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Père David’s Deer(Elaphurus davidianus)in China:Population Dynamics and Challenges

Journal of Resources and ecology 2022年第1期13卷 41-50页

作者： XUE Dayuan ZHANG Yuanyuan CHENG Zhibin ZHONG Zhenyu CAO Ming FU Mengdi BAI Jiade YUAN Xuejiao School of Life and Environmental Sciences Minzu University of ChinaBeijing 100081China Beijing Milu Ecological Research Center Beijing 100076China Beijing Biodiversity Conservation Research Center Beijing 100076China Institute of Environmental Governance and Big Data Application Environmental Development Center of the Ministry of Ecology and EnvironmentBeijing 100029China Key Laboratory of Regional Eco-Process and Function Assessment and State Environment Protection Chinese Research Academy of Environmental SciencesBeijing 100012China

The reintroduction of rare and endangered species is one of the most important approaches to conservation and ecosystem restoration,but it has still proven to be an adventurous undertaking and most reintroduction programmes fail,so successful demonstrations are needed.Père David’s deer(Elaphurus davidianus,Milu in Chinese)could be considered one of conservation’s great success stories,as this species’path on the road to extinction has been reversed by a combination of ex-situ conservation and successful re-introduction in *** species had been consigned to an imperial hunting ground when the last Chinese herds were exterminated during the fall of the Qing Dynasty(1644-1912).Fortunately,a few of the last remaining individuals were sent to European *** these animals,a herd was bred on the 14;Duke of Bedford’s estate,Woburn Abbey,and between 1985and 1987,and 38 Milu were donated back to China for re-introduction in Beijing Milu Park(BMP),the former imperial hunting *** additional 39 deer were released at Dafeng National Nature Reserve(DFNNR),Jiangsu Province in *** both of these safe and protected locations,the Milu thrived allowing for over 700 Milu to be sent to a further 82 sites throughout the species’original Chinese range over the last 36 *** a result,the Milu population totaled 9136 by 2021,with 2855 individuals now living back in the wild;while another 5681 individuals inhabit the DFNNR,and 186 reside in *** Milu,however,still face significant conservation *** population lacks genetic diversity,leading to severe inbreeding depression and carrying multiple risks,such as high miscarriage rates,a reduced lifespan,and susceptibility to *** constraints such as pollution and habitat fragmentation further result in small,fragmented wild ***,the species currently lacks a national level conservation master plan,the associated coordinated monitoring platforms,and breeding plans for China’s capti

关键词： Elaphurus davidianus Milu reintroduction ex-situ conservation population dynamics

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Model bias in calculating factor importance of climate on vegetation growth

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Global and Planetary Change 2023年第1期228卷

作者： Liang, Boyi Liu, Hongyan Wang, Shaopeng Cressey, Elizabeth L. Dahlsjö, Cecilia A.L. Xu, Chongyang Wang, Jia Wang, Zong Liu, Feng Feng, Siwen Shi, Liang Dai, Jingyu Cao, Jing Li, Fufu Quine, Timothy A. College of Forestry Precision Forestry Key Laboratory of Beijing Beijing Forestry University Beijing100083 China College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes Peking University Beijing100871 China Geography College of Life and Environmental Sciences University of Exeter ExeterEX4 4RJ United Kingdom School of Geography and the Environment University of Oxford OxfordOX1 3QY United Kingdom Faculty of Agriculture Food and Environment The Hebrew University of Jerusalem Rehovot7610001 Israel Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China National Ecosystem Science Data Center Beijing100101 China State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China

Machine learning is increasingly used to study vegetation growth, however, more often than not, predicting and simulating functions are prioritized over quantitative estimates of the drivers of vegetation growth such as climate. In this paper, we, for the first time, systematically investigate the model bias in calculating factor importance of climate on vegetation growth, especially when various kinds of machine learning models are considered. We undertake two case studies to simulate research in remote sensing and ground-based scenarios from which the difference in quantitative relationships between climate and vegetation is evaluated across multiple models. We found that model complexity increased the determination coefficient (R2) but reduced the absolute importance of the preselected independent variables. As the fitting accuracy increases, the absolute factor importance of dominant factor and all the other influencing factors decreases simultaneously, and factor importance calculated by different models tended to be more normally distributed across the study region. The reduction in factor importance was accompanied by the increased effect of model selection;e.g. the model that was used to estimate vegetation growth played a larger role in producing the factor importance (shown by variance analysis, remote sensing scenario, F-statistic = 555.2;ground based scenario, F-statistic = 30.8) than the climate variables (variance analysis, remote sensing scenario, F = 460.8;ground based scenario, F = 28.8). Critically, for those machine learning models with highest fitting accuracy, the resultant factor importance of climate factors had smaller difference with that of random factor. In contrast, the relative factor influence among the selected climate factor is more robust and reliable (in variation analysis, model was detected no significant impact on the resultant factor importance). For 5 of 8 models, the dominant factor (temperature) has relative influence over 0.

关键词： Machine learning

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functional diversity and redundancy of subalpine meadows subjected to anthropogenic disturbances

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Journal of Plant ecology 2021年第5期14卷 870-883页

作者： Xiaoxia Huang Zhilu Sheng Kejian He Yong Zhang Bin Kang Jiao Ding Dongmei Liu Key Laboratory of Atmospheric Environment and Processes in the Boundary Layer over the Low-Latitude Plateau Region School of Earth SciencesYunnan UniversityKunming 650091Cliina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Institute of Ecology ResearchChinese Research Academy of Environmental SciencesBeijing 100012China National Plateau Wetlands Research Center College of WetlandsSoutliwest Forestry UniversityKunming 650224China College of Fisheries Ocean University of ChinaQingdao 266003China Water Conservancy Department of Yunnan Province Kunming 650021China

Aims The aims of this study were to assess how functional diversity(FD)and functional redundancy respond to subalpine meadow ecosystem degradation under anthropogenic disturbance and how species contribute to functional redundancy along the disturbance *** The study was carried out in the subalpine meadow in Mount Jade Dragon,which is located at the southeastern edge of the Tibetan *** disturbance intensities[no disturbance(ND),weak disturbance(WD),moderate disturbance(MD)and severe disturbance(SD)]were *** richness,soil properties and five key plant functional traits were assessed along the disturbance ***’s diversity index,FD based on the Rao algorithm,functional redundancy,community-weighted mean of each functional trait and species-level functional redundancy were *** Findings Unimodal change pattern of FD and functional redundancy along the disturbance gradient were found in the present study,with their maximum in MD and WD,*** diversity showed a decreasing trend with increasing disturbance *** disturbance intensified,species with traits related to conservative growth strategies,such as low specific leaf area(SLA)and high leaf dry matter content(LDMC),decreased,whereas species with resource acquisitive strategies,such as small plant,high SLA and low LDMC,increased in the *** the species level,species showed species-specific roles in functional ***,some species were important in the community in terms of their unique *** instance,Ligularia dictyoneura in ND and Potentilla delavayi in MD and SD.

关键词： anthropogenic disturbance functional diversity functional redundancy functionally unique species subalpine meadow

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A study of the genus Xylotrechus Chevrolat(Coleoptera:Cerambycidae)from Beijing,China

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Entomotaxonomia 2021年第3期43卷 205-224页

作者： Meiying LIN Siqin GE Nengwen XIAO Engineering Research Center for Forest and Grassland Disaster Prevention and Reduction Mianyang Normal UniversityMianyangSichuan 621000China Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

Ten species of the genus Xylotrechus Chevrolat,1860 from Beijing are *** pekingensis Pic,1939 is reinstated from synonym of Xylotrechus yanoi Gressitt,1934,and newly recorded from Hebei and Shaanxi *** bifenestratus Pic,1916 is proposed as a new junior synonym of Xylotrechus polyzonus(Fairmaire,1888),both were described from Beijing,*** species,***(Gebler,1825),*** Bates,1873,and ***(Pic,1936),are reported from Beijing for the first *** new localities are added to the related species based on specimens examined.A key to the ten species of Xylotrechus Chevrolat,1860 from Beijing is provided.

关键词： Cerambycinae Clytini taxonomy new synonym new record

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functional zoning and space management of Three-River-Source National Park

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Journal of Geographical Sciences 2019年第12期29卷 2069-2084页

作者： FU Mengdi TIAN Junliang REN Yueheng LI Junsheng LIU Weiwei ZHU Yanpeng State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Regional Eco-process and Function AssessmentChinese Research Academy of Environmental SciencesBeijing 100012China Three-River-Source National Park Administration Xining 810007China

functional zoning is a key step for the integrated planning and scientific management of a national *** the Three-River-Source National Park(TNP)as the study area,this paper establishes an evaluation system including 13 evaluation indexes which are classified into four categories,namely:ecosystem services;potential distribution of key species habitats;ecological sensitivity;and ecological resilience through the comprehensive analysis on the regional eco-environmental features in the study *** results of the comprehensive analysis,combined with the functions and requirements of management of national parks,indicate that TNP is divided into the first-level zone(the core conservation area,the ecological restoration area and the traditional utilization area)with definite targets of space management and the second-level zone with implementation of control *** method of functional zoning lays a solid foundation for the scientific planning of TNP;moreover,our study provides new insights into other national parks’functional zoning.

关键词： national parks Three-River-Source National Park(TNP) functional zoning index system space management

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Correction to: Full‑scale genetic pattern and environmental association of Actinidia chinensis populations across ten mountain systems in China, and its significance for conservation

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Tree Genetics & Genomes 2023年第1期20卷 1-1页

作者： Lu, Xue‑Mei Wang, Yan‑Chang Liu, Chuang Liao, Li Liu, Yongbo Zhang, Jian‑Wen Zhong, Cai‑Hong Li, Zuo‑Zhou Wuhan Botanical Garden Chinese Academy of Sciences Wuhan China Institute of Soil and Fertilizer Anhui Academy of Agricultural Sciences Hefei China State Environmental Protection Key Laboratory of Regional Eco‑process and Function Assessment Chinese Research Academy of Environmental Sciences Beijing China Xinjiang Bayingoleng Mongolian Autonomous Prefecture Academy of Agricultural Sciences Korla China

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Study on the sensitivity indicators by sandstorm PM₁₀ exposure

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Toxicology and environmental Health Sciences 2018年第1期10卷 65-71页

作者： Lv, Shihai Wang, Hong Mei Wang, Baolu Yu, Caihong State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Chaoyang District Beijing 100012 China State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental Sciences Chaoyang District Beijing 100012 China China University of Mining & Technology (Beijing) Beijing 100083 China

Objective: PM10 is one of the typical pollutants involved with sandstorm. More and more attentions on the sensitive bio-marks by PM10 exposure are attracted. This study is to probe the sensitivities indicators’ level... 详细信息

Objective: PM₁₀ is one of the typical pollutants involved with sandstorm. More and more attentions on the sensitive bio-marks by PM₁₀ exposure are attracted. This study is to probe the sensitivities indicators’ levels by sandstorm PM₁₀ exposure. Methods: A cross-sectional study involving administration on a survey 150 residents in Erlianhaote was performed. PM₁₀ concentrations collected on a daily basis from the local monitor stations from March to June, 2016 were employed as the daily environmental exposure levels (DEEL). Indicators of IGM, CRP, CC16, IL16, IGA, LGG, IGE and IL8 were assayed, as well as questionnaire for individual disease histories were done. Results: Results indicated that PM₁₀ exposure level was positively related to IGG, IGM, IGA, LGG and CRP, age was positively related to CRP and LGG, and history of cardiovascular disease was related to CRP by multi-factor line regression analysis. Further analysis revealed that levels of IGG (p<0.01) and IGM (p<0.05) increased in the group with PM₁₀ DEEL exceeded 200 μg/m³, compared to the group with the average exposure levels less than 200 μg/m³;while levels of IGM (p<0.05), IGA (p<0.05), LGG (p<0.05) and CRP (p< 0.01) were found higher in the group with PM₁₀ DEEL exceed 300 μg/m³, compare to the group with the levels less than 300 μg/m³. Conclusion: Our findings suggest that sandstorm PM₁₀ exposure might contribute to the changes of some immune and inflammation index. These findings provide clinical indicators for the sandstorm PM₁₀ exposure and help to understand the risk of sandstorm pollution. © The Korean Society of environmental Risk assessment and Health Science and Springer 2018.

关键词： Particle matter (PM10) Sandstorms Sensitivity indicators

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A National key R&D Program: Technologies and Guidelines for Monitoring ecological Quality of Terrestrial ecosystems in China

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Journal of Resources and ecology 2019年第2期10卷 105-111页

作者： WANG Shaoqiang WANG Junbang ZHANG Leiming XIAO Zhishu WANG Feng SUN Nan LI Daiqing CHEN Bin CHEN Jinghua LI Yue WANG Xiaobo WANG Miaomiao Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Chinese Academy of SciencesBeijing 100101 China College of Resources and Environment University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture. Institute of Zoology Chinese Academy of Sciences Beijing 100101 China Institute of Desertification Studies Chinese Academy of Forestry Beijing 100091 China Key Laboratory of Crop Nutrition and Fertilization Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing 100081 China State Environment Protection Key Laboratory of Regional Eco-process and Function Assessment State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing 100012 China

ecological quality is defined as the stability, adaptability and resilience of an ecosystem. Monitoring and assessing ecological quality are important bases for China’s ecological civilization construction. The national key research and development program "Technologies and guidelines for monitoring ecological quality of terrestrial ecosystems in China", launched in July 2017, includes plans to study the observation technologies and provide guidelines on the ecological in-situ observation, the regional biodiversity and ecosystem function monitoring and its applications, all of which contribute to national ecological quality assessment. A year after its implementation,some important progress has been achieved, such as building the indicator system for comprehensive monitoring of ecological quality and improvement of the methods, mass data transmission, infrared camera-based monitoring of biodiversity, multi-angle automatic spectral observation systems, and unmanned aerial vehicle(UAV) based desert monitoring. We have organized this special issue and attempted to introduce the monitoring techniques and assessment methods on ecological quality from different perspectives in order to further promote the development of ecology and its observation methods.

关键词： ecological quality ecological factors biodiversity ecosystem function monitoring technology monitoring guideli nes

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ecological pressures on grassland ecosystems and their conservation strategies in Northern China

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Chinese Journal of Population,Resources and Environment 2015年第1期13卷 87-91页

作者： Zhirong Zheng Chaoyang Feng Shengxing Ye Zhaoyan Diao Shihai Lü Department of Plant Biology and Ecology College of Life ScienceNankai University State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental Sciences(CRAES)

In this study,we identified ecological pressures on grassland ecosystems and adaptive countermeasures in Northern *** research revealed that the main sources of these pressures included population growth,economic development,resources exploitation,and global climate change,with human-related activities being overriding *** was an important reason for grassland imbalance,causing soil erosion and desertification,especially during the sensitive spring greening *** steppe zones,commercial coal mining was destructive to the ecological *** long-term strategies,we recommend that policy-makers devote more consideration to a new conceptual approach for transforming grasslands through shifting the focus from die grassland's traditional production functions to meir ecological *** this concept,adaptive countermeasures should be developed to reduce human impacts based on the environmental capacities of ***,we recommend the development of environment-friendly industries and reduction of pressures from human activities as effective measures for maintaining the balance between sustainable economic development and grassland ***,we suggest that restoration of degraded grasslands should conform to the principle of natural vegetation to further improve the ecological adaptability of plants and ecosystem *** study is expected to provide scientific support for policy-makers engaged in grassland protection.

关键词： grassland ecosystems ecological pressure Northern China conservation strategy

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An online spatio-temporal sudden pollution simulation system for the Songhua River,China

An online spatio-temporal sudden pollution simulation system...

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2016 IEEE International Conference of Online Analysis and Computing Science(ICOACS 2016)

作者： Gula Tang Bao Xiang Zhaoliang Li Yunqiang Zhu State Key Laboratory of Resources and Environmental Information Systems Institute of Geographical Sciences and Natural Resources ResearchChinese Academy of Sciences ICube(UMR 7357) UdSCNRS University of Chinese Academy of Sciences State Environment Protection key Laboratory of RegionalEco-process and Function Assessment Chinese Research Academy of Environmental Sciences

The Songhua River Pollution Control Project is one of the most significant water-related environmental pollution control schemes in Northeastern *** paper details the requirements,architecture,and main components of an online river sudden pollution simulation system（RSPSS） for scientific planning and decision making for a complicated natural river *** the basis of a service-oriented method and spatiotemporal simulation technology,the following components are developed:multi-platform,multi-level,dynamic,and flexible data services;task services that can be used by other online ArcGIS Server Silverlight Projects;and integrated third-party hydrodynamic and water quality models,which can simulate complex river networks under natural hydrological and climatic conditions *** the RSPSS,spatial and nonspatial datasets and functions are seamlessly integrated from distributed sources by standard ***,this system can support effective cross-regional and cross-departmental decisions.A study of a real-world implementation of the suggested system involving the historical sudden pollution of the Songhua River based on the RSPSS is also presented.

关键词： online services spatio-temporal simulation system architecture water quality model water pollution

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