北京山区典型林分生长季叶面积指数动态变化
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摘要
叶面积指数为植物冠层表面的物质循环与能量循环提供了结构化的定量信息,是估算植被冠层功能的重要参数,也是生态系统中最重要的结构参数之一。以北京西山实验林场作为研究区域,以研究区域内5种典型林分作为研究对象,对各林分生长季内的叶面积指数进行测量,结果表明:1)不同植物类型叶面积指数表现为乔木林>草本层>灌木林;4种乔木林分类型生长季平均叶面积指数大小排序为栓皮栎林>刺槐林>油松林>侧柏林。2)在整个生长季,4种乔木林分的叶面积指数表现出了一致的变化趋势,均表现为"增大—平稳—减小"的趋势;3)灌木林叶面积指数的变异系数均高于乔木林与草本层,就整个生长季,5种林分的变异系数为灌木林(荆条)>栓皮栎林>刺槐林>侧柏林>油松林。
Leaf area index(LAI) provides structured quantitative information for material and energy cycling on plant canopy surface,and is an important parameter for estimating vegetation canopy function,and also one of the most important structural parameters in ecosystem.In this study,Beijing Xishan experimental forest farm was taken as the research area,and five typical stands in the study area were taken as the research object.The results showed that:(1) the leaf area index of different forest types in growing season was trees>herbaceous plants>shrubs,the average leaf area index of four tree types in growing season was ranked as Quercusvariabilis > Robiniapseudoacacia > Pinustabuliformis > Platycladusorientalis;(2) In the whole growing season,the leaf area index of the four tree stands showed the same trend of change,showing the trend of "increasing-stabilizing-decreasing";(3)the variation coefficient of the leaf area index of shrubs was higher than that of trees and herbaceous plants,and the variation coefficient of the 5 stands was Vitex negundo var.heterophylla > Quercusvariabilis > Robiniapseudoacacia > Platycladusorientalis> Pinustabuliformis;the purpose of the research is to provide reference for forestry management departments and data support for forest management.
Leaf area index(LAI) provides structured quantitative information for material and energy cycling on plant canopy surface,and is an important parameter for estimating vegetation canopy function,and also one of the most important structural parameters in ecosystem.In this study,Beijing Xishan experimental forest farm was taken as the research area,and five typical stands in the study area were taken as the research object.The results showed that:(1) the leaf area index of different forest types in growing season was trees>herbaceous plants>shrubs,the average leaf area index of four tree types in growing season was ranked as Quercusvariabilis > Robiniapseudoacacia > Pinustabuliformis > Platycladusorientalis;(2) In the whole growing season,the leaf area index of the four tree stands showed the same trend of change,showing the trend of "increasing-stabilizing-decreasing";(3)the variation coefficient of the leaf area index of shrubs was higher than that of trees and herbaceous plants,and the variation coefficient of the 5 stands was Vitex negundo var.heterophylla > Quercusvariabilis > Robiniapseudoacacia > Platycladusorientalis> Pinustabuliformis;the purpose of the research is to provide reference for forestry management departments and data support for forest management.
引文
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[10] 刘国顺,李向阳,刘大双,等.利用冠层光谱估测烟草叶面积指数和地上生物量[J].生态学报,2007,27(5):1763-1771.
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[13] 夏天,吴文斌,周清波,等.冬小麦叶面积指数高光谱遥感反演方法对比[J].农业工程学报,2013(3):139-147.
[14] 孙鹏森,刘世荣,刘京涛,等.利用不同分辨率卫星影像的NDVI数据估算叶面积指数(LAI)——以岷江上游为例[J].生态学报,2006,26(11):3826-3834.
[15] 姚延娟,阎广建,王锦地.多光谱多角度遥感数据综合反演叶面积指数方法研究[J].遥感学报,2005,9(2):117-122.
[16] 柳艺博,居为民,陈镜明,等.2000—2010年中国森林叶面积指数时空变化特征[J].科学通报,2012,57(16):1435.
[17] 张继祥,魏钦平,张静,等.利用冠层分析仪测算苹果园叶面积指数及其可靠性分析[J].园艺学报,2010,37(2):185-192.
[18] 李根柱,王贺新,朱教君.辽东次生林区主要阔叶林型叶面积指数季节动态[J].生态学杂志,2008,27(12):2049-2055.
[19] 曾小平,赵平,饶兴权,等.鹤山丘陵3种人工林叶面积指数的测定及其季节变化[J].北京林业大学学报,2008,30(5):33-38.
[20] 童鸿强,王玉杰,王彦辉,等.六盘山叠叠沟华北落叶松人工林叶面积指数的时空变化特征[J].林业科学研究,2011,24(1):13-20.
[2] 关德新,吴家兵,王安志,等.长白山红松针阔叶混交林林冠层叶面积指数模拟分析[J].应用生态学报,2007,18(3):499-503.
[3] 王希群,马履一,贾忠奎,等.叶面积指数的研究和应用进展[J].生态学杂志,2005,24(5):537-541.
[4] 张旭东,蔡焕杰,付玉娟,等.黄土区夏玉米叶面积指数变化规律的研究[J].干旱地区农业研究,2006,24(2):25-29.
[5] 吴晓成,张秋良,臧润国,等.额尔齐斯河天然杨树林叶面积指数及比叶面积的研究[J].西北林学院学报,2009,24(4):10-15.
[6] 王希群,马履一,张永福.北京地区油松、侧柏人工林叶面积指数变化规律[J].生态学杂志,2006,25(12):1486-1489.
[7] 朱高龙,居为民,Jing M.Chen,等.帽儿山地区森林冠层叶面积指数的地面观测与遥感反演[J].应用生态学报,2010,21(8):2117-2124.
[8] 方秀琴,张万昌.叶面积指数(LAI)的遥感定量方法综述[J].国土资源遥感,2003,15(3):58-62.
[9] 唐思凌.半干旱区沙生灌木群落叶面积指数季节变异性研究[D].北京:北京林业大学,2014.
[10] 刘国顺,李向阳,刘大双,等.利用冠层光谱估测烟草叶面积指数和地上生物量[J].生态学报,2007,27(5):1763-1771.
[11] 张万昌,钟山,胡少英.黑河流域叶面积指数(LAI)空间尺度转换[J].生态学报,2008,28(6):2495-2495.
[12] 赵娟,黄文江,张耀鸿,等.冬小麦不同生育时期叶面积指数反演方法[J].光谱学与光谱分析,2013,33(9):2546-2552.
[13] 夏天,吴文斌,周清波,等.冬小麦叶面积指数高光谱遥感反演方法对比[J].农业工程学报,2013(3):139-147.
[14] 孙鹏森,刘世荣,刘京涛,等.利用不同分辨率卫星影像的NDVI数据估算叶面积指数(LAI)——以岷江上游为例[J].生态学报,2006,26(11):3826-3834.
[15] 姚延娟,阎广建,王锦地.多光谱多角度遥感数据综合反演叶面积指数方法研究[J].遥感学报,2005,9(2):117-122.
[16] 柳艺博,居为民,陈镜明,等.2000—2010年中国森林叶面积指数时空变化特征[J].科学通报,2012,57(16):1435.
[17] 张继祥,魏钦平,张静,等.利用冠层分析仪测算苹果园叶面积指数及其可靠性分析[J].园艺学报,2010,37(2):185-192.
[18] 李根柱,王贺新,朱教君.辽东次生林区主要阔叶林型叶面积指数季节动态[J].生态学杂志,2008,27(12):2049-2055.
[19] 曾小平,赵平,饶兴权,等.鹤山丘陵3种人工林叶面积指数的测定及其季节变化[J].北京林业大学学报,2008,30(5):33-38.
[20] 童鸿强,王玉杰,王彦辉,等.六盘山叠叠沟华北落叶松人工林叶面积指数的时空变化特征[J].林业科学研究,2011,24(1):13-20.