陇东黄土高原冬小麦生态气候适生种植区划  

Division of Suitable Eco-climatic Planting Areas of Winter Wheat in Longdong Area

作　　者：王宁珍[1] 王润元[1] 薛景轩 黄斌 王颖 

机构地区：[1]中国气象局兰州干旱研究所,兰州730020 [2]甘肃省西峰农业气象试验站 [3]甘肃省合水县气象局

出　　处：《中国农业气象》2005年第4期256-258,262,共4页Chinese Journal of Agrometeorology

基　　金：国家自然科技基金(4025014)

摘　　要：利用陇东地区1972-2003年15县的冬小麦产量资料和气象资料,分析了陇东地区冬小麦全生育期气象要素分布特征,以及冬小麦产量和气象条件的关系,确定了小麦区划指标,将陇东地区冬小麦分为5个不同类型种植区,并提出充分利用气候资源、合理调整作物结构、发展经济的有效途径。Under the drip irrigation mulched with plastic film, the soil temperature and moisture on the rhizosphere, leaves temperature, air temperature and humidity of cotton （ C, ossypium hirsutum. L. ） field were observed and measured. The relationships of the cotton rhizosphere soil moisture to temperature, and cotton canopy temperature to air humidity, were analyzed based on these observations. It was found that the ratio of soil temperature of the cotton rhizosphere to the soil moisture （Ts/θ） was approximately linear function of the soil depth （Z）, and the temperature difference between cotton leaves and air （Tc-Ta） was linearly relational with vapor pressure deficit （VPD）. These results proved the facts that the mulched drip irrigation techniques could provide a favorable uptake conditions for cotton root systems and improve to the growth of cotton.

关 键 词：冬小麦 种植区划 陇东 

分 类 号：S512.11[农业科学—作物学]