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Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China

WANG Hao LIU Guohua LI Zongshan YE Xin WANG Meng GONG Li

WANG Hao, LIU Guohua, LI Zongshan, YE Xin, WANG Meng, GONG Li. Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China[J]. 中国地理科学, 2016, 26(1): 35-47. doi: 10.1007/s11769-015-0762-1
引用本文: WANG Hao, LIU Guohua, LI Zongshan, YE Xin, WANG Meng, GONG Li. Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China[J]. 中国地理科学, 2016, 26(1): 35-47. doi: 10.1007/s11769-015-0762-1
WANG Hao, LIU Guohua, LI Zongshan, YE Xin, WANG Meng, GONG Li. Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China[J]. Chinese Geographical Science, 2016, 26(1): 35-47. doi: 10.1007/s11769-015-0762-1
Citation: WANG Hao, LIU Guohua, LI Zongshan, YE Xin, WANG Meng, GONG Li. Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China[J]. Chinese Geographical Science, 2016, 26(1): 35-47. doi: 10.1007/s11769-015-0762-1

Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China

doi: 10.1007/s11769-015-0762-1
基金项目: Under the auspices of the Strategic Priority Research Program-Climate Change:Carbon Budget and Relevant Issues of Chinese Academy of Sciences (No. XDA05060104)
详细信息
    通讯作者:

    LIU Guohua. E-mail:ghliu@rcees.ac.cn

Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China

Funds: Under the auspices of the Strategic Priority Research Program-Climate Change:Carbon Budget and Relevant Issues of Chinese Academy of Sciences (No. XDA05060104)
More Information
    Corresponding author: LIU Guohua. E-mail:ghliu@rcees.ac.cn
  • 摘要: In recent years, with the constant change in the global climate, the effect of climate factors on net primary productivity (NPP) has become a hot research topic. However, two opposing views have been presented in this research area:global NPP increases with global warming, and global NPP decreases with global warming. The main reasons for these two opposite results are the tremendous differences among seasonal and annual climate variables, and the growth of plants in accordance with these climate variables. Therefore, it will fail to fully clarify the relation between vegetation growth and climate changes by research that relies solely on annual data. With seasonal climate variables, we may clarify the relation between vegetation growth and climate changes more accurately. Our research examined the arid and semiarid areas in China (ASAC), which account for one quarter of the total area of China. The ecological environment of these areas is fragile and easily affected by human activities. We analyzed the influence of climate changes, especially the changes in seasonal climate variables, on NPP, with Climatic Research Unit (CRU) climatic data and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite remote data, for the years 2000-2010. The results indicate that:for annual climatic data, the percentage of the ASAC in which NPP is positively correlated with temperature is 66.11%, and 91.47% of the ASAC demonstrates a positive correlation between NPP and precipitation. Precipitation is more positively correlated with NPP than temperature in the ASAC. For seasonal climatic data, the correlation between NPP and spring temperature shows significant regional differences. Positive correlation areas are concentrated in the eastern portion of the ASAC, while the western section of the ASAC generally shows a negative correlation. However, in summer, most areas in the ASAC show a negative correlation between NPP and temperature. In autumn, precipitation is less important in the west, as opposed to the east, in which it is critically important. Temperatures in winter are a limiting factor for NPP throughout the region. The findings of this research not only underline the importance of seasonal climate variables for vegetation growth, but also suggest that the effects of seasonal climate variables on NPP should be explored further in related research in the future.
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出版历程
  • 收稿日期:  2014-08-26
  • 修回日期:  2014-11-21
  • 刊出日期:  2016-01-27

Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China

doi: 10.1007/s11769-015-0762-1
    基金项目:  Under the auspices of the Strategic Priority Research Program-Climate Change:Carbon Budget and Relevant Issues of Chinese Academy of Sciences (No. XDA05060104)
    通讯作者: LIU Guohua. E-mail:ghliu@rcees.ac.cn

摘要: In recent years, with the constant change in the global climate, the effect of climate factors on net primary productivity (NPP) has become a hot research topic. However, two opposing views have been presented in this research area:global NPP increases with global warming, and global NPP decreases with global warming. The main reasons for these two opposite results are the tremendous differences among seasonal and annual climate variables, and the growth of plants in accordance with these climate variables. Therefore, it will fail to fully clarify the relation between vegetation growth and climate changes by research that relies solely on annual data. With seasonal climate variables, we may clarify the relation between vegetation growth and climate changes more accurately. Our research examined the arid and semiarid areas in China (ASAC), which account for one quarter of the total area of China. The ecological environment of these areas is fragile and easily affected by human activities. We analyzed the influence of climate changes, especially the changes in seasonal climate variables, on NPP, with Climatic Research Unit (CRU) climatic data and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite remote data, for the years 2000-2010. The results indicate that:for annual climatic data, the percentage of the ASAC in which NPP is positively correlated with temperature is 66.11%, and 91.47% of the ASAC demonstrates a positive correlation between NPP and precipitation. Precipitation is more positively correlated with NPP than temperature in the ASAC. For seasonal climatic data, the correlation between NPP and spring temperature shows significant regional differences. Positive correlation areas are concentrated in the eastern portion of the ASAC, while the western section of the ASAC generally shows a negative correlation. However, in summer, most areas in the ASAC show a negative correlation between NPP and temperature. In autumn, precipitation is less important in the west, as opposed to the east, in which it is critically important. Temperatures in winter are a limiting factor for NPP throughout the region. The findings of this research not only underline the importance of seasonal climate variables for vegetation growth, but also suggest that the effects of seasonal climate variables on NPP should be explored further in related research in the future.

English Abstract

WANG Hao, LIU Guohua, LI Zongshan, YE Xin, WANG Meng, GONG Li. Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China[J]. 中国地理科学, 2016, 26(1): 35-47. doi: 10.1007/s11769-015-0762-1
引用本文: WANG Hao, LIU Guohua, LI Zongshan, YE Xin, WANG Meng, GONG Li. Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China[J]. 中国地理科学, 2016, 26(1): 35-47. doi: 10.1007/s11769-015-0762-1
WANG Hao, LIU Guohua, LI Zongshan, YE Xin, WANG Meng, GONG Li. Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China[J]. Chinese Geographical Science, 2016, 26(1): 35-47. doi: 10.1007/s11769-015-0762-1
Citation: WANG Hao, LIU Guohua, LI Zongshan, YE Xin, WANG Meng, GONG Li. Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China[J]. Chinese Geographical Science, 2016, 26(1): 35-47. doi: 10.1007/s11769-015-0762-1
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