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首页> 外文期刊>Journal of Northeast Forestry University >COMPARATIVE ANALYSES ON THE LITTER IN KOREAN PINE MONGOLIAN SCOTS PINE AND DAHURIAN LARCH PLANTATIONS (II) CONTENT AND RETURNING AMOUNT OF NUTRIENT ELEMENTS
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COMPARATIVE ANALYSES ON THE LITTER IN KOREAN PINE MONGOLIAN SCOTS PINE AND DAHURIAN LARCH PLANTATIONS (II) CONTENT AND RETURNING AMOUNT OF NUTRIENT ELEMENTS

机译：大红松蒙古落叶松人工林和大胡落叶松人工林凋落物的比较分析（二）营养元素含量及返还量

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摘要

Comparative analyses were conducted on the nutrient element content and returning amount of main fractional compositions of litter in Korean pine (KP), Mongolian Scots pine (MSP) and Dahurian larch (DL) plantations in Laoshan Plantation Experiment Station of Maoershan Experiment Forest Farm of Northeast Forestry University. The results are as follows: (1) The nutrient element content and returning amount in litter varies among different fractional compositions and tree species, the total returning amount of all nutrient elements and the returning amount of K, Ca, Mg, N and P are DL > MSP > KP, the returning amount of Cu is DL > KP> MSP, the returning amount of Fe and Mn are MSP > DL > KP; (2) To KP and DL plantations, the main nutrient element returned is dead needles; dead branches, bark scales and dead cones account for a little proportion; whereas to MSP plantation, besides dead needles, dead branches and bark scales also play an important role in the return of nutrient elements; (3) A little deal of dead leaves can provided a great deal of returning amount of nutrient elements.
机译：对东北茅尔山实验林场La山人工林试验站的红松，蒙古樟子松和达拉斯落叶松人工林凋落物的营养元素含量和主要组成成分的返回量进行了比较分析。林业大学。结果表明：（1）凋落物中养分元素的含量和返还量在不同的组成和树种之间有所不同，所有养分元素的总返还量和钾，钙，镁，氮和磷的返还量为DL＞ MSP＞ KP，Cu的返回量为DL＞ KP＞ MSP，Fe和Mn的返回量为MSP＞ DL＞ KP。 （2）对KP和DL人工林而言，返回的主要营养元素是死针；死枝，树皮鳞片和死锥占很小的比例；对于MSP人工林，除了枯死的针叶，枯死的树枝和树皮鳞片在营养元素的返回中也起着重要的作用。 （3）少量的枯叶可以提供大量的营养元素返回。

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