jgg     2009 29 (4):  26-29    ISSN: 0412-1961  CN: 21-1139/TG RESEARCH ON RELATIONSHIP BETWEEN TECTONIC STRESSFIELD AND STRONG SEISMIC ACTIVITY IN YUNNAN AREA Li Yujiang 1) ;Chen Lianwang 1) ;Li Hong 2) ; and Ye Jiyang 1) 1) Institute of Crustal Dynamics, China Earthquake Administration, Beijing 1000852) Earthquake Administration of Beijing Municiplity, Beijing 100080 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null