雷州半岛桉树不同品种和树龄对磷吸收的影响

赵贵; 丁效东; 王荣萍; 廖新荣; 李淑仪

doi:10.11833/j.issn.2095-0756.2012.03.013

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雷州半岛桉树不同品种和树龄对磷吸收的影响

赵贵 , 丁效东 , 王荣萍 , 廖新荣 , 李淑仪

文章导航 > 浙江农林大学学报 > 2012 > 29(3): 407-411

赵贵, 丁效东, 王荣萍, 廖新荣, 李淑仪. 雷州半岛桉树不同品种和树龄对磷吸收的影响[J]. 浙江农林大学学报, 2012, 29(3): 407-411. doi: 10.11833/j.issn.2095-0756.2012.03.013

引用本文:

ZHAO Gui, DING Xiao-dong, WANG Rong-ping, LIAO Xin-rong, LI Shu-yi. Phosphorus absorption of two different Eucalyptus cultivars at different tree ages in the Leizhou Peninsula[J]. Journal of Zhejiang A&F University, 2012, 29(3): 407-411. doi: 10.11833/j.issn.2095-0756.2012.03.013

Citation:

ZHAO Gui, DING Xiao-dong, WANG Rong-ping, LIAO Xin-rong, LI Shu-yi. Phosphorus absorption of two different Eucalyptus cultivars at different tree ages in the Leizhou Peninsula[J]. Journal of Zhejiang A&F University, 2012, 29(3): 407-411. doi: 10.11833/j.issn.2095-0756.2012.03.013

雷州半岛桉树不同品种和树龄对磷吸收的影响

doi: 10.11833/j.issn.2095-0756.2012.03.013

1.
广东国有雷州林业局，广东遂溪 524348;
2.
广东省生态环境与土壤研究所，广东广州 510650

详细信息

通信作者: 李淑仪

Phosphorus absorption of two different Eucalyptus cultivars at different tree ages in the Leizhou Peninsula

1.
State-owned Leizhou Forest Enterprise，Suixi 524348，Guangdong，China;
2.
Guangdong Institute of Eco-environment and Soil Sciences，Guangzhou 510650，Guangdong，China

More Information

Corresponding author: LI Shu-yi

摘要: 研究雷州半岛2种主要桉树品种刚果12W5（Eucalyptus ABL 12）和尾叶桉U6（Eucalyptus grandis U6）不同树龄不同部位对磷素养分的吸收特征和年际磷需求量。结果表明：1年生刚果12W5和尾叶桉U6磷质量分数没有显著差异，但是1年生后植株磷质量分数前者显著低于后者；幼龄期时磷素主要分布在叶和枝中，随树龄增加树干、树皮和根中磷素有增加的趋势；磷素对不同树龄的桉树干物质积累量有显著影响，2种桉树的干物质量均为树干最大，树叶最小，各器官干物质量排序为：干＞根＞枝＞皮＞叶；从磷效率来看，单位质量磷对刚果12W5干物质量的积累量比对尾叶桉U6干物质量的积累更加显著，表明刚果12W5对磷素需求低于尾叶桉U6。因此，在桉树生产中应注意因树种、因树龄进行磷素的施肥与管理。图4参12
- 森林培育学 /
- 桉树 /
- 品种 /
- 磷素 /
- 吸收
Abstract: To clarify the characteristics of phosphorus uptake and distribution of Eucalyptus species，the effect of different ages on phosphorus （P） demand and absorption for Eucalyptus ABL 12 and Eucalyptus grandis U6 were studied. We selected the one to six years old of the tree randomly，and the one year age tree （P1YR） and more than one year age tree （P1YR） were separated as the two compared communities with ten replications. The P concentration of different part was analyzed by Mo-Sb colorimetry. Results showed no difference in P concentration between Eucalyptus ABL 12 and E. grandis U6 at one year of age （P1YR）. However，for that of more than one year of age （P1YR），P concentration of Eucalyptus ABL 12 was significantly lower than that of E. grandis U6（P＜0.05）. For the young Eucalyptus tree，P was mainly distributed in leaves and branches with increases in the trunk，tree bark，and roots as the tree aged. Also，P concentration significantly （P＜0.05） affected dry matter accumulation，for the both species of the Eucalyptus trees，the order of accumulated dry matter showed as trunk ＞ roots ＞ branches ＞ tree bark ＞ leaves. According to P efficiency，dry matter accumulation per kg of P showed Eucalyptus ABL 12 ＞ E. grandis U6，meaning less P was required for Eucalyptus ABL 12. Therefore，P fertilizer application and management for Eucalyptus should take into consideration different varieties and different tree ages.［Ch，4 fig. 12 ref.］
- silviculture /
- Eucalyptus /
- variety /
- phosphorus /
- uptake

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雷州半岛桉树不同品种和树龄对磷吸收的影响

doi: 10.11833/j.issn.2095-0756.2012.03.013

1. 广东国有雷州林业局，广东遂溪 524348;

2. 广东省生态环境与土壤研究所，广东广州 510650

通信作者: 李淑仪

收稿日期: 2011-08-01
修回日期: 2011-10-24
刊出日期: 2012-06-20

关键词:

森林培育学 /
桉树 /
品种 /
磷素 /
吸收

摘要: 研究雷州半岛2种主要桉树品种刚果12W5（Eucalyptus ABL 12）和尾叶桉U6（Eucalyptus grandis U6）不同树龄不同部位对磷素养分的吸收特征和年际磷需求量。结果表明：1年生刚果12W5和尾叶桉U6磷质量分数没有显著差异，但是1年生后植株磷质量分数前者显著低于后者；幼龄期时磷素主要分布在叶和枝中，随树龄增加树干、树皮和根中磷素有增加的趋势；磷素对不同树龄的桉树干物质积累量有显著影响，2种桉树的干物质量均为树干最大，树叶最小，各器官干物质量排序为：干＞根＞枝＞皮＞叶；从磷效率来看，单位质量磷对刚果12W5干物质量的积累量比对尾叶桉U6干物质量的积累更加显著，表明刚果12W5对磷素需求低于尾叶桉U6。因此，在桉树生产中应注意因树种、因树龄进行磷素的施肥与管理。图4参12

English Abstract

Phosphorus absorption of two different Eucalyptus cultivars at different tree ages in the Leizhou Peninsula

1. State-owned Leizhou Forest Enterprise，Suixi 524348，Guangdong，China;

2. Guangdong Institute of Eco-environment and Soil Sciences，Guangzhou 510650，Guangdong，China

Corresponding author: LI Shu-yi

Received Date: 2011-08-01
Rev Recd Date: 2011-10-24
Publish Date: 2012-06-20

Keywords:

Abstract: To clarify the characteristics of phosphorus uptake and distribution of Eucalyptus species，the effect of different ages on phosphorus （P） demand and absorption for Eucalyptus ABL 12 and Eucalyptus grandis U6 were studied. We selected the one to six years old of the tree randomly，and the one year age tree （P1YR） and more than one year age tree （P1YR） were separated as the two compared communities with ten replications. The P concentration of different part was analyzed by Mo-Sb colorimetry. Results showed no difference in P concentration between Eucalyptus ABL 12 and E. grandis U6 at one year of age （P1YR）. However，for that of more than one year of age （P1YR），P concentration of Eucalyptus ABL 12 was significantly lower than that of E. grandis U6（P＜0.05）. For the young Eucalyptus tree，P was mainly distributed in leaves and branches with increases in the trunk，tree bark，and roots as the tree aged. Also，P concentration significantly （P＜0.05） affected dry matter accumulation，for the both species of the Eucalyptus trees，the order of accumulated dry matter showed as trunk ＞ roots ＞ branches ＞ tree bark ＞ leaves. According to P efficiency，dry matter accumulation per kg of P showed Eucalyptus ABL 12 ＞ E. grandis U6，meaning less P was required for Eucalyptus ABL 12. Therefore，P fertilizer application and management for Eucalyptus should take into consideration different varieties and different tree ages.［Ch，4 fig. 12 ref.］

引用本文: