Mapping oak wilt disease from space using land surface phenology

Remote Sensing of Environment, Journal Year: 2023, Volume and Issue: 298, P. 113794 - 113794

Published: Sept. 5, 2023

Language: Английский

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Canopy Height Mapping for Plantations in Nigeria Using GEDI, Landsat, and Sentinel-2

Remote Sensing, Journal Year: 2023, Volume and Issue: 15(21), P. 5162 - 5162

Published: Oct. 29, 2023

Canopy height data from the Global Ecosystem Dynamics Investigation (GEDI) mission has powered development of global forest products, but these and products have not been validated in non-forest tree plantation settings. In this study, we collected field observations canopy heights throughout oil palm plantations Nigeria evaluated performance existing map (CHM) as well a local model trained on GEDI various Landsat Sentinel-2 feature combinations. We found that CHMs fared poorly region, with mean absolute errors (MAE) 4.2–6.2 m. However, locally models performed (MAE = 2.5 m), indicating using optical satellite can still be effective, even region relatively sparse coverage. addition to improved overall performance, was especially effective at reducing for short (<5 m) trees, where struggle capture height.

Language: Английский

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Land-Use Decisions Have Substantial Air Quality Health Effects

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 58(1), P. 381 - 390

Published: Dec. 15, 2023

Understanding how best to use limited land without compromising food security, health, and beneficial ecosystem functions is a critical challenge of our time. Ecosystem service assessments increasingly inform land-use decisions but seldom include the effects on air quality, largest environmental health risk. Here, we estimate value quality potential policies projected trends in United States, alongside carbon sequestration economic returns land, until 2051. We show that are first-order importance decisions, often larger than combined. When properly accounted for, appeared shown be detrimental vice versa. Land-use-driven impacts largely from agricultural emissions biogenic forest emissions, although incentives for reduced deforestation remain overall. Without evaluating unable determine whether make us better or worse off.

Language: Английский

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On the value of "God" and thus of Nature: Ethicality, meaningfulness, and usefulness of monetary valuation of ecosystem services and natural capital.

Environmental and Sustainability Indicators, Journal Year: 2024, Volume and Issue: 23, P. 100458 - 100458

Published: Aug. 14, 2024

Language: Английский

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California’s native trees and their use in the urban forest

Urban forestry & urban greening, Journal Year: 2023, Volume and Issue: 89, P. 128125 - 128125

Published: Oct. 26, 2023

California's urban forest is composed of both native and non-native species. These trees improve the quality life residents mitigate effects climate change by buffering local microclimates. A species' status often defined at scale state's political boundaries, which doesn't reflect its actual range. Here we define list 95 tree species to California, create digital range maps for each species, provide lists every city in analyze trends areas. We found that areas have relatively few are within a given city's boundaries. Even though non-natives outnumber natives all California cities, opportunities more diversity slim as most cities less than four aren't already growing trees. face hotter drier future, threatening existing forests benefits they residents. explore different options selection based on goal healthy resilient into future.

Language: Английский

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Quantifying Endangerment Value: a Promising Tool to Support Curation Decisions

Sibbaldia The International Journal Of Botanic Garden Horticulture, Journal Year: 2023, Volume and Issue: 22

Published: May 25, 2023

Botanic garden collections are increasingly seeking to quantify and improve the value of their for science, horticulture, conservation other uses. Quantifying a collection depends on mission institution. Many botanic gardens prioritising rare threatened species towards preventing plant extinctions. In doing so, must make decisions about which plants should remain, be replaced or added collections, how allocate staff resources care individual plants, while considering funding space limits. So, can curators biggest impact conserving species? We present promising method quantitatively assess might higher lower priority an ex situ collection, using what we term ‘endangerment value’ – extinction. apply this four genera high importance at The Morton Arboretum showcase advantages approach as well pitfalls. found useful setting, but note that inclusion exclusion different data they weighted impacts ranking important lesson any prioritisation method. hope will inspire help evaluate current future endangerment set priorities maintaining growing globally.

Language: Английский

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Will “Tall Oaks from Little Acorns Grow”? White Oak (Quercus alba) Biology in the Anthropocene

Forests, Journal Year: 2024, Volume and Issue: 15(2), P. 269 - 269

Published: Jan. 30, 2024

Quercus alba L., also known as white oak, eastern or American is a quintessential North species within the oak section (Quercus) of genus Quercus, subgenus Quercus. This plays vital role keystone in forests and significant local regional economies. As long-lived woody perennial covering an extensive natural range, Q. alba’s biology shaped by myriad adaptations accumulated throughout its history. Populations are crucial repositories genetic, genomic, evolutionary insights, capturing essence successful historical ongoing responses to contemporary environmental challenges Anthropocene. intersection offers exceptional opportunity integrate genomic knowledge with discovery climate-relevant traits, advancing tree improvement, forest ecology, management strategies. review provides comprehensive examination current understanding biology, considering past, present, future research perspectives. It encompasses aspects such distribution, phylogeny, population structure, key adaptive traits cyclical conditions (including water use, reproduction, propagation, growth), well species’ resilience biotic abiotic stressors. Additionally, this highlights state-of-the-art resources available for genus, including alba, showcasing developments genetics, genomics, biotechnology, phenomics tools. overview lays groundwork exploring elucidating principles longevity plants, positioning emerging model species, ideally suited investigating traits.

Language: Английский

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Street Tree Inventory: A Case Study Comparing Systematic Sampling vs. Stratified Systematic Sampling in Piracicaba City, Brazil

Arboriculture & Urban Forestry, Journal Year: 2024, Volume and Issue: 50(5), P. 365 - 390

Published: Aug. 29, 2024

Abstract Background The inventory of street tree populations has acquired new importance due to interest in the provision ecosystem services. That said, this paper aims compare systematic sampling with stratified using different sizes units estimate variables interest: number trees per kilometer sidewalk ( D F ), basal area g mean total height , volume V and species E ). An innovative contribution here is testing alternative density variables. Methods In densely urbanized Piracicaba (Sao Paulo State, Brazil), 90 sets 4 blocks were systematically sampled. They used compose 1, 2, 3, blocks. Stratification was based on percentage cover obtained geoprocessing tools. Only public a circumference at breast greater than or equal 12 cm planted sidewalks avenue medians included. Results effect unit size stratification accuracy, sample size, intensity analyzed. results show that more accurate process, especially for . Conclusions Reductions significant when 2-block used.

Language: Английский

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What Can Be Learnt by a Synoptic Review of Plant Disease Epidemics and Outbreaks Published in 2021

Published: Feb. 23, 2023

A synoptic review of plant disease epidemics and outbreaks was made using two complementary approaches. The first approach involved reviewing scientific literature published in 2021, which quantitative data related to new or were obtained via surveys similar methodologies. second retrieving records added 2021 the CABI Distribution Database, contains over a million global geographic organisms from 50,000 species. retrieved 186 articles, describing studies 62 categories (pathogen species/species complexes) across &gt;40 host species on 6 continents. Pathogen with &gt;5 articles were: Bursaphelenchus xylophilus, Candidatus Liberibacter asiaticus, cassava mosaic viruses, citrus tristeza virus, Erwinia amylovora, Fusarium spp. complexes, oxysporum f. sp. cubense, Magnaporthe oryzae, maize lethal necrosis co-infecting Meloidogyne Pseudomonas syringae pvs, Puccinia striiformis tritici, Xylella fastidiosa, Zymoseptoria tritici. Automated searches Database identified 617 distribution 283 pathogens. further manual these confirmed 15 pathogens reported locations: apple hammerhead viroid, rubbery wood Aphelenchoides besseyi, Biscogniauxia mediterranea, Ca. Colletotrichum siamense, cucurbit chlorotic yellows rhapontici, Erysiphe corylacearum, cubense Tropical Race 4, Globodera rostochiensis, Nothophoma quercina, potato spindle tuber tomato brown rugose fruit virus. Of these, 4 had at least 25% all 2021. We assessed &ndash; virus be actively emerging in/spreading locations. Although three important represented results both our interrogation general dual approaches revealed distinct sets records, little overlap.

Language: Английский

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Mapping oak wilt disease using phenological observations from space

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: May 26, 2023

ABSTRACT Protecting the future of forests relies on our ability to observe changes in forest health. Thus, developing tools for sensing diseases a timely fashion is critical managing threats at broad scales. Oak wilt —a disease caused by pathogenic fungus ( Bretziella fagacearum )— threatening oaks, killing thousands yearly while negatively impacting ecosystem services they provide. Here we propose novel workflow mapping oak targeting temporal progression through symptoms using land surface phenology (LSP) from spaceborne observations. By doing so, hypothesize that phenological pigments and photosynthetic activity trees affected can be tracked LSP metrics derived Chlorophyll/Carotenoid Index (CCI). We used dense time-series observations Sentinel-2 create Analysis Ready Data across Minnesota Wisconsin derive three metrics: value CCI start end growing season, coefficient variation during season. integrate high-resolution airborne imagery multiple locations select pixels n = 3,872) most common tree health conditions: healthy, symptomatic wilt, dead. These were train an iterative Partial Least Square Discriminant (PLSD) model probability (i.e., pixel) one these conditions associated uncertainty. assessed models spatially temporally testing datasets revealing it feasible discriminate among with overall accuracy between 80-82%. Within conditions, suggest spatial variations CCI-derived predict healthily (Area Under Curve (AUC) 0.98), (AUC 0.89), dead 0.94) low false positive rates. The performance was robust different years as well. predictive maps guide local stakeholders locating hotspots ground verification subsequent decision-making treatment. Our results highlight capabilities map their importance monitoring biodiversity large

Language: Английский

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