【摘要】 以粤西桉树速生林和荔枝经济林为研究对象,比较了不同管理方式下两种林型水土流失特征。得出:1在坡度一定的情况下,林地管理方式对水土流失量影响巨大,使用除草剂能有效减少水土流失量;且坡度越大影响越剧烈;2桉树林下作物种植,采取合理的种植管理方式可以有效控制水土流失程度;种植过程中注意减少地面干扰,可以控制流失量在轻度水平;3坡度为15°以上的丘陵坡地,不适合建立传统人工铲草方式的果园,自然生长的桉树林地具有控制水土流失的显著效能。更多还原

【Abstract】 The fast-growing eucalyptus and litchi forest in western Guangdong has been taken as research object,and the different management modes in two forest types of soil erosion characteristics have been compared. Results showed that: 1,in the certain slope situation,forest management had huge impact on the amount of soil erosion,the used of herbicides can effectively reduce soil erosion; and the greater the slope influence more intensity; 2,crop under eucalyptus trees,reasonable planting management mode can effectively control the degree of soil erosion; The reduced interference planting process could control the loss in mild level; 3,the slope above 15 degrees is not suitable for the establishing the traditional artificial way shovel grass. Natural growth eucalyptus forest has significant effectiveness to control soil erosion.更多还原