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Showing 50 of 58 papers in Earth Science

Elevational Distribution Patterns and Assessment of Soil Nutrients in Tianshan Spruce Forests Across Different Regions: Postprint

Xu Dong, Chen Hao, Yeerjiang Baike'tu'erhan, Wang Qiang
2025-09-01 ChinaXiv: chinaxiv-202509.00024 Mixed Source

To investigate the spatial distribution heterogeneity of soil nutrients beneath Tianshan spruce forests and provide a foundational basis for forest health evaluation of Tianshan spruce (Picea schrenkiana var. tian⁃schanica) stands, this study was conducted across four research regions selected along…

Quantification and Spatial Differentiation of Ecosystem Service Values of Tianshan Spruce Forests in Central Tianshan Mountains: Postprint

Sun Yubo, Zhao Shanchao, Wang Yapei, Ma Xiaoli, Chen Yuwen, Huang Xuansheng, Wang Weixia
2025-09-01 ChinaXiv: chinaxiv-202509.00033 Mixed Source

Taking the Tianshan spruce forest in the central Tianshan Mountains as the research object, and based on the functional value method, this study conducted a quantitative visualization analysis of the spatial pattern of ecological service value using the Getis-Ord Gi* hotspot analysis method. The res…

Climatic Characteristics of Hail and Their Influencing Factors in Longdong, 1978–2023: A Postprint

Zhang Kexin, Zhao Yujuan, Li Meiyu
2025-09-01 ChinaXiv: chinaxiv-202509.00035 Mixed Source

Hail represents one of the extreme weather phenomena induced by severe convection, featuring rapid development and substantial hazards, particularly posing a grave threat to the Longdong region where agriculture constitutes the primary economic sector. Against the backdrop of climate warming, in-dep…

Postprint: CMIP6-Based Analysis of Spatiotemporal Characteristics of Extreme Precipitation in the Ili River Basin

Liu Jinghui, Yuan Xushan, Li Yanmin, Li Xinxu
2025-09-01 ChinaXiv: chinaxiv-202509.00039 Mixed Source

Under global warming, the disaster risk posed by extreme precipitation events is increasingly intensifying, posing severe threats to regional socio-economic development and public life and property safety. This study first conducts a spatiotemporal characteristic analysis of eight extreme precipitat…

Occurrence of flash drought in reservoirs in the semi-arid area of the Ceará State, Brazil Postprint

Suellen Teixeira Nobre GONÇALVES, Francisco das Chagas VASCONCELOS JÚNIOR, Cleiton da Silva SILVEIRA, José Micael Ferreira da COSTA, Suellen Teixeira Nobre GONÇALVES
2025-07-17 ChinaXiv: chinaxiv-202507.00331 Mixed Source

Precipitation is scarce in semi-arid areas, which results in serious drought. Occurrence of flash drought is quite often in these areas, and flash drought may also cause significant disasters. However, monitoring flash drought is still weak and remains a challenge. This study aims to identify, evalu…

Postprint: Effects of Different Land Use Types on Soil N2O Flux in the Loess Plateau

Du Jun, Li Guang, Yao Yao, Ma Weiwei, Yuan Jianyu(1,2,3)
2025-07-14 ChinaXiv: chinaxiv-202507.00177 Mixed Source

Nitrous oxide (N2O) is one of the important greenhouse gases in the atmosphere, exerting significant influence on global warming. Land use change is a critical factor affecting N2O emissions, particularly in ecologically fragile semi-arid regions where the underlying mechanisms are more complex. How…

Sustainable Dynamic Changes in Global Crop Virtual Water Trade: A Postprint

Di Yanfeng, Duan Weili, Zhou Yiqi, He Chao
2025-07-14 ChinaXiv: chinaxiv-202507.00184 Mixed Source

Integrating crop irrigation water into the global trade chain and analyzing its sustainability is crucial for ensuring water resources and food security. Constrained by the contradiction between economic benefits and water resource development and utilization, the sustainability of virtual water foo…

Spatiotemporal Variation Patterns and Driving Factors of Evapotranspiration in the Aksu River Basin: A Postprint

Yang Chen, Ma Bin, He Xuemin, Hao Zhe, Ma Yu
2025-07-14 ChinaXiv: chinaxiv-202507.00169 Mixed Source

Evapotranspiration, as a critical component of the water cycle, is essential for water resource regulation and ecological protection, playing a particularly important role in water consumption and redistribution in arid regions. This study takes the Aksu River Basin as the research area, utilizing M…

Spatiotemporal Evolution of Ecological Security Patterns in Longnan City Based on the MSPA-InVEST Model (Postprint)

Li Zhiming, Zhang Guofei, Xing Jie, Yang Lei, Wang Weidong, Cao Juan (1,3)
2025-07-14 ChinaXiv: chinaxiv-202507.00171 Mixed Source

Constructing ecological security patterns and accurately identifying key areas for ecological restoration constitute the prerequisite and guarantee for advancing territorial ecological restoration. As a national key water source conservation area and an ecological security barrier in the upper reach…

Effects of Meso- and Micronutrient Addition on Mineralization Characteristics and Soil Organic Carbon Fractions in Aeolian Sandy Soil: Postprint

Liu Jiayue, Kou Wei, Yuan Jianqiang, Xue Shaoqi, Wang Xudong (1)
2025-07-14 ChinaXiv: chinaxiv-202507.00156

To investigate the mineralization characteristics of organic fertilizer combined with medium and trace elements in aeolian sandy soil and its effects on soil organic carbon fractions, laboratory incubation and field experiments were conducted to examine the decomposition and residual rates of organi…

UAV-Based Multi-Temporal Extraction of Pedicularis kansuensis in Bayinbuluke Grassland Post-Print

Zhang Jiarong, Zhao Jin, Li Haining, Gong Yanming, Liu Yanyan, Lin Jun, Kaihui Li
2025-07-14 ChinaXiv: chinaxiv-202507.00159 Mixed Source

Invasive plants have severely impacted global ecosystem functions and biodiversity. However, existing research primarily focuses on the monitoring and classification of single temporal phases of plants, with relatively few studies on multi-temporal continuous monitoring of key phenological stages, p…

Ecological Management Zoning Based on Water Provisioning Service Supply-Demand Relationships in the Ili River Valley: Postprint

Hu Jiran, Yao Juan, Xiong Changjiang
2025-07-14 ChinaXiv: chinaxiv-202507.00161 Mixed Source

Water supply services underpin the survival and development of human society and are critical for advancing ecological civilization construction and high-quality development of river basins in China. This study takes the Yili River Valley in Xinjiang as the research area, and based on statistical ye…

Distribution Characteristics of Boron in Surface Water and Groundwater and Their Influencing Factors in the Qiemo County Oasis Area (Postprint)

Liu Liang, Dong Jiangwei, Jinlong Zhou, Li Jiang
2025-07-14 ChinaXiv: chinaxiv-202507.00162 Mixed Source

High-boron surface water and groundwater exist in the oasis area of Qiemao County, Xinjiang, seriously affecting residents' health. To preliminarily investigate the hydrochemical characteristics and main sources of boron in the oasis area of Qiemao County, 24 water samples (4 surface water and 20 gr…

Seasonal Variation Characteristics of Precipitation Concentration Degree and Characteristic Quantities in the Yarlung Tsangpo River Basin from 1981 to 2024: Postprint

Du Jun, Jiajia Gao, Chen Tao, Tsewang, Baguo Zhuoma
2025-07-14 ChinaXiv: chinaxiv-202507.00164 Mixed Source

The Precipitation Concentration Index (PCI) effectively characterizes the intra-annual concentration of precipitation and is widely used in related research. Based on monthly precipitation and mean temperature observations from 15 meteorological stations in the Yarlung Tsangpo River (hereinafter ref…

Postprint: Simulation of Soil Water Dynamics under Different Irrigation Regimes in Sandy Loam Cropland in the Middle Reaches of the Heihe River

Li Haochen, Hu Guanglu, Wang Tao, Chen Ning, Li Jianan, Fan Yalun
2025-07-14 ChinaXiv: chinaxiv-202507.00165 Mixed Source

Farmland in arid regions with sandy loam soil is characterized by low fertility, poor water retention, high infiltration losses, and low crop yields. Elucidating the patterns of soil water movement in sandy loam farmland is of great significance for conserving water resources and increasing crop yie…

Postprint: Applicability Assessment of Three Precipitation Data Products over the Eastern Tibetan Plateau

Li Moyu, Dong Shaorui, Guo Yingxiang
2025-07-14 ChinaXiv: chinaxiv-202507.00167 Mixed Source

Daily precipitation data from ground meteorological stations across the eastern Tibetan Plateau in 2022 were selected to evaluate precipitation datasets from the China Meteorological Administration Multi-source Precipitation Analysis System (CMPAS), the China Meteorological Administration Land Data …

Postprint: Spatiotemporal Differentiation Pattern and Driving Factors of County-Level Common Prosperity in Ningxia

Wang Xin, Zheng Fang, He Lingyao, He Haoliang, Hou Ying
2025-07-06 ChinaXiv: chinaxiv-202507.00034

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…

Postprint: Multidimensional Perspective on County-Level Shrinkage Identification and Influencing Factor Analysis in the Agro-Pastoral Ecotone of Northern China

Luo Xiaomei, Wen Qi, Shi Linna, Wu Xinyan, An Fengping, Wang Zhenting
2025-07-06 ChinaXiv: chinaxiv-202507.00036 Mixed Source

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 …

Measurement and Analysis of Influencing Factors for High-Quality Development of the Tourism Economy: A Case Study of Xinjiang (Postprint)

Shi Zhuoda, Yang Hongwei
2025-07-06 ChinaXiv: chinaxiv-202507.00039 Mixed Source

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…

Spatiotemporal Evolution Characteristics of Extreme Precipitation Events in the Loess Plateau from 1960 to 2023: Postprint

Zhang Xinhua, Wenting Zhao, Jiao Juying, Ma Xiaowu, Yang Bo, Ling Qi
2025-07-06 ChinaXiv: chinaxiv-202507.00046 Mixed Source

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…

Spatial Differentiation Patterns and Driving Factors of China's Ski Resorts from a Multi-scale Perspective: Postprint

Wang Peipei, Wang Jiao, Yongmei Cai
2025-06-20 ChinaXiv: chinaxiv-202506.00181 Mixed Source

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…

Study on the Identification and Spatial Optimization Strategies of Dunhuang's Charming Territorial Space Postprint

Chen Tianhao, Fang Haozhou
2025-06-20 ChinaXiv: chinaxiv-202506.00182

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…

Kindergarten Enrollment Accessibility and Influencing Factors in the Main Urban Area of Lanzhou City: A Postprint

Guo Nianfa, Wang Lucang
2025-06-20 ChinaXiv: chinaxiv-202506.00184 Mixed Source

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…

Spatiotemporal Variation of NDVI and Its Driving Forces in the Northwestern Arid Eco-Geographic Region (Postprint)

Song Xiaolong, Li Longtang, Ren Jie, Wu Yue, Wang Peng, Mi Wenbao, Ma Mingde
2025-06-20 ChinaXiv: chinaxiv-202506.00297 Mixed Source

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 …

Multi-Proxy Records of Environmental Change from Lake Sediments in High-Altitude Arid Regions: A Case Study of Aksayqin Lake (Postprint)

Xiang Chaosheng
2022-04-14 ChinaXiv: chinaxiv-202204.00105

Lake sediments in the northwestern Tibetan Plateau preserve rich records of regional climatic and environmental changes, which is of significant importance for revealing variations in the Tibetan Plateau's westerly-monsoon circulation system and their interaction processes. By analyzing environmenta…

Postprint of the Study on Spatial Distribution Patterns of National Forest Parks and Their Influencing Factors

Zhu Lei, Li Yannan
2022-04-13 ChinaXiv: chinaxiv-202204.00109

National Forest Parks constitute one of the important carriers of ecological civilization construction in China. This study investigates National Forest Parks in 1994, 2004, and 2019, comprehensively employing spatial analysis techniques to systematically investigate their spatial distribution patte…

Circulation Classification and Genesis Analysis of Blizzards in Urumqi from 1961 to 2019 (Postprint)

Li Anbei, Wan Yu
2022-04-13 ChinaXiv: chinaxiv-202204.00110

Using daily precipitation data from five national meteorological stations in Urumqi during the snowfall period from 1961–2019, together with NCEP daily four-times 0.25°×0.25° and 1°×1° reanalysis data, this study statistically analyzes the characteristics of snowstorms and large-scale circulation pa…

Optimization of Ecological Water Conveyance Scheduling in the Aksu River Basin for Ecological Restoration (Postprint)

Nie Yan, Guo Yongrui
2022-04-12 ChinaXiv: chinaxiv-202204.00091

Ecological water conveyance scheduling is one of the most effective measures for ecological protection and restoration. Implementing ecological water conveyance holds significant importance for restoring natural ecosystems in arid and semi-arid regions and maintaining the health of oasis ecosystems.…

An Iterated Local Search Algorithm for the Districting Problem

Kong Yunfeng, Kong Yunfeng
2022-03-29 ChinaXiv: chinaxiv-202203.00118

The regionalization problem involves partitioning a specific geographic region into several spatially contiguous zones to satisfy the fundamental principle of minimizing intra-zone differences while maximizing inter-zone differences, and finds wide applications in geography, environmental science, e…

Effects of Different-Aged Abandoned Cropland on Soil Moisture and Species Diversity in the Minqin Qingtu Lake Area (Postprint)

Wang Jia, Tian Qing, Wang Lide
2022-03-28 ChinaXiv: chinaxiv-202203.00108

Using a space-for-time substitution approach, we investigated and analyzed soil moisture dynamics and vegetation succession characteristics across abandoned croplands of varying abandonment ages (1, 2, 4, 8, 13, 20, 30, 40 years and CK) in the Qingtu Lake area of Minqin. The results indicated that: …

Vegetation Cover Dynamics and Their Driving Factors in the Oasis-Desert Ecotone: A Case Study of Cele, Xinjiang (Postprint)

Cao Yongxiang, Mao Donglei, Xue Jie
2022-03-28 ChinaXiv: chinaxiv-202203.00085

The oasis-desert ecotone is an ecological buffer zone between oasis and desert ecosystems, playing a crucial ecological role in maintaining oasis stability and preventing wind erosion. Taking the Cele Oasis-Desert Ecotone as an example, this study selected Landsat remote sensing imagery data, meteor…

Effects of Conservation Tillage on Soil N2O Emissions from Cropland in the Semi-arid Loess Plateau Region (Postprint)

Du Mengyin, Yuan Jianyu, Li Guang
2022-03-28 ChinaXiv: chinaxiv-202203.00087

Nitrous oxide (N2O) is one of the important greenhouse gases in the atmosphere and has attracted considerable attention in the context of global climate warming, with farmland soil being its primary emission source. Among the numerous factors affecting N2O emissions from farmland, tillage practices …

Soil Salinity Accumulation Characteristics During Non-irrigation Season in Long-term Drip-irrigated Cotton Fields (Postprint)

Tan Mingdong, Wang Zhenhua, Wang Yue
2022-03-28 ChinaXiv: chinaxiv-202203.00088

The movement and variation characteristics of soil water and salt during freeze-thaw processes in the non-irrigation season directly affect spring crop irrigation decisions. This study conducted field sampling and monitoring of six cotton field plots with different drip irrigation years in the Xinji…

Postprint of Soil Nutrient and Stoichiometric Characteristics of Russian Olive Shelterbelt in the Kubuqi Desert

Shi Shiling, Xiaomeng Ren, Zhang Xiaowei
2022-03-28 ChinaXiv: chinaxiv-202203.00090

To investigate the soil nutrient and stoichiometric characteristics of Elaeagnus angustifolia shelterbelts on the northeastern edge of the Kubuqi Desert, and to provide a theoretical basis for the sustainable utilization of desert shelterbelts, we selected 30 m × 30 m representative sample plots in …

Variation Characteristics of Soil Extracellular Enzyme Activity and Stoichiometry During Biological Soil Crust Formation on the Loess Plateau (Postprint)

Yao Hongjia, Baorong Wang, An Shaoshan
2022-03-28 ChinaXiv: chinaxiv-202203.00091

Biological soil crusts play crucial roles in enhancing soil resistance to water and wind erosion and improving soil nutrient conditions. Soil extracellular enzyme activity can serve as a microbial indicator of soil biochemical reaction intensity and is of great significance for understanding nutrien…

Snowmelt-Coupled Xin'anjiang Model for Runoff Simulation in Arid Regions: A Postprint

Zhang Meijie, Lü Haishen, Liu Di
2022-03-28 ChinaXiv: chinaxiv-202203.00098

Within the Xiying River basin above the Jiutiaoling Station, daily data from gridded precipitation and air temperature datasets for the period 2011–2018 were utilized to develop a method for correcting anomalous gridded precipitation points through exploration of the precipitation-runoff causal rela…

Postprint: Applicability Assessment of TIGGE Precipitation Forecasts in Arid and Semi-Arid Regions of China

He Chaolu, Lü Haishen
2022-03-28 ChinaXiv: chinaxiv-202203.00099

As an important component of the currently most authoritative dataset for medium-range ensemble forecasting, the applicability of TIGGE precipitation products in the arid and semi-arid regions of China requires further investigation. Based on observed precipitation data from 2015–2017 in the arid an…

Spatiotemporal Characteristics and Trend Analysis of Precipitation in the Aral Sea Basin: Postprint

Wang Haoxuan, Huang Feng
2022-03-28 ChinaXiv: chinaxiv-202203.00100

Based on the monthly precipitation series of the Aral Sea basin from 1945 to 2019 derived from the CRU (Climate Research Unit) dataset, this study analyzed the spatiotemporal characteristics of annual precipitation variation, intra-annual distribution of precipitation, and complexity changes in prec…

How Relational Dependency Affects the Growth and Development of Global City Networks: A Case Study of Apple iPhone Suppliers (Postprint)

Liu Qing
2022-02-11 ChinaXiv: chinaxiv-202202.00016

Current urban network research exhibits a tendency to emphasize structural characteristic measurement while relatively neglecting impact mechanism analysis. Furthermore, in studies on urban network impact mechanisms, there is an overemphasis on theoretical qualitative macro-descriptions or conventio…

Postprint: Analysis of Multi-system Synergy Level, Spatio-temporal Evolution, and Mechanism of Rural Tourism Public Services in China

Zhang Xincheng
2022-02-11 ChinaXiv: chinaxiv-202202.00018

By constructing a five-element system coupling model, this study measures the coordination degree of rural tourism public information services, safety and security services, transportation convenience services, people-benefit and convenience services, and public administrative services across 30 pro…

Study on the Evolution of Economic Linkage Network Structure and Its Impact on Economic Growth in the Guanzhong Plain Urban Agglomeration (Postprint)

Ye Shanshan
2022-02-11 ChinaXiv: chinaxiv-202202.00020

This study employs urban flow intensity to modify the traditional gravity model for constructing an economic linkage matrix, and utilizes social network analysis methods to examine the evolutionary characteristics of the economic linkage network structure and its impact on economic growth in the Gua…

Research on Optimal Spatial Settlement Patterns in the Hilly-Gully Region of the Loess Plateau in Northern Shaanxi: A Case Study of Donggou, Mizhi County (Postprint)

Tian Darui
2022-02-11 ChinaXiv: chinaxiv-202202.00021

The hilly-gully region of the Loess Plateau constitutes a critical challenge for new urbanization practices in western China. In the absence of clarified regional characteristics, the intervention of modern urban-rural planning and design has generated substantial impacts on the local environment an…

Postprint: Ecological Characteristics of Reed Populations in the Sandy Land on the Southern Margin of the Badain Jaran Desert

Liu Xin
2022-01-26 ChinaXiv: chinaxiv-202201.00103

Investigations were conducted on the modular characteristics, population age structure, dynamic features, and spatial distribution patterns of ramet populations of Phragmites australis naturally distributed in two sandy habitats (saline sandy land and ordinary sandy land) on the southern margin of t…

Spatiotemporal Characteristics of Pan Evaporation and Its Influencing Factors in the Loess Plateau Region from 1960 to 2018: Postprint

Zhang Yaozong
2022-01-26 ChinaXiv: chinaxiv-202201.00121

Evaporation constitutes a critical process in the hydrological cycle, and investigating pan evaporation in the Loess Plateau region is of paramount significance for regional water resource utilization and protection. By compiling data on pan evaporation, air temperature, wind speed, precipitation, r…