【摘要】 坡地农林复合系统的土壤养分过程包括养分坡面流失、地下损失、系统养分循环等空间过程及土壤养分的年、季度变化的时间过程。目前 ,国内外的研究多局限于控制坡面流失、系统养分循环和提高土壤肥力的效果等方面 ,研究方法以定性研究和统计分析为主 ,在养分流失机理、地下损失、养分过程的区域对比等领域的研究还很缺乏 ,研究的深度与广度均需拓展更多还原

【Abstract】 The nutrient processes of sloping agroforestry systems include the spatial processes such as nutrient loss on the slopeland surface and under the surface, nutrient cycle and the temporal processes such as the nutrient variation in years and seasons. Most of the research works focused on the nutrient loss on the slopeland surface,the improvement of soil fertility and nutrient cycle. However, studies on the mechanism of nutrient loss, nutrient loss under the slopeland surface and regional comparison on nutrient loss are scarce yet, the further studies are essential.更多还原