论文部分内容阅读
热带、半干旱和地中海地区由于气候和开垦的影响,土壤退化相当严重。下面概述在 这些情况下的几项水土保持试验研究成果。 本文介绍的几篇论文的概况如表1。
Tropical, semi-arid and Mediterranean areas have serious soil degradation due to climate and reclamation. The following is a summary of several soil and water conservation pilot studies under these circumstances. This article describes the several papers summarized in Table 1.