北方农牧交错带牧区羊舍冬季小气候研究

Study on the microclimate of sheep-raising house in winter in pasturing area of northern ecotone

摘要: 对北方农牧交错带封闭式无供暖羊舍进行小气候观测研究结果表明，羊舍内地面温度日变化平稳，为-2．5～012间，羊归牧卧盘时20：00至翌日8：00地面温度比羊圈和野外均增加l1℃ 左右，使羊体与地面热交换大为减少。归牧后羊舍0．3m 羊的生活高度处比羊圈温度高1012 以上，舍内温度基本为-2℃左右，相对湿度为58％；1．5m 高度处舍内温度维持在0℃左右，相对湿度为65％，基本达到羊舍温度标准。一般羊圈基本无保温效果，但有一定防风效果，羊圈使0．3m 高度处风速减少lm／s左右。

Abstract: The microclim ate of the sheep-raising house in the northern ecotone was observed in winter．The results show that the surface temperatures in unheated houses are -2．5～0℃．It raises tO 11℃ that is higher than that in the sheep pen and outside during 20．00 P．m～8．00 a．m at the level of 0．3m ．The air temperature in the house is -2℃ which is 10C higher than that in the sheep pen and outside and the rdative humidity in it is 58％．The air temperature in the unheated sheep-raising house with an enlarged density can reach tO 0℃ at the level of 1．5m and the relative humidity in it is 65％．