甘蔗糖业2025，Vol.54Issue(2)：11-21,11.DOI:10.3969/j.issn.1005-9695.2025.02.002
2 种作物降水适宜度评价模型在广西甘蔗的适用性比较
Comparison of the Applicability of Two Crop Precipitation Suitability Evaluation Models for Sugarcane in Guangxi
摘要
Abstract
The study aims to analyze and compare the applicability of two common crop precipitation suitability models for sugarcane in Guangxi.These two models are the model developed by Hou Yingyu et al.(Model I)and the model developed by Wei Ruijiang et al.(Model II).The goal is to determine the relatively better precipitation suitability model and to select the better input precipitation type and time scale by using different precipitation types and time scales as input parameters.Daily meteorological data from 1981 to 2023 from 91 national meteorological observation stations in Guangxi were used to calculate the precipitation suitability for sugarcane,and sugarcane observation data from agricultural meteorological observation stations in major production cities were used for validation.The appropriate model and precipitation type were selected to analyze the spatial and temporal distribution characteristics of sugarcane precipitation suitability in Guangxi.The results show that compared to inputting precipitation on 10-day and 30-day time scales,the average correlation coefficient between the suitability of Model II and stem elongation is 0.06 and 0.12 higher than that of Model I,respectively.Model I exhibits a jump phenomenon where the suitability drops to 0 when the crop water demand exceeds the upper or lower limits,making Model II relatively superior to Model I.For both models,the correlation of input precipitation types from high to low is effective precipitation＞observed precipitation＞utilizable precipitation.The correlation of input precipitation time scales for both models from high to low is 30-day＞10-day.The correlation between Model II and stem elongation is significant,and the differences are noticeable when used for spatial and temporal analysis of crop suitability,making it applicable for crop suitability and growth analysis.关键词
降水适宜度/模型/甘蔗/评价/比较Key words
Precipitation suitability/Model/Sugarcane/Evaluation/Comparison分类
农业科学引用本文复制引用
刘武,匡昭敏,张蕾,程俊淇,欧晔,赖嘉良..2 种作物降水适宜度评价模型在广西甘蔗的适用性比较[J].甘蔗糖业,2025,54(2):11-21,11.基金项目
中国气象局科技项目"揭榜挂帅"军令状(CMAJBGS202322) （CMAJBGS202322）
