斯琴毕力格, 那平山, 王波, 徐洪峰. 树木休眠越冬期间水分代谢与均衡研究[J]. 中国生态农业学报(中英文), 2006, 14(3): 90-92.
引用本文: 斯琴毕力格, 那平山, 王波, 徐洪峰. 树木休眠越冬期间水分代谢与均衡研究[J]. 中国生态农业学报(中英文), 2006, 14(3): 90-92.
SIQIN Bilige, NA Ping-Shan, WANG Bo, XU Hong-Feng. Study on water metabolism and balance during the period of tree's hibernation[J]. Chinese Journal of Eco-Agriculture, 2006, 14(3): 90-92.
Citation: SIQIN Bilige, NA Ping-Shan, WANG Bo, XU Hong-Feng. Study on water metabolism and balance during the period of tree's hibernation[J]. Chinese Journal of Eco-Agriculture, 2006, 14(3): 90-92.

树木休眠越冬期间水分代谢与均衡研究

Study on water metabolism and balance during the period of tree's hibernation

  • 摘要: 试验研究树木休眠越冬期间水分代谢与均衡结果表明,越冬初期(11月30日)供试各树种体内 含水量为39.36%~49.86%,到翌年3月10日减至34.05%~41.03%,3月中旬开始回升。此 期间适宜含水量为35%~50%,>55%则易产生冻裂,<25%繁衍困难,<20%树木死亡。测试 树木越冬(11月30日~3月10日)的100d内,水分代谢均衡值为-53.1~-88.3kg,获得补给 水量为139.5~211.4kg,消耗水量为192.6~299.7kg,树木体内水分代谢保持负均衡。

     

    Abstract: The water metabolism and balance during the period of trees' hibernation were studied. The results show that at the beginning of the period of trees' hibernation , the water content of experimental trees is between 39.36% and 49.86% (Nov.30) ;to Mar.10 of the next year, it drops to 34.05%~41.03%; then it rises up till the middle of March. During this period, the optimum water content is about 35%~50%. But trees are easily hurt by cold condition while water content is beyond 55%,yet trees are very difficult to reproduce while water content is under 25%, and even they would die when water content is under 20%. Within 100 days (from Nov.30 to Mar. 10) of trees' hibernation, the average value of trees' water metabolism changes from -53.1kg to -88.3kg. Trees can utilize 139.5~211.4kg water, and consume 192.6~299.7kg water to sustain trees' water metabolis m negative balance.

     

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