CAJ | 학술논문

为了丰富本地区的树种资源，满足园林绿化对树种多样性的需求，从物候期、生长节律及光合特性等几个方面对美洲朴、毛核木、银水牛果、西部沙樱这4个北美树种在辽西地区的引种适应性进行了研究。结果表明，4个树种的萌芽、展叶期均较北京地区有所延后，花期则提前；美洲朴未见开花坐果，银水牛果秋季叶片不变色；4个树种株高、地径、枝条的快速生长期为5—7月份，美洲朴和毛核木具有明显的越冬枯梢现象，翌年生长多以萌蘖条为主；西部沙樱和银水牛果具有较强的光合作用和较高的水分利用效率，是辽西地区园林绿化可尝试引入的优良观赏树种。
위료봉부본지구적수충자원，만족완림녹화대수충다양성적수구，종물후기、생장절률급광합특성등궤개방면대미주박、모핵목、은수우과、서부사앵저4개북미수충재료서지구적인충괄응성진행료연구。결과표명，4개수충적맹아、전협기균교북경지구유소연후，화기칙제전；미주박미견개화좌과，은수우과추계협편불변색；4개수충주고、지경、지조적쾌속생장기위5—7월빈，미주박화모핵목구유명현적월동고소현상，익년생장다이맹얼조위주；서부사앵화은수우과구유교강적광합작용화교고적수분이용효솔，시료서지구완림녹화가상시인입적우량관상수충。
Adaptability experiments of 4 North American tree species to be introduced into western Liaoning Province were carried out in this paper including the measurements of pho‐nological phase ,growth rhythm and photosynthetic characteristics .The results showed that the sprout leaves period was delayed while the anthesis period was ahead of time .Flowers and fruits of Celtis occidentalis trees were not found and the leaves of Shepherdia argentea trees did not change in autumn .The rapid growth periods of these four tree species appeared from May to July .Celtis occidentalis and Symphoricarpos sinensis .had obvious overwinte‐ring withered phenomenon ,with the tillers sprouting in quantity in the next year . Prunus besseyi and Shepherdia argentea trees had strong photosynthetic capacity and water utiliza‐tion ,which can be introduced into western Liaoning Province as fine ornamental tree spe‐cies .