文中引进了“水资源有效度”概念,即可利用水量与实际需水量的匹配程度.邵阳丘陵盆地干旱的本质是水资源有效度低,主要表现为春季大量弃水,夏季可用水量远远不足.干旱是自然和人文两种过程作用的结果.最后,作者提出了以蓄水、保水和节水为核心的综合整治方略. The paper introduces the concept of “water resource validity”, that is, the matching degree of available water quantity and actual water requirement.The nature of drought in Shanyang hilly basin is that the water resource has low efficiency, which is mainly manifested by a large amount of abandoned water in spring and far less available water in summer Drought is the result of both natural and human processes.Finally, the author puts forward a plan of comprehensive improvement focusing on water storage, water conservation and water saving.