| 大兴安岭地区森林沼泽生态系统火生态效应研究 |
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| 引用本文： | 杨永兴,杨玉娟,庞志平,杨永海.大兴安岭地区森林沼泽生态系统火生态效应研究[J].海洋与湖沼,1995,26(6):610-618. |
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| 作者姓名： | 杨永兴 杨玉娟 庞志平 杨永海 |
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| 作者单位： | 中国科学院长春地理研究所!长春，130021，东北师范大学电化教育系!长春，130024，东北师范大学电化教育系!长春，130024，吉林工业大学测试中心!长春，130025 |
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| 基金项目： | 国家自然科学基金!48970017 |
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| 摘 要： | 于１９９０年５月－１９９３年１０月，为查清火灾对森林沼泽生态系统，采取野外面上考察与定位观测，野外实验与室内分析化验，定性分析与定量分析相结合的方法，在阿木尔林业局长缨林场、红旗林场选取观测点进行森林沼泽生态系统火生态效应的对比观测与实验。
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| 关 键 词： | 森林 沼泽 生态系统 火生态效应 大兴安岭地区 |
| 收稿时间： | 1994/2/18 0:00:00 |
| 修稿时间： | 1994/6/23 0:00:00 |
FOREST FIRE'S ECOLOGICAL EFFECT ON FOREST MIRE ECOSYSTEM IN THE DAXINGANLING MOUNTAINS |
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| Yang Yongxing,Yang Yujuan,Pang Zhiping and Yang Yonghai.FOREST FIRE''S ECOLOGICAL EFFECT ON FOREST MIRE ECOSYSTEM IN THE DAXINGANLING MOUNTAINS[J].Oceanologia Et Limnologia Sinica,1995,26(6):610-618. |
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| Authors: | Yang Yongxing Yang Yujuan Pang Zhiping and Yang Yonghai |
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| Institution: | Institute of Geography, Acadcmia Sinica, Changchun 130021;Department of Audio_Visual Education,Northeast Norm,al University,changchun 130024;Department of Audio_Visual Education,Northeast Norm,al University,changchun 130024;Test Center of Jilin University of Technology, changchun 130025 |
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| Abstract: | To ascertain forest fire's effects on the forest mire ecosystem, fixed observa-tions, field investigations and experiments, laboratory analyses, and qualitative andquantitative analyses were conducted from May 1990 to Oct. 1993. The followingconclusions were obtained from comprehensive analysis of a great deal of materialsand data. The fire ecological factor is characterized by high frequency, short cyclicperiod and high intensity in this region, and is one of the most active and mostimportant ecological environment facots. It makes a big impact on the compositionand abundance plant, animal and soil microbes in the mire ecosystem. Fire's actionon mire, water content, volume weight, temperature increases obviously the contentof main nutrient elements of mire soil. Tlie underground water level descends inslope mire, rises in valley mire. The mineralization degree,'cations content and pHof mire water increase, transparency reduces. Fire inhibits the peat accumulation andaccelerates the biogeochemical cycle of the mire ecosystem and also disturbs the peatdepositiona1 stratigraphic sequence. Fire can change mire microtopography and itssuccessional regularity. In addition, fire destroys the paleoecological environmentinformation base of mire formation and development. |
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| Keywords: | Forest mire Fire ecological factor Fire ecological effect Daxinganling Mountains |
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