Article
Multidisciplinary Sciences
Qiang Li, Junyin Yang, Wenhao Guan, Zhigang Liu, Guoxing He, Degang Zhang, Xiaoni Liu
Summary: This study evaluated the overall soil characteristics of grasslands in the Qilian Mountains, finding that most regions had good soil fertility with high levels of organic matter, total nitrogen, and available potassium. Different grassland types had varying main limiting factors affecting soil fertility, such as pH, total nitrogen, and organic matter in lowland meadows, and pH and available phosphorus in upland meadows, alpine meadows, temperate steppes, and alpine steppes. The findings suggest that phosphorus application may be required for typical grasslands and meadows, while both nitrogen and phosphorus are needed for desert grasslands to improve soil fertility and productivity.
Article
Plant Sciences
Huijun Qin, Liang Jiao, Yi Zhou, Jingjing Wu, Xichen Che
Summary: This study investigated the effects of elevation gradients on the C, N, and P content of different tissues of Qinghai spruce, and found that Qinghai spruce is more susceptible to N limitation. The N content and N:P ratio of Qinghai spruce were significantly negatively correlated with temperature, and the P content was lower at high elevation. Soil-climate interactions on the elevation gradient predominantly drove the variation in C, N, and P content and stoichiometry of Qinghai spruce trees in each tissue type. These findings are important for future forest management in coniferous tree growing regions and contribute to understanding the elevational patterns of forest ecosystem stoichiometry in arid and semiarid regions.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Theophilus Atio Abalori, Wenxia Cao, Conrad Atogi-Akwoa Weobong, Shilin Wang, Dominic Kwadwo Anning, Faisal Eudes Sam, Wanting Liu, Wenhu Wang
Summary: This study investigates the spatial variability of SOC and its fractions, as well as the stability of aggregates in alpine meadow grasslands along an elevation gradient. The findings suggest that global climate warming could affect SOC and soil aggregate stability by influencing aboveground biomass distribution.
CHILEAN JOURNAL OF AGRICULTURAL RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Theophilus Atio Abalori, Wenxia Cao, Conrad Atogi-Akwoa Weobong, Wen Li, Shilin Wang, Xiuxia Deng
Summary: Grasslands globally are affected by climate change and unsustainable management practices, leading to transitions from stable to degraded and eventually desertification. Understanding the relationships between grassland vegetation and its environment, particularly topographic conditions and soil properties, is crucial for vegetation restoration projects in alpine grasslands.
Article
Geosciences, Multidisciplinary
Jianguo Liu, Xiaohua Gou, Fen Zhang, Rui Bian, Dingcai Yin
Summary: The study conducted in the Qilian Mountains revealed distinct patterns of soil and plant tissue stoichiometry in Qinghai spruce forests, with soil properties playing a larger role in determining plant tissue N:P ratios than climate factors. This highlights the importance of understanding the nutrient traits in forest ecosystems for future cultivation and management in arid regions.
Article
Plant Sciences
Xiaofang Zhang, Qi Feng, Jianjun Cao, Asim Biswas, Haohai Su, Wei Liu, Yanyan Qin, Meng Zhu
Summary: Plants adapt to changes in elevation by adjusting their leaf stoichiometry. This study compared the leaf stoichiometry of Potentilla anserina at different elevations in the Qilian Mountains. Leaf carbon concentration decreased with increasing elevation, while leaf nitrogen concentration increased. Leaf phosphorus concentration varied significantly. The ratios of carbon to nitrogen and nitrogen to phosphorus also showed corresponding changes. Temperature, precipitation, and soil conditions influenced leaf stoichiometry, and phosphorus limitation affected the growth of P. anserina.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Junxiao Pan, Jinsong Wang, Ruiyang Zhang, Dashuan Tian, Xiaoli Cheng, Song Wang, Chen Chen, Lu Yang, Shuli Niu
Summary: This study investigated the influences of climatic, edaphic, plant, and microbial drivers on soil aggregate associated C in alpine grasslands on the Tibetan Plateau. It found that microaggregate associated C contributed most to soil C stock and edaphic factors played a crucial role in this process.
Article
Forestry
Wei Liu, Meng Zhu, Yongge Li, Jutao Zhang, Linshan Yang, Chengqi Zhang
Summary: The study assessed the dynamics of soil organic carbon (SOC) stock in the middle Qilian Mountains using a machine learning model and systematic measurements. The results indicated that the SOC stock is expected to decrease under future climate change, with the changes in size and direction linked to elevation levels.
Article
Agronomy
Xiaotao Huang, Buqing Yao, Xiang Liu, Chunbo Chen
Summary: This study investigated the temporal and spatial dynamics of carbon storage in the grasslands of Qinghai, China, using the Biome-BGCMuSo model. The results showed that vegetation carbon density has been increasing since 2000, mainly in the eastern and southeastern regions. Soil organic carbon density also showed a consistent increasing trend, mainly in the southeast and northeast parts of Qinghai.
Article
Green & Sustainable Science & Technology
Yue Zhang, Wenxiong Jia, Le Yang, Guofeng Zhu, Xin Lan, Huifang Luo, Zhijie Yu
Summary: Studying the distribution of soil organic carbon (SOC) and its correlation with soil nutrients in high-altitude mountainous areas provides insight into carbon stocks and the local carbon cycle. Soil samples were collected from semi-sunny and semi-shady slopes in the subalpine shrub zone of the eastern Qilian Mountains from May to October 2019. The results showed that SOC content and soil nutrients were greater on the semi-shady slope during the growing season and decreased with soil depth in different slope directions, with surface aggregation observed. The correlation between SOC and soil nutrients varied among soil layers and slope orientations.
Article
Environmental Sciences
Xia Cui, Gang Xu, Xiaofei He, Danqi Luo
Summary: This study investigates the spatiotemporal patterns of vegetation phenology and the influence of soil moisture on vegetation phenology in the Qilian Mountains. The results show that temperature, precipitation, and soil moisture have heterogeneous effects on vegetation phenology, with soil moisture having a stronger influence in lower elevations and water-limited areas.
Article
Agronomy
Qinqin Du, Yunfan Sun, Qingyu Guan, Qingzheng Wang, Lushuang Liang, Yunrui Ma, Huichun Li
Summary: This study aims to explore the relationship between the theoretical carrying capacity of grasslands and the forage-livestock balance in the Qilian Mountains. It was found that precipitation was the main factor contributing to the increase in the theoretical carrying capacity. Future grassland management should prioritize areas with continuously increasing overloading.
Article
Environmental Sciences
Cezary Kabala, Lukasz Chachulski, Bogdan Gadek, Bartosz Korabiewski, Monika Metrak, Malgorzata Suska-Malawska
Summary: The study examines the impact of major environmental factors related to climate, topography, and vegetation on soil development in the Uisu Glacier foreland. The extremely cold and dry climate limits water availability, suppresses vegetation growth, and slows down soil development. Both WRB and Soil Taxonomy were able to reflect advances in soil development and spatial differentiation, highlighting different features developed under the extreme climate conditions of the East Pamir Mountains.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Plant Sciences
Chunming Li, Derong Zhang, Gengchun Xu, Rui Yan, Yang Huang, Liuqing Feng, Jin Yi, Xiangyu Xue, Huixia Liu
Summary: The composition and diversity of soil microbial communities in alpine grasslands were analyzed using Illumina MiSeq high-throughput sequencing technology. With the deterioration of alpine grasslands, soil pH increased significantly, while soil water content, organic matter, total nitrogen, total phosphorus, available nitrogen, and available phosphorus showed a significant decreasing trend. Soil microbial biomass carbon, microbial biomass nitrogen, and microbial biomass phosphorus also significantly decreased. Alpine grassland degradation significantly changed the community composition and beta-diversity of soil bacteria and fungi. Key factors limiting the changes in soil bacterial and fungal community composition were soil pH, water content, available nitrogen, and microbial biomass nitrogen. This study highlights the importance of soil microbial community composition in the restoration management of alpine grassland degradation.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Geosciences, Multidisciplinary
Yushuo Liu, Dahe Qin, Yanzhao Li, Xiang Qin, Zhenlin Li, Jing Wang, Zizhen Jin, Lihui Wang
Summary: The study assesses the volume and cumulative mass balance of the Laohugou glacier No. 12 (LHG12) in the Qilian Mountains from 1957 to 2015. The results show that LHG12 has experienced significant shrinking due to strong melting and accelerated ablation since 1989. The study also suggests that rising temperatures, especially in autumn and winter, may contribute to the increased sensitivity of LHG12 to climate change.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Mathematics, Applied
Xiaomeng Sun, Yanfei Wang, Xiao Yang, Yibo Wang
Summary: This paper studies the transient electromagnetic inversion problem and proposes a method based on optimal transport to solve it. Experimental tests demonstrate the feasibility of this method.
JOURNAL OF INVERSE AND ILL-POSED PROBLEMS
(2022)
Article
Engineering, Environmental
Hongbo Chen, Zhiming Zou, Mengge Tang, Xiao Yang, Yiu Fai Tsang
Summary: The dose-dependent effect of polycarbonate (PC) microplastics on anaerobic digestion of sludge was observed. Low concentrations of PC microplastics improved methane production, while high concentrations reduced methane production. Additionally, leached bisphenol A (BPA) played a role in modulating the behavior of microplastics.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Qingbin Fan, Jie Liao, Yan Li, Wei Ye, Tao Wang, Lupeng Yu, Xiao Feng, Weixiao Han
Summary: The yardangs surrounding the Suoyang City ruins are wind-eroded landforms developed in an oasis used for agriculture in history. Research suggests that their formation possibly started in the mid-13th century and quickly evolved into desert land after being abandoned. Human activities and climate change both played significant roles in the process of desertification.
Article
Engineering, Environmental
Yaoyu Zhou, Xin Liu, Xiao Yang, Gijs Du Laing, Yuan Yang, Filip M. G. Tack, Michael S. Bank, Jochen Bundschuh
Summary: This study investigated the uptake mechanisms and phytotoxicity of different-sized platinum nanoparticles (PtNPs) on rice seedlings. Results showed that 70 nm-sized PtNPs were more efficiently transferred in rice roots. Increasing PtNP concentration restricted particle uptake, while particle aggregation and dissolution were observed in plant cells and on root surfaces.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Geography, Physical
H. Zhao, B. Li, X. F. Wang, T. J. Cohen, Y. X. Fan, H. Y. Yang, K. Q. Wang, Y. W. Sheng, S. A. Zhan, S. H. Li, T. Wang, X. L. Wangi, F. H. Chen
Summary: The highest sand dunes in the world are located in the Badain Jaran Desert in northwestern China, reaching heights of 200-300 meters and some even as high as 500 meters. Through sedimentary records and high-resolution optical dating, it was found that these giant transverse dunes migrated downwind over tens of thousands of years, with a migration rate of only a few centimeters per year, and are closely linked to global climate change. These findings highlight the significant role of global climate change in the formation and migration of megadunes during the last glacial cycle.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Astronomy & Astrophysics
Xianyong Bai, Hui Tian, Yuanyong Deng, Zhanshan Wang, Jianfeng Yang, Xiaofeng Zhang, Yonghe Zhang, Runze Qi, Nange Wang, Yang Gao, Jun Yu, Chunling He, Zhengxiang Shen, Lun Shen, Song Guo, Zhenyong Hou, Kaifan Ji, Xingzi Bi, Wei Duan, Xiao Yang, Jiaben Lin, Ziyao Hu, Qian Song, Zihao Yang, Yajie Chen, Weidong Qiao, Wei Ge, Fu Li, Lei Jin, Jiawei He, Xiaobo Chen, Xiaocheng Zhu, Junwang He, Qi Shi, Liu Liu, Jinsong Li, Dongxiao Xu, Rui Liu, Taijie Li, Zhenggong Feng, Yamin Wang, Chengcheng Fan, Shuo Liu, Sifan Guo, Zheng Sun, Yuchuan Wu, Haiyu Li, Qi Yang, Yuyang Ye, Weichen Gu, Jiali Wu, Zhe Zhang, Yue Yu, Zeyi Ye, Pengfeng Sheng, Yifan Wang, Wenbin Li, Qiushi Huang, Zhong Zhang
Summary: The Solar Upper Transition Region Imager (SUTRI) on SATech-01 aims to test a newly developed mirror and an EUV CMOS camera. It captures solar images at the Ne vii 46.5 nm line with a 3 nm filter. SUTRI has a field of view of about 41.6 x 41.6 and a spatial resolution of about 8 without image stabilization.
RESEARCH IN ASTRONOMY AND ASTROPHYSICS
(2023)
Article
Environmental Sciences
Maurice Ngabire, Tao Wang, Jie Liao, Ghada Sahbeni
Summary: This research used a GIS-based and geographic detector model to quantitatively analyze the impact of environmental and anthropogenic factors on desertification in the Shiyang River Basin. The study found that elevation and soil types were the main contributors to desertification and highlighted the importance of environmental factors as drivers.
Article
Environmental Sciences
Wen Dong, Ruichen Wang, Huaien Li, Xiao Yang, Jiake Li, Hui Wang, Chunbo Jiang, Zhe Wang
Summary: This study investigated the use of ryegrass combined with chelating agents for the remediation of cadmium and lead-contaminated soil. The extraction efficiencies of different chelating agents were determined through soil leaching experiments, and the effects on the growth of ryegrass and the enrichment of Cd and Pb were evaluated through soil pot experiments. The results showed that glucose salt chelating agents and ethylenediaminetetraacetic acid (EDTA) exhibited good extraction efficiencies for Cd and Pb, and the use of chelating agents reduced the contents of these metals in the weak acid extractable and reducible states in the soil.
Article
Environmental Sciences
Buxing Shi, Kui Cai, Xiulan Yan, Zhaoshu Liu, Qian Zhang, Jun Du, Xiao Yang, Wenlou Luan
Summary: Nonferrous metal smelting is a potential source of trace elements emission. This study focused on soil samples collected from cultivated land around nonferrous metal smelters in Qingyuan Town. The results indicated that soil clay is the key factor determining the spatial distribution and migration behavior of toxic elements, and that different toxic elements have different relationships with clay minerals.
Article
Microbiology
Xiao Yang, Hongjia Yu, Jinwei Ren, Lei Cai, Lijian Xu, Ling Liu
Summary: Phytopathogens pose a significant threat to crops and human health, but marine-derived fungi offer potential anti-phytopathogenic drugs. A new compound, aspersydosulfoxide A, and several known compounds were isolated from a marine-derived fungus. These compounds showed antimicrobial and antinematodal activities, indicating their potential use in crop protection.
Article
Agronomy
Heqiang Du, Yawei Fan, Lihui Luo, Jie Liao, Zongxing Li, Xiufan Liu, Xinlei Liu, Xian Xue, Tao Wang
Summary: Human activity is a major cause of uncertainties in the global dust budget. The division of natural and anthropogenic dust sources is controversial, and their effects on dust emissions are difficult to distinguish. A model was used to simulate dust emission processes over the Qinghai-Tibetan Plateau, identifying natural and anthropogenic dust sources. The study found that land use changes had slightly larger effects on dust emissions compared to climatic fluctuations.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Environmental Sciences
Fen Yang, Chaoyang Wei, Huan Zhang, Xiao Yang
Summary: Bioaccumulation through diet is the main source of metal(loid)s in fishes. This study investigated the diet compositions of aquatic organisms and their potential food sources using stomach content analysis, stable isotope analysis, and a Bayesian mixing model. The results showed that aquatic organisms mainly obtained their nutrients from fine particulate organic matter and epilithon, with smaller contributions from leaf litter, coarse particulate organic matter, and fish.
Article
Biodiversity Conservation
Xiufan Liu, Heqiang Du, Sen Li, Xinlei Liu, Yawei Fan, Tao Wang
Summary: In recent decades, wind erosion has become a concern due to a declining trend in wind speed in northern China. The reclamation of grassland and sandy land into cropland has raised questions about the potential increase in wind erosion. This study used the Revised Wind Erosion Equation (RWEQ) to simulate the wind erosion in the Mu Us Sandy Land (MUSL) from 2000 to 2020 and analyzed the effects of different reclamation patterns on wind erosion. The results showed a decrease in wind erosion during the simulated period, and the WEM of croplands reclaimed by herdsmen was higher than that reclaimed by enterprises.
ECOLOGICAL INDICATORS
(2023)
Article
Environmental Sciences
Chunmei Wang, Qianqian Xie, Xiaomin Dou, Lanxi Zhang, Xiao Yang
Summary: Carbon-based solid acids are effective catalysts for pollutant mitigation in wastewater. This study investigated the use of commercially available carbons, such as biochar, activated carbon, and graphite, as solid-acid catalysts for tylosin mitigation. The results showed that graphite-originated solid acids performed the best, while biochar-originated solid acids showed good performance regardless of preprocessing treatments. The study provides valuable insights into tuning carbon surface chemistry to enhance sulfonation and improve the catalytic degradation of tylosin.
Article
Soil Science
Beibei Fan, Shuai Ding, Yuqian Wang, Xue Li, Xiao Yang, Junhui Yin, Hao Chen, Qing Chen, Yutao Peng
Summary: This study investigates the efficacy of different amendments in reducing soil cadmium levels and its accumulation in spinach. The results show that oyster shells and red mud treatments are the most effective in reducing cadmium concentrations in both soil and plants. The thin film gradient diffusion technique provides the best prediction of cadmium accumulation in spinach compared to chemical extraction methods.
SOIL USE AND MANAGEMENT
(2023)