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[1]YU Hai-long,HUANG Ju-ying,WANG Ting-he.Impact of Climate Change on Climate Potential Productivity in Recent 56 Years in Middle Arid Regions of Ningxia-A Case Study of Zhongning County[J].Research of Soil and Water Conservation,2012,19(06):172-175.

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Impact of Climate Change on Climate Potential Productivity in Recent 56 Years in Middle Arid Regions of Ningxia-A Case Study of Zhongning County

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 06 Page number: 172-175 Column: Public date: 2012-12-20

Title:: Impact of Climate Change on Climate Potential Productivity in Recent 56 Years in Middle Arid Regions of Ningxia-A Case Study of Zhongning County

Author(s):: YU Hai-long¹, HUANG Ju-ying², WANG Ting-he¹; 1. College of Resources and Environment, Ningxia University, Yinchuan 750021, China;
2. Center of New Technology Application and Research, Ningxia University, Yinchuan 750021, China

Keywords:: climate changes; climate potential productivity; Zhongning County

CLC:: P467

DOI:: -

Abstract:: To find out the annual average temperature and precipitation changing condition and the effect on climate potential productivity and the climate potential productivity changing condition of Ningxia middle arid Regions under the global climate change background, based on mean temperature and precipitation data during 1953-2008 from meteorological station in Zhongning area, the climate potential productivity was calculated by using of the Miami model and Thornthwaite Memorial model. The mean temperature and precipitation, climate potential productivity temporal and spatial variation characteristics and trend were analyzed by using methods of climate diagnosis and correlation analysis. In addition, the influence of climate change on climate potential productivity was discussed. The results indicated that: (1) the temperature productivity significantly increased while the potential precipitation productivity obviously decreased in the recent 56 years, the mean climate potential productivity was 4 809.17kg/(hm²·a), the climate potential productivity decreased with fluctuation; (2) precipitation was highly linear related to climate potential productivity, but mean temperature had no obvious linear correlation to climate potential productivity. The mean temperature potential productivity was 14 367.4kg/(hm²·a), while the mean precipitation potential productivity was 3 842.8kg/(hm²·a), the latter only was 26.7% of the former. Thus, it indicated that the precipitation was the key factor to determine the potential climate productivity in Zhongning county. According to future climate scenario simulation, the warming-drying tendency of future climate will be disadvantageous to agricultural production.

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