【作者】 兰斌； 哈斯；

【Author】 Lan bin1 Ha si2 (1.Inner Mongolia hua de Meteorological Office,hua de 0133502; 2. Inner Mongolia Climate Center,Huhhot 010051)

【机构】 内蒙古化德气象局； 内蒙古气候中心；

【摘要】 在浑善达克沙地内的裸沙地种草难度很大,采取保护性建植技术建成人工草地后,苜蓿和菜籽的残茬组成了很好防风固沙屏障,小气侯效应也十分明显;风速较大趋于减弱,地温变化缓和,地表空气湿度增加,温度下降,土壤墒情稳定发育,并为浅根性禾本科牧草的繁衍生长创造了良好的小气候环境。更多还原

【Abstract】 Difficulties remain when to plant new grass in the bare sandy land of Hunshandake. With the protective plantation technology to have been employed, the barrier formed by the re-grow-able roots of medicago Sativa and colza plays the both functions of windbreak and sand fixation, and the microclimate thus is obviously improved: The average speed of winds proves diminished and the changes of the ground temperature are stagnated; the increase of the air humidity is observable and air temperature therefore declines, yet the condition of soil gains better developments so that the seed birth and growth of shallow root poaceae grass are environmentally conditioned by the yielded microclimate.更多还原