Results 71 to 80 of about 111,531 (241)

Rice yield forecasting models using satellite imagery in Egypt

Egyptian Journal of Remote Sensing and Space Sciences, 2013
Ability to make yield prediction before harvest using satellite remote sensing is important in many aspects of agricultural decision-making. In this study, canopy reflectance band and different band ratios in form of vegetation indices (VI) with leaf ...
N.A. Noureldin, M.A. Aboelghar, H.S. Saudy, A.M. Ali   +3 more
doaj   +1 more source

LaiPen LP 100 - a new device for estimating forest ecosystem leaf area index compared to the etalon: A methodologic case study

Journal of Forest Science, 2018
Fast and precise leaf area index (LAI) estimation of a forest stand is frequently needed for a wide range of ecological studies. In the presented study, we compared side-by-side two instruments for performing LAI estimation (i.e.
Jakub ČERNÝ, Jan KREJZA, Radek POKORNÝ, Pavel BEDNÁŘ   +3 more
doaj   +1 more source

Specific leaf area and leaf area index in developing stands of Fagus sylvatica L. and Picea abies Karst [PDF]

, 2016
European beech (Fagus sylvatica L.) and Norway spruce (Picea abies Karst.) are two of the most ecologically and economically important forest tree species in Europe.
Bosela, Michal, Konopka, Bohdan, Lukac, Martin, Marusak, Robert, Pajtik, Jozef   +4 more
core   +1 more source

Comparison of Vegetation Indices for Leaf Area Index Estimation in Vertical Shoot Positioned Vine Canopies with and without Grenbiule Hail-Protection Netting

Remote Sensing, 2019
Leaf area per unit surface (LAI—leaf area index) is a valuable parameter to assess vine vigour in several applications, including direct mapping of vegetative−reproductive balance (VRB).
Pedro C. Towers, Albert Strever, Carlos Poblete-Echeverría   +2 more
doaj   +1 more source

Estimating Leaf Area Index with Dynamic Leaf Optical Properties

Remote Sensing, 2021
Leaf area index (LAI) plays an important role in models of climate, hydrology, and ecosystem productivity. The physical model-based inversion method is a practical approach for large-scale LAI inversion.
Hu Zhang, Jing Li, Qinhuo Liu, Yadong Dong, Songze Li, Zhaoxing Zhang, Xinran Zhu, Liangyun Liu, Jing Zhao   +8 more
doaj   +1 more source

Estimating leaf area index of the deciduous forest in the Dragonja watershed. Part 2: Results and discussion [PDF]

, 2004
Measurements and estimation of leaf area index (LAI) were carried out in the deciduous forest in the experimental watershed of the Dragonja River. At the same time precise measurements and analysis relevant to single elements of the forest hydrological ...
Šraj, Mojca
core  

Relationship between spring triticale physiological traits and productivity changes as affected by different N rates

Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2017
There is still a lack of knowledge about the physiological traits of spring triticale (x Triticosecale Wittm.) and their relationship with grain yield and protein content under the conditions of the environmental Zone Nemoral 2.
Daiva Janusauskaite, Dalia Feiziene, Virginijus Feiza   +2 more
doaj   +1 more source

Measurement and modelling litter biomass and leaf area index using allometry in a Beech-Hornbeam stand in the mid-elevation of the Hyrcanian region, Iran [PDF]

تحقیقات جنگل و صنوبر ایران, 2014
Litter biomass and leaf area index (LAI) are two important attributes which play crucial roles on the biological processes which impact forest productivity, including photosynthesis, water and nutrient cycles.
Ramin Rahmani, Somayyeh Ghorbani, Masoumeh Naghash Zargaran   +2 more
doaj   +1 more source

Comprehensive ecosystem model-data synthesis using multiple data sets at two temperate forest free-air CO2 enrichment experiments: Model performance at ambient CO2 concentration [PDF]

, 2014
Free-air CO2 enrichment (FACE) experiments provide a remarkable wealth of data which can be used to evaluate and improve terrestrial ecosystem models (TEMs).
Asao, Shinichi, De Kauwe, Martin G., Dietze, Michael, Hanson, Paul J., Hickler, Thomas, Huntingford, Chris, Iversen, Colleen M., Jain, Atul, Lomas, Mark, Lund University., Lund University., Luo, Yiqi, McCarthy, Heather, Medlyn, Belinda E., Norby, Richard J., Oren, Ram, Parton, William J., Prentice, I. Colin, Thornton, Peter E., Walker, Anthony P., Wang, Shusen, Wang, Ying-Ping, Warren, Jeffrey M., Weng, Ensheng, Woodward, F. Ian, Wårlind, David,, Zaehle, Soenke   +26 more
core   +1 more source

Retrieving the Leaf Area Index of Dense and Highly Clumped Moso Bamboo Canopies from Sentinel-2 MSI Data

Remote Sensing
The effects of leaf clumping on leaf area index (LAI, m2·m−2) retrieval have been proved by several studies. For dense and highly clumped Moso bamboo canopies, LAI is usually retrieved using the SAIL-series models that do not account for leaf clumping ...
Weiliang Fan, Jun Wu, Guang Zheng, Qian Zhang, Xiaojun Xu, Huaqiang Du, Mengxiang Zheng, Kexin Zhang, Feng Zhang   +8 more
doaj   +1 more source