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应用生态学报 ›› 2009, Vol. 20 ›› Issue (09): 2097-2104.

• 研究报告 • 上一篇    下一篇

辽东山区次生林生态系统主要林型穿透雨的理化性质

席兴军1,2,3;闫巧玲1,2;于立忠1,2;朱教君1,2;张彩虹1,2,3;张金鑫1,2;刘长霞4   

  1. 1中国科学院沈阳应用生态研究所清原森林生态实验站, 沈阳 110016;2辽宁省生态公益林经营管理重点实验室| 沈阳 110016;3中国科学院研究生院, 北京 100049;4辽宁省清原满族自治县林业局| 辽宁清原 113300
  • 收稿日期:2008-12-25 出版日期:2009-09-20 发布日期:2009-09-20

Physical and chemical properties of throughfall in main forest types of secondary forest ecosystem in montane regions of eastern Liaoning Province, China.

XI Xing-jun1,2,3;YAN Qiao-ling1,2;YU Li-zhong1,2;ZHU Jiao-jun1,2;ZHANG Cai-hong1,2,3;ZHANG Jin-xin1,2;LIU Chang-xia4   

  1. 1Qingyuan Experimental Station of Forest Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;2Liaoning Key Laboratory for Management of Non-commercial Forests, Shenyang 110016, China|3Graduate University of Chinese Academy of Sciences, Beijing 100049, China|4Forestry Bureau of Qingyuan Manzu Autonomous County, Qingyuan 113300, Liaoning, China
  • Received:2008-12-25 Online:2009-09-20 Published:2009-09-20

摘要: 2008年7—9月,测定了辽东山区次生林生态系统5种主要林型(落叶松人工林、花曲柳林、杂木林、红松人工林和蒙古栎林)中穿透雨和林外雨的理化性质.结果表明:与林外雨相比,5种林型穿透雨均出现明显的酸化(P<0.05),其酸化程度为:红松林>落叶松林>杂木林>蒙古栎林>花曲柳林;各林型的穿透雨电导率和总溶解固体含量显著升高
(P<0.05),为蒙古栎林>花曲柳林>落叶松林>杂木林>红松林;穿透雨的溶解氧浓度显著降低(P<0.05),为红松林>杂木林>花曲柳林>蒙古栎林>落叶松林;穿透雨中Cl-浓度较林外雨明显升高,为落叶松林>蒙古栎林>杂木林>花曲柳林>红松林;花曲柳林、蒙古栎林和杂木林穿透雨中NO3-浓度均高于林外雨,而落叶松林和红松林NO3-浓度低于林外雨.

关键词: 落叶松人工林, 红松人工林, 天然次生林, pH, NO3-, 烟草, 生防菌组合, 生长发育, 诱导抗性, 黑胫病

Abstract: From July to September 2008, a measurement was made on the physical an
d chemical properties of bulk precipitation and throughfall in five main forest
types, i.e., larch plantation (LP), Fraxinus rhynchophylla stand (FR), mixed for
est stand (MF), Korean pine plantation (KP), and Mongolian oak stand (MO), of se
condary forest ecosystem in montane regions of eastern Liaoning Province, China.
 Comparing with bulk precipitation, the throughfall in the five forest types was
 significantly acidified (P<005), and the acidification degree was in the
 order of KP>LP>MF>MO>FR. The conductivity and total dissolved solids of the
throughfall increased significantly (P<005), and were in the sequence of
MO>FR>LP>MF>KP. The dissolved oxygen  concentration of the throughfall lowere
d significantly (P<005), with the rank of KP>MF>FR>MO>LP, while the Cl-
 concentration increased significantly, ranked as LP>MO>MF>FR>KP. The NO3- c
oncentrations of the throughfall in FR, MO and MF were higher, while those in LP
 and KP were lower than that of the bulk precipitation.

Key words: Larch plantation, Korean pine plantation, natural secondary forest, pH, NO3-, tobacco, biocontrol agents combination, growth and development, induced resistance, Phytophthora nicotianae.