AN APPROACH FOR INDIRECT DETERMINATION OF LEAF AREA INDEX

被引：6

作者：

Logsdon, S. D. ^{[1
]}

Cambardella, C. A. ^{[1
]}

机构：

[1] ARS, USDA, Natl Lab Agr & Environm, Ames, IA USA

来源：

TRANSACTIONS OF THE ASABE | 2019年 / 62卷 / 03期

关键词：

Ground cover; Plant canopy cover; Plant height; DIGITAL HEMISPHERICAL PHOTOGRAPHY; CANOPY COVERAGE; LAI-2000; SURFACE; ACCUPAR; IMAGE; WHEAT; GRASS; SOIL; LAI;

D O I：

10.13031/trans.13187

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Leaf area index (LAI) is important in crop models, but determination of LAI can be challenging for crops and mixtures of crops. The purpose of this study was to determine LAI indirectly from ground cover (determined from photographic images) and canopy height using defined relationships based on crop coefficients. Images of plant canopies were obtained to estimate the green cover fraction. An equation was derived to determine LAI from ground cover and plant height, and the technique was tested on different crops. For three of the measurement dates, the data were compared to LAI measurements obtained with a LAI-2200 plant canopy analyzer. The trend was the same for the two LAI procedures, but there was some scatter. The photographic technique was adequate for LAI determination.

引用

页码：655 / 659

页数：5

共 50 条

[41] INDIRECT LEAF-AREA INDEX MEASUREMENT AS A TOOL FOR CHARACTERIZING RICE GROWTH AT THE FIELD-SCALE
DOBERMANN, A
PAMPOLINO, MF
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 1995, 26 (9-10) : 1507 - 1523
[42] Estimation of Leaf Area Index in a Typical Northern Tropical Secondary Monsoon Rainforest by Different Indirect Methods
Xie, Xiansheng
Yang, Yuanzheng
Li, Wuzheng
Liao, Nanyan
Pan, Weihu
Su, Hongxin
REMOTE SENSING, 2023, 15 (06)
[43] DIRECT AND INDIRECT ESTIMATES OF LEAF-AREA INDEX (LAI) FOR LODGEPOLE AND LOBLOLLY-PINE STANDS
SAMPSON, DA
ALLEN, HL
TREES-STRUCTURE AND FUNCTION, 1995, 9 (03): : 119 - 122
[44] LEAF AREA DETERMINATION IN CABBAGE
RAO, JV
CURRENT SCIENCE, 1978, 47 (09): : 312 - 313
[45] Comparison of direct and indirect methods for assessing leaf area index across a tropical rain forest landscape
Olivas, Paulo C.
Oberbauer, Steven F.
Clark, David B.
Clark, Deborah A.
Ryan, Michael G.
O'Brien, Joseph J.
Ordonez, Harlyn
AGRICULTURAL AND FOREST METEOROLOGY, 2013, 177 : 110 - 116
[46] Comparison of direct and indirect estimation of leaf area index in mature Norway spruce stands of eastern Germany
Küssner, R
Mosandl, R
CANADIAN JOURNAL OF FOREST RESEARCH, 2000, 30 (03) : 440 - 447
[47] INDIRECT MEASUREMENT OF FOREST LEAF AREA INDEX USING PATH LENGTH MODEL AND MULTISPECTRAL CANOPY IMAGER
Hu, Ronghai
Luo, Jinghui
Yan, Guangjian
Zou, Jie
2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS), 2015, : 1957 - 1960
[48] An empirical approach to estimating leaf area index from multifrequency SAR data
CNR/IROE, Via Panciatichi, Firenze 64-50127, Italy
Int J Remote Sens, 2 (359-364):
[49] Multiscale approach for fusing leaf area index estimates from multiple sensors
Xiao, Zhiqiang
Wang, Jindi
Wari, Huawei
Jiang, Xiaoque
Xu, Kai
REMOTE SENSING AND GIS DATA PROCESSING AND APPLICATIONS; AND INNOVATIVE MULTISPECTRAL TECHNOLOGY AND APPLICATIONS, PTS 1 AND 2, 2007, 6790
[50] An empirical approach to estimating leaf area index from multifrequency SAR data
Paloscia, S
INTERNATIONAL JOURNAL OF REMOTE SENSING, 1998, 19 (02) : 361 - 366

← 1 2 3 4 5 →