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High-efficiency management method for eucalyptus citriodora oil forest

A technology of lemon eucalyptus oil and lemon eucalyptus leaf oil, applied in forestry, application, cultivation, etc., can solve the problems of poor oil quality, high afforestation cost, and long rotation period, so as to improve the oil yield and oil quality , economic benefit improvement, and the effect of increasing production

Inactive Publication Date: 2018-07-24
GUANGXI FORESTRY RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems of low biomass, long rotation period, high afforestation cost, low oil yield and poor oil quality of existing lemon eucalyptus for oil due to poor management, and provides a lemon eucalyptus oil forest Efficient business methods

Method used

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  • High-efficiency management method for eucalyptus citriodora oil forest
  • High-efficiency management method for eucalyptus citriodora oil forest
  • High-efficiency management method for eucalyptus citriodora oil forest

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The test site described in this example is located in a town in Wuming District, Nanning City, Guangxi Zhuang Autonomous Region, and is located in the northeast of Wuming District, Nanning City, Guangxi. 108°37, belongs to the subtropical monsoon climate, the annual average temperature in this area is 20-22°C, the annual average sunshine is 1660.1h, the average frost-free period is 333 days, the average relative humidity is 79%, and the average annual rainfall is 1100-1700mm. The soil in this area is fertile , better water conservancy conditions.

[0020] 1. Investigate the harvest period after planting lemon eucalyptus

[0021] The lemon eucalyptus was planted in batches on the test site, and the afforestation time was 1992, 1997, 2002, 2007, 2012, 2014 and 2016, and the growth periods were 25, 20, 15, 10, 5, 3 and 1a, the spacing between plants and rows is 2m×3m, and there is no intercropping. A comparative experiment was adopted, and 10 strains were selected for ea...

Embodiment 2

[0036] The test site described in this example is located in a town in Qingxiu District, Nanning City, Guangxi Zhuang Autonomous Region. It is located in the east of Nanning City, south of the Tropic of Cancer, and is regulated by the marine climate. Frost and no snow, the annual average temperature is 21.7 ℃, and the annual average rainfall is 1300 mm. The rainfall is generally concentrated from April to September, accounting for about 80% of the annual rainfall. The annual average sunshine is 1827 hours.

[0037] In 2007, 100 lemon eucalyptus trees were planted with a row spacing of 2m×3m and no intercropping. In 2012, 5-year-old lemon eucalyptus leaves were collected, and the oil content of fresh lemon eucalyptus leaves and the components of lemon eucalyptus oil were measured. The results are shown in the table below:

[0038]

[0039] The canopy height left when felling in 2012 was 1m from the ground. The lemon eucalyptus was harvested for the second time in 2015, and ...

Embodiment 3

[0043] The test site described in this example is located in a town in Liangqing District, Nanning City, Guangxi Zhuang Autonomous Region. Liangqing District is located in the south-central part of Guangxi, south of Nanning City, and Liangqing District is located in the south of the Tropic of Cancer. The temperature is high and the precipitation is abundant. . It is characterized by long, high temperature and rainy summers, short, warm and dry winters, and a long frost-free period. It belongs to the subtropical monsoon climate zone. The annual average sunshine hours are 1827 hours, and the sunshine percentage is 39%. The annual average temperature is 21.6°C.

[0044] In 2012, 200 lemon eucalyptus trees were planted, with a row spacing of 2m×3m and no intercropping. In 2015, 3-year-old lemon eucalyptus leaves were collected, and the oil content of lemon eucalyptus fresh leaves and the components of lemon eucalyptus oil were measured. The results are shown in the table below: ...

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Abstract

The invention discloses a high-efficiency management method for a eucalyptus citriodora oil forest. The method comprises the following steps: after eucalyptus citriodora is planted, collecting leavesof the eucalyptus citriodora in different growth stages, separately measuring the oil content of the fresh eucalyptus citriodora leaves and ingredients of the eucalyptus citriodora oil, and selectinga period of collecting the eucalyptus citriodora leaves; determining a height away from the ground of a tree crown when the eucalyptus citriodora is cut and an influence of the height on biomass, a ratio of young leaves, a yield of the eucalyptus citriodora oil and the ingredients of the eucalyptus citriodora oil, and selecting a height of the tree crown when felling is performed; and finally, measuring the content of the eucalyptus citriodora oil and main ingredients in the different growth stages, and selecting a harvesting period of the eucalyptus citriodora. The method provided by the invention not only improves the yield and quality of the eucalyptus citriodora oil, but also can shorten a rotation felling period, increase the yield, significantly improve economic benefits, and providean optimal management mode for planting of the eucalyptus citriodora.

Description

technical field [0001] The invention relates to a forestry management method, in particular to a high-efficiency management method for lemon eucalyptus oil forests. Background technique [0002] Eucalyptus Citriodora Hook (Eucalyptus Citriodora Hook) is a plant of the genus Eucalyptus of Myrtaceae (Myrtaceae). , Fujian, Guangdong, and Guangxi are all cultivated and planted. Lemon eucalyptus leaves contain volatile oil, and the oil content of fresh leaves is between 0.8 and 2.12%. The main components of volatile oil are citronellal, new isopulegol, isopulegol, citronella alcohol, citronellyl acetate, β-caryophyllene, etc. Lemon eucalyptus leaf oil has bactericidal, mosquito repellent, anti-oxidative activity, anti-inflammatory and other effects, and is one of the important raw materials in the perfume industry. It can be used to isolate citronellal and geraniol and further synthesize hydroxycitronellal and mint brain, etc., lemon eucalyptus oil can be directly used in the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G23/00
CPCA01G17/005A01G23/00
Inventor 谷瑶周丽珠邓紫宇曾永明杨漓陈健波
Owner GUANGXI FORESTRY RES INST
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