太宽河自然保护区森林负氧离子浓度日变化规律研究

Study on Daily Change Rule of Negative oxygen ion concentration in Taikuanhe Nature Reserve

对太宽河自然保护区主要林分类型负氧离子浓度连续测定1 d,每隔1 h计录1次数据,对油松、辽东栎、刺槐、侧柏林分的负氧离子浓度日变化规律进行了分析。结果表明:4种林分日平均负氧离子浓度大小为油松>侧柏>辽东栎>刺槐。4种林分日变化规律大致相同,白天高于夜晚,日最高值出现在13:00~15:00,不同林分间存在差异。负氧离子浓度与温度呈正相关,与湿度呈负相关。

Negative oxygen ion concentration of main stand types in Taikuanhe nature reserve was measured continuously for1 d( data was recorded every 1 h). Daily change rules of negative oxygen ion concentration of Pinus tabuliformis,Quercus liaotungensis,Robinia pseudoacacia,Platycladus orientalis stand were analyzed. Results showed that negative oxygen ion concentrations of these 4 stands were Pinus tabuliformis > Platycladus orientalis > Quercus liaotungensis > Robinia pseudoacacia. Daily change rules of these 4 stands were about in the same. Negative oxygen ion concentration in the day was higher than that in the night and the maximum value appeared at 13: 00 ~ 15: 00. The maximum value different in different stand. There was a positive correlation between the negative oxygen ion concentration and temperature,and there was a negative correlation between the negative oxygen ion concentration and humidity.