| 灵石山米槠(Castanopsis carlessi)林优势种群不同年龄叶片SPAD值的差异及其与叶绿素、氮含量的关系 |
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| 引用本文： | 王英姿,洪伟,吴承祯,林晗,范海兰,陈灿,李键.灵石山米槠(Castanopsis carlessi)林优势种群不同年龄叶片SPAD值的差异及其与叶绿素、氮含量的关系[J].林业研究,2009,20(4):362-366. |
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| 作者姓名： | 王英姿 洪伟 吴承祯 林晗 范海兰 陈灿 李键 |
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| 作者单位： | 福建农林大学森林生态研究所；福建省高校森林生态系统过程与经营重点实验室,南方森林资源与环境工程技术研究中心,福建福州350002 |
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| 摘 要： | 采用便携式叶绿素仪SPAD-502对灵石山米槠林不同海拔优势种群不同年龄叶片的SPAD值进行野外测定,分别对各海拔不同年龄不同优势种以及各年龄不同海拔不同优势种的叶片SPAD值进行差异性分析,结果表明,灵石山米槠林优势种群叶片SPAD值存在叶龄、种间以及海拔梯度问的差异。对不同海拔米槠林优势种群不同年龄叶片SPAD值与室内分光光度法测定的叶绿素含量以及叶片氮含量进行相关分析,结果表明,SPAD值与叶片单位面积叶绿素及氮含量有显著的相关性。SPAD值是叶绿素含量的真实反映,利用叶绿素仪SPAD-502可以快速有效的诊断种群氮素营养状况。
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| 关 键 词： | 优势种群 米槠林 叶绿素计 叶绿素 森林氮养分 比叶面积 灵石山 |
| 收稿时间： | 26 August 2008 |
Variation of SPAD values in uneven-aged leaves of different dominant species in Castanopsis carlessi forest in Lingshishan National Forest Park |
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| Ying-zi Wang,Wei Hong,Cheng-zhen Wu,Han Lin,Hai-lan Fan,Can Chen,Jian Li.Variation of SPAD values in uneven-aged leaves of different dominant species in Castanopsis carlessi forest in Lingshishan National Forest Park[J].Journal of Forestry Research,2009,20(4):362-366. |
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| Authors: | Ying-zi Wang Wei Hong Cheng-zhen Wu Han Lin Hai-lan Fan Can Chen Jian Li |
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| Institution: | (1) Agricultural Science Center at Farmington, New Mexico State University, P.O. Box 1018, Farmington, NM 87499, USA;(2) Department of Plant and Environmental Sciences, New Mexico State University, Box 30003, MSC 3Q, Las Cruces, NM 88003-8003, USA;(3) Director of Application Engineering and Education, Lindsay Corporation, 2222 N. 111th St., Omaha, NE 68164, USA;(4) Rangeland Management Specialist, USDA-NRCS, 804 W. 12th St., Alturas, CA 96101-3132, USA |
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| Abstract: | The greenness (SPAD) of uneven-aged leaves of dominant species in the Castanopsis carlessi forest at different altitude gradients in Lingshishan National Forest Park, Fujian Province, China were measured by using
portable chlorophyll meter SPAD-502. In addition, the correlation between SPAD value and the concentration of chlorophyll
and foliar nitrogen was also investigated. Significant variations in SPAD values were found between the uneven-aged leaves
of different dominant species and different altitude gradients. Regression analysis showed that SPAD value was significantly
correlated with the concentration of chlorophyll and the content of foliar nitrogen, indicating that SPAD value could be indicators
for foliar chlorophyll and nitrogen. It is suggested that SPAD meter is a useful tool for forest assessments in decision-making
and operational nutrient management programs. |
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| Keywords: | Castanopsis carlessi forest chlorophyll content chlorophyll meter dominant population forest nutrient of nitrogen Lingshishan specific leaf area |
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