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桂西北红椎次生林生长及土壤的理化性质(PDF)

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

Issue:
2004年02期
Page:
54-56
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
The Growth of Castanopsis hystrix Secondary Forest and the Soil Physicochemistry Properties in the Northwest of Guangxi
Article ID:
1000-2006(2004)02-0054-03
Author(s):
HUANG Cheng-biao~1YANG Mao-hao~1YA Mei-hua~2QIN Wan-jun~2 HUANG Huan-yang~2HUANG Ming-an~2
1.Guangxi University,Nanning 530001,China;2.Lülan Forest Farm of Guangxi,Donglan 547400,China
Keywords:
Castanopsis hystrix secondary forest(CHSF)GrowthSoil physicochemistry propertiesThe northwest of Guangxi
Classification number :
S714
DOI:
10.3969/j.jssn.1000-2006.2004.02.013
Document Code:
A
Abstract:
This paper conducted a comparison test on the measures,the existing litter biomass and its nutrient content,the soil Physicochemistry properties,ect of the Castanopsis hystrix secondary forest(CHSF,12~15 year’s old) and the similar Cunninghamia plantation (CP,15 year’s old) in Donglan County,Guangxi.The results show:(1)By comparison,the mean height-breast diameter,the mean tree height and the mean volume of the CHSF in the middle and bottom gradient are 1.6~4.0 times higher than those in the upper-gradient.(2)The existing litter biomass,the maximum net absorbing water and the main nutrients content(N,P,K)in the different CHSF forest site respectively especially those in the CHSF middle-gradient forest are higher than those in the CP forest.(3)The CHSF soil(0~40 cm deep)volume density in different forest site is 0.785~(1.349 g/cm~3).However,the maximum capillary moisture capacity and the soil aeration in the CHSF forest site are slightly higher than the CP forest site.(4)The soil organic matter(0~40 cm deep) of different CHSF site is slightly higher than that in the CP site.The total nitrogen content,the dissoluble phosphate and the dissoluble kalium content respectively are 2.39~(4.16 g/kg),0.90~1.40 mg/kg and 29.04~(41.44 mg/kg).It shows that the CHSF has a significant effect on the benefits of society,economy and ecology in these regions.

References

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Last Update: 1900-01-01