近20年河湟谷地粮食作物种植结构对气候变化的响应  

The response of grain crops in Hehuang Valley to the climate change nearly 20 years

作　　者：陈有禄 周强[1] 陈琼[1] 毛旭峰 刘峰贵[1] CHEN You-lu;ZHOU Qiang;CHEN Qiong;MAO Xu-feng;LIU Feng-gui(School of Life and Geographic Science,Qinghai Normal University,Xining,Qinghai 810008,China)

机构地区：[1]青海师范大学生命与地理科学学院,青海西宁810008

出　　处：《干旱地区农业研究》2018年第5期223-229,241,共8页Agricultural Research in the Arid Areas

基　　金：国家自然科学基金(41371120;41271123;41261010);中国科学院战略性先导科技专项(XDB03030500)

摘　　要：近百年来北半球的显著增温,已经对农业生产的产量、熟制和种植结构等产生深刻影响。本研究通过河湟谷地农户对气候变化的感知和主要粮食作物种植结构面积的调查,并运用快速聚类方法进行分析表明:近20年河湟谷地主要粮食作物播种面积比例结构变化显著,薯类种植面积大范围增加,小麦种植面积快速下降,其种植范围在地域空间上向东退缩,玉米播种面积增加显著,并向西部和高海拔地区扩展。河湟谷地主要粮食作物种植结构由小麦-薯类作物,逐渐向玉米-薯类-小麦等多样化、喜温作物方向发展。In the past 100 years,the significant temperature rising in the Northern Hemisphere had profoundly influenced the yield,maturity and planting structure of agricultural products.Referring to the climate changes perceived by farmers in Yellow River-Huangshui River Valley and carrying out survey about the planting area of major crops in the local area,corresponding analysis by adopting the Fast Clustering Method was made.The results showed that:in the past 20 years,the proportional structure of the planting area of major crops in Yellow River-Huangshui River Valley changed significantly.The planting area of tubers increased and the planting area of wheat decreased rapidly.Moreover,it was shrinking to the East geographically.The planting area of corn increased significantly and it was expanding to the West and high-altitude regions.To conclude,the planting structure of major crops in Yellow River-Huangshui River Valley was transformed from wheat-tubers to diversified,thermophilic crops as corn-tubers-wheat and so on.

关 键 词：河湟谷地 气候变化 粮食作物 种植结构 

分 类 号：S162.3[农业科学—农业气象学]