元江县干热河谷引种柚木生长情况初探

Growth Status of Introduced Tectona grandis in Dry-hot Valleys

在1965年引种自缅甸的元江县干热河谷柚木林分中设置4个调查样地,对在不同小地形、不同坡向和不同土壤质地上的样木生长情况进行了研究。结果表明:位于山坡的林分生长差,位于山凹的林分生长最好;在半阴坡上的样木生长状况明显优于半阳坡,同坡向相比,水土条件好的地方树木生长优于水土条件差的地方。

Four investigation forest stand plots of Tectona grandis introduced from Burma in 1965 have been set in the dry-hot valleys of Yuanjiang, the sample tree growth status were investigated on different topography, different slop aspect and different soil texture. The results showed that： forest stand located in slopes growth poor, but located in valley growth best; sample trees growth status is better on the half shady slope than half sunny slope ; with the same slope, tree growth status is better on location with better soil and water conditions than the control.