INTERCOMPARISON OF INSTRUMENTS FOR MEASURING LEAF AREA INDEX OVER RICE

被引：0

作者：

Campos-Tabemer, M. ^{[1
]}

Garcia-Haro, F. J. ^{[1
]}

Confalonieri, R. ^{[2
]}

Martinez, B. ^{[1
]}

Moreno, A. ^{[1
]}

Sanchez-Ruiz, S. ^{[1
]}

Gilabert, M. A. ^{[1
]}

Camacho, F. ^{[3
]}

Boschetti, M. ^{[4
]}

Busetto, L. ^{[4
]}

机构：

[1] Univ Valencia, Dept Earth Phys & Thermodynam, E-46100 Burjassot, Spain

[2] Univ Milan, Dept Agr & Environm Sci Prod, Cassandra Lab, Landscape,Agroenergy, Milan, Italy

[3] Parc Cient Univ Valencia, EOLAB, Paterna, Spain

[4] CNR, IREA, Inst Electromagnet Sensing Environm, I-20133 Milan, Italy

来源：

2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2015年

关键词：

Vegetation; Leaf Area Index (LAI); rice; smartphone; DIGITAL HEMISPHERICAL PHOTOGRAPHY; LAI; VALIDATION; ACCUPAR; APP;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Leaf area index (LAI) is a key biophysical parameter used to determine foliage cover and crop growth in environmental studies in order to assess crop yield. LAI estimates can be classified as direct or indirect methods. Direct methods are destructive, time consuming, and difficult to apply over large fields. Indirect methods are non-destructive and cost-effective due to its portability, accuracy and repeatability. In this study, we compare indirect LAI estimates acquired from two classical instruments such as LAI-2000 and digital cameras for hemispherical photography, with LAI estimates acquired with a smart app (PocketLAI) installed on a mobile smartphone. In this work it is shown that LAI estimates obtained with the classical instruments and with a smartphone are well correlated. Consequently, results presented in this work allow considering PocketLAI as a powerful alternative to the classical instruments for LAI monitoring during field campaigns.

引用

页码：3389 / 3392

页数：4

共 50 条

[1] Optical instruments for measuring leaf area index in low vegetation: Application in Arctic ecosystems
van Wijk, MT
Williams, M
[J]. ECOLOGICAL APPLICATIONS, 2005, 15 (04) : 1462 - 1470
[2] Relationship between tillering and leaf area index: quantifying critical leaf area index for tillering in rice
Zhong, X
Peng, S
Sheehy, JE
Visperas, RM
Liu, H
[J]. JOURNAL OF AGRICULTURAL SCIENCE, 2002, 138 : 269 - 279
[3] COSTS OF MEASURING LEAF-AREA INDEX OF CORN
DAUGHTRY, CST
HOLLINGER, SE
[J]. AGRONOMY JOURNAL, 1984, 76 (05) : 836 - 841
[4] Measuring leaf area index in rubber plantations - a challenge
Cotter, Marc
Asch, Folkard
Hilger, Thomas
Rajaona, Arisoa
Schappert, Alexandra
Stuerz, Sabine
Yang, Xueqing
[J]. ECOLOGICAL INDICATORS, 2017, 82 : 357 - 366
[5] A SIMPLE METHOD FOR MEASURING LEAF-AREA IN RICE PLANTS
KAWASHIMA, C
HIRANO, T
[J]. JAPANESE JOURNAL OF CROP SCIENCE, 1982, 51 (03) : 393 - 394
[6] Estimation of Leaf Area Index and Foliage Area Index of Rice using an Indirect Gravimetric Method
Aschonitis, V. G.
Papamichail, D. M.
Lithourgidis, A.
Fano, E. A.
[J]. COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 2014, 45 (13) : 1726 - 1740
[7] Effects of leaf N concentration and leaf area index on determining rice tillering
[J]. Chinese Rice Research Newsletter, 1999, (03) : 8 - 9
[8] Vegetation index response to leaf area index and fractional vegetated area over cotton
Mauget, SA
Upchurch, DR
[J]. IGARSS 2000: IEEE 2000 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOL I - VI, PROCEEDINGS, 2000, : 372 - 374
[9] New Vegetation Index and Its Application in Estimating Leaf Area Index of Rice
Wang Fu-min
Huang Jing-feng
Tang Yan-lin
Wang Xiu-zhen
[J]. RICE SCIENCE, 2007, 14 (03) : 195 - 203
[10] Evaluation and Intercomparison of MODIS and GEOV1 Global Leaf Area Index Products over Four Sites in North China
Li, Zhenwang
Tang, Huan
Zhang, Baohui
Yang, Guixia
Xin, Xiaoping
[J]. SENSORS, 2015, 15 (03) : 6196 - 6216

← 1 2 3 4 5 →