Ultrahigh Photocatalytic CO₂ Reduction Efficiency and Selectivity Manipulation by Single‐Tungsten‐Atom Oxide at the Atomic Step of TiO₂

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(17)

Published: Feb. 28, 2022

The photocatalytic CO2 reduction reaction is a sustainable route to the direct conversion of greenhouse gases into chemicals without additional energy consumption. Given vast amount gas, numerous efforts have been devoted developing inorganic photocatalysts, e.g., titanium dioxide (TiO2 ), due their stability, low cost, and environmentally friendly properties. However, more efficient TiO2 photocatalyst noble metals highly desirable for reduction, it both difficult urgent produce selectively valuable compounds. Here, novel "single-atom site at atomic step" strategy developed by anchoring single tungsten (W) atom with oxygen-coordination intrinsic steps classic nanoparticles. composition active sites can be controlled tuning W5+ form -O-Ti3+ sites, resulting in significant efficiency 60.6 μmol g-1 h-1 selectivity methane (CH4 ) over carbon monoxide (CO), which exceeds those pristine than one order magnitude. mechanism relies on accurate control single-atom step 22.8% coverage surface subsequent excellent electron-hole separation along favorable adsorption-desorption intermediates sites.

Language: Английский

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The global significance of biodiversity science in China: an overview

National Science Review, Journal Year: 2021, Volume and Issue: unknown

Published: Feb. 19, 2021

Biodiversity science in China has seen rapid growth over recent decades, ranging from baseline biodiversity studies to understanding the processes behind evolution across dynamic regions such as Qinghai-Tibetan Plateau. We review research, including species catalogues; monitoring; origins, distributions, maintenance and threats biodiversity; biodiversity-related ecosystem function services; ecosystems' responses global change. Next, we identify priority topics offer suggestions priorities for future research China. These include (i) ecology biogeography of Plateau surrounding mountains, that subtropical tropical forests China; (ii) marine inland aquatic (iii) effective conservation management maintain synergies between socio-economic development fulfil China's vision becoming an ecological civilization. In addition, propose three strategies: translate advanced into practice conservation; strengthen capacity building application technologies, high-throughput sequencing, genomics remote sensing; expand international collaborations. Based on progress is well positioned become a leader near future.

Language: Английский

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Upward shift and elevational range contractions of subtropical mountain plants in response to climate change

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 783, P. 146896 - 146896

Published: April 5, 2021

Elevational range shifts of mountain species in response to climate change have profound impact on biodiversity. However, current evidence indicates great controversies the direction and magnitude elevational across regions. Here, using historical recent occurrence records 83 plant a subtropical mountain, Mt. Gongga (Sichuan, China), we evaluated changes elevation centroids limits (upper lower) along gradients, explored determinants changes. We found that 63.9% shifted their upward, while 22.9% downward. The centroid elevations size were more strongly correlated with lower than upper ranges. was larger predicted by warming precipitation Our results show complex distributions sizes Gongga, change, traits adaptation all influenced movement. As is one global biodiversity hotspots, contains many threatened species, these findings provide support future conservation planning.

Language: Английский

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Global Protected Areas as refuges for amphibians and reptiles under climate change

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: March 13, 2023

Abstract Protected Areas (PAs) are the cornerstone of biodiversity conservation. Here, we collated distributional data for >14,000 (~70% of) species amphibians and reptiles (herpetofauna) to perform a global assessment conservation effectiveness PAs using distribution models. Our analyses reveal that >91% herpetofauna currently distributed in PAs, this proportion will remain unaltered under future climate change. Indeed, loss species’ ranges be lower inside than outside them. Therefore, effectively protected is predicted increase. However, over 7.8% occur large spatial gaps remain, mainly across tropical subtropical moist broadleaf forests, non-high-income countries. We also predict more 300 amphibian 500 reptile may go extinct change course ongoing century. study highlights importance providing with refuge from change, suggests ways optimize better conserve worldwide.

Language: Английский

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Anthropogenic impacts on Late Holocene land-cover change and floristic biodiversity loss in tropical southeastern Asia

Proceedings of the National Academy of Sciences, Journal Year: 2021, Volume and Issue: 118(40)

Published: Sept. 27, 2021

Significance Palaeoecological analysis reveals that the expansion of rice agriculture in southern China and Southeast Asia around 2,000 y ago caused widespread deforestation biodiversity changes tropical subtropical forests. Tropical forests, with highest level plant diversity concentration endemic species, suffered greater decline arboreal richness than forests temperate areas. In ecosystems, total increased, despite decline, possibly thanks to flourishing herbs an opening landscape. The disappearance Glyptostrobus southeastern provides a case study as how early endangered species by causing losses its natural habitats, prehistoric land-use leaving clear legacy for today’s landscapes compositions.

Language: Английский

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Major advances in studies of the physical geography and living environment of China during the past 70 years and future prospects

Science China Earth Sciences, Journal Year: 2019, Volume and Issue: 62(11), P. 1665 - 1701

Published: Oct. 22, 2019

Language: Английский

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Mountains, climate and niche heterogeneity explain global patterns of fern diversity

Journal of Biogeography, Journal Year: 2021, Volume and Issue: 48(6), P. 1296 - 1308

Published: Feb. 16, 2021

Abstract Aim It is well known that the distribution of species diversity spatially heterogeneous, but understanding factors contributing to this heterogeneity and formation biodiversity hotspots remains a challenge. Here, we seek improve our how historical, ecological evolutionary processes contribute current patterns global fern diversity. Location Worldwide. Taxon Ferns. Methods To evaluate drivers diversity, integrate over 800,000 georeferenced occurrence records nearly 8000 species, time‐calibrated phylogeny seven climate environmental layers. We use these data summarize at resolution 100 × km, identify richness endemism. compare neighbouring non‐hotspot regions provide insight into controlling Results Tropical subtropical mountains harbour disproportionate amount relative land area they occupy; 58% occur in eight principally montane together comprising just 7% Earth’s area. endemism are universally characterized by disproportionately high variation. demonstrate total scales linearly with available space regional scales. Main Conclusions Areas extant reflect areas, especially lower latitudes. Persistence ancient lineages areas long‐term climatic stability helps explain exceptional such as Malesia.

Language: Английский

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Threats, biodiversity drivers and restoration in temperate floodplain forests related to spatial scales

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 854, P. 158743 - 158743

Published: Sept. 13, 2022

Floodplain forests offer a diversity of habitats and resources for very wide range plant animal species. They also many benefits to humankind are considered essential the mitigation effects climate change. Nevertheless, throughout world they suffering most intense anthropogenic pressures so are, all ecosystems, among endangered. Here, we bring together synthesise existing ecological understanding mechanisms underlying high heterogeneity temperate floodplain threatening their biological value due habitat homogenisation. depend on periodic disturbances under which evolved, including fluvial dynamics, traditional management practices activities herbivores. However, have been heavily degraded by change, invasion exotic species, river-flow regulation, landscape fragmentation, eutrophication cessation management. We can now observe two general trends in forests: (1) Due intensive exploitation, more open thus prone spread competitive invasive exotics (2) management, along with modified hydrological conditions, composed species later successional stages (i.e., shade-tolerant mesic) while light-demanding quickly vanishing. Restoration brought about contrasting results when restoration floodplains natural states has problematic. This is likely because interplay between various artificial processes not previously taken into proper consideration. would like draw attention fact that projects or preservation forest ecosystems should combine watercourses other important threats acting at different scales (spread watersheds inappropriate management).

Language: Английский

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Impacts of Quaternary glaciation, geological history and geography on animal species history in continental East Asia: A phylogeographic review

Molecular Ecology, Journal Year: 2023, Volume and Issue: 32(16), P. 4497 - 4514

Published: June 18, 2023

Abstract Continental East Asia has a mild Pleistocene climate and complex recent geological history. Phylogeographic studies of animals over the last 30 years have produced several distinctive patterns. Glaciation refugia are numerous not restricted to any particular regions. Most them localized species‐specific, although large refugia, for example mountains SW China, shared by multiple species refugia‐within‐refugia. Furthermore, postglaciation range expansion events vary greatly in time, scale direction. Large‐scale south‐to‐north post‐LGM expansions few mostly occurred northern Additionally, unique geographic features, including three‐step terrain China arid belt, significant impacts on many histories. Overall, glaciations, particularly LGM, history drastically from nondetectable significant. The least southwestern region most dominant north. Geological play more role shaping than climatic changes. patterns among highly consistent with those plants. Future phylogeographic endeavour should be hypothesis‐driven seek processes that underlie common wide use genomic data allow accurate estimates historical population exploration older beyond Pleistocene.

Language: Английский

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The Influence of Climate Change on the Distribution of Hibiscus mutabilis in China: MaxEnt Model-Based Prediction

Plants, Journal Year: 2024, Volume and Issue: 13(13), P. 1744 - 1744

Published: June 24, 2024

Our study utilized 374 geographical distribution records of H. mutabilis and 19 bioclimatic factors, employing the MaxEnt model Geographic Information System (ArcGIS). The key environmental variables influencing suitable areas were analyzed through comprehensive contribution rate, permutation importance, Pearson correlation coefficient. Based on this analysis, contemporary future their extents predicted. results indicate that limiting factor affecting is precipitation driest month (bio14), with secondary factors being annual (bio12), mean temperature (bio1), range (bio7). Under climate conditions, total area for approximately 2,076,600 km2, primarily concentrated in tropical subtropical regions southeastern China. low-to-medium-emission scenarios (SSP1-2.6, SSP2-4.5), shows a trend first decreasing then increasing compared to current scenario. In contrast, under high-emission (SSP5-8.5), it exhibits decreasing. spatial pattern changes retention rate ranges from 95.28% 99.28%, centers located Hunan Guizhou provinces, showing an overall migration towards west north. These findings suggest possesses certain level adaptability change. However, crucial consider regional drought sudden events practical cultivation introduction processes. our provide scientific basis rational management, conservation, utilization germplasm resources mutabilis.

Language: Английский

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