Results 41 to 50 of about 9,010 (214)

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

Complex Firms, Controversial Outcomes: Global Evidence on ESG Failures and Remedies

Business Strategy and the Environment, EarlyView.
ABSTRACT We examine whether business complexity increases firms' exposure to negative environmental, social, and governance (ESG) outcomes, specifically ESG controversies, using a global panel of firms from 37 countries over the period 2002–2021.
Abongeh A. Tunyi, Ali Uyar, Nejla Ould Daoud Ellili, Abdullah S. Karaman   +3 more
wiley   +1 more source

Political Appointment of Executives, Green Action and Firm Performance: Evidence From the World Bank Enterprise Survey

Business Strategy and the Environment, EarlyView.
ABSTRACT Environmental sustainability and political influence increasingly shape corporate strategy, yet the link between politically appointed executives and firms' environmental actions remains underexplored. This study investigates whether political appointments to top executive positions influence the adoption of green action initiatives and how ...
Post Raj Pokharel, Munirah Sarhan AlQahtani, Suman Lodh, Monomita Nandy   +3 more
wiley   +1 more source

Costly Signals and Cheap Talk: Measuring the Decoupling of ESG Routinisation and Greenwashing Risk

Business Strategy and the Environment, EarlyView.
ABSTRACT Greenwashing is a systemic challenge to sustainable finance, yet prevailing ESG metrics still tend to equate more disclosure with more sustainability. We develop a dual‐index framework to compare firms' ESG ‘talk’ and ‘walk’ using hard data. An ESG Routinisation Index approximates the costly integration of sustainability into emissions, safety
Giacomo Zatini, Nicola Torricella, Armando della Porta   +2 more
wiley   +1 more source

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

Effect of perforated foil and polypropylene fibre covers on assimilation leaf area of early potato cultivars

Plant, Soil and Environment, 2007
This paper presents the results of a three-year research on the effect of perforated polyethylene foil and polypropylene fibre covering at various lengths of plant cover period (2 and 3 weeks after plant emergence) on the assimilation leaf area of early ...
W. Wadas, E. Kosterna
doaj   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

Seasonal Spatial Population Density Distribution Dynamics of Lynx and Ungulate Prey in Cold‐Temperate Coniferous Forests 寒温带针叶林猞猁和有蹄类猎物种群密度空间分布的季节性动态研究

Integrative Conservation, EarlyView.
This study used camera trap data from 6 years between 2016 and 2021 and generalized linear mixed models to explore the factors that influence the spatial density distribution of lynx and its prey populations in warm and cold seasons in Inner Mongolia Hanma National Nature Reserve, China.
Wentao Zhang, Heng Bao, Chenbing Chu, Hualin Du, Jian Tong, Penghui Zhai, Weihua Zhang, Yang Li, Kun Yang, Xuankai Liang, Nathan James Roberts, Guangshun Jiang   +11 more
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

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