Advances in Earth Science ›› 2001, Vol. 16 ›› Issue (6): 836-841. doi: 10.11867/j.issn.1001-8166.2001.06.0836

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A STUDY ON THE RELATIONSHIP BETWEEN DISTRIBUTIVE VARIATION OF WETLANDS AND REGIONAL CLIMATE CHANGE IN SANJIANG PLAIN

ZHANG Shuqing,  ZHANG Bai,  WANG Aihua   

  1. Changchun Institute of Geography, CAS, Changchun 130021,China
  • Received:2001-05-21 Revised:2001-08-15 Online:2001-12-20 Published:2001-12-01

ZHANG Shuqing, ZHANG Bai, WANG Aihua. A STUDY ON THE RELATIONSHIP BETWEEN DISTRIBUTIVE VARIATION OF WETLANDS AND REGIONAL CLIMATE CHANGE IN SANJIANG PLAIN[J]. Advances in Earth Science, 2001, 16(6): 836-841.

Because of human activities, climate change nowadays essentially differs with that of the past, and the range of climate change in the 100 years has far exceeded that of past 10,000 years. As a most essential factor to control the distributive variation of wetlands, the change of climate greatly influences on material circle, energy flow, the productivity and propagation of wetlands. The relationship between climate change and the distributive variation of wetlands has been attached importance to by human being.Sanjiang plain, where is the biggest fresh wetlands distributed area in China, has been reclaimed for many years and has became a famous base of cash foodstuff. Because of the loss of wetlands, the environment has deteriorated, the temperature has increased, and the humidity has decreased. The pace of climate change in this region exceeds that of global change.From remote sensing data and wetland survey data, the dynamic data of wetlands in Sanjiang plain in last two decades has been acquired. Do unitary process to the dynamic data of wetlands and climate data and make them comparable. Based on these, using gray relevancy analysis we can find out the relationship of them. The results show that wetlands play an important role on balancing the regional cold and wet weather. The variation of wetlands in Sanjiang plain is negatively related with the temperature changes, positively related with the precipitation changes and the humidity changes. The distributive variation of wetlands has the closest relationship with precipitation, has less relationship with sunshine, and has almost nothing to do with snow.

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