Detection of phonological transitions of spring maize in Northeast China during the last 20 years using daily NOAA/AVHRR NDVI temporal series data

Xuexia Zhang, Beijing Forestry University, School of Soil and Water conservation, Beijing, China; University of California Los Angeles, Department of Geography, Los Angeles, CA, United States and Yongkang Xue, University of California, Los Angeles (UCLA), Department of Geography, Los Angeles, United States