Forests, Free Full-Text
Por um escritor misterioso
Last updated 19 março 2025

Thermal dissipation of excess excitation energy is an important photoprotective mechanism that plants have evolved to cope with surplus illumination. However, light-energy-partitioning dynamics in an exotic sand-dune willow (Salix psammophila) commonly used in restoring and/or stabilizing sand lands in northwestern China is largely unknown. In this study, chlorophyll fluorescence (ChlF) of photosystem II (PSII) was continuously monitored in situ in Salix psammophila to investigate plant acclimation processes driven by excessive solar radiation and extreme air temperatures (Ta). As part of a heat-regulation mechanism, energy partitioning is shown to vary with prevailing environmental conditions. In this investigation, energy absorbed during periods of moderate photosynthetically active radiation (PAR < 1200 μmoL·m−2·s−1) was largely allocated towards photochemistry (ΦPSII) with nominal amounts to thermal dissipation through reversible thermal dissipation (ΦNPQr). In extremely high solar radiation (PAR > 1500 μmoL·m−2·s−1) or in a cold temperature (Ta < 0 °C), more energy was dissipated by way of non-regulated thermal energy (Φf,D) and sustained thermal dissipation (ΦNPQs), leading to non-reversible photoinhibition or photodamage. This was mainly as a result of the low utilization and high absorption of light energy by PSII under cold conditions and physiologically-induced vulnerability. It was concluded that Salix psammophila had a clear tolerance to high temperatures and moderate solar radiation, but tended to be more vulnerable to high solar radiation and cold temperature. Based on species sensitivity to extreme environmental conditions, practical application and extension of Salix psammophila for land-restoration purposes should be approached cautiously, especially in high-latitude or high-altitude desert ecosystems commonly affected by events of high solar radiation and cold temperature.

60,000+ Best Forest Photos · 100% Free Download · Pexels Stock Photos

Advance Map 1.95 Download Zip - Colaboratory

Forests, Free Full-Text

Deforestation

The future of Southeast Asia's forests

Share of land covered by forest, 2020
Sylvics Forestry & Nursery

The (Very Slow) Race to Move Forests in Time to Save Them

Review: The Forest app helps you go phone-free by planting trees

Dark Forest Images - Free Download on Freepik

Forests, Free Full-Text

How are forests framed? An analysis of EU forest policy

Do Trees Talk to Each Other?, Science
Recomendado para você
-
Download JackSmith19 março 2025
-
historiajaragua: Game: Jacksmith19 março 2025
-
Jack smith-free Android Game free download in Apk19 março 2025
-
FRIV - Jack Smith / part 119 março 2025
-
Jack Smith - Juega 100% Gratis en19 março 2025
-
friv 100 games APK Download 2023 - Free - 9Apps19 março 2025
-
Jack Smith - part 5 {Friv}19 março 2025
-
The Beauty Of Playing Friv Games, Posts by Mikka Veronique19 março 2025
-
Friv Games App Android के लिए डाउनलोड - 9Apps19 março 2025
-
Simply Nailogical: 100+ Coats of Nail Polish19 março 2025
você pode gostar
-
She Hulk y su episodio más entrañable - Crítica del Episodio 719 março 2025
-
Miku Maekawa - project-imas wiki19 março 2025
-
Every Syphon Filter Game, Ranked19 março 2025
-
These Games Are Too Precious:' Patrick Peterson Calls On NFL To Hire Refs Full-Time - Steelers Depot19 março 2025
-
Carreta do Hospital do Amor oferta exames gratuitos para mulheres19 março 2025
-
Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka II, Is It Wrong to Try to Pick Up Girls in a Dungeon? II Art Board Print for Sale by wazzaah19 março 2025
-
Página 8 Jogo Tabuleiro Cobras Escadas Imagens – Download Grátis no Freepik19 março 2025
-
Duck Life 4 on Steam19 março 2025
-
Shadow Warrior 2 Review19 março 2025
-
Zelda, Metroid and Pikmin 4: Every Trailer Shown at Nintendo Direct - CNET19 março 2025