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稀土对杉木、杨树幼林生长的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2001年04期
Page:
61-64
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
Effect on the Young Trees′ Growth of Cunninghamia lanceolata and Populus Treated by the Rare earth Solution
Article ID:
1000-2006(2001)04-0061-04
Author(s):
MA Yong chun 1LUO Ning 2ZHANG Wen bin 1XU Liu yi 2ZHONG Jia duo 3CAI Wei bing 1
1.The Forestry Department of Anhui Province, Hefei 230001,China;2.The Forestry Science Institute of Anhui Province, Hefei 230031,China;3. The Forestry Bureau of Tongling County, Tongling 244100, China
Keywords:
Rare earth Cunninghamia lanceolata Populus The roots’ assimilating surface
Classification number :
S725
DOI:
10.3969/j.jssn.1000-2006.2001.04.016
Document Code:
A
Abstract:
Applied the rare earth solution to Cunninghamia lanceolata and Populus ,the indexes about their roots assimilating rare earth were investigated. The observed results show that the average square differences on the total assimilating surfaces and the active assimilating surfaces of the young trees’ roots are remarkable, but the average square differences on the rates between the surface area and the volume of assimilating roots are not remarkable. When soaked by the rare earth solution of 500 mg/kg, the index of Populus roots assimilating rare earth is the highest; correspondingly, when sprayed by the rare earth solution of 800 mg/kg, the index of Cunninghamia lanceolata′s roots assimilating rare earth is the highest. Comparing to the CK, the growth of the height and the bottom diameter of the young tree and the dry weight of the root increased after treated by the rare earth solution.

References

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Last Update: 1900-01-01