The spatial and temporal distribution characteristics of the main convectively-coupled equatorial waves were analyzed wi......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

Forest management in several boreal countries is strongly focused on conifers because they are more productive,the techn......

利用NCEP／NCAR再分析月平均对流层顶气压、气温资料，研究了1979-2002年冬季全球对流层顶气压、气温的年际和年代际变率。选取了冬季......

T he carbon sink of boreal forests can be increased by paying forest landowners for carbon sequestration and taxing carb......