摘要
May24-25, 2004, Joint Sino-US Symposium on Eco-logical Complexity and Ecosys-tem Services was held in Bei-jing. The symposium was co-sponsored by NSFC, CAS and NSF, and was organized by InstituteofZoology, CAS and Arizona State University. Prof.Zhu Zuoyan, Vice President of NSFC, attended the opening ceremony and made an impor-tant speech.