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松枯梢病对湿地松、火炬松生长影响的研究(PDF)

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

Issue:
1998年04期
Page:
31-34
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
A STUDY ON INFLUENCE OF THE PINE SHOOT DIEBACK DISEASE ON GROWTH OF PINUS ELLIOTTII AND P.TAEDA
Article ID:
1000-2006(1998)04-0031-04
Author(s):
Wei Chujiang
Forest Disease and Insect Pests Control & Quarantine General Station of Fujian Province Fuzhou 350003
Keywords:
Pinus elliottiiPinus taeda Pine shoot dieback diseaseLoss estimate models of growth
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1998.04.007
Document Code:
A
Abstract:
The results,observed and investigated in Pinus elliottii and P.taeda young stands of Minhou county, Liancheng county and Changle city, showed the pine shoot dieback disease lowered respectively 56.73% and 35.82% of the length and diameter growth of P.elliottii new shoots. The diseased shoot length and diameter growth were slowed up with the disease developing. The growth difference between the diseased and normal shoots became even more obvious after the disease peak of June.The disease incidence was negatively correlated with height and dbh of young trees.According to the damage from the diseaes measured through 25plots in 13~17 years old stands of P.elliottii in Nanyu forest farm. The loss estimate models of height(y^), dbh (y^),and volume (y^)have been established.The three models provide a scientitic basis for loss assessment and control decision of the disease.

References

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Last Update: 1900-01-01