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...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.展开更多
文摘在广州郊区帽峰山林场开展6 个乡土阔叶树种生产性扩大栽培试验,经5 .5 年的生长观察,结果表明,半枫荷和红锥年平均生长量分别为:树高2 .09 ,1 .81 m ,胸径1 .62 ,1 .61cm ,蓄积11 .33 ,9 .77 m 3/h m 2 ,均属优良速生用材树种,作为生态公益林建设很有发展潜力。木荷虽种植于山脊,但生长相当快,年均生长树高1 .63 m ,胸径1 .33 cm ,蓄积8 .52 m 3/h m 2 ,属生长较快和较好的树种,除作防护林带经营外,也可作为用材林或混交林伴生树种。阴香和海南红豆生长一般,年均生长分别为:树高1 .39 ,0 .87 m ,胸径1 .29 ,0 .75 cm ,蓄积4 .56 ,0 .90m 3/h m 2 ,可作为景观绿化树种。铁冬青生长差,但耐阴性较强,可作为混交伴生树种。
文摘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.
