20世纪天水干旱气候演变对农业影响及对策分析

Analysis on effects of evolution of dry climate in Tianshui in 20th century on agriculture and countermeasures

通过对 2 0世纪 6 0年代以前 ,天水干旱气候的历史演变和有气象资料记录以来的近 4 0 a主要气象要素变化分析 ,得出了天水 2 0世纪百年干旱气候自 90年代以来显著加重的演变规律及对农业生产的影响。同时 ,提出了相应的农业对策与建议 ,为加快农业结构调整、生态环境建设提供科学依据。

Results of the analysis on history record of evolution of dry climate and metrological date of Tianshui, Gansu Province in the 20th century show that droughts has been remarkably worsening and adversely affecting agricultural production since 1990s. And then some countermeasures are proposed, such as restructuring agriculture and accelerating ecological construction.