caa a22 4500 469032367 CHVBK 20180323132747.0 cr unu---uuuuu 170328e19920601xx s 000 0 eng 10.1007/BF02664536 doi (NATIONALLICENCE)springer-10.1007/BF02664536 Chen Hailong Changjiang River Valley Planning Office, 430010, Wuhan, PRC aut A study on regularity of drought and flood in the Changjiang River valley during last 10 centuries [Elektronische Daten] [Hailong Chen] According to historical records, there are 264 drought and flood years, occurred in the upper and middle reaches[1] of the Changjiang (Yangtze) River during last 1020 years from 961 to 1980. The evolutionary law and developing trend of drought and flood years are studied. The distribution of drought and flood years are non-uniform and the dry and flood seasons in a year are concentrated. At the angle of monsoon circulation, at present the climate in the upper and middle reaches of the Changjiang River is just in the late stage of frequent drought period and the early stage of least flood period. In addition, the cycle of drought and flood and the feature of drought and flood occurred in the upper, middle and lower reaches of the Changjiang River are analyzed. It shows that the short period less than 10 years is in the majority, and the drought and flood occurred most frequently in the middle and lower reaches of the Changjiang River. Science Press, 1992 regularity of drought and flood nationallicence the Changjiang River valley nationallicence Chinese Geographical Science Science Press 2/2(1992-06-01), 145-158 1002-0063 2:2<145 1992 2 11769 https://doi.org/10.1007/BF02664536 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02664536 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Chen Hailong Changjiang River Valley Planning Office, 430010, Wuhan, PRC aut NATIONALLICENCE 773 0- Chinese Geographical Science Science Press 2/2(1992-06-01), 145-158 1002-0063 2:2<145 1992 2 11769 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer