Most papers are machine-translated to English; some are originally in English.
Showing 50 of 516 papers in Earth & Space
Gradually achieving common prosperity represents both the pathway and objective of Chinese-style modernization, and counties, as the fundamental units of urban-rural integrated development, hold significant importance for advancing common prosperity. Based on panel data for Ningxia counties from 200…
Promoting high-quality urbanization development in the Yellow River "Ji" character bend metropolitan area constitutes crucial support for establishing a growth pole in the Yellow River basin. This study examines 15 prefecture-level cities within this metropolitan area, constructing an evaluation ind…
Based on three dimensions of population, economy, and space, this study identifies county-level shrinkage types in the farming-pastoral ecotone of northern China from 2000 to 2020 using a shrinkage degree model and multi-index comprehensive evaluation method, and simultaneously employs a Multiscale …
Based on the six-element theory of tourism and utilizing Points of Interest (POI) data from county-level regions in Inner Mongolia, this study examines the spatial distribution characteristics and influencing factors of tourism elements in Inner Mongolia's counties in 2023 through methods including …
Based on the tourism "six elements" theory, applying nearest neighbor index, kernel density analysis, bivariate spatial autocorrelation, Ripley's K function and other spatial analysis methods, an analysis was conducted on the spatial distribution and correlation characteristics of tourism element po…
As the ninth largest industrial cluster in Xinjiang, high-quality development of the tourism economy serves as a leading driver for Xinjiang's modernization. Based on three perspectives—quality, efficiency, and tourist experience—a seven-dimensional measurement system for high-quality tourism econom…
Research on the spatiotemporal evolution of habitat quality in the Tongwei landslide area is of great significance for the ecological sustainable development of Tongwei County and similar regions in Northwest China. First, the Patch-generating Land Use Simulation (PLUS) model was employed to predict…
The Shanxi section of the Yellow River Basin represents a critical ecological barrier zone in China, where forecasting future trade-offs and synergies among ecosystem services is essential for optimized ecosystem management. Accordingly, this study employed system dynamics, a patch-level land use ch…
Natural climate solutions represent a critical strategy for climate change mitigation in the land sector, offering substantial potential for enhancing carbon storage and reducing greenhouse gas emissions. Using a simple empirical model, we quantified the historical carbon sequestration contributions…
Agricultural water pollution management is crucial for alleviating water resource crises and promoting regional sustainable development. Using agricultural grey water footprint intensity (AGWFI), which comprehensively considers both agricultural grey water footprint and economic development level, t…
Plant water use efficiency (WUE) reflects the balance between carbon fixation capacity and water consumption, revealing plant strategies for environmental adaptation. This study examined three pioneer tree species (Pinus tabuliformis, Ulmus pumila, and Robinia pseudoacacia) in reclaimed ecosystems o…
Based on remote sensing and GIS techniques, we obtained the spatiotemporal distribution characteristics of glacier changes and glacier disasters in areas along the China-Tajikistan highway from 2000 to 2021, and conducted an exposure assessment of glacier disasters using the range transformation met…
Under the trend of global warming, extreme climate events have become increasingly frequent on the Loess Plateau. Clarifying the spatiotemporal characteristics of extreme precipitation events is of great significance for regional disaster prevention. Based on daily precipitation data from 111 meteor…
Based on daily temperature data from 38 meteorological stations in Tibet from 1981 to 2023, the new seasonal division method for Tibet is adopted to delineate the four seasons, and the regional variations of climatic seasons, spatiotemporal changes of seasonal onset dates, and seasonal variation tre…
The efficient operation of automated astronomical data processing pipelines relies on precise calibration reference data recommendation mechanisms. Consequently, comprehensive calibration reference data systems have emerged. This paper systematically reviews the calibration reference data recommenda…
During operation, ground-based laser interferometric gravitational wave detectors experience uncontrollable displacements in their internal optical systems due to various noise disturbances. To improve detector sensitivity and enable detection of weak gravitational wave signals, length sensing and c…
In recent years, China has achieved breakthrough progress in the development of infrared detectors. To meet the requirements of astronomical observation, comprehensive testing of all performance metrics relevant to astronomical detection has been conducted on this infrared detector, obtaining import…
The drive motors of radio telescope servo systems exhibit speed mismatch during operation, which, as telescope aperture increases and precision improves, severely impacts the high-precision pointing and tracking control of large-aperture radio telescopes. To reduce speed deviation during servo syste…
As one of the important methods for probing the cosmic reionization epoch, the core objective of low-frequency all-sky total-power experiments is to search for the extremely weak neutral hydrogen 21 cm signal from the cosmic reionization epoch in the all-sky total-power spectrum within the frequency…
High-amplitude delta Scuti variable stars (HADS) are a subclass of delta Scuti pulsating variables, characterized by short pulsation periods, large amplitudes, and single or multiple radial pulsation modes, making them important targets for asteroseismic studies. Using time-series photometric data p…
To date, a total of 72 black hole X-ray transients and their candidates have been detected, of which 19 have received dynamical confirmation. These transients are X-ray binary systems composed of stellar-mass black holes and low-mass stars. Measurements of the fundamental parameters of stellar-mass …
Outflows represent a crucial form of quasar feedback, playing a significant role in understanding the co-evolution of quasars and their host galaxies. We have collected relevant literature on velocity drifts in quasar outflow absorption lines, compiled case data, and conducted comparative analyses o…
Galaxy clusters, as the largest self-gravitating bound systems in the universe, serve not only as laboratories for studying galaxy formation and evolution, but also as precise tracers of the large-scale structure of the universe. This work primarily introduces the observational characteristics, phys…
Mantle convection is a crucial internal process in the evolution of terrestrial planets. This study summarizes the latest research advances on mantle convection in solar system terrestrial planets and large satellites, employing a comparative planetology methodology to address three fundamental ques…
We present a detailed review of the perihelion observational data and near-Earth observation events of active asteroid (3200) Phaethon, analyzing the activity mechanisms near perihelion, particularly those driven by thermal fracturing, water ice, and sodium sublimation. Based on investigations of Ph…
Improving green development welfare is the ultimate goal of green development, and the digital economy exerts a dual effect on regional green development. Based on a systematic analysis of the theoretical mechanisms underlying the impact of the digital economy on green development welfare, this stud…
Accurately identifying the spatial characteristics of ecosystem service supply and demand and delineating ecological management zones are of significant importance for guiding regional ecosystem management and restoration. Focusing on the overall ecosystem of Northwest China and from the perspective…
Tourism ecological resilience is a key indicator for measuring the sustainable development capacity of tourism destinations, and enhancing this resilience is crucial for promoting the long-term viability of the tourism industry. Based on panel data from nine provinces and autonomous regions in the Y…
From a multi-scale perspective encompassing national, natural geographical division, and provincial levels, this study examines 899 ski resorts in China and comprehensively employs spatial analysis techniques such as Voronoi coefficient of variation, kernel density, and geographical detector model t…
Research on charming territorial space within the context of territorial spatial planning represents a vital approach for constructing and perfecting territorial spatial patterns in the new era, and exploring its intrinsic mechanisms and spatial identification pathways holds significant importance f…
Examining the evolutionary trends and obstructive factors of territorial space efficiency in key river basins provides a critical basis for constructing a territorial space pattern characterized by complementary advantages and high-quality development. Taking 97 cities in the Yellow River Basin as t…
As an underdeveloped component of the education system, precise quantification of kindergarten enrollment accessibility helps evaluate the spatial allocation efficiency of preschool education resources. Taking the main urban area of Lanzhou City as a case study, and combining data such as kindergart…
Green development is a key measure for promoting ecological protection and high-quality development in the Yellow River Basin. Taking 81 prefecture-level cities in the Yellow River Basin from 2006 to 2021 as the research objects, this study constructs a comprehensive evaluation index system based on…
In the process of accelerating the construction of a new development pattern and promoting high-quality development, human capital has become a core element of competition between cities. In recent years, the Lanzhou-Xining (Lan-Xi) urban agglomeration has experienced serious population loss and ins…
High-precision research on the spatial distribution of agricultural population is fundamental to constructing a modern agricultural industrial system and holds significant decision-making value for fostering new-quality agricultural productive forces. Based on county-level data from the Seventh Nati…
Food security is the foundation of national development and social stability. Exploring the spatiotemporal evolution of crop planting structures can provide a theoretical basis for ensuring regional food security and promoting sustainable regional agricultural development. Selecting 117 counties (ci…
As an important region for ecological protection and economic development in China, investigating the characteristics of vegetation change under different dry-wet partitions in the Yellow River Basin is crucial for adjusting ecological restoration strategies to cope with potential threats posed by e…
Studies on the spatiotemporal variation characteristics of vegetation cover in Hulunbuir can provide insights for formulating precise vegetation restoration and ecological environmental protection policies, which is beneficial to the ecological civilization construction in Hulunbuir. Using methods s…
The Normalized Difference Vegetation Index (NDVI) is an important indicator for assessing ecological environmental stability. The Northwest Arid Eco-geographical Region of China has a fragile ecological environment, and analyzing the spatiotemporal variation of its NDVI and its driving forces is of …
The loess plains cover approximately 2000.00 km2 of the northern Negev Desert, accounting for about 9% of Israel's total land area. As elsewhere, the loess in the Negev Desert is composed of wind-transported dust and sand particles that have been deposited in sink sites. The loess deposits are chara…
Using high-sensitivity, high-resolution mapping observations of the 12CO (J = 1–0, J is the angular momentum quantum number) molecular line obtained with the 13.7 m millimeter-wave telescope at the Purple Mountain Observatory Qinghai Station, extremely high-velocity gas with a total velocity width o…
Iron low-ionization broad absorption line quasars (Fe Low-ionization Board Absorption Line Quasar, FeLoBALQ) represent one of the rarest subclasses of quasars. The radiation from these objects violently expels surrounding material, forming powerful high-velocity outflows in which low-ionization spec…
To address the problem of low computational efficiency in calculating thermally induced deformation of large reflector antennas, a method for rapidly predicting antenna thermal deformation is proposed. The method first establishes a thermal analysis model for a single antenna panel, then analyzes th…
For the catalog management of large batches of space debris, the correlation matching between wide-area surveillance orbit measurement data and cataloged targets is a prerequisite and key factor. The correlation accuracy rate not only affects normal catalog processing but also influences observation…
Galaxy structural parameters are fundamental to understanding galaxy formation and evolution. Existing galaxy fitting software, such as GALFIT and 2DPHOT, suffer from limitations including slow runtime performance, heavy reliance on manual intervention, and sensitivity to initial values. To circumve…
In response to the current situation of inconsistent conclusions among existing asteroid collision monitoring systems, this study investigates the linear approximation method employed by line of variation collision monitoring systems, concluding that the deviation between the orbital distribution ob…
Within the atmospheric isoplanatic angle, simultaneous measurement of interference fringes from both the scientific target and the tracking target enables microarcsecond-level astrometric precision through precise determination of the optical path difference between the two fringe patterns. For high…
This study defines entropy related to mass ordering in multi-planetary systems and investigates the impact of planetary system dynamical evolution on planetary mass-ordering entropy using Monte Carlo simulations and $N$-body dynamical numerical simulations. The results demonstrate that behaviors suc…
In the hierarchical clustering model of galaxy formation and evolution, interactions and merger processes between galaxies serve as important mechanisms for galaxy mass growth, producing low surface brightness tidal structures around galaxies. Observationally, long exposure times combined with speci…
Employing the standard MIT bag model, we investigate the influence of non-Newtonian gravitational effects on the structure of color-flavor locked phase strange stars. The results demonstrate that the maximum mass of color-flavor locked phase strange stars increases not only with increasing color-sup…
