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[1]WANG Yanping,YIN Xiuxia,HOU Qiong,et al.Influence of Climate Change on Corn and Soyben in Eastern Da Hinggan Mountains over the Last 30 Years[J].Research of Soil and Water Conservation,2016,23(04):325-330,337.

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Influence of Climate Change on Corn and Soyben in Eastern Da Hinggan Mountains over the Last 30 Years

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 04 Page number: 325-330,337 Column: Public date: 2016-04-28

Title:: Influence of Climate Change on Corn and Soyben in Eastern Da Hinggan Mountains over the Last 30 Years

Author(s):: WANG Yanping¹, YIN Xiuxia¹, HOU Qiong², QU Xuebin¹, TANG Hongyan², CHEN Suhua²; 1. HulunBeier Weather Bureau of Inner Mongolia, Hailaer, Inner Mongolia 021008, China;
2. The Ecological and Agricultural Meteorology Center of Inner Mongolia, Hohhot 010051, China

Keywords:: eastern Da Hinggan Mountains; climate change; crops; growth; yields

CLC:: S532;S162

DOI:: -

Abstract:: Based on the data of meteorological observation and yields during the corn and soybean growth periods (i. e. from May to September) over the past 30 years in the county of Zhalantun, Arong, Molidawa, east of Da Hinggan Mountains, Inner Mongolia, using the mathematical statistics, wavelet analysis and integral regression methods, we analyzed the characteristics of climate change which influences on growth, development, and yields of corn and soybean. The results show that from 1984 to 2013 the average temperature in growth periods significantly increased in the above mentioned regions, the climate tendency rate was 0.552℃/10 years, climate experienced three oscillation per 22~26 years as a main cycle, which show the enhanced trends. Accordingly, in the same time, the precipitation shows overall downward trend, the climate tendency rate is 25.838 mm/10 years, four oscillations of climate form a main cycle per 19~24 years, which shows increasing trends. Likewise, the aridity index shows overall rising trend, the climate tendency rate is 0.154/10 years, in the 21^st century, the aridity index shows significantly fluctuating d increase, but presents the low value range recently, climate change has no significant influence on the crop growth and development stage in east of Da Hinggan Mountains, the sustained days of sowing, harvesting date and different developmental stages were relative stabilization. Temperature and precipitation have different influences on the growth and yield of different crops, even for growth and development of the same crop at different stages.

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