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[1]ZHAO Jin-zhong,ZHAO Nian-wu,ZHAO Heng-he,et al.Climatic Changes in the Past 50 Years in Guide County, Qinghai Province, and Their Influences on Potential Productivity of Winter Wheat[J].Research of Soil and Water Conservation,2012,19(04):260-264.

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Climatic Changes in the Past 50 Years in Guide County, Qinghai Province, and Their Influences on Potential Productivity of Winter Wheat

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 04 Page number: 260-264 Column: Public date: 2012-08-20

Title:: Climatic Changes in the Past 50 Years in Guide County, Qinghai Province, and Their Influences on Potential Productivity of Winter Wheat

Author(s):: ZHAO Jin-zhong¹, ZHAO Nian-wu², ZHAO Heng-he², GUO Lian-yun², DUAN Yong-hong¹; 1. Guide Meteorological Bureau of Qinghai Province, Guide, Qinghai 811750, China;
2. Meteorological Bureau in Hainan State of Qinghai Province, Gonghe, Qinghai 813000, China

Keywords:: climatic change; winter wheat; climatic potential productivity; Guide County

CLC:: S162.5⁺3

DOI:: -

Abstract:: Change of the atmospheric temperatures, precipitation and light hours in the past 50 years in Guide County was analyzed based on the foundation data of Guide station from 1961 to 2010, including average daily temperature, monthly precipitation, and daily light hours. The potential productivity of winter wheat by using the model of Tharnthwaite Memorial and actual evaportranspiration data was calculated. The results were as followed: in the past 50 years, atmospheric temperatures kept increase significantly, annual precipitation kept decrease insignificantly, and light hours kept decrease significantly. Actual productivity of winter wheat in recent years was only 42.7% of its potential that was theoretical productivity. The rest 57.2% needed to be developed in the future. Undoubtedly, it was feasible for local people to promote actual productivity by appropriate measures.

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