马莲河流域梯田埂坎立地分类与经济植物带建设

用４级立地分类方法，对马莲河流域内的梯田埂坎进行立地类型划分，在地貌部位上高原沟壑区和残塬丘陵沟壑区各有５种类型的埂坎：川台地埂坎、塬面埂坎、阴坡埂坎、半阳坡埂坎、阳坡埂坎，其土壤含水量通过ｑ测验，在α＝００５水平上存在显著的差异性。因而在这１０种埂坎上建植地埂经济植物带时，所选择的经济植物种类有所区别，以充分利用埂坎的光、热、水资源，发挥最大经济效益。

Classification of Terrace Embankment and Construction of Economical Plant Zone in Malian River Watershed Area

Terrace embankment in Malian river watershed has been classified by forth degree site classification methods. On geomorphologic section, five types, of embankment have been included respectively in plateau valley section and incomplete plateau surface hill section. Each of them is table land embankment, plateau surface embankment, north slope embankment, semi south slope embankment and south slope embankment respectively. The water soil content is tested by Q tests. A remarkable difference exists in α=0.05 level. In order to utilize light, energy and water source, and economical plants should be selected reasonably to get maximum economical benefit when we built economical plant zone of terrace embankment in the ten types of embankment.