【摘要】 在大量调查与资料收集的基础上,分析了毛乌素沙地周边部分旗县近20年的风速、降雨等气候因子及其它们之间相互叠加效应的变化特征,得出该沙区气候存在着长期持续干旱少雨,而且大风频繁发生的现象。此特征决定了该地区长期以来存在着土地沙漠化的潜在危险性。更多还原

【Abstract】 Based on mass investigation and collecting information,the characteristics of climate factors are analyzed including wind speed,perception and their mutual combined effects in the surrounding areas of Maowusu sandy land for nearly 20 years.The sandy area is not only sustainable dry and lower precipitation than other areas,but also often occurred stronger wind.This indicates the sandy area exist long-term of potential danger.更多还原