Nutrient contents of vegetation and their allocation characteristics in main forests of Guizhou Province

ZHANG Jiang-ping; GUO Ying; SUN Ji-hui; LIU Xiao; DING Fang-jun

doi:DOI:10.13332/j.1000-1522.20130523

Journal of Beijing Forestry University > 2015 > 37(4): 48-55. > DOI: DOI:10.13332/j.1000-1522.20130523

ZHANG Jiang-ping, GUO Ying, SUN Ji-hui, LIU Xiao, DING Fang-jun. Nutrient contents of vegetation and their allocation characteristics in main forests of Guizhou Province[J]. Journal of Beijing Forestry University, 2015, 37(4): 48-55. DOI: DOI:10.13332/j.1000-1522.20130523

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Nutrient contents of vegetation and their allocation characteristics in main forests of Guizhou Province

1.
1 Forest Surveying and Planning Institute of Guizhou Province, Guiyan, Guizhou, 550003, P. R. China
2.
2 Wildlife Protection and Nature Reserve Management Office of Guizhou Province, Guiyang, Guizhou, 550001, P. R. China
3.
3 Guizhou Academy of Forestry, Guiyang, Guizhou,550011, P. R. China

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Received Date: December 29, 2013
Revised Date: March 24, 2014
Published Date: April 29, 2015

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Abstract

Abstract

Based on the survey on the nutrient contents (N, P, and K) of vegetation in nine major forests of Guizhou, the allocation characteristics of the nutrients in the arbors, shrubs and herbs were analyzed. The results revealed that the nutrient contents in undergrowth vegetations were higher than those in the tree layer, and overall the highest in herb layer. The nutrient contents in shrub layer and tree layer varied among communities. The nutrient contents in mixed forests were higher than those in pure forests, higher in natural forests than in artificial forests, and higher in fast-growing tree species than in slow-growing tree species. In all these forest vegetations, the contents of N and K were more than those of the P with N 3.0--24.1 times and K 3.6--16.8 times as high as P. The allocation of nutrient contents in the tree layers was shown as leaf bark branch root timber, in the shrub layers as leaf root stem, and in the herb layers as aboveground underground.
- forest types,
- nutrient content,
- allocation characteristics

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