precipitation efficiency meaning in Chinese

降水效率（雨湿比）

The study has systematically investigated the characters of spatial and temporal variation of temperature and precipitation in qinghai since 1961 , and the results show that the trend rate of annually average of temperature in qinghai is significantly higher than that of the other places in the whole china , with qinghai acting as a sensitive area of china climate warming , and that precipitation efficiency is also clearly improved
以配合西部大开发进行基础性、战略性和前瞻性研究，为青海省生态环境与社会经济的协调发展，水土资源的可持续利用提供科学依据。本研究系统分析了1961年以来青海省气温、降水等气候特征因子的时空变化特征，表现在青海高原年平均气温变化倾向率要明显高于全国，是中国气候变暖的敏感区，降水的有效性发生了明显变化。