Abstract:

Based on the data of Chinese PricklyAsh phenological observation and the yield during 1998 - 2007 and meteorological data
during 1961 - 2007, the main influences ofmeteorological conditions on Chinese PricklyAsh growth were analyzed and calculated with
statisticalmethod. The results indicated that the main meteorological factors about Chinese PricklyAsh in Qing’an countywere as fol
lows: the lowest temperature in winter, and temperature daily range, p recip itation, sunshine hours during the full flowering period, the
lowest temperature in the season of flower dropp ing and fruit growing, and the extremely highest temperature and p recip itation in July;
the highest temperature and average temperature in Augest. The freezing injury in early sp ring and drought in July are the main meteor
ological hazards to Chinese Prickly Ash, and their climatic frequencieswere increasing from 2000, thiswould bringmore risk and un
certain factors to Chinese PricklyAsh growth, so the variety cultivation, the soil condition, the cultivation managementmeasure should
be enhanced.

Key words: chinese loess p lateau, Chinese Prickly Ash, meteorological condition

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。

关键词: 黄土高原, 花椒生长, 气象条件