摘要
冠层温度在定量诊断作物水分亏缺中得到了广泛的应用,1998年和1999年在新疆乌兰乌苏农业气象站试验田对覆膜棉花和玉米进行了研究。在此研究成果的基础上,提出了冠层温度最佳的测定时间,进行了用冠层温度定量诊断作物根系活动层的初步研究,结果表明可以利用CWSI与不同土层含水量的相关系数动态、准确地确定作物根系主要活动层的范围。
Diagnosis of water content deficit for crop according to canopy temperature has wide application. Researches on mulched cotton and corn were conducted in Wulanwusu Agricultural Experiment Station of Xinjiang Autonomous Region in 1998 - 1999. The optimal time for canopy temperature observation is put forward based on this experiment, and preliminary researches are conducted on quantitative diagnosis of crop root - zone according to canopy temperature. The results show that the root - zone range of crop can be precisely determined according to the correlation coefficient between CWSI and soil content.
出处
《中国农村水利水电》
北大核心
2003年第4期3-4,共2页
China Rural Water and Hydropower
