高原地区的农业水环境,提出了一种适合该区农业可持续发展的用水模式即黄土高原地区农业可持续发展的高效用水模式,并对其模式的可行性从水量因子、作物因子和人为因子等方面进行较为深刻的论证。

Most part of the loess plateau locates in the semiarid area and attributes to the fragile ecosystem. Lack of water and the old traditional agriculture pattern have hindered the agricultural development in this area. This paper, based on the present conditions of this areas and combining the successful agricultural experiences at home or outside in the semiarid area, has put forward an efficient water-use model that be suitable to the sustainable development in loess plateau; and has profoundly demonstrated the model＇s feasibility from three factors, they are water factor, crop factor and human factor.