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Erratum to: Decreased trophic position as a function of increasing body size of a benthic omnivorous fish from the largest freshwater lake in China

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Environmental Biology of Fishes 2011年第4期91卷 513-513页

作者： Wang, Yuyu Yu, Xiubo Xu, Jun Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China Graduate University of Chinese Academy of Sciences Beijing China Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and Biotechnology of China Institute of Hydrobiology Chinese Academy of Sciences Wuhan China

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Remote Sensing Indices to Measure the Seasonal Dynamics of Photosynthesis in a Southern China Subtropical Evergreen Forest

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Journal of Resources and Ecology 2019年第2期10卷 112-126页

作者： SUN Leigang WANG Shaoqiang Robert A.MICKLER CHEN Jinghua YU Quanzhou QIAN Zhaohui ZHOU Guoyi MENG Ze Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Hebei Engineering Research Center for Geographic Information Application Institute of Geographical SciencesHebei Academy of SciencesShijiazhuang 050011China School of Geography and Information Engineering China University of GeosciencesWuhan 430074China Department of Forestry and Environmental Resources North Carolina State UniversityRaleighNorth CarolinaUSA School of Environment and Planning Liaocheng UniversityLiaochengShandong 252059China South China Botanical Garden Chinese Academy of SciencesGuangzhou 510650China

The accurate measurement of the dynamics of photosynthesis in China’s subtropical evergreen forest ecosystems is an important contribution to carbon(C) sink estimates in global terrestrial ecosystems and their responses to climate change. Eddy covariance has historically been the only direct method to assess C flux of whole ecosystems with high temporal resolution, but it suffers from limited spatial resolution. During the last decade, continuous global monitoring of plant primary productivity from spectroradiometer sensors on flux towers and satellites has extended the temporal and spatial coverage of C flux observations. In this study, we evaluated the performance of two physiological remote sensing indices, fluorescence reflectance index(FRI) and photochemical reflectance index(PRI), to measure the seasonal variations of photosynthesis in a subtropical evergreen forest ecosystem using continuous canopy spectral and flux measurements in the Dinghushan Nature Reserve in southern *** more commonly used NDVI has been shown to be saturated and mainly affected by illumination(R^2=0.88, p <0.001), but FRI and PRI could better track the seasonal dynamics of plant photosynthetic functioning by comparison and are less affected by illumination(R^2=0.13 and R^2=0.51, respectively) at the seasonal scale. FRI correlated better with daily gross primary production(GPP) in the morning hours than in the afternoon hours, in contrast to PRI which correlated better with light-use efficiency(LUE) in the afternoon hours. Both FRI and PRI could show greater correlations with GPP and LUE respectively in the senescence season than in the recovery-growth season. When incident PAR was taken into account, the relationship between GPP and FRI was improved and the correlation coefficient increased from 0.22 to 0.69(p < 0.001). The strength of the correlation increased significantly in the senescence season(R^2=0.79, p < 0.001). Our results demonstrate the application of FRI and PRI as ph

关键词： fluorescence reflectance index(FRI) photochemical reflectance index(PRI) photosynthesis gross primary productivity(GPP) light-use efficiency(LUE) subtropical evergreen forest

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Advances in Quantifying Impact and Extent of Water-Land-Food Nexus for Food Security in Africa

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Agricultural Sciences 2022年第4期13卷 520-541页

作者： Auguste Cesar Itangishaka Yonghui Yang Kiril Manevski Huilong Li Telesphore Habiyakare Gratien Twagirayezu Jean Yves Uwamungu Christine Mushimiyimana Romaine Ingabire Hubert Hirwa Vincent Nzabarinda Key Laboratory of Agricultural Water Resources Hebei Laboratory of Agricultural Water-Saving Center for Agricultural Resources Research Institute of Genetics and Developmental Biology Chinese Academy of Sciences Shijiazhuang China University of Chinese Academy of Sciences Beijing China Department of Agroecology Aarhus University Tjele Denmark Sino-Danish Center for Education and Research Beijing China College of Resources and Environment Chinese Academy of Sciences Beijing China School of Environmental and Municipal Engineering Lanzhou Jiaotong University Lanzhou China Tianshui Normal University Tianshui China College of Bioengineering and Technology Tianshui Normal University Tianshui China Gansu Provincial Key Laboratory of Resource Utilization of Agricultural Solid Waste Tianshui Normal University Tianshui China China-Belarus Institute of Ecology and Environment Tianshui Normal University Tianshui China Key Laboratory of Ecosystem Network Observation and Modelling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi China

Food systems have the potential to promote human health and enhance environmental sustainability;yet most African countries have decadal starvation and malnourishment due to unstable food systems lacking basic nutritional profiles. To understand the key questions of the African food production and food security crisis, it is important to evaluate the past and the present balance of food production and consumption quantitatively and comprehensively and identify resource constraints. This continental study analyzed water-land-food (WLF) nexus in recent decades (1997-2017) and accessed whether these resources cope with different population growth projections, dietary changes and agricultural water management. The findings revealed that in 2017, total production in Africa for the four major crops was 83.3, 34.1, 21.0 and 26.7 million tons for, respectively, maize, rice, sorghum and wheat. Together with the imported food, 38 countries experienced an increase in kcal by food supply, while 7 countries encountered a decrease. However, only 6 countries were above the 1500 kcal∙capita⁻¹∙day⁻¹—the global average food consumption from the four major crops. The study also found that in the context of food production and out of the total African population, 268 million (21.6%) have enough land and water, 310 million (25.0%) is without enough land and water, further 279 million (22.5%) have enough water but not enough land, and 381 million (30.8%) encounter enough land but not enough water. This is the first WLF nexus study for the African continent and emphasizes the need for efficient and rapid changes in the food systems of the African population, both in production and consumption, in order to provide sustainable and secure food systems, and ultimately approach the first three Sustainable Development Goals.

关键词： Basic Dietary Requirements Cereal Import Dependency Ration Constraint Import Production Shortages Resource

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Corrigendum to "Carbon dioxide fertilization enhanced carbon sink offset by climate change and land use in Amazonia on a centennial scale" [Sci. Total Environ. 955 (2024) 176903]

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The Science of the total environment 2024年 956卷 177435页

作者： Bin Chen Xiyan Xu Shaoqiang Wang Te Yang Zhenhai Liu Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China. Electronic address: chenbin@***. Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China. Electronic address: xiyan.xu@***. Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China College of Resources and Environment University of Chinese Academy of Sciences Beijing China College of Geography and Information Engineering China University of Geosciences Wuhan China. College of Resources and Environment University of Chinese Academy of Sciences Beijing China.

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Sea Surface Wind Structure in the Outer Region of Tropical Cyclones Observed by Wave Gliders

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Journal of Geophysical Research: Atmospheres 2023年第3期128卷 e2022JD037235-e2022JD037235页

作者： Tian, Di Zhang, Han Wang, Shuai Zhang, Wenyan Sun, Xiujun Zhou, Ying Zheng, Gang Jiang, Han Yang, Shili Zhou, Feng State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography Ministry of Natural Resources Hangzhou China Observation and Research Station of Yangtze River Delta Marine Ecosystems Ministry of Natural Resources Zhoushan China Key Laboratory of Ocean Space Resource Management Technology Ministry of Damage the Coastal Ecosystem Natural Resources Marine Academy of Zhejiang Province Hangzhou China Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) Zhuhai China Program in Atmospheric and Oceanic Sciences Princeton University Princeton NJ United States Institute of Coastal Systems - Analysis and Modeling Helmholtz-Zentrum Hereon Geesthacht Germany Physical Oceanography Laboratory Ocean University of China Qingdao China Institute for Advanced Ocean Study Ocean University of China Qingdao China Beijing Meteorological Observation Centre Beijing Meteorological Bureau Beijing China Ocean College Zhejiang University Zhoushan China

Understanding the sea surface wind structure during tropical cyclones (TCs) is the key for study of ocean response and parameterization of air-sea surface in numerical simulation. However, field observations are scarce. In 2019, three wave gliders were deployed in the South China Sea and the adjacent Western Pacific region, which acquired sea surface wind structure of eight TCs. Analysis of the field data suggests that the wave glider-observed surface winds are consistent with most analysis/reanalysis data (i.e., ERA5, Cross-Calibrated Multi-Platform, and National Centers for Environmental Prediction-Global Data Assimilation System) and Soil Moisture Active Passive. Both wave glider observations and analysis/reanalysis data indicate that TC wind fields induce an obvious increase in speed toward the sea surface together with a sharp change in direction, showing an asymmetric wind structure which is sensitive to TC translation speed and intensity. Larger mean values of wind speed and inflow angle are located on the right side along TC tracks. The inflow angle shows a highly dynamic dependence on the radial distance from the TC center, the TC intensity, as well as the TC-relative azimuth. Comparisons between field observations and theoretical models indicate that the most widely used, ideal TC wind profile models can largely represent the observed sea surface wind structure, but generally underestimate the wind speed due to lack of consideration of background wind. Moreover, simple ideal models (e.g., the modified Rankine vortex model) may outperform complex models when accurate information of TCs is limited. Wave glider observations have potential for better understanding of air-sea exchanges and for improvements of the corresponding parameterization schemes. © 2023. American Geophysical Union. All Rights Reserved.

关键词： ideal wind model inflow angle sea surface wind tropical cyclone wave glider

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Polycyclic Aromatic Hydrocarbons in Ethiopian Soils: Distribution, Sources, and Implication from Energy Consumption Structures

SSRN

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SSRN 2024年

作者： Shan, Xinyue Yuan, Wang Song, Shuai Wu, Qiang Li, Fadong Chen, Gang Yang, Shengjie Su, Chao Hirwa, Hubert State Key Laboratory of Urban and Regional Ecology Research Centre for Eco-Environmental Sciences Chinese Academy of Sciences Beijing100085 China College of Urban and Environmental Sciences Central China Normal University Wuhan430079 China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China Department of Civil & Environmental Engineering College of Engineering Florida A&M University Florida State University Tallahassee32307 United States Department of Ecology School of Life Sciences Nanjing University Nanjing210023 China Institute of Loess Plateau Shanxi University Taiyuan030006 China Sustainability Institute School of the Environment Florida A&M University TallahasseeFL32307 United States P.O Box 6392 Kigali Rwanda College of Resources and Environment University of Chinese Academy of Sciences Beijing100101 China State Key Laboratory of Urban and Regional Ecology China Michigan State University United States

Polycyclic aromatic hydrocarbons (PAHs), a ubiquitous substance in the environment, are closely associated with human energy consumption, which can be released to the environment from incomplete biomass combustion or emitted from petroleum. There is currently a knowledge gap on the relationships between energy consumption structures (ECSs) and PAH contamination, especially in African countries. This study investigated the distribution, sources, and risks of 16 prioritized PAH compounds (Σ16PAHs) in Ethiopian soils, and explored the impact of ECSs on PAH contamination. The concentrations of Σ16PAHs ranged from 12.51 to 435.67 ng/g, descending across an urban-rural gradient. Based on diagnostic ratios and positive matrix factorization (PMF) model, biomass combustion was the most important source. By comparing the ECSs and PAH concentrations in African countries, it was found that differences in ECSs shaped the diverse patterns of sources and concentrations of PAHs in Africa. The results of incremental lifetime cancer risk assessment suggested PAHs posed a low risk to children, adolescents, and adults. The Ethiopian government has been making continuous efforts to develop cleaner energy and optimize ECSs to decrease soil PAH concentrations and reduce potential risks. This study will provide support for Ethiopia to improve energy structure management. © 2024, The Authors. All rights reserved.

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Vegetation Rather than Climate Dominate the Bowen Ratio Over Terrestrial ecosystems of China

SSRN

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SSRN 2023年

作者： Sun, Mingyu Yu, Guirui Chen, Zhi Zhu, Xianjin Zhang, Weikang Han, Lang Liu, Zhaogang Ma, Lexin Dou, Xiaojun Yao, Yuan Wang, Jilong Luo, Wenxing Lin, Yong Chen, Shiping Deng, Zhengmiao Dong, Gang Du, Hu Gao, Yanhong Gu, Fengxue Hao, Xiangxiang Hao, Yanbin He, Qihua He, Yongtao He, Jinsheng Ji, Xibin Jiang, Shicheng Jiang, Zhengde Li, Xinhu Li, Yingnian Li, Yuqiang Li, Yuzhe Liu, Ran Liu, Shaomin Luo, Weijun Mo, Xingguo Sha, Liqing Shi, Peili Song, Qinghai Sun, Dan Tan, Junlei Tang, Yakun Wang, Fei Wang, Huimin Wang, Jianlin Wei, Wenxue Wu, Jiabing Wu, Zhixiang Xin, Xiaoping Yan, Junhua Zhang, Fawei Zhang, Yangjian Zhang, Yiping Zhang, Yucui Zhao, Fenghua Zhao, Liang Zhou, Li Zhu, Jiaojun Zhu, Zhilin Institute of Surface-Earth System Science School of Earth System Science Tianjin University Tianjin300072 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 Chinese Academy of Sciences Beijing100049 China Beijing Yanshan Earth Critical Zone National Research Station University of Chinese Academy of Sciences Beijing101408 China College of Agronomy Shenyang Agricultural University Shenyang100161 China Tianjin Bohai Rim Coastal Earth Critical Zone National Observation and Research Station Tianjin University Tianjin300072 China State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing100093 China Key Laboratory for Agro-ecological Processes in Subtropical Region Institute of Subtropical Agriculture Chinese Academy of Sciences Changsha410125 China Shanxi University Taiyuan030006 China Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Lanzhou730000 China Institute of Environment and Sustainable Development in Agriculture Chinese Academy of Agricultural Sciences Beijing100081 China Center for Agricultural Technology Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Harbin150081 China University of Chinese Academy of Sciences Beijing100049 China Chengdu Institute of Biology Chinese Academy of Sciences Chengdu610041 China Institute of Ecology College of Urban and Environmental Sciences Key Laboratory for Earth Surface Processes the Ministry of Education Peking University Beijing100871 China State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems College of Pastoral Agriculture Science and Technology Lanzhou University Lanzhou China School of Life Sciences Northeast Normal University Changchun130024 China Institute of Applied Ecology Chinese

Bowen ratio (β) is the ratio of sensible heat (H) to latent heat (LE), which reflected the energy balance and partitioning process between soil, vegetation, and atmosphere. Revealing the spatial patterns of β would benefit understanding the variation of energy partitioning in terrestrial ecosystems and its reciprocal relationship with environmental change. Here, we calculated β by integrating sensible and latent heat flux values from 80 flux observation sites based on eddy covariance method in ChinaFLUX to analyze the spatial pattern and dominant factors of β in China. Results showed that terrestrial ecosystems in China had an average β of 0.64±0.47, suggesting the strong regulating effect of ecosystems on the radiative warming in China. β significantly varied with ecosystem types in which desert has the highest β (2.08) while wetland showed the lowest β (0.37). β of terrestrial ecosystems in China showed a significant latitudinal pattern, increasing linearly with the increase of latitude, and showed specific patterns in forest and cropland ecosystems. However, β did not present a clear longitudinal and vertical pattern in different ecosystems except cropland. The spatial pattern of β was dominated by vegetation factors including gross primary productivity (GPP). However, the dominant role of vegetation factors varied with the climate and soil conditions, which showing that the dominant role of GPP gradually decreased from the hot and humid subtropical evergreen broad-leaved forest region to the low temperature arid temperate desert region. These findings demonstrated the spatial variation and its mechanism of terrestrial ecosystems β and provided insight into the future of vegetation mitigation of global climate change. © 2023, The Authors. All rights reserved.

关键词： Heat flux

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Slope Position Mediates the Co-Utilization of Phosphorus by Plants and Microbes Through Rhizosphere Processes in a Phosphorus-Limited Forest

SSRN

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SSRN 2022年

作者： Qiu, Tianyi Yu, Jialuo He, Liyuan Liu, Ji Cui, Qingliang Cui, Yongxing Duan, Chengjiao Zhao, Shuling Wang, Yunqiang Fang, Linchuan College of Natural Resources and Environment Northwest A&F University Shaanxi Yangling712100 China Key Laboratory of Ecosystem Network Observation and Modelling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China Biology Department San Diego State University San DiegoCA United States Hubei Province Key Laboratory for Geographical Process Analysis and Simulation Central China Normal University Wuhan430079 China State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Soil and Water Conservation CAS and MWR Yangling712100 China Sino-French Institute for Earth System Science College of Urban and Environmental Sciences Peking University Beijing100871 China State Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi’an710061 China CAS Center for Excellence in Quaternary Science and Global Change Chinese Academy of Sciences Xi’an710061 China

Phosphorus (P) limitation hinders ecological restoration in vulnerable ecosystems, particularly in severely eroded forests. Slope position and rhizosphere effect (RE) are two critical drivers of biological P utilization, but their unknown potential interaction limits the improvement of ecological restoration under P limitation. To bridge this gap, we investigated the interaction on plant–microbe P utilization by quantifying the REs at different slope positions (top, middle, and bottom) in a typical artificial forest ( Robinia pseudoacacia ) of the Loess Plateau, China. The results showed that: (1) most of the positive REs increased by 1.5 to 5.6 times with decreasing slope position, which reversed the resource distribution trend along the slope. (2) Plant and microbial P limitation exhibited contrasting patterns due to nutrient competition (standardized slope = –0.746, P © 2022, The Authors. All rights reserved.

关键词： Phosphorus

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Corrigendum to “Direct and legacy effects of genotypic diversity on population performance of Hydrocotyle vulgaris ” [Ecol. Indic. 144 (2022) 109570]

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Ecological Indicators 2023年 146卷

作者： Ghazala Begum Jun-Qin Gao Ming-Hua Song Wei Xue Fei-Hai Yu School of Ecology and Nature Conservation Beijing Forestry University Beijing 100083 China Institute of Wetland Ecology & Clone Ecology/Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation Taizhou University Taizhou 318000 China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences A11 Datun Road Chaoyang District Beijing 100101 China

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Correction: More than just a mental stressor: psychological value of social distancing in COVID-19 mitigation through increased risk perception-a preliminary study in China

Humanities & social sciences communications

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Humanities & social sciences communications 2021年第1期8卷 277页

作者： Yuanchao Gong Linxiu Zhang Yan Sun Key Laboratory of Behavioral Science Institute of Psychology Chinese Academy of Sciences Beijing China. Department of Psychology University of Chinese Academy of Sciences Beijing China. Laboratory of Ecosystem Network Observation and Simulation Institute of Geosciences and Resources Chinese Academy of Sciences Beijing China. The United Nations Environment Programme-International Ecosystem Management Partnership Beijing China.

[This corrects the article DOI: 10.1057/s41599-021-00774-1.].

关键词： Psychology Social policy

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