摘要
小杂粮是黄土高原传统的旱作作物种群。通过对主要小杂粮作物生理生态特性、生长发育与降水分布的时序关系、生产力稳定性等的分析研究,表明小杂粮作物或具有抗旱的生理特性,或具有避旱的生长习性,生长发育与黄土高原春旱严重,秋季雨热同季的气候条件耦合性较好,生产力稳定,具有较强的干旱适应性。为该区重视和发展小杂粮作物,建立合理的作物种植结构提供理论依据和科学指导。
The traditional minor crops are drought-resistant crops in Loess Plateau. The physiological and ecological characteristics, time-sequence relationship between growth and rainfall distribution and productivity stability of minor crops were analyzed. The results showed that minor crops have stronger drought adaptability. For their physiological drought-resistance, are strong or they can escape the drougt periods. So they can better balance the relation between growth and regional climate with serious drought. It is hoped to provide policy basis and scientific guidance for paying more attention to and developing minor crops production and establishing rational crops planting structures in the region.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2007年第8期111-115,共5页
Journal of Arid Land Resources and Environment
关键词
黄土高原
小杂粮作物
干旱
适应性
The Loess Plateau
minor crops
drought
adaptability
