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| 半球面影像技术估测三种园林树种的绿量 | |
| 引用本文： | 黎彩敏,黎孟昭,翁殊斐,苏志尧.半球面影像技术估测三种园林树种的绿量[J].北方园艺,2011(19):73-76. |
| 作者姓名： | 黎彩敏 黎孟昭 翁殊斐 苏志尧 |
| 作者单位： | 1. 佛山科学技术学院生命科学学院,广东佛山528000;农业部生态农业重点开放实验室,广东广州510642 2. 华南农业大学林学院,广东广州,510642 3. 农业部生态农业重点开放实验室,广东广州510642;华南农业大学林学院,广东广州510642 |
| 基金项目： | 农业部生态农业重点实验室开放基金资助项目; 华南农业大学校长基金资助项目(2008K019) |
| 摘 要： | 利用半球面影像技术获取高山榕、小叶榕、蒲桃3种园林树种的LAI值,结合各个体树冠投影面积(S)和冠高(H),计算并比较3个绿量测算指标(LAI、LAI×S和LAI×S×H).结果表明:LAI是绿量基本的测度单位,而LAI×S能够较合理地反映3种园林树种种间或种内的绿量差异,可以作为一个绿量的评估指标,以此估计3种园林树种的绿量为小叶榕＞高山榕＞蒲桃.LAI×S×H由于参数较多,容易造成误差,且其数据过于密集,不适宜用于绿量分析.随着半球面影像技术等无损性光学测量技术的发展,最终应用LAI估算绿色植物的绿量会是最可靠的方法. |
| 关 键 词： | 绿量 半球面影像技术 Kruskal-Wallis检验 |
Estimate for Green Quantity of Three Landscape Tree Species Using Hemispherical Photography |
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| LI Cai-min , LI Meng-zhao , WENG Shu-fei , SU Zhi-yao.Estimate for Green Quantity of Three Landscape Tree Species Using Hemispherical Photography[J].Northern Horticulture,2011(19):73-76. | |
| Authors: | LI Cai-min LI Meng-zhao WENG Shu-fei SU Zhi-yao |
| Institution: | LI Cai-min1,2,LI Meng-zhao3,WENG Shu-fei3,SU Zhi-yao2,3(1.School of Life Science,Foshan University,Foshan,Guangdong 528000,2.Key Laboratory of Ecological Agriculture of Ministry of Agriculture,People's Republic of China,Guangzhou,Guangdong 510642,3.College of Forestry,South China Agricultural University,Guangdong 510642) |
| Abstract: | Three green quantity indices,leaf area index(LAI),LAI×S,LAI×S×H,of three landscape tree species were calculated and evaluated on the individual and population scale,with the LAI obtained by digital hemispherical photography technique and the canopy projection area(S)and canopy height(H)measured directly in the field.The results showed that LAI was a basic unit to estimate green quantity and the LAI×S was the most reliable index for reflecting both the interspecific and intraspecific variability of green quantity.The green quantity of three landscape tree species were estimated using the LAI×S,what was Ficus microcarpa>Ficus altissima>Syzygium jambos.The LAI×S×H was inadequate for green quantity analysis for involving comparatively too many interrelated factors,making the data over skew.Along with the development of harmless optics measure technology such as Hemispherical Photography,using the LAI to estimate green quantity would be a most dependable method in future. |
| Keywords: | green quantity hemispherical photography Kruskal-Wallis analysis |
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