Abstract
Up to 1949, wetlands stretched continuously and accounted for 80.17% of the total area of plain part of the Sanjiang Plain. However, wetlands in the plain have gone through 4 periods (1956–1960, 1960–1977, 1980–1986, 1986-the present) of large-scale reclamation from 1956 to the present. Over 50% wetlands had changed into agricultural fields. The underlying surface of the plain has changed tremendously. This study investigated the regional climate change by analyzing regional climatic variation and tendency and examining climate jumps over the last 45 years. Monthly records of 5 climatic factors (air temperature, precipitation, atmospheric pressure, sunshine time and wind speed) for 26 meteorological stations covering the period 1955–1999 were used. The annual mean temperature of the study region was tending to go up and increased by 1.2–2.3 °C during the last 45 years. The maximum of annual precipitation decrease in the region was 90 mm over the last 45 years. An abrupt warming of the annual mean temperature occurred in the mid-1980s, which had an increase amplitude of 0.9 °C. Of increase amplitudes of all the seasonal abrupt warming, the largest one was 1.8 °C in the winter since 1987. The plain used to be cold and humid with center of Heilongjiang province even till the late 1960s, for it had an underlying surface of wetlands in the main. However, based on the facts of the climate changes of the plain over the last 45 years, it is held that the plain had a larger warming amplitude than that of area around it in recent years probably resulted from the large-scale reclamation of various kinds of wetlands.
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References
Chen Longxun, 1991. A primary analysis of climate change in China in recent 40 years.Quarterly Journal of Applied Meteorology, 49(2): 164–173. (in Chinese)
Chen Longxun, Zhu Wenqin, Wang Wen, 1998. Studies on climate change in China in recent 45 years.Acta Meteorologica Sinica, 56(3): 257–271. (in Chinese)
Ding Yihui, Dai Xiaosu, 1994. Temperature variation in China during the last 100 years.Meteorology, 20(12): 19–26. (in Chinese)
Fu Congbin, Wang Qiang, 1992. The definition and detection of the abrupt climatic change.Scientia Atmospherica Sinica, 16(4): 482–493. (in Chinese)
Gao Suhua, Pan Yaru, Guo Jianping, 1994. The temperature change and its influences on agricultural production in China for the last 40 year.Meteorological Monthly, 20(5): 36–41. (in Chinese)
Li Yuehong, Zhang Zhengqiu, 1991. A preliminary analysis on abrupt climatic changes in Shanghai and Beijing for the last 100 years.Meteorological Monthly, 17(10): 15–19. (in Chinese)
Lin Xuechun, Yu Shuqiu, 1990. Climatic trend in China for the last 40 years.Meteorological Monthly, 16(10): 16–21. (in Chinese)
Ling Fuhua, 1984. Catastrophe theory: history, current situation and future.Advances in Mechanics, 14(4): 389–404. (in Chinese)
Liu Xingtu, 1995. Wetland and its rational utilization and conservation in the Sanjiang Plain. In: Chen Yiyu (ed.), Study of Wetlands in China. Changchun: Jilin Science and Technology Press, 108–117. (in Chinese)
Tu Qipu, 1984. Trend and periodicity of temperature change in China during the past hundred years.Journal of Nanjing Institute of Meteorology, (2): 151–162. (in Chinese)
Yamamoto R, Iwashima T, Sanga N K, 1985. Climatic jump, a hypothesis in climate diagnosis.J. Met. Soc. Japan, 63: 1157–1160.
Yamamoto R, Iwashima T, Sanga N K, 1986. An analysis of climatic jump.J. Met. Soc. Japan, 64: 273–281.
Yan Minhua, 1993. The impact of forest fire on microclimate of forest swamp in the Daxingan Mountains.Scientia Geographica Sinica, 13(4): 389–390. (in Chinese)
Yan Zhongwei, 1992. A primary analysis of the process of the 1960s northern hemispheric summer climatic jump.Scientia Atmospherica Sinica, 16(1): 111–119. (in Chinese)
Yan Zhongwei, Ji Jinjun, Ye Duzheng, 1990a. The climatic jump of the Northern Hemisphere in summer during the 1960s: I. precipitation and temperature change.Science in China (B), (1): 97–103. (in Chinese)
Yan Zhongwei, Ji Jinjun, Ye Duzheng, 1990b. The climatic jump of the Northern Hemisphere in summer during the 1960s: II. sea level pressure and 500 hPa height change.Science in China(B), (8): 879–885. (in Chinese)
Zhang Xiangong, Li Xiaoquan, 1982. Some characteristics of temperature variation in China in the present century.Acta Meteorologica Sinica, 40(2): 198–208. (in Chinese)
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Minhua, Y., Wei, D. & Panqin, C. Climate change in the Sanjiang Plain disturbed by large-scale reclamation. J. Geogr. Sci. 12, 405–412 (2002). https://doi.org/10.1007/BF02844597
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DOI: https://doi.org/10.1007/BF02844597