共和地区白刺生长与气象条件的分析

Analysis on the Growth and Meteorological Conditions of Nitraria sibirica in Gonghe Ar-ea

摘要: 2018年在青海省共和县种植白刺，对白刺的生长发育及气象条件进行分析。结果表明，气温稳定通过10℃后，当≥10℃积温为120.0℃∙d时播种白刺，10日后白刺开始出苗，17日后达到出苗盛期。在出苗期，随着降水和日照时数的增加，白刺出苗期加快。出苗盛期10日后白刺开始展叶，17日后达到展叶盛期。当旬平均气温4.0℃、平均最低气温零下时白刺叶变色始期；当平均气温降至2.0℃以下，平均最低气温降到−4.0℃时，白刺叶变色达到盛期。

Abstract: Nitraria sibirica was planted in Gonghe county of Qinghai Province in 2018, the growth and meteorological conditions of Nitraria sibirica were analyzed. The results showed that after the temperature stability through 10˚C, planted Nitraria sibirica when 10˚C or higher accumulated temperature was 120.0˚C∙d, after 10 days Nitraria sibirica began to sprout, after 17 days, it reached the peak of seedling emergence. The seedling stage of Nitraria sibirica was accelerated with the increase of precipitation and sunshine hours. The leaves of Nitraria sibirica began to unfold after 10 days of the peak of seedling emergence, the leaves would reach their prime after 17 days. When the ten-day average temperature is 4.0˚C, the lowest average air temperature is below zero; white spines leaves change color at the beginning period; when the average temperature is 2.0˚C, the average minimum temperature drops to 4.0˚C, white leaves change color to achieve stage.