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forest mire
相关语句
  森林沼泽
     Study on Main Trace Element of Plant and Soil in Transformed Forest Mire of Xiao Xingan Mountain
     小兴安岭改造后森林沼泽土壤与植物中主要微量元素的研究
短句来源
     FOREST FIRE'S ECOLOGICAL EFFECT ON FOREST MIRE ECOSYSTEM IN THE DAXINGANLING MOUNTAINS
     大兴安岭地区森林沼泽生态系统火生态效应研究
短句来源
     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.
     于1990年5月1993年10月,为查清火灾对森林沼泽生态系统的影响,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。
短句来源
  相似匹配句对
     forest .
     林。
短句来源
     FOREST RECREATION
     森林旅游
短句来源
     FOREST FIRE'S ECOLOGICAL EFFECT ON FOREST MIRE ECOSYSTEM IN THE DAXINGANLING MOUNTAINS
     大兴安岭地区森林沼泽生态系统火生态效应研究
短句来源
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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...

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.

于1990年5月1993年10月,为查清火灾对森林沼泽生态系统的影响,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。研究表明:本区火生态因子具有发生次数多、频度高、火灾轮回期短、作用强度大的特点;火是森林沼泽生态系统最活跃、最重要的生态环境因子之一。火改变了森林沼泽植物、动物、微生物的生存环境,使其组成、数量发生明显变化;火生态因子作用后,森林沼泽土壤含水量、容重、温度、PH值、主要营养元素含量增加;坡地上森林沼泽地下水位下降,而沟谷内森林沼泽地下水位上升;森林沼泽水的矿化度、阳离子含量、PH值显著增加,透明度下降;火抑制泥炭积累,使泥炭中存贮的森林沼泽形成、发育的古生态环境信息缺失。

The transformed forest mire in Xiao Xingan mountain is formed when the mire consisting of Larix gmelinii and sphagnum is drawn Having tested and analysised the soil and plant of mire 20 kinds of trace element are found,of all these trace elements,Mn,Zn,B,Cu,Co are the most important to the growth and development of plant,but their content have obvious difference Five elements show law as following:Mn>Zn>B>Cu>Co The contents...

The transformed forest mire in Xiao Xingan mountain is formed when the mire consisting of Larix gmelinii and sphagnum is drawn Having tested and analysised the soil and plant of mire 20 kinds of trace element are found,of all these trace elements,Mn,Zn,B,Cu,Co are the most important to the growth and development of plant,but their content have obvious difference Five elements show law as following:Mn>Zn>B>Cu>Co The contents of element are different in every soil layer and various plant organ The distributed regularity of time and space and the season change are obvious Our research result has very important significance to raise Larix gmelinii production

小兴安岭改造后的森林沼泽是兴安落叶松-泥炭藓沼泽经挖沟排水改造而成.测试分析表明该沼泽土壤与植物中含微量元素20余种.对植物生长发育最有影响的元素为锰、锌、硼、铜、钴五种.它们在土壤与植物中的含量有明显差异,但也有共性,即锰>锌>硼>铜>钴.土壤各层次与植物各器官中的微量元素含量亦有不同,时空和季节变化规律明显,本项工作对兴安落叶松生产量的提高有重要意义

 
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