摘要
应用1998—2007年秦安县花椒树物候、产量资料及1961—2007年气象资料,运用统计学方法计算分析,得出影响秦安花椒生长的主要气象因子:冬季平均最低气温,开花盛期的气温日较差、降水、日照时数,落花期和果实膨大期的平均最低气温,成熟期前期的极端最高气温、降水量,成熟期后期的日平均最高气温及日平均气温。花椒主要灾害是冻害和干旱。2000年以来初春冻害和7月干旱频率增多,花椒种植风险及不确定因素增多,应加强品种培育、土壤条件、栽培管理措施。
Based on the data of Chinese Prickly Ash phenological observation and the yield during 1998 -2007 and meteorological data during 1961 -2007 ,the main influenees of meteorological conditions on Chinese Prickly Ash growth were analyzed and ealeulated with statistieal method. The results indicated that the main meteorological factors about Chinese Prickly Ash in Qing' an county were as fol- lows: the lowest temperature in winter, and temperature daily range, precipitation, sunshine hours during the flail flowering period, the lowest temperature in the season of flower dropping and fruit growing, and the extremely highest temperature and precipitation in July; the highest temperature and average temperature in Augest. The freezing injury in early spring and drought in July are the main meteorological hazards to Chinese Prickly Ash, and their elimatie frequencies were increasing from 2000, this would bring more risk and uncertain faetors to Chinese Priekly Ash growth, so the variety cultivation, the soil condition, the euhivation management measure should be enhanced.
出处
《干旱气象》
2009年第1期52-56,共5页
Journal of Arid Meteorology
关键词
黄土高原
花椒生长
气象条件
chinese loess plateau
Chinese Prickly Ash
meteorological condition