Physical Explanation for Paradoxical Climate Change in Semi-Arid Inland Eurasia Based on a Remodeled Precipitation Recycling Ratio and Clausius–Clapeyron Equation

Under global warming, the climate in semi-arid inland Eurasia (SAIE) has changed an opposite manner, thereby seriously impacting local ecological environment. However, key influencing factors and physical mechanism remain inconclusive. In this paper, we remodel precipitation recycling ratio (PRR) model to assess contributions of moisture from different water vapor sources precipitation, analyze characteristics PRR SAIE, provide possible reasons based on Clausius–Clapeyron equation. It is found that increased 1970 2017 as result linear trend analysis, with obvious seasonality. Moreover, component contributed by locally evaporated (Pl), advected (Pa) well total (P), during past 48 years. particular, Pa, Pl, P autumn winter all obviously 20 years interdecadal change trend, (Pl/P), which was decrease input I(Ω) horizontal direction. According equation, one causes might be warming accelerated cycle driven increase atmospheric holding capacity caused provides power source. We suggest climate’s transformation dry wet SAIE can only temporary since area adjustment circulation did not lead external vapor.