Growth Performance of Eight Native Broadleave Species on Hill Country in Southwestern Zhejiang

A species test with 8 native broadleaved species was set up on the hill country, having rather poorer soil conditions,in Longquan City of Zhejiang Province in 1983. After eight years from planting,survival percents of all 8 species were above 95%,but significant growth differences among species were found. Chinese Tupelo(Nyssa sinensis)and Axillary Choerospondias(Choerospondias axillaris)performed best for height and diameter growth. Sylvestral Elaeocarpus(Elaeocarpus sylvestrics),Maudia Michelia(Michelia maudiae)and Calyxless Sweetqum(Liquidambar acalycina)were middle. Huangshan Mountain Magnolia(Magnolia cylindrica),Yulan Magnolia(M. denudata)and Chinese Tuliptree(Liriodendron chinensis)performed poorest. But,second measurment at fifth growth season showed that Sylvestral Elaeocarpus and Maudia Michelia became best,especially for its diameter growth. The growth spead of Chinese Tupelo had decreased,but total growth increment remaind better. While Axillary Choerospondias and Chinese Tuliptree has serious growth degradation,and many trees died. Other three species had lower growth spead.