摘要
矮嵩草 (Kobresiahumilis)草甸内架设开顶式增温小室后 ,在牧草生长季节 ,增温小室内的气温平均提高 1 .47℃ ,土温平均提高 1 .0 0℃ ,地表温度平均提高 1 .5 4℃ ;增温小室外的湿度略高于其内部 ;增温小室外的风速明显高于其内部 ;增温小室内外的太阳水平总辐射、反射系数和极端温度差异不显著 ,但变化趋势各有异同 ;增温小室的修建对地温与湿度间、气温与空气湿度间的相关显著性有影响 。
The influence of establishing Open-Top Chamber to micro-climate was reported in Kobresia humilis meadow in 1998. The air temperature, the temperature of soil surface and the soil temperature in house were increased by 1.47℃,1.54℃and1.00℃ than those in control plots, respectively in herbage growing season. The humidity in control plots was slightly higher than that in house. The wind speed in control plots was higher than that in house significantly (n=13, P<0.001). The difference of horizontal total radiation(w/m 2), albedo coefficients and maximum or minimum temperature were not significant; however, the changing trends were different. The establishment of Open-Top Chamber influenced the correlation between the temperature and the humidity. It was also proved that the influence to correlation between temperature and other climate factors was slightly.
出处
《青海草业》
2001年第3期1-5,共5页
Qinghai Prataculture
基金
中科院"九五"重大及特别支持项目 (KZ95 1-A1- 2 0 4
KZ95 1-A1- 30 1
KZ95T - 0 4
KT95T - 0 6 )
国家基础研究规划项目 (19980 40 80 0 )
中科院海北高寒草甸生态系统开放站基金资助
关键词
开顶式增温小室
微气候
矮嵩草草甸
影响
Open-Top chamber
Micro-climate
Kobresia humilis meadow
Influence
