Accurate extraction of urban green space is critical for preserving ecological balance and enhancing life quality. However, due to the complex morphology (e.g., different sizes shapes), it still challenging extract effectively from high-resolution image. To address this issue, we proposed a novel hybrid method, Multi-scale Feature Fusion Transformer Network (MFFTNet), as new deep learning approach extracting (GF-2) Our method was characterized by two aspects: (1) multi-scale feature fusion...

Rhizosphere microorganisms are closely associated with phosphorus (P) uptake in plants and considered potential agents to mitigate P shortage. However, the mechanisms of rhizospheric microbial community assembly under deficiency have yet be elucidated. In this study, bacterial fungal communities rice rhizosphere their mobilization high (+P) low (-P) concentrations were investigated. Bacterial structures significantly different between -P +P treatments. And both P-mobilizing taxa enriched...

Accurate multi-scale object detection in remote sensing images poses a challenge due to the complexity of transferring deep features shallow among objects. Therefore, this study developed multi-feature fusion and attention network (MFANet) based on YOLOX. By reparameterizing backbone, fusing multi-branch convolution mechanisms, optimizing loss function, MFANet strengthened feature extraction objects at different sizes increased accuracy. The ablation experiment was carried out NWPU VHR-10...

Correct detection of floating objects in complex water environments is a challenge because the problems obscuration and dense objects. In view above issues, this paper proposed network called EC-YOLOX by introducing CA (Coordinate Attention) ECA (Efficient Channel mechanism improving loss function to further multi-feature extraction accuracy paper, ablation experiments comparison were conducted on river dataset. The showed that played great role EC-YOLOX, which can reduce miss rate 5.86%...

Characteristics of optical and chemical properties dust aerosol over Beijing their relation were studied in the spring season, 2006 to understand impact anthropogenic on regional climate. Two plumes (DS1 DS2) identified with contrasting physicochemical properties. Strong absorbing at 439 nm was observed, probably due significant proportion iron oxides other than black carbon. The transport pathways dust, concentrations pollutant precursors meteorological conditions main factors affecting...

Abstract Snow is a crucial component of the cryosphere and its has been experiencing significant decline for Northern Hemisphere (NH) (35–90°N) snow cover extent (SCE) in March-April over 1948–2012 period. However, causes this historical are still uncertain. Here, based on Global Land Data Assimilation System version 2.0 (GLDAS) reanalysis reanalyzed climate model simulations that separate different anthropogenic forcings, we attribute changes spring SCE NH to natural forcings using an...

Bacteria is one of the most important drivers straw degradation. However, changes in bacterial community assemblage and straw-decomposing profiles during decomposition are not well understood. Based on cultivation-dependent independent technologies, this study revealed that "common species" greatly contributed to dynamic variation decomposition. Twenty-three functional strains involved were isolated, but only seven detected high-throughput sequencing data. The decomposers, including isolated...

High-spatial-resolution urban buildings play a crucial role in planning, emergency response, and disaster management. However, challenges such as missing building contours due to occlusion problems (occlusion between of different heights obscured by trees), uneven contour extraction mixing edges with other feature elements (roads, vehicles, slow training speed high-resolution image data hinder efficient accurate extraction. To address these issues, we propose semantic segmentation model...

Tectonic geomorphology is an important research area that uses multisource data to quantify the landscape response induced by interaction between tectonic uplift and climate changes. In this study, a comprehensive quantitative analysis using bibliometric scientometrics based on areas, countries, institutions, journals, authors, keywords, citations carried out, which provides exhaustive history of geomorphology, points out hopspots trends in area. A total 2796 papers 110,111 references from...

The comprehensive use of high-resolution remote sensing (HRS) images and deep learning (DL) methods can be used to further accurate urban green space (UGS) mapping. However, in the process UGS segmentation, most current DL focus on improvement model structure ignore spectral information HRS images. In this paper, a multiscale attention feature aggregation network (MAFANet) incorporating engineering was proposed achieve segmentation from (GaoFen-2, GF-2). By constructing new decoder block,...

Entrainment-mixing processes of fog with the surrounding ambient air are extremely intricate and impose significant effects on microphysical radiative properties fog.

One of the highest treelines in world is at 4810 m above sea level on Sajama Volcano central Andes. The climatological cause that exceptionally high treeline position still unclear. Although it has been suggested mass elevation effect (MEE) explains upward shift Altiplano region, magnitude MEE not yet quantified for region. This paper defines as air temperature difference summer same between inner mountains/plateaus (Altiplano) and free atmosphere adjacent lowlands Andean Cordillera. was...

Abstract Temperature extremes have been extensively observed on the Tibetan Plateau (TP), of which dynamics were mostly monitored by traditional trend analysis based linear regression. This method however, is often impacted a quasi‐periodic heterogeneity disturbance in variance, leading to results susceptible extreme outliers. In this study, we conducted comprehensive detection temperature changes using quantile regression TP from 100 weather stations 1979 2019. The use enabled us...

The Rocky Mountains are the highest and most extensive in North America. Their mass-elevation effect (MEE) should be strong responsible for high elevations of treelines interior mountain range. However, MEE has been little known. We calculated temperature difference (ΔT) between inner outer at same elevation defined it as magnitude MEE. Results show a mean ΔT 1.8°C, with occurring Colorado basins southern Wyoming. can modelled three factors: base (MBE), latitude, hygric continentality. model...

Abstract The 100th meridian is a conceptual arid‐humid divide that effectively bisects the continent of United States into humid east and arid west. Here, we examine historical future shifts from atmospheric, hydrologic, agroecological perspectives. We find effective regarding vegetation greenness runoff has been moving toward west with mean shift 0.73° (1982–2015) 2.08° (1961–2010), respectively, suggesting decreased hydrologic aridity in region. For periods, shows persistent westward...

The mountain base elevation, which refers to the initial altitude of a or altitudinal belt, is great significance for study zonality and mass elevation effect. However, fast efficient algorithm automatic extraction still lacking; therefore, new method based on structure modeling calculate proposed Qinling-Daba Mountains (QDM). result shows that 1) structures in different catchments can be divided into six types, namely, pyramid, low-diamond, diamond, inverse hourglass, ellipsoid, each type...

Abstract. Belowground autotrophic respiration (RA) is one of the largest, but highly uncertain carbon flux components in terrestrial ecosystems. It has not been explored globally before and still acted as a “black box” global cycling. Such progress uncertainty motivate development RA dataset understand its spatial temporal pattern, causes responses to future climate change. This study used Random Forest RA's pattern at scale by linking updated field observations from Global Soil Respiration...