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Chinese Agricultural Science Bulletin ›› 2018, Vol. 34 ›› Issue (33): 122-128.doi: 10.11924/j.issn.1000-6850.casb18050061

Special Issue: 农业气象

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Climate Change and Its Impact on Natural Pasture in Guoluo, Qinghai 1967-2017

  

  • Received:2018-05-13 Revised:2018-07-17 Accepted:2018-07-25 Online:2018-11-22 Published:2018-11-22

Abstract: To understand the relationship of natural grassland forage yield and climate of Guoluo in Qinghai, using the temperature, precipitation, sunshine hours data from 1967 to 2017 and the forage yield data from 2003 to 2017 of six counties of Guoluo, we analyzed the variation characteristics of temperature, precipitation and sunshine hours and their influence on forage yield. The results showed that: the annual average temperature presented a significantly warming trend, the precipitation presented a trend of increase, and the annual sunshine hours presented a trend of decrease. The forage production is mainly determined by the production of August, there was a significantly positive correlation between the herbage production in August and the air temperature, precipitation, and a significantly negative correlation between the herbage production in August and the sunshine hours in growing period.