检索结果-内蒙古大学图书馆

Journal of Plant Ecology 2024年第3期17卷 104-114页

作者： Qianxin Jiang Juntao Zhu Peili Shi Yunlong He Yangjian Zhang Jun Yan Wendong Xie Ning Zong Ge Hou Ruonan Shen Jiahe Zheng Key Laboratory of Ecosystem Network Observation and Modelling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100190China Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of SciencesBeijing 100101China Nagqu Agricultural and Animal Husbandry Science and Technology Research and Promotion Center Nagqu 852000China

不对称季节性增温,即冬季的温度增加明显高于夏季,已成为全球变暖的一个重要特征,尤其在寒冷和高海拔地区。过去的研究主要关注全年的温度增高,而对冬季增温的关注相对较少。然而,关于冬季增温对生态系统功能的影响存在显著的知识空缺... 详细信息

不对称季节性增温,即冬季的温度增加明显高于夏季,已成为全球变暖的一个重要特征,尤其在寒冷和高海拔地区。过去的研究主要关注全年的温度增高,而对冬季增温的关注相对较少。然而,关于冬季增温对生态系统功能的影响存在显著的知识空缺。为了解决这个问题,我们在青藏高原的高寒草甸进行了为期8年的控制增温实验,设置3种处理:自然对照、全年增温和冬季增温。结果发现,无论是全年增温还是冬季增温都没有显著改变群落水平的物种丰富度。值得注意的是,通过物种异步性,群落生物量的稳定性得以维持。然而,增温对植物丰度组(优势种、常见种和稀有种)产生了显著影响。具体而言,冬季增温增强了优势种的稳定性,这是通过增加优势种的物种异步性,即禾本科植物和非禾本科杂草植物之间发生了补偿动态来实现的。相反,全年增温降低了常见种的稳定性,这与常见种丰富度的增加和常见种中异步性的下降相关。因此,本研究强调了高寒草甸在不同增温条件下通过物种异步动态来维持群落生物量稳定性的能力,这些研究结果为理解青藏高原高寒草甸生态系统特征提供了新见解。

关键词：不对称季节性增温优势种生态水平物种异步性时间稳定性冬季增温

来源：评论

学校读者我要写书评

暂无评论

中国碳收支:1980~2021年

引用

Science Bulletin 2024年第1期69卷 114-124页

作者：夏晓圣任培阳王旭辉刘丹陈修治丹利何斌何洪林居为民梁敏琪陆星劼彭静覃章才夏江周郑博魏静乐旭于贵瑞朴世龙袁文平 School of Atmospheric Sciences Guangdong Province Data Center of Terrestrial and Marine Ecosystems Carbon CycleSun Yat-sen UniversityZhuhai 510245China Sino-French Institute for Earth System Science College of Urban and Environmental SciencesPeking UniversityBeijing 100091China State Key Laboratory of Tibetan Plateau Earth System Resources and EnvironmentInstitute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Earth Surface Processes and Resource Ecology College of Global Change and Earth System ScienceBeijing Normal UniversityBeijing 100875China Synthesis Research Center of China’s Ecosystem Research Network Key Laboratory of Ecosystem Network Observation and ModelingInstitute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China International Institute for Earth System Science Nanjing UniversityNanjing 210023China Tianjin Key Laboratory of Water Resources and Environment Tianjin Normal UniversityTianjin 300387China Institute of Environment and Ecology Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science&TechnologyNanjing 210044China

As one of the world's largest emitters of greenhouse gases,China has set itself the ambitious goal of achieving carbon peaking and carbon ***,it is crucial to quantify the magnitude and trend of sources and sinks of atmospheric carbon dioxide(CO_(2)),and to monitor China's progress toward these *** state-of-the-art datasets and models,this study comprehensively estimated the anthropogenic CO_(2)emissions from energy,industrial processes and product use,and waste along with natural sources and sinks of CO_(2)for all of China during *** recognize the differences among various methods of estimating greenhouse emissions,the estimates are compared with China's National Greenhouse Gas Inventories(NGHGIs)for 1994,2005,2010,2012,and *** CO_(2)emissions in China have increased by 7.39 times from 1980 to 12.77 Gt CO_(2)a^(-1)in *** benefiting from ecological projects(e.g.,Three Norths Shelter Forest System Project),the land carbon sink in China has reached 1.65 Gt CO_(2)a^(-1)averaged through 2010-2021,which is almost 15.81 times that of the carbon sink in the *** average,China's terrestrial ecosystems offset 14.69%±2.49%of anthropogenic CO_(2)emissions through *** provincial-level administrative regions of China,Xizang and Qinghai,have achieved carbon neutrality according to our estimates,but nearly half of the administrative regions of China have terrestrial carbon sink offsets of less than 10%of anthropogenic CO_(2)*** study indicated a high level of consistency between NGHGIs and various datasets used for estimating fossil CO_(2)emissions,but found notable differences for land carbon *** estimates of the terrestrial carbon sinks of NGHGIs urgently need to be verified with process-based models which integrate the comprehensive carbon cycle processes.

关键词： CO_(2)emission Land carbon sink China Carbon neutrality Carbon budget

来源：评论

学校读者我要写书评

暂无评论

Nutrient Addition Alters Drought Resistance and Resilience Via Forb Abundance in a Temperate Grassland

SSRN

引用

SSRN 2024年

作者： Luo, Dengnan Yang, Guojiao Zhang, Guangru Liu, Qianguang Guo, Qun Li, Shenggong Xie, Yun Hu, Zhongmin Facility of Geographical Science Beijing Normal University Beijing100875 China College of Arts and Sciences Beijing Normal University at Zhuhai Zhuhai519087 China Hainan Baoting Tropical Rainforest Ecosystem Observation and Research Station School of Ecology Hainan University Haikou570228 China School of Geography South China Normal University Guangzhou510631 China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China College of Resources and Environment University of the Chinese Academy of Sciences Beijing101408 China National Ecosystem Science Data Center Beijing100101 China

Nutrient addition has resulted in profound effects on grassland ecosystems. Yet, the response and ecological mechanisms of grassland ecosystem resistance and resilience in relation to nutrient inputs are not fully understood. We investigated the effects of nutrient addition on resistance and resilience of a temperate grassland during a severe drought event. Our findings demonstrated that nutrient addition significantly alters ecosystem resistance and resilience. The resistance of both the community and forb was decreased by nitrogen (N) addition, while only forb resistance was significantly decreased under phosphorus (P) addition. Interestingly, N addition also hindered the community and forb resilience, whereas community resilience significantly enhanced under P addition. Unexpectedly, even although nutrient addition significantly affected grass biomass, grass resistance and resilience were not significantly altered by nutrient addition. Conversely, forb biomass was not significantly influenced by nutrient addition, but there was a noticeable decrease in forb abundance. Furthermore, structural equation models revealed that nutrient addition affect community drought resistance and resilience by altering the stability dimension of functional groups via forb abundance. Our outcomes highlight the crucial function of forbs in sustaining grassland ecosystem stability in the face of global change. Moreover, it provides crucial scientific evidence for the scientific management and sustainable preservation of ecosystem services in grassland ecosystems under global change. © 2024, The Authors. All rights reserved.

关键词： Drought

来源：评论

学校读者我要写书评

暂无评论

Influences on Phosphorus Availability in Temperate and Subtropical Forest Soils

SSRN

引用

SSRN 2022年

作者： Liu, Shuang Zhang, Xinyu Dungait, Jennifer A.J. Wang, Jing Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China College of Resources and Environment University of Chinese Academy of Sciences Beijing100190 China Geography College of Life and Environmental Sciences University of Exeter Rennes Drive ExeterEX4 4RJ United Kingdom

Phosphorus (P), an essential element for life and ecosystem function, is a limiting element for plants and microorganisms in forest soil profiles. P availability is affected by three main mechanisms, namely the dissolution of H + , mineralization of enzymes, and assimilation by phosphate-solubilizing microorganisms (PSMs). The effects of these three mechanisms on P availability vary across different forest biomes because of variability in the soil properties, microbial communities, and interactions in the soil. In this study, we investigated how the physical, chemical, and biological properties of temperate and subtropical forest soils affected the P availability. Using a structural equation model, we found that enzyme mineralization (1.38) had most effect on the available P in these forest soils, followed by PSMs assimilation (0.76), and H + dissolution (0.42). The available P content was higher in the temperate forest soil than in the subtropical forest soil, and the available P decreased with depth in the soil profiles, and was highest in the topsoils and lowest in the subsoils. The enzyme mineralization (acid phosphomonoesterase-V max ) gave good predictions of the available P in the P-poor subtropical forest soil, in line with the economic principles of enzymes. The available P and N contents were positively correlated in the subtropical forest soil, representing a trade-off between the N and P availabilities. The DNA content was the strongest predictor of the available P in the P-rich temperate forest, indicating that PSMs could acquire large quantities of P selectively and store it for potential microbial P sources. Our meta-analysis showed that there was a positive linear relationship between the MBP and available P contents in forest soils worldwide. We also found that the pH had a positive effect on the alkaline phosphomonoesterase-V max and indirectly affected the P availability, which indicates that the enzyme mineralization and the P availability would

关键词： Phosphorus

来源：评论

学校读者我要写书评

暂无评论

Soil moisture alters the responses of alpine ecosystem productivity to environmental factors, especially VPD, on the Qinghai-Tibetan Plateau

引用

Science of the Total Environment 2024年 947卷 174518页

作者： Zhang, Tao Shan, Baoxin Xu, Mingjie Zhao, Guang Zheng, Zhoutao Tang, Yuanyuan Chen, Ning Zhu, Juntao Cong, Nan Niu, Ben Zhang, Yangjian College of Agronomy Shenyang Agricultural University Shenyang110866 China School of Life Sciences Hebei University Baoding071002 China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China Key Laboratory of Forest Ecology and Management Institute of Applied Ecology Chinese Academy of Sciences Shenyang110016 China College of Resources and Environment University of Chinese Academy of Sciences Beijing100190 China Jilin Meteorological Observatory Changchun130062 China

Water availability, which can be represented by soil water content (SWC), plays a crucial role in plant growth and productivity across the cold and arid Qinghai-Tibetan Plateau. However, the indirect effects of SWC are less well understood, and a more comprehensive understanding of its regulating effects may enhance the recognition of its importance, as this factor is pivotal for accurately predicting the future response of alpine ecosystems to climate change. In this study, in situ eddy covariance observation data from typical alpine ecosystems and satellite data covering the Qinghai-Tibetan region were used to comprehensively reveal the effects of SWC on ecosystem productivity. The results indicated that SWC played an important role in regulating the responses of gross primary productivity (GPP) to other environmental factors over both time and space, especially in terms of the responses of GPP to vapor pressure deficit (VPD). The regulating effect can be summarized as follows: there was a specific SWC value (SWC = 0.24 m3 m−3 on the Qinghai-Tibetan Plateau) above which SWC was no longer the primary limiting factor. The responses of GPP to certain environmental factors shifted from negative to positive when the SWC increased above this value. The responses of GPP to VPD exhibited the highest sensitivity to the regulating effects of SWC, with a general response pattern found across different temporal and spatial scales. The findings revealed divergent responses of GPP to environmental factors under different SWC conditions and between arid and humid regions, emphasizing the importance of soil water conditions. These findings suggest that water conditions should be given primary consideration in global change studies. © 2024

关键词： Climate change

来源：评论

学校读者我要写书评

暂无评论

Multifunctionality and Thresholds of Alpine Grassland on the Tibetan Plateau

引用

Journal of Resources and Ecology 2020年第3期11卷 263-271页

作者： SONG Minghua LI Meng HUO Jiajuan WU Liang ZHANG Xianzhou Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of ScienceBeijing 100101China Department of Ecology School of Ecology and EnvironmentInner Mongolia UniversityHohhot 010021China Center for World Geography and Resources Research Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China

ecosystems can simultaneously provide multiple functions and services. Knowledge on the combinations of such multi-dimensional functions is critical for accurately assessing the carrying capacity and implementing sustainable management. However, accurately quantify the multifunctionality of ecosystems remains challenging due to the dependence and close association among individual functions. Here, we quantified spatial patterns in the multifunctionality of alpine grassland on the Tibetan Plateau by integrating four important individual functions based on data collected from a field survey and remote sensing NDVI. After mapping the spatial pattern of multifunctionality, we extracted multifunctionality values across four types of grassland along the northern Tibet Plateau transect. Effects of climate and grazing intensity on the multifunctionality were differentiated. Our results showed that the highest values of multifunctionality occurred in the alpine meadow. Low values of multifunctionality were comparable in different types of grassland. Annual precipitation explained the large variation of multifunctionality across the different types of grassland in the transect, which showed a significantly positive effect on the multifunctionality. Grazing intensity further explained the rest of the variation in the multifunctionality(residuals), which showed a shift from neutral or positive to negative effects on multifunctionality across the different types of grassland. The consistently rapid declines of belowground biomass, SOC, and species richness resulted in the collapse of the multifunctionality as bare ground cover amounted to 75%, which corresponded to a multifunctionality value of 0.233. Our results are the first to show the spatial pattern of grassland multifunctionality. The rapid decline of the multifunctionality suggests that a collapse in the multifunctionality can occur after the vegetation cover decreases to 25%, which is also accompanied by rapid losses of

关键词： individual functions multifunctionality grazing intensity alpine grassland vegetation cover

来源：评论

学校读者我要写书评

暂无评论

Aridity modulates grassland biomass responses to combined drought and nutrient addition

引用

Nature Ecology and Evolution 2025年 1-10页

作者： Bondaruk, V.F. Xu, C. Wilfahrt, P. Yahdjian, L. Yu, Q. Borer, E.T. Jentsch, A. Seabloom, E.W. Smith, M.D. Alberti, J. Oñatibia, G.R. Dieguez, H. Carbognani, M. Kübert, A. Power, S.A. Eisenhauer, N. Isbell, F. Auge, H. Chandregowda, M.H. Churchill, A.C. Daleo, P. Forte, T. Greenville, A.C. Koerner, S.E. Ohlert, T. Peri, P. Petraglia, A. Salesa, D. Tedder, M. Valdecantos, A. Verhoeven, E. Wardle, G.M. Werner, C. Wheeler, G.R. An, H. Biancari, L. Diao, H.J. Gutknecht, J. Han, L.B. Ke, Y.G. Liu, J.L. Maziko, Y. Tian, D.S. Tissue, D. Wanke, S. Wei, C.Z. Wilkins, K. Wu, H.H. Young, A.L. Zhang, F.W. Zhang, B. Zhu, J.T. Zong, N. Zuo, X.A. Hautier, Y. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA) CONICET-Universidad de Buenos Aires Buenos Aires Argentina Facultad de Agronomía Departamento de Recursos Naturales y Ambiente Cátedra de Ecología Universidad de Buenos Aires Buenos Aires Argentina Disturbance Ecology and Vegetation Dynamics Bayreuth Center of Ecology and Environmental Research (BayCEER) University of Bayreuth Bayreuth Germany State Key Laboratory of Efficient Utilization of Arable Land in China Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing China Key Laboratory of Arable Land Quality Monitoring and Evaluation Ministry of Agriculture and Rural Affairs Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing China Department of Ecology Evolution and Behavior University of Minnesota St. Paul MN United States School of Grassland Science Beijing Forestry University Beijing China State Key Laboratory of Efficient Production of Forest Resources Beijing Forestry University Beijing China Department of Biology Colorado State University Fort Collins CO United States Instituto de Investigaciones Marinas y Costeras (IIMyC) UNMDP – CONICET Mar del Plata Argentina Departamento de Métodos Cuantitativos y Sistemas de Información Facultad de Agronomía Universidad de Buenos Aires Buenos Aires Argentina Department of Chemistry Life Sciences and Environmental Sustainability University of Parma Parma Italy Ecosystem Physiology University of Freiburg Freiburg Germany Institute for Atmospheric and Earth System Research / Physics University of Helsinki Helsinki Finland Hawkesbury Institute for the Environment Western Sydney University Penrith NSW Australia German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig Leipzig Germany Institute of Biology Leipzig University Leipzig Germany Department of Community Ecology Helmholtz-Centre for Envi

Plant biomass tends to increase under nutrient addition and decrease under drought. Biotic and abiotic factors influence responses to both, making the combined impact of nutrient addition and drought difficult to predict. Using a globally distributed network of manipulative field experiments, we assessed grassland aboveground biomass response to both drought and increased nutrient availability at 26 sites across nine countries. Overall, drought reduced biomass by 19% and nutrient addition increased it by 24%, resulting in no net impact under combined drought and nutrient addition. Among the plant functional groups, only graminoids responded positively to nutrients during drought. However, these general responses depended on local conditions, especially aridity. Nutrient effects were stronger in arid grasslands and weaker in humid regions and nitrogen-rich soils, although nutrient addition alleviated drought effects the most in subhumid sites. Biomass responses were weaker with higher precipitation variability. Biomass increased more with increased nutrient availability and declined more with drought at high-diversity sites than at low-diversity sites. Our findings highlight the importance of local abiotic and biotic conditions in predicting grassland responses to anthropogenic nutrient and climate changes. © The Author(s), under exclusive licence to Springer Nature Limited 2025.

关键词：

来源：评论

学校读者我要写书评

暂无评论

CHARACTERISTICS OF NATURAL ABUNDANCE OF SOIL 15N ON THE QINGHAI-TIBETAN PLATEAU OF CHINA

CHARACTERISTICS OF NATURAL ABUNDANCE OF SOIL 15N ON THE QING...

引用

2010年亚洲通量网会议(Asiaflux workshop2010)

作者： Shaoqiang Wang Lei Zhou Jiangwen Fan Jiyuan Liu Lupeng Gao Zhongmin Hu Bin Chen Weixing Wu Ting Song Key Laboratory of Ecosystem Network Observation and Modelling Institute of Geographical Sciences and Natural Resources ResearchBeijingP.R.China School of Geography and Earth SciencesMcMaster UniversityHamiltonCanada Insitute of Mountain Hazards and EnvironmentChengduP.R.China

来源：评论

学校读者我要写书评

暂无评论

Soil Moisture Drives the Spatiotemporal Patterns of Asymmetry in Vegetation Productivity Responses to Dry and Wet Years Across China

SSRN

引用

SSRN 2022年

作者： Chang, Qingqing He, Honglin Ren, Xiaoli Zhang, Li Feng, Lili Lv, Yan Zhang, Mengyu Xu, Qian Liu, Weihua Zhang, Yonghong Wang, Tianxiang Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China National Ecological Science Data Center Beijing100101 China University of Chinese Academy of Sciences Beijing100049 China College of Resources and Environment University of Chinese Academy of Sciences Beijing100049 China State Key Laboratory of Grassland Agro-ecosystems School of Ecology Lanzhou University Gansu Lanzhou730000 China

Increasingly drastic global change is expected to cause hydroclimatic changes, which will influence vegetation productivity and pose a threat to the terrestrial carbon sink. Asymmetry represents an imbalance between vegetation growth and loss of growth during dry and wet periods, respectively. However, the mechanisms of asymmetric plant responses to hydrological changes remain poorly understood. Here, we examined the spatiotemporal patterns of asymmetric responses of vegetation productivity across terrestrial ecosystems in China. We analyzed several observational and satellite-based datasets of plant productivity and several reanalyzed datasets of hydroclimatic variables from 2001 to 2020, and used a random forest model to assess the importance of hydroclimatic variables for these responses. Our results showed that the productivity of >50% of China’s vegetated areas showed a more positive asymmetry (2.3 ± 9.4%) over the study period, which were distributed broadly in northwest China (mainly grasslands and sparse vegetation ecosystems). Negative asymmetries were most common in forest ecosystems in northeast China. We demonstrated that one-third of vegetated areas tended to exhibit significant changes in asymmetry during 2001–2020. The trend towards stronger positive asymmetry (0.95% yr-1) was higher than that towards stronger negative asymmetry (-0.55% yr-1), which is beneficial for the carbon sink. We further showed that in China, soil moisture was a more important driver of spatiotemporal changes on asymmetric productivity than precipitation. We identified thresholds of surface soil moisture (20–30%) and root-zone soil moisture (200–350 mm) that were associated with changes in asymmetry. Our findings highlight the necessity of considering the dynamic responses of vegetation to hydrological factors in order to fully understand the physiological growth processes of plants and avoid the possible loss of productivity due to future climate change. © 2022, The Authors. A

关键词： Productivity

来源：评论

学校读者我要写书评

暂无评论

How will climate change affect the sources of global irrigation water withdrawal?

引用

Science Bulletin 2024年第21期69卷 3361-3364页

作者： Zhipin Ai Xin Zhao Julien Boulange Fadong Li Rashid Mahmood Qiuying Zhang Yonghui Yang Jun Xia Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 101408China Earth System Division National Institute for Environmental StudiesTsukuba 305-8506Japan United Graduate School of Agricultural Science Tokyo University of Agriculture and TechnologyTokyo 183-8509Japan Water Engineering and Management Asian Institute of TechnologyPathumthani 12120Thailand Chinese Research Academy of Environmental Sciences Beijing 100012China Center for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China State Key Laboratory of Water Resources Engineering and Management Wuhan UniversityWuhan 430072China

Irrigation plays a vital role in global food production,contributing approximately 40%of the total production[1],although the contribution varies by crop type[2,3].However,irrigation water withdrawal constitutes 65%–70%of total global anthropogenic water withdrawal[4,5],making it the largest water-use sector *** irrigation water demand,sources,and availability,particularly in the context of climate change,is crucial for identifying potential threats to crop production and ensuring future global food *** studies have focused extensively on the impacts of climate change on irrigation water demand and withdrawal[6–9];however,it remains unclear how climate change will affect the sources of irrigation water withdrawal.

关键词： irrigation withdrawal sources

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：