灌溉排水学报2017，Vol.36Issue(8)：83-88,6.DOI:10.13522/j.cnki.ggps.2017.08.014
滇中地区作物生长期时空变化特征及影响因子分析
Spatio-temporal Variation of Crop Growth and Its Impacting Factors in Central Yunnan Province
摘要
Abstract
This paper analyzed the spatio-temporal variation of crop growth in central Yuannan Province under different climate changes based on the maximum and minimum temperature and other factors measured at 49 stations from 1964 to 2013 in this region,using the Mann-kendall rank test and the wave-let analysis method.The results showed that:① The mean annual growing-season-length (GSL) was 362.58 d,and the GSL,frost-free days and minimum temperature (Tmin) all significantly increased from 1964 to 2013,with the rate of GSL increasing by 0.371 d/10 a.In the meantime,the maximum temperature increased slightly,while the precipitation decreased.The GSL dropped in 1988,followed by a significant increase in 1999.There were a 9 a and a 25 a periods.②The GSL was higher in the central regions than at the east and the west,and it increased from the central south to the east and the west,especially in the northeast and northwest.③ There was a significant positive correlation between GSL and the frost-free day,as well as Tmin.The change in GSL was mostly affected by Tmin.关键词
作物生长期/时空变化/温度/滇中地区Key words
GSL/temporal and spatial variation/temperature/central area of Yunnan province分类
天文与地球科学引用本文复制引用
王杰,曹言,黄英,张雷,戚娜..滇中地区作物生长期时空变化特征及影响因子分析[J].灌溉排水学报,2017,36(8):83-88,6.基金项目
云南省社会发展科技计划项目(2012CA021) （2012CA021）
云南省科技计划项目(2015BB019) （2015BB019）
云南省省级分成水资源费项目(201203) （201203）
