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1995~1996年在白音花沙地草地对3种绿伞系统进行了空气温度、湿度、风速、地面地中温度、水面物理蒸发和降水观测。结果表明,绿伞Ⅱ夏季、冬季防风效应均高,分别为77.4%、60.6%;在夏季绿伞降低空气温度的大小顺序为绿伞Ⅱ、绿伞Ⅰ、绿伞Ⅲ。在冬季绿伞降低空气温度的大小顺序为绿伞Ⅲ、绿伞Ⅰ、绿伞Ⅱ;提高空气湿度的顺序为绿伞Ⅲ、绿伞Ⅰ、绿伞Ⅱ;绿伞对沙地草地地面温度、水面蒸发降低以及降水截留的大小顺序为绿伞Ⅲ、绿伞Ⅰ、绿伞Ⅱ。综合放牧试验研究认为,绿伞Ⅱ对牲畜心率等影响均优于其它绿伞。因此应在科尔沁沙地及半荒漠化地区大力营造绿伞,以促进畜牧业发展和提高多种经营的生产效率。
From 1995 to 1996, the air temperature, humidity, wind speed, ground temperature, physical evaporation and precipitation observation of three kinds of green umbrella system in Baiyinhua sandy grassland were observed. The results showed that both the summer and winter windbreak effects of the green umbrella Ⅱ were 77.4% and 60.6%, respectively. In summer, the order of decreasing the air temperature was the green umbrella Ⅱ, the green umbrella Ⅰ and the green umbrella Ⅲ. In the winter, the order of decreasing the air temperature of the green umbrella is the green umbrella III, the green umbrella I and the green umbrella II; the order of increasing the air humidity is the green umbrella III, the green umbrella I and the green umbrella II; The order of decreasing of water surface evaporation and precipitation interception is green umbrella Ⅲ, green umbrella Ⅰ and green umbrella Ⅱ. Comprehensive grazing test study thinks, green umbrella II on the impact of the heart rate of livestock are superior to other green umbrellas. Therefore, we should vigorously create green umbrellas in Horqin sandy land and semi-desertified areas to promote the development of animal husbandry and improve the production efficiency of diversified operations.