A Study of the Distribution and Accumulation of Major Nutrient Elements in Different Densities of <i>Eucalyptus grandis</i>

WANG Li; LONG Han-li; GUO Hong-ying; GU Yun-jie; XIAO Xing-cui; SHENG Yu-zheng

doi:10.16779/j.cnki.1003-5508.2016.06.001

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Volume 37 Issue 6

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2016 > 37(6): 1-5

WANG Li, LONG Han-li, GUO Hong-ying, GU Yun-jie, XIAO Xing-cui, SHENG Yu-zheng. A Study of the Distribution and Accumulation of Major Nutrient Elements in Different Densities of Eucalyptus grandis[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(6): 1-5. doi: 10.16779/j.cnki.1003-5508.2016.06.001

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WANG Li, LONG Han-li, GUO Hong-ying, GU Yun-jie, XIAO Xing-cui, SHENG Yu-zheng. A Study of the Distribution and Accumulation of Major Nutrient Elements in Different Densities of Eucalyptus grandis[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(6): 1-5. doi: 10.16779/j.cnki.1003-5508.2016.06.001

A Study of the Distribution and Accumulation of Major Nutrient Elements in Different Densities of Eucalyptus grandis

doi: 10.16779/j.cnki.1003-5508.2016.06.001

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Sichuan Academy of Forestry, Chengdu 610081, China

Received Date: 2016-11-03

Abstract

In this paper,studies were made of the distribution and accumulation of major elements of 5-year old Eucalyptus grandis forest with the densities of 556 trees per hectar and 1667 trees per hectar.The results showed that:①The distribution of major nutrient element content in different organs of 2 kinds of densities was nearly the same.And the ranked order was leaf > tree trunk > big branch or branchlet > fruit > bark; ②From the distribution of nutrient elements and organic matter in the trunk,P,K,Mg and Ca content presented basically increasing along with the trunk height.And the organic matter content increased with the trunk height in low density stand,while the result was opposite in high density stand.At the same time,N content increased witn the trunk height in low density stand,but the content in high density increased after the decrease and increased at the last.③From the ditribution of biomass,the ranked ordered was tree trunk > bark or big branch > branchlet > leaf > fruit.④The accumulation of major nutrient element content in different organs of 2 kinds of densities was nearly same.Ca content was the highest in two kinds of piantations,followed by N,K,Mg and P content.Ca content was 601.78 kg per hectare in low density stand and 1 204.43 kg per hectare in high density stand.
- Eucalyptus grandis;
- Stand density;
- Nutrient elements;
- Distribution
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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A Study of the Distribution and Accumulation of Major Nutrient Elements in Different Densities of Eucalyptus grandis

doi: 10.16779/j.cnki.1003-5508.2016.06.001

Sichuan Academy of Forestry, Chengdu 610081, China

Received Date: 2016-11-03

Key words:

Abstract: In this paper,studies were made of the distribution and accumulation of major elements of 5-year old Eucalyptus grandis forest with the densities of 556 trees per hectar and 1667 trees per hectar.The results showed that:①The distribution of major nutrient element content in different organs of 2 kinds of densities was nearly the same.And the ranked order was leaf > tree trunk > big branch or branchlet > fruit > bark; ②From the distribution of nutrient elements and organic matter in the trunk,P,K,Mg and Ca content presented basically increasing along with the trunk height.And the organic matter content increased with the trunk height in low density stand,while the result was opposite in high density stand.At the same time,N content increased witn the trunk height in low density stand,but the content in high density increased after the decrease and increased at the last.③From the ditribution of biomass,the ranked ordered was tree trunk > bark or big branch > branchlet > leaf > fruit.④The accumulation of major nutrient element content in different organs of 2 kinds of densities was nearly same.Ca content was the highest in two kinds of piantations,followed by N,K,Mg and P content.Ca content was 601.78 kg per hectare in low density stand and 1 204.43 kg per hectare in high density stand.