Spatial and temporal characteristics of surface dry-wet variations in Qinling Mountain from 1960 to 2011
REN Zhiyuan, LI Dongyu, LIU Xianfeng
(College of Tourism and Environment, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)
Abstract:
Penman-Monteith model, trend analysis and correlation analysis were employed to analyze the temporal-spatial variations of surface dry-wet and its influencing factors in Qinling Mountain. The results show that (1) Potential evapotranspiration(ET0) and dry index (I) increased gradually from the south to the north in spatial; (2) As a whole, ET0 decreased in Qinling Mountain with a drop rate of —0.314 mm/a (P
KeyWords:
potential evapotranspiration; dry-wet variation; temporal and spatial characteristics; Qinling Mountain