Results 61 to 70 of about 8,582 (258)

Parsing the Relative Contributions of Leaf and Canopy Traits in Airborne Spectrometer Measurements

Remote Sensing
Forest canopy near-infrared reflectance and mass-based canopy nitrogen concentration (canopy %N) have been shown to be positively correlated. While the mechanisms underpinning this relationship remain unresolved, the broad range of wavelengths involved ...
Franklin B. Sullivan, Jack H. Hastings, Scott V. Ollinger, Andrew Ouimette, Andrew D. Richardson, Michael Palace   +5 more
doaj   +1 more source

Towards Water, Food and Energy Security: The Global Challenges and Possible Solutions for a Holistic Vision of Sustainability

Irrigation and Drainage, EarlyView.
ABSTRACT This invited paper gives an overview of the challenges the world is facing and offers a possible solution for water and food security within the holistic integrated concept of the water–energy–food (WEF) nexus. The paper summarizes the experience the author gained through working on various research projects at national and international ...
Ragab Ragab
wiley   +1 more source

A comparison of optical and direct methods for monitoring the seasonal dynamics of leaf area index in deciduous forests

Silva Fennica, 2001
During the 1996 growing season the seasonal dynamics of the Leaf Area Index (LAI) were determined by 3 different methods in two forest types: a mixed oak (Quercus robur L.) – beech (Fagus sylvatica L.) stand and an ash dominated (Fraxinus excelsior L.)
Mussche, Sylvie, Samson, Roeland, Nachtergale, Lieven, De Schrijver, An, Lemeur, Raoul, Lust, Noël   +5 more
doaj   +1 more source

Impact of Irrigation Scheduling on Corn Yield and Water Balance in Sandy Soils of Central Minnesota Using the EPIC Model.

Irrigation and Drainage, EarlyView.
ABSTRACT Efficient irrigation scheduling is critical in sandy soils to achieve optimum yield and maximum net benefit with minimum environmental concerns. The Environmental Policy Integrated Climate (EPIC) model was used to study the impacts of autoirrigation of corn on crop yield and soil water balance during 2019–2021 at −300 and −450 kPa for loamy ...
Muhammad Tahir, Vasudha Sharma, Gurparteet Singh, David J. Mulla   +3 more
wiley   +1 more source

Multi-Crop Green LAI Estimation with a New Simple Sentinel-2 LAI Index (SeLI)

Sensors, 2019
The spatial quantification of green leaf area index (LAIgreen), the total green photosynthetically active leaf area per ground area, is a crucial biophysical variable for agroecosystem monitoring.
Nieves Pasqualotto, Jesús Delegido, Shari Van Wittenberghe, Michele Rinaldi, José Moreno   +4 more
doaj   +1 more source

Phytochemical content, antioxidant and antibacterial properties of Typhonium flagelliforme cultivated via soil and hydroponic methods

JSFA reports, EarlyView.
Abstract Background Typhonium flagelliforme is a medicinal herb in the Araceae family, widely distributed in Southeast Asia. This study aimed to evaluate the effects of hydroponic and soil‐based cultivation systems on the phytochemical content and bioactivity of T. flagelliforme. Results Using liquid chromatography‐mass spectrometry (LC‐MS) analysis, 9
Yen Ning Lee, Norsharina Md Saad, Siti Rokhiyah Ahmad Usuldin, Seetha Jaganathan King, Wee Sim Choo   +4 more
wiley   +1 more source

Wildfires' Cost for Societal Welfare: Economic Evaluation of Forestry Ecosystem Services Losses in Southern Italy

Land Degradation &Development, EarlyView.
ABSTRACT Forest ecosystem services (ESs) are garnering increasing public attention as awareness grows regarding society's fundamental dependence on them for well‐being. Forest fires, one of the major disturbances of ESs, are becoming more frequent and destructive, exacerbated in part by climate change.
Emanuele Spada, Giacomo Falcone, Salvatore Praticò, Maria Carmela Benedetto, Giovanni Gulisano, Nathalie Iofrida, Anna Irene De Luca   +6 more
wiley   +1 more source

Ground-based estimation of leaf area index and vertical distribution of leaf area density in a Betula ermanii forest

Silva Fennica, 2009
We developed a ground-based method for estimating leaf area index (LAI) and vertical distribution of leaf area density (LAD) for two Betula ermanii plots, combining an allometric method for tree leaf area with the MacArthur–Horn (MH) method using a ...
Sumida, Akihiro, Nakai, Taro, Yamada, Masahito, Ono, Kiyomi, Uemura, Shigeru, Hara, Toshihiko   +5 more
doaj   +1 more source

Continuous Leaf Area Index (LAI) Observation in Forests: Validation, Application, and Improvement of LAI-NOS

Forests
The leaf area index (LAI) is one of the core parameters reflecting the growth status of vegetation. The continuous long-term observation of the LAI is key when assessing the dynamic changes in the energy exchange of ecosystems and the vegetation’s response indicators to climate change.
Zhentao Gao, Yunping Chen, Zhengjian Zhang, Tianxin Duan, Juncheng Chen, Ainong Li   +5 more
openaire   +1 more source

Oreocharis konkakinhensis (Gesneriaceae) sp. nov. from the Central Highlands, Vietnam

Nordic Journal of Botany, EarlyView.
Oreocharis konkakinhensis, a new species of Gesneriaceae, is described and illustrated from the Central Highlands, Vietnam. The new species is morphologically most similar to Oreocharis phuongii, a recently described species from central Vietnam. However, it clearly differs from the latter by having stems without stolons, subulate bracts, yellow inner ...
Thi Thanh Dat Pham, Thao Thi Hoang, Ngan Thi Lu, Thanh Tam Ho, Fang Wen, Yu Ito, Truong Van Do   +6 more
wiley   +1 more source