Observed precipitation trends in the Yangtze river catchment from 1951 to 2002  

作　　者：SUBuda JIANGTong SHIYafeng StefanBECKER MracoGEMMER 

机构地区：[1]NanjingInstituteofGeographyandLimnology,CAS,Nanjing210008,China [2]InstituteofGeography,Justus-LiebigUniversity,35390Giessen,Germany

出　　处：《Journal of Geographical Sciences》2004年第2期204-218,共15页地理学报（英文版）

基　　金：KeyProjectofCAS;No.KZCX3-SW-331;NationalNaturalScienceFoundationofChina;No.40271112;FoundationofKeyLaboratoryofFloodandWaterloggingandWetlandAgricultureofHubeiProvince

摘　　要：The monthly, seasonal, and annual precipitation trends in the Yangtze river catchment have been detected through analysis of 51 meteorological stations' data between 1950-2002 provided by National Meteorological Administration. Results reveal that: 1) Summer precipitation in the Yangtze river catchment shows significant increasing tendency. The Poyanghu lake basin, Dongtinghu lake basin and Taihu lake basin in the middle and lower reaches are the places showing significant positive trends. Summer precipitation in the middle and lower reaches experienced an abrupt change in the year 1992; 2) The monthly precipitation in months just adjoining to summer shows decreasing tendency in the Yangtze river catchment. The upper and middle reaches in Jialingjiang river basin and Hanshui river basin are the places showing significant negative trends; 3) Extreme precipitation events show an increasing tendency in most places, especially in the middle and lower reaches of the Yangtze river catchment.The monthly, seasonal, and annual precipitation trends in the Yangtze river catchment have been detected through analysis of 51 meteorological stations' data between 1950-2002 provided by National Meteorological Administration. Results reveal that: 1) Summer precipitation in the Yangtze river catchment shows significant increasing tendency. The Poyanghu lake basin, Dongtinghu lake basin and Taihu lake basin in the middle and lower reaches are the places showing significant positive trends. Summer precipitation in the middle and lower reaches experienced an abrupt change in the year 1992; 2) The monthly precipitation in months just adjoining to summer shows decreasing tendency in the Yangtze river catchment. The upper and middle reaches in Jialingjiang river basin and Hanshui river basin are the places showing significant negative trends; 3) Extreme precipitation events show an increasing tendency in most places, especially in the middle and lower reaches of the Yangtze river catchment.

关 键 词：Yangtze river catchment precipitation trends the period 1951 to 2002 

分 类 号：P426.616[天文地球—大气科学及气象学] P468.024