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Simulation and analysis of the long-term impacts of 1.5°C global climate pledges on China's land systems

Science China earth Sciences 2025年

作者： Jiaying LV Changqing SONG Yifan GAO Sijing YE Peichao GAO state key laboratory of earth surface processes and resource ecology Beijing Normal University Center for GeoData and Analysis Beijing Normal University

Global warming has become a shared issue for humanity. At the 26th Conference of the Parties to the United Nations Framework Convention on Climate Change in 2021, participating countries reached climate pledges aimed at making more proactive contributions to limit the global average temperature rise within 1.5°C by 2100. Land system changes are significant responses of land to climate change. As one of the contracting parties, China has proposed climate targets such as carbon peaking and carbon neutrality goals in recent years to support the global pledges of limiting global warming to1.5°C, which will profoundly impact China's future land system changes. This study focuses on China as the study area,produces data with a thematic resolution of 27 types of land systems, integrates the output of various land types by the Global Change Assessment Model(GCAM) into four categories of land service demand, and combines these with the improved CLUMondo model to simulate China's land system changes in 2100 under a 1.5°C global warming scenario and a reference scenario without updated emission reduction measures. The conclusions of this study are as follows:(1) The method of integrating the GCAM and improved CLUMondo model demonstrates high validation accuracy in simulating China's land system changes, effectively predicting the changes.(2) Under the 1.5°C global warming scenario, the quality of ecosystems related to mountains, water, forests, farmland, lakes, and grasslands in China improved. The areas of shrubland, wetland, and forest are projected to increase by 185%, 79%, and 33%, respectively, with low-density shrubland, high-density wetland, and high-density forest showing the most significant increases.(3) Compared with the reference scenario, the 1.5°C climate pledges drive greater changes in future land systems, with wetland and forest area growth levels exceeding those of the reference scenario by 20% and 10%, respectively. Notably, the changes in cropland, grasslan

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Effects of bamboo invasion on forest structures and diameter–height allometries

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Forest Ecosystems 2025年第1期12卷 38-45页

作者： Ming Ouyang Anwar Eziz Shuli Xiao Wenjing Fang Qiong Cai Suhui Ma Jiangling Zhu Qingpei Yang Jinming Hu Zhiyao Tang Jingyun Fang School of ecology and Environmental Science and Ministry of Education Key Laboratory for Transboundary Ecosecurity of SouthwestYunnan UniversityKunmingChina Institute of ecology College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking UniversityBeijingChina state key laboratory of Desert and Oasis ecology Key Laboratory of Ecological Safety and Sustainable Development in Arid LandsXinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqiChina Jiangxi Provincial key laboratory for Bamboo Germplasm resources and Utilization and College of ForestryJiangxi Agricultural UniversityNanchangChina

Forest structure is fundamental in determining ecosystem function,yet the impact of bamboo invasion on these structural characteristics remains *** investigated 219 invasion transects at 41 sites across the distribution areas of Moso bamboo(Phyllostachys edulis)in China to explore the effects of bamboo invasion on forest structural attributes and diameter–height allometries by comparing paired plots of bamboo,mixed bamboo-tree,and non-bamboo forests along the *** found that bamboo invasion decreased the mean and maximum diameter at breast height,maximum height,and total basal area,but increased the mean height,stem density,and scaling exponent for *** also had a higher scaling exponent than tree,particularly in mixed forests,suggesting a greater allocation of biomass to height *** invasion intensity increased,bamboo allometry became more plastic and decreased significantly,whereas tree allometry was indirectly promoted by increasing stem ***,a humid climate may favour the scaling exponents for both bamboo and tree,with only minor contributions from topsoil moisture and nitrogen *** inherent superiority of diameter–height allometry allows bamboo to outcompete tree and contributes to its invasive *** findings provide a theoretical basis for understanding the causes and consequences of bamboo invasion.

关键词： Moso bamboo Forest structure Stand density DBHHeight allometry Scaling exponent Wetness index

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Nitrogen addition promotes soil carbon accumulation globally

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Science China(Life Sciences) 2025年第1期68卷 284-293页

作者： Xuemei Yang Suhui Ma Erhan Huang Danhua Zhang Guoping Chen Jiangling Zhu Chengjun Ji Biao Zhu Lingli Liu Jingyun Fang Institute of ecology College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking UniversityBeijing 100871China Ministry of Education key laboratory for Transboundary Ecosecurity of Southwest China School of Ecology and Environmental ScienceYunnan UniversityKunming 650500China state key laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China

Soil is the largest carbon(C)reservoir in terrestrial ecosystems and plays a crucial role in regulating the global C cycle and climate *** nitrogen(N)deposition has been widely considered as a critical factor affecting soil organic carbon(SOC)storage,but its effect on SOC components with different stability remains ***,we analyzed extensive empirical data from 304 sites worldwide to investigate how SOC and its components respond to N *** analysis showed that N addition led to a significant increase in bulk SOC(6.7%),with greater increases in croplands(10.6%)and forests(6.0%)compared to grasslands(2.1%).Regarding SOC components,N addition promoted the accumulation of plant-derived C(9.7%–28.5%)over microbial-derived C(0.2%),as well as labile(5.7%)over recalcitrant components(–1.2%),resulting in a shift towards increased accumulation of plant-derived labile ***,N addition led to a greater increase in particulate organic C(11.9%)than mineral-associated organic C(3.6%),suggesting that N addition promotes C accumulation across all pools,with more increase in unstable than stable *** responses of SOC and its components were best predicted by the N addition rate and net primary ***,our findings suggest that N enrichment could promote the accumulation of plant-derived and non-mineral associated C and a subsequent decrease in the overall stability of soil C pool,which underscores the importance of considering the effects of N enrichment on SOC components for a better understanding of C dynamics in soils.

关键词： meta-analysis nitrogen enrichment soil organic carbon carbon accumulation carbon stability

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Simulation and analysis of the long-term impacts of 1.5℃ global climate pledges on China's land systems

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Science China earth Sciences 2025年第2期68卷 457-472页

作者： Jiaying LV Changqing SONG Yifan GAO Sijing YE Peichao GAO state key laboratory of earth surface processes and resource ecology Beijing Normal UniversityBeijing 100875China Center for GeoData and Analysis Beijing Normal UniversityBeijing 100875China

Global warming has become a shared issue for *** the 26th Conference of the Parties to the United Nations Framework Convention on Climate Change in 2021,participating countries reached climate pledges aimed at making more proactive contributions to limit the global average temperature rise within 1.5℃by *** system changes are significant responses of land to climate *** one of the contracting parties,China has proposed climate targets such as carbon peaking and carbon neutrality goals in recent years to support the global pledges of limiting global warming to 1.5℃,which will profoundly impact China's future land system *** study focuses on China as the study area,produces data with a thematic resolution of 27 types of land systems,integrates the output of various land types by the Global Change Assessment Model(GCAM)into four categories of land service demand,and combines these with the improved CLUMondo model to simulate China's land system changes in 2100 under a 1.5℃global warming scenario and a reference scenario without updated emission reduction *** conclusions of this study are as follows:(1)The method of integrating the GCAM and improved CLUMondo model demonstrates high validation accuracy in simulating China's land system changes,effectively predicting the changes.(2)Under the 1.5℃global warming scenario,the quality of ecosystems related to mountains,water,forests,farmland,lakes,and grasslands in China *** areas of shrubland,wetland,and forest are projected to increase by 185%,79%,and 33%,respectively,with low-density shrubland,high-density wetland,and high-density forest showing the most significant increases.(3)Compared with the reference scenario,the 1.5℃climate pledges drive greater changes in future land systems,with wetland and forest area growth levels exceeding those of the reference scenario by 20%and 10%,***,the changes in cropland,grassland,and wetland areas are more pronounced in so

关键词： 1.5℃global warming China Land system changes Simulation Scenario analysis

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Future soil moisture will slowdown the advancement of ecosystem productivity in the Northern Hemisphere

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Science Bulletin 2025年第3期70卷 347-350页

作者： Zhi Li Yongchang Liu Yaning Chen Lei Gao Wenping Yuan Brett A.Bryan Bin He Weili Duan Gonghuan Fang Yupeng Li Xueqi Zhang state key laboratory of Desert and Oasis ecology Key Laboratory of Ecological Safety and Sustainable Development in Arid LandsXinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China University of the Chinese Academy of Sciences Beijing 100049China Commonwealth Scientific and Industrial Research Organisation(CSIRO) UrrbraeSA 5064Australia School of Atmospheric Sciences Sun Yat-sen UniversityZhuhai 510245China Centre for Integrative ecology School of Life and Environmental SciencesDeakin UniversityBurwoodVIC 3125Australia state key laboratory of earth surface processes and resource ecology Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China

Gross primary productivity(GPP)is a crucial metric when quantifying the amount of CO_(2)sequestered by plants during *** large terrestrial carbon sink in the Northern Hemisphere is primarily attributed to elevated GPP... 详细信息

关键词： soil moisture attributed

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Human activities are intensifying the spatial variation of landslides in the Yellow River Basin

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Science Bulletin 2025年第2期70卷 263-272页

作者： Naiman Tian Hengxing Lan Langping Li Jianbing Peng Bojie Fu John J.Clague state key laboratory of resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Geological Engineering and Geomatics Chang’an UniversityXi’an 710054China University of Chinese Academy of Sciences Beijing 100049China key laboratory of Ecological Geology and Disaster Prevention Ministry of Natural ResourcesXi’an 710054China state key laboratory of Urban and Regional ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China state key laboratory of earth surface processes and resource ecology Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Department of earth Sciences Simon Fraser UniversityBurnaby BCV5A 1S6Canada

Human activities are a triggering factor for landslides in the Yellow River Basin(YRB,China).However,the extent to which the spatial distribution of landslides is affected by human activities is *** constructed a human activity intensity index(HAII)based on nighttime light data and land cover *** and dominance analyses were used to compare the effects of the HAII,precipitation,distance to river,distance to fault,topographic relief and slope on the landslides spatial density(LSD).The results showed that in the YRB,the HAII,as a dominance influencing factor,had a significant positive influence on the ***,regional differences in the human disturbance of nature intensify the spatial variation of *** quantify the intensity of human disturbance to nature,a human-nature conflict index(HNCI)is constructed by quantifying the difference between the slope distributions of artificial and natural *** results show that in the middle section of the YRB,humans are developing more steep mountainous areas,leading to more dense *** study provides a reference for landslide risk management and land use planning in the YRB.

关键词： Landslide Human activities Spatial variation Human-nature conflict Yellow River Basin

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Vegetation mapping of Yunnan Province by integrating remote sensing, field observations, and models

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Science China earth Sciences 2025年第3期68卷 836-849页

作者： Mingjian XIAHOU Mingchun PENG Zehao SHEN Qingzhong WEN Chongyun WANG Yannan LIU Qiuyuan ZHANG Lei PENG Changyuan YU Xiaokun OU Jingyun FANG key laboratory of Ministry of Education for earth surface processes College of Urban & Environmental SciencesPeking University School of ecology and Environment Yunnan University Yunnan Institute of Forest Inventory and Planning

Vegetation maps are crucial for ecologists and decision-makers, providing essential information on the spatial distribution of various vegetation types to support ecosystem exploration and management. Despite advancements in earth observation and machine learning enabling large-scale vegetation mapping, creating detailed and accurate maps in biodiversity hotspots remains challenging due to significant environmental heterogeneity and frequent human disturbances. The lack of sufficient ground-based data and complex climate-vegetation interactions further limits mapping accuracy. In this study, we developed an integrated framework for multi-source data fusion to enhance vegetation mapping and validation in Yunnan Province, a global biodiversity hotspot region in Southwest China. The mapping process involved four key steps:(1) vegetation classification using random forest and Landsat imagery,(2) boundary calibration based on a locally calibrated static climatevegetation model,(3) patch correction with independent forest inventory data, and(4) validation using adequate field observations. This approach enabled the mapping of 17 vegetation types and 44 subtypes in Yunnan Province(1:50000), categorized based on the growth-form composition of dominant species of the community. The overall accuracies were 0.747 and0.710 for natural vegetation types and subtypes, and 0.905 and 0.891 for artificial types and subtypes. This high-resolution map enhances our understanding of vegetation distribution and ecological complexity in this region, offering valuable insights for policymakers to support conservation efforts and sustainable management strategies.

关键词： Vegetation mapping Biodiversity hotspot region Multi-source data Data-fusion framework Ecological diversity

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Engineered iron-based metal-organic frameworks nanoplatforms for cancer theranostics: A mini review

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Chinese Chemical Letters 2025年第2期36卷 80-93页

作者： Yunlong Li Xinyu Zhang Shuang Liu Chunsheng Li Qiang Wang Jin Ye Yong Lu Jiating Xu key laboratory of Forest Plant ecology Ministry of Education College of Chemistry Chemical Engineering and Resource Utilization Northeast Forestry University School of laboratory Medicine Wannan Medical College Heilongjiang Provincial key laboratory of Ecological Utilization of Forestry-Based Active Substances Northeast Forestry University

Up to now, numerous emerging methods of cancer treatment including chemodynamic therapy, photothermal therapy, photodynamic therapy, sonodynamic therapy, immunotherapy and chemotherapy have rapidly entered a new stage of development. However, the single treatment mode is often constrained by the complex tumor microenvironment. Recently, the nanomaterials and nanomedicine have emerged as promising avenues to overcome the limitation in cancer theranostics. Especially, metal-organic frameworks (MOFs) have gained considerable interests in cancer therapy because of their customizable morphologies, easy functionalization, large specific surface area, and good biocompatibility. Among these MOFs, iron-based MOFs (Fe-MOFs) are particularly promising for cancer treatment due to their properties as nano-photosensitizers, peroxidase-like activity, bioimaging contrast capabilities, and *** their structural regularity and synthetic tunability, Fe-MOFs can be engineered to incorporate organic molecules or other inorganic nanoparticles, thereby creating multifunctional nanoplatforms for single or combined theranostic modes. Herein, the minireview focuses on the recent advancements of the Fe-MOFs-based nanoplatforms for self-enhanced imaging and treatment at tumor sites. Furthermore,the clinical research development of Fe-MOFs-based nanoplatforms is discussed, addressing key challenges and innovations for the future. Our review aims to provide novice researchers with a foundational understanding of advanced cancer theranostic modes and promote their clinical applications through the modification of Fe-MOFs.

关键词： Bioimaging Cancer theranostics Catalytic therapy Engineered nanoplatforms Fe-based MOFs

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Deciphering Water Oxidation Catalysts:The Dominant Role of surface Chemistry over Reconstruction Degree in Activity Promotion

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Nano-Micro Letters 2025年第3期17卷 340-354页

作者： Li An Jianyi Li Yuanmiao Sun Jiamin Zhu Justin Zhu Yeow Seow Hong Zhang Nan Zhang Pinxian Xi Zhichuan J.Xu Chun‑Hua Yan state key laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceFrontiers Science Center for Rare IsotopesCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou 730000People’s Republic of China School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore Faculty of Materials Science and Energy Engineering Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055People’s Republic of China key laboratory of Electromagnetic Materials and Devices National Center for International Research On Photoelectric and Energy MaterialsSchool of Materials and EnergyElectron Microscopy CenterYunnan UniversityKunming 650091People’s Republic of China state key laboratory of Baiyunobo Rare earth resource Researches and Comprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030People’s Republic of China Beijing National laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU‑HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryPeking UniversityBeijing 100871People’s Republic of China

Water splitting hinges crucially on the availability of electrocatalysts for the oxygen evolution *** surface reconstruction has been widely observed in perovskite catalysts,and the reconstruction degree has been often correlated with the activity ***,a systematic study on the roles of Fe substitution in activation of perovskite LaNiO_(3)is *** substituting Fe content influences both current change tendency and surface reconstruction ***_(0.9)Fe_(0.1)O_(3)is found exhibiting a volcano-peak intrinsic activity in both pristine and reconstructed among all substituted perovskites in the LaNi_(1-x)Fe_(x)O_(3)(x=0.00,0.10,0.25,0.50,0.75,1.00)*** reconstructed LaNi_(0.9)Fe_(0.1)O_(3)shows a higher intrinsic activity than most reported NiFe-based ***,density functional theory calculations reveal that Fe substitution can lower the O 2p level,which thus stabilize lattice oxygen in LaNi0.9Fe0.1O3 and ensure its long-term ***,it is vital interesting that activity of the reconstructed catalysts relied more on the surface chemistry rather than the reconstruction *** effect of Fe on the degree of surface reconstruction of the perovskite is decoupled from that on its activity enhancement after surface *** finding showcases the importance to customize the surface chemistry of reconstructed catalysts for water oxidation.

关键词： Oxygen evolution reaction Perovskite oxides Doping Activation and reconstruction

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Effective suppression of surface cation segregations on double perovskite oxides through entropy engineering

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Journal of Rare earths 2025年第2期43卷 345-353,I0005页

作者： Zhe Wang Mengke Yuan Juntao Gao Hongru Hao Jingwei Li Lingling Xu Zhe Lv Bo Wei School of Physics Harbin Institute of TechnologyHarbin150001China Faculty of Engineering University of Bayreuth95448BayreuthGermany state key laboratory of Rare earth resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China key laboratory of Photonic and Electric Band Gap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin150025China

Cation segregation on cathode surfaces plays a key role in determining the activity and operational stability of solid oxide fuel cells(SOFCs).The double perovskite oxide PrBa_(0.8)Ca_(0.2)Co_(2)O_(5+δ)(PBCC)has been widely studied as an active cathode but still suffer from serious detrimental *** enhance the cathode stability,a PBCC derived A-site medium-entropy Pr_(0.6)La_(0.1)Nd_(0.1)Sm_(0.1)Gd_(0.1)Ba_(0.8)Ca_(0.2)Co_(2)O_(5+δ)(ME-PBCC)oxide was prepared and its segregation behaviors were investigated under different *** with initial PBCC oxide,the segregations of BaO and Co_(3)O_(4)on the surface of ME-PBCC material are significantly suppressed,especially for Co_(3)O_(4),which is attributed to its higher configuration *** results also confirm the improved electrochemical performance and structural stability of ME-PBCC material,enabling it as a promising cathode for SOFCs.

关键词： Solid oxide fuel cells Cathode Double perovskite Configuration entropy Cation segregation Rare earths

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