Caloric values and correlations of nutrient elements in three forestation species of a coastal sandy land

ZHU Mei-qin; YE Gong-fu; YOU Shui-sheng; YOU Long-hui; BAI Yong-hui; GAO Wei

doi:10.11833/j.issn.2095-0756.2012.06.005

Volume 29 Issue 6

Nov. 2012

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ZHU Mei-qin, YE Gong-fu, YOU Shui-sheng, YOU Long-hui, BAI Yong-hui, GAO Wei. Caloric values and correlations of nutrient elements in three forestation species of a coastal sandy land[J]. Journal of Zhejiang A&F University, 2012, 29(6): 829-834. doi: 10.11833/j.issn.2095-0756.2012.06.005

Citation:

ZHU Mei-qin, YE Gong-fu, YOU Shui-sheng, YOU Long-hui, BAI Yong-hui, GAO Wei. Caloric values and correlations of nutrient elements in three forestation species of a coastal sandy land[J]. Journal of Zhejiang A&F University, 2012, 29(6): 829-834. doi: 10.11833/j.issn.2095-0756.2012.06.005

Caloric values and correlations of nutrient elements in three forestation species of a coastal sandy land

doi: 10.11833/j.issn.2095-0756.2012.06.005

1.
Forestry College，Fujian Agriculture and Forestry University，Fuzhou 350001，Fujian，China;
2.
Fujian Academy of Forestry Sciences，Fuzhou 350012，Fujian;

More Information

Corresponding author: YE Gong-fu
Received Date: 2011-12-06
Rev Recd Date: 2012-04-08
Publish Date: 2012-12-20

Abstract

The objective is to examine and compare the allocation patterns of caloric and elemental contents for three forestation species on coastal sandy land，and to summarize correlations between caloric values and elememtal contents. In July of 2010，three forestation species （Pinus elliottii，Acacia crassicarpa and Casuarina equisetifolia） were sampled from a coastal sandy land in Dongshan County，Fujian Province. All organs of each tree species were harvested. The gross caloric values （GCV） were measured by oxygen bomb calorimeter. Ash，and the contents of C，N，P，K，Ca and Mg were analyzed. The results showed that the mean gross caloric values and the mean ash free caloric values decreased in the following order：P. elliottii （20.96 kJg－1，21.41 kJg－1）A. crassicarpa （20.97 kJg－1，21.35 kJg－1）＞C. equisetifolia （20.18 kJg－1，20.69 kJg－1）. The mean C content in P. elliottii （491.548 gkg－1） was higher than in A. crassicarpa （471.773 gkg－1） and C. equisetifolia （460.042 gkg－1）. The N，P，K，Ca，and Mg content in different organs of these three species were as follows：leaves＞branches＞barks＞roots＞stems. The mean content of N，P，K，Ca，and Mg of A. crassicarpa were the highest，then was C. equisetifolia，P. elliottii was the lowest. Gross caloric value was significantly correlated with Mg content （r =0.600，P ＜ 0.05） and with content of N （r = 0.641，P ＜ 0.01），P （r = 0.879，P ＜ 0.01），and K （r = 0.726，P ＜ 0.01）. Ash content was significantly correlated with P content （r = 0.673，P ＜ 0.01） and was significantly correlated with content of K （r = 0.524，P ＜ 0.05），Ca （r = 0.523，P ＜ 0.05），and Mg （r = 0.639，P ＜ 0.05）. Compare to C. equisetifolia，P. elliottii had the highest carbon content and the lowest elemental content，meanwhile，A. crassicarpa could fixed nitrogen through rhizobium to produce fertilizers and improve soil. So P. elliottii and A. crassicarpa can be used as alternative tree species in coastai sandy land.［Ch，4 tab. 15 ref.］
- coastal sandy land,
- tree species,
- caloric value,
- nutrient element,
- correlation,

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Caloric values and correlations of nutrient elements in three forestation species of a coastal sandy land

1. Forestry College，Fujian Agriculture and Forestry University，Fuzhou 350001，Fujian，China;

2. Fujian Academy of Forestry Sciences，Fuzhou 350012，Fujian;

Corresponding author: YE Gong-fu

Received Date: 2011-12-06

Rev Recd Date: 2012-04-08

Publish Date: 2012-12-20

Key words:

Abstract: The objective is to examine and compare the allocation patterns of caloric and elemental contents for three forestation species on coastal sandy land，and to summarize correlations between caloric values and elememtal contents. In July of 2010，three forestation species （Pinus elliottii，Acacia crassicarpa and Casuarina equisetifolia） were sampled from a coastal sandy land in Dongshan County，Fujian Province. All organs of each tree species were harvested. The gross caloric values （GCV） were measured by oxygen bomb calorimeter. Ash，and the contents of C，N，P，K，Ca and Mg were analyzed. The results showed that the mean gross caloric values and the mean ash free caloric values decreased in the following order：P. elliottii （20.96 kJg－1，21.41 kJg－1）A. crassicarpa （20.97 kJg－1，21.35 kJg－1）＞C. equisetifolia （20.18 kJg－1，20.69 kJg－1）. The mean C content in P. elliottii （491.548 gkg－1） was higher than in A. crassicarpa （471.773 gkg－1） and C. equisetifolia （460.042 gkg－1）. The N，P，K，Ca，and Mg content in different organs of these three species were as follows：leaves＞branches＞barks＞roots＞stems. The mean content of N，P，K，Ca，and Mg of A. crassicarpa were the highest，then was C. equisetifolia，P. elliottii was the lowest. Gross caloric value was significantly correlated with Mg content （r =0.600，P ＜ 0.05） and with content of N （r = 0.641，P ＜ 0.01），P （r = 0.879，P ＜ 0.01），and K （r = 0.726，P ＜ 0.01）. Ash content was significantly correlated with P content （r = 0.673，P ＜ 0.01） and was significantly correlated with content of K （r = 0.524，P ＜ 0.05），Ca （r = 0.523，P ＜ 0.05），and Mg （r = 0.639，P ＜ 0.05）. Compare to C. equisetifolia，P. elliottii had the highest carbon content and the lowest elemental content，meanwhile，A. crassicarpa could fixed nitrogen through rhizobium to produce fertilizers and improve soil. So P. elliottii and A. crassicarpa can be used as alternative tree species in coastai sandy land.［Ch，4 tab. 15 ref.］

Caloric values and correlations of nutrient elements in three forestation species of a coastal sandy land

doi: 10.11833/j.issn.2095-0756.2012.06.005

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views