CULTURAL DISTRIBUTION AND SITE CLASSIFICATION FOR CAMELLIA OLEIFERA Ecological habit of two varieties of Avena fatua on wheat field of North Jiangsu Provinceand their control Influence of ecological habitat on the occurrence and dynamics of Lygus lucorum Mayr and its natural predator The correlation of geographic distribution and ecological environment of endemic species Floccularia luteovirens on Qinghai-Tibet Plateau Studies on Wood Anatomy of Eucalyptus globulus Under Different Habitats A STUDY ON THE BIONOMICS OF DlCTYOPHORA ECHINOVOLVATA