甘肃旱作农业区发展节能日光温室蔬菜生产的可行性探讨

Study on feasibility of developing vegetable production in solar-greenhouse in the dryland agriculture region in Gansu province

从气候资源条件、关键技术、经济收益等方面 ,分析探讨了在甘肃旱作农业区发展节能日光温室蔬菜生产的可行性。结果表明 :在甘肃旱作农业区发展节能日光温室蔬菜生产 ,光温条件具备 ,经济上也具有可行性 ,惟一制约因素——水分可用温室集雨和滴灌节水相结合的方案来解决。进一步研究得出 ,在甘肃旱作农业区年降雨量 5 5 0 mm以上地区应用温室集雨可保证温室内种植蔬菜的水分供应 ,而年降雨量 5 5 0 m

Based on analyzing conditions of climatic resources, key techniques and economic income, of feasibility of developing solar greenhouse vegetable production in the dry farming region in Gansu Province was studied. The results showed that the conditions of temperature and light were possessed, developing solar greenhouse vegetable production in the dry farming region in Gansu, and the only restricting factor was water which could be solved by means of greenhouse catchment of rainfall and water saving drip irrigation. Further study showed that greenhouse catchment of rainfall could guarantee water supply for vegetables in solar greenhouse in the dry farming region with annual rainfall over 550 mm in Gansu Province. Otherwise it needed to increase the area of catchment of rainfall area.