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- Title
山西省参考作物蒸散量的时空变化特征.
- Authors
李娜; 霍治国; 周晓宇; 柏秦凤; 裴秀苗; 钱锦霞
- Abstract
Based on data of daily precipitation, temperature, sunshine hours, relative humidity, wind speed and vapor pressure of 70 meteorological stations from 1960 to 2019 in Shanxi Province, the Penman-Monteith model was applied to calculate the reference evapotranspiration (ET0). The spatiotemporal variations of ET0 as well as the ET0 in different climatic zones and at different altitudes were quantitatively analyzed. The results showed that the mean annual ET0 decreased from west to east in 1960-2019. A jumping point was detected in 1982, with the mean annual ET0 increased both in 1960-1982 and 1983-2019. The monthly and ten-day changes of ET0 showed single peak curve. The variation of ET0 in different climatic zones was as follows: ET0 in temperate and semi-arid areas was higher than that in warm temperate and semi-humid areas and warm temperate and semi-arid areas in spring, summer, autumn and the whole year, while in winier, the highest ET0 was in warm temperate and semi-humid areas. ET0 varied with altitudes, with ET0 in <660 m altitude areas being higher than that in other altitudes in summer, autumn, winier and the whole year.
- Subjects
SHANXI Sheng (China); METEOROLOGICAL stations; CLIMATIC zones; VAPOR pressure; WIND speed; HUMIDITY; WIND forecasting
- Publication
Yingyong Shengtai Xuebao, 2020, Vol 31, Issue 10, p3489
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.202010.012