The Spatiotemporal Distribution Characteristics of Rainfall During the Elongation Period of Sugarcane Stem Nodes in Chongzuo City
Rainfall is one of the key meteorological factors in the formation and improvement of sugarcane yield,which is an important growth period for sugarcane production.Most sugarcane cultivation areas in Chongzuo City mainly rely on rain fed cultivation.The recognition and judgment of the temporal and spatial characteristics of precipitation in Chongzuo City is of great significance for water-saving irrigation,efficient fertilization,yield prediction,disaster analysis,and defense prediction of sugarcane.The study of rainfall also provides guidance for the production management of sugar enterprises.The data basis of this study is the daily rainfall data during the elongation period of sugarcane stem nodes at 7 stations in Chongzuo City from 1971 to 2020.The analysis methods include trend analysis,anomaly analysis,Morlet wavelet,dbN wavelet,etc.The characteristics of long-term precipitation from 2021 to 2023 were analyzed.The interannual variation of rainfall during the elongation period of sugarcane in Chongzuo City is significant,showing an overall decreasing trend;Overall,it shows a decreasing trend.At the same time,the precipitation trends of stations located close to each other have certain similarities.Due to the different geographical orientations of the 7 stations in Chongzuo City,there are also certain differences in the precipitation characteristics presented the oscillation period of precipitation during the sugarcane stem elongation period gradually weakens from west to east,and the occurrence period in the south increases compared to the north.The overall spatial pattern of a single heavy rainfall process during the elongation period of sugarcane is greater in the east than in the west.
万方数据
维普
