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Ecological sustainability assessment of the carbon footprint in Fujian Province,southeast China

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Frontiers of Earth Science 2021年第1期15卷 12-22页

作者： jingyu zeng Rongrong ZHANG Jia TANG Jingchen LIANG Jinghan LI Yue zeng Yefan LI Qing ZHANG Wei SHUI Qianfeng WANG Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster Protection/College of Environment and Resource Fuzhou UniversityFuzhou 350116China Key Laboratory of Spatial Data Mining&Information Sharing(Ministry of Education of China) Fuzhou 350116China Joint Global Change Research Institute Pacific Northwest National Laboratory and University of MarylandCollege ParkMD 20740USA Key Laboratory of Digital Earth Science Institute of Remote Sensing and Digital EarthChinese Academy of SciencesBeijing 100094China College of Geography and Tourism Anhui Normal UniversityWuhu 241000China

China’s rapid economic development has initiated the deterioration of its ecological environment,posing a threat to the sustainable development of human *** a result,an assessment of regional sustainability is *** paper researches China’s most forested province,Fujian Province,as the study *** proposed a grid-based approach to assess the regional carbon footprint in accordance with the Intergovernmental Panel on Climate Change’s(IPCC)carbon emission *** method of assessment also introduced carbon emission indicators with our improved and published Net Primary Production(NPP)based on process *** carbon footprint in Fujian Province from 2005-2017 was calculated and examined from a spatiotemporal *** indicators were used in the sustainability *** research draws the following conclusions:1)the carbon footprint in the eastern regions of Fujian Province was higher due to rapid economic development;2)that of the western regions was lower;3)an uptrend in the carbon footprint of Fujian Province was *** five ecological indicators based on carbon emissions and economic and social data showed an ecologically unsustainable trend over 13 years in the research area due to unsustainable economic ***,it is urgent to balance the relationship between economic development and environmental *** research provides scientific references for achieving ecological civilization and sustainability in a similar region.

关键词： Fujian Province carbon emission carbon footprint ecological index sustainable development

A modified flexible spatiotemporal data fusion model

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Frontiers of Earth Science 2020年第3期14卷 601-614页

作者： Jia Tang jingyu zeng Li Zhang Rongrong Zhang Jinghan Li Xingrong Li Jie Zou Yue zeng Zhanghua Xu Qianfeng Wang Qing Zhang Key Laboratory of Remote Sensing of Soil Erosion and Disaster Protection College of Environment and ResourcesFuzhou UniversityFuzhou 350116China Key Laboratory of Digital Earth Science Institute of Remote Sensing and Digital EarthChinese Academy of SciencesBeijing 100094China College of Geography and Tourism Anhui Normal UniversityWuhu 241000China College of Geomatics Shandong University of Science and TechnologyQingdao 266590China Spatial Information Research Center of Fujian Province Fuzhou UniversityFuzhou 350116China Joint Global Change Research Institute Pacific Northwest National Laboratory and University of MarylandCollege ParkMD20740USA

Remote sensing spatiotemporal fusion models blend multi-source images of different spatial resolutions to create synthetic images with high resolution and frequency,contributing to time series research where high quality observations are not available with sufficient ***,existing models are vulnerable to spatial heterogeneity and land cover changes,which are frequent in human-dominated *** obtain quality time series of satellite images in a human-dominated region,this study developed the Modified Flexible Spatial-temporal Data Fusion(MFSDAF)approach based on the Flexible Spatial-temporal Data Fusion(FSDAF)model by using the enhanced linear regression(ELR).Multiple experiments of various land cover change scenarios were conducted based on both actual and simulated satellite images,*** proposed MFSDAF model was validated by using the correlation coefficient(r),relative root mean square error(RRMSE),and structural similarity(SSIM),and was then compared with the Enhanced Spatial and Temporal Adaptive Reflectance Fusion Model(ESTARFM)and FSDAF *** show that in the presence of significant land cover change,MFSDAF showed a maximum increase in r,RRMSE,and SSIM of 0.0313,0.0109 and 0.049,respectively,compared to FSDAF,while ESTARFM performed best with less temporal difference of in the input *** conditions of stable landscape changes,the three performance statistics indicated a small advantage of MFSDAF over FSDAF,but were 0.0286,0.0102,0.0317 higher than for ESTARFM,*** showed greater accuracy of capturing subtle changes and created high-precision images from both actual and simulated satellite images.

关键词： MFSDAF enhanced linear regression land cover change heterogeneous time-series

REMOTE SENSING OF ALGAL BLOOMS USING A TURBIDITY-FREE FUNCTION FOR NEAR-INFRARED ANDRED SIGNALS

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Chinese Science Bulletin 2006年第4期51卷 464-471页

作者： LI Yan SHANG Shaoling ZHANG Caiyun MA Xiaoxin HUANG Liwei WU jingyu zeng Yindong State Key Laboratory of Marine Environmental Science Xiamen University Xiamen 361005 China

This article presents a method for real- time mapping of algal blooms in turbid coastal waters using the remote sensing reflectance of red band (Channel 1, 580-680 nm) and near-infrared band (Channel 2, 720-1100 nm) of the AVHRR sensor on the NOAA series satellites. A turbidity-free function for near-infrared and red signals, α0 = (bb(1)/bb(2))(a(2)/ a(1)) based on the first order bb/(a+bb) model deduc-ing equation Rrs(2)?1 = α0 Rrs(1) ?1+ g?1 (1?α0), were se-lected as a chlorophyll-a related index for detecting algal blooms, and the algal blooms with chlorophyll-a concentration of 64-256 mg/L could be defined by window of 1.6 < α0 < 5.2 and 0.01< Rrs(2)/g < 0.2. Such turbidity-free two-band method is supported by both sea-truth data and remote sensing experiment for an algal blooms event on the near-shore water off the Minjiang estuary of southeastern China during early June of 2003. Comparisons of this algorithm with other published algorithms, one-band method (i.e. method of bright water) or two-band methods (i.e. method of ratio, method of NDVI, and method of subtracting) have suggested that the turbidity-free function method could be regarded as a standard algorithm in capabilities of AVHRR imagery or other high resolution but wide near-infrared and red band imagery for detecting algal blooms events in coastal waters.

关键词：藻花遥感混浊函数红波段近红外波段航海光学

肝豆扶木汤对Wilson病小鼠肝纤维化和上皮-间质转化的干预作用

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河北中医 2024年第10期46卷 1654-1660页

作者：曾靖喻唐露露陈洁张宇杨文明张静安徽中医药大学第一临床医学院安徽合肥230012 安徽中医药大学第一附属医院神经内科安徽合肥230031

目的观察肝豆扶木汤(GDFMD)对Wilson病(WD)模型小鼠肝纤维化及上皮-间质转化(EMT)的影响。方法挑选30只tx-j小鼠,6只小鼠为一组,随机分为模型组、GDFMD低剂量组、GDFMD中剂量组、GDFMD高剂量组、青霉胺组,对照组由相同遗传背景下6只野... 详细信息

目的观察肝豆扶木汤(GDFMD)对Wilson病(WD)模型小鼠肝纤维化及上皮-间质转化(EMT)的影响。方法挑选30只tx-j小鼠,6只小鼠为一组,随机分为模型组、GDFMD低剂量组、GDFMD中剂量组、GDFMD高剂量组、青霉胺组,对照组由相同遗传背景下6只野生型小鼠组成。采用酶联免疫吸附试验(ELISA)检测小鼠血清透明质酸(HA)、层黏连蛋白(LN)、Ⅲ型前胶原蛋白(PC-Ⅲ)、Ⅳ型胶原蛋白(C-Ⅳ)、羟脯氨酸(Hyp)。采用苏木素-伊红(HE)、马松(Masson)染色观察小鼠肝脏病理形态情况及肝组织损害程度。采用免疫组织化学法检测转化生长因子-β1(TGF-β1)、E-上皮钙黏附素(E-cadherin)蛋白表达水平。采用实时荧光定量聚合酶链反应(PCR)检测肝组织TGF-β1、α-平滑肌肌动蛋白(α-SMA)、波形蛋白(Vimentin)、E-cadherin、基质金属蛋白酶-9(MMP-9)mRNA表达水平。结果与对照组比较,模型组血清LN、HA、PC-Ⅲ、C-Ⅳ、Hyp含量均显著升高(P<0.05),与模型组相比,GDFMD各组血清LN、HA、PC-Ⅲ、C-Ⅳ、Hyp含量明显下降(P<0.05)。肝脏组织病理形态学结果显示,与对照组比较,模型组肝损害明显,表现为肝细胞肿胀、脂肪变性、坏死,炎性细胞浸润,胶原纤维沉积增多等。GDFMD治疗后肝脏损害均有不同程度的改善。免疫组化检测结果:与对照组比较,模型组TGF-β1蛋白表达水平明显升高(P<0.05),E-cadherin蛋白表达水平明显下降(P<0.05);用药干预后,发现GDFMD可下调TGF-β1蛋白表达水平(P<0.05),上调E-cadherin蛋白表达水平(P<0.05)。实时荧光定量PCR检测结果:与对照组比较,模型组TGF-β1、α-SMA、Vimentin mRNA表达水平均呈升高(P<0.05),E-cadherin、MMP-9 mRNA表达水平呈下降(P<0.05),GDFMD组可下调TGF-β1、α-SMA、Vimentin mRNA表达水平(P<0.05),上调E-cadherin、MMP-9 mRNA表达水平(P<0.05)。结论GDFMD能够改善WD肝纤维化,其作用机制可能与调节肝脏EMT有关。

关键词：肝豆扶木汤 Wilson病上皮-间质转化肝纤维化

基于细胞自噬探讨肝豆灵片对Wilson病的干预研究

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医学研究杂志 2024年第7期53卷 57-61页

作者：钱建华徐国存曾靖喻蒋媛媛张玲陈怀珍王萍张静安徽中医药大学合肥2300122 安徽中医药大学第一附属医院神经内科合肥230031

目的探讨肝豆灵片对Wilson病(Wilson disease,WD)患者的临床疗效及自噬在其中的作用。方法前瞻性收集2021年2月~2022年10月安徽中医药大学第一附属医院神经内科收治的WD患者77例,将其分为治疗组(n=42)和对照组(n=35),其中治疗组予以肝... 详细信息

目的探讨肝豆灵片对Wilson病(Wilson disease,WD)患者的临床疗效及自噬在其中的作用。方法前瞻性收集2021年2月~2022年10月安徽中医药大学第一附属医院神经内科收治的WD患者77例,将其分为治疗组(n=42)和对照组(n=35),其中治疗组予以肝豆灵片(gandouling tablets,GDLT)联合西药治疗,对照组予以西药治疗。选取患者健康同胞40例作为健康组。所有研究对象均采用酶联免疫吸附试验检测血清Beclin-1、p62、LC3-Ⅱ水平的变化,提取外周血单个核细胞并进行实时荧光定量聚合酶链反应(real-time quantitative polymerase chain reaction,RT-qPCR)检测其基因表达水平;所有WD患者进行统一肝豆状核变性分级量表(unified Wilson disease rating scale,UWDRS)评分。分析UWDRS评分变化与自噬蛋白Beclin-1、LC3-Ⅱ、p62水平的相关性;分析GDLT对UWDRS评分及自噬蛋白Beclin-1、p62、LC3-Ⅱ的影响。结果WD患者Beclin-1、LC3-Ⅱ蛋白及mRNA表达水平上升,p62显著下降。UWDRS评分与Beclin-1、LC3-Ⅱ呈正相关,与p62呈负相关。GDLT干预治疗后,UWDRS评分改善显著,Beclin-1、LC3-Ⅱ水平下降显著,p62上升明显(P<0.05)。结论Beclin-1、p62、LC3-Ⅱ与WD病情发展密切相关,对评估WD病情及预后具有重要意义。GDLT干预治疗可抑制WD自噬的过度激活,逆转WD病情进展。

关键词： Wilson病细胞自噬肝豆灵片 UWDRS评分

The effects of air temperature and precipitation on the net primary productivity in China during the early 21st century

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Frontiers of Earth Science 2018年第4期12卷 818-833页

作者： Qianfeng WANG jingyu zeng Song LENG Bingxiong FAN Jia TANG Cong JIANGs Yi HUANG Qing ZHANG Yanping QU Wnlin WANG Wei SHUI College of Environment and Resource Fuzhou UniversityFuzhou 350116China Key Laboratory of Spatial Data Mining &Information Sharing Ministry of Education of ChinaFuzhou 350116China Fujian Provincial Key Laboratory of Remote Sensing of Soil Erosion and Disaster Protection Fuzhou 350116China Climate Change Cluster University of Technology SydneyBroadwayNew South Wales 2007Australia College of Biological Science and Engineering Fuzhou UniversityFuzhou 350116China Key Laboratory of Digital Earth Science Institute of Remote Sensing and Digital EarthChinese Academy of SciencesBeijing 100094China China Institute of Water Resources and Hydropower Research Beijing 100038China Research Center on Flood and Drought Disaster Reduction Beijing 100038China

Research on how terrestrial ecosystems respond to climate change can reveal the complex interactions between vegetation and climate. net primary productivity (NPP), an important vegetation parameter and ecological indicator, fluctuates within any given ecological environment or regional carbon budget. In this study, spatial interpolation was used to generate a spatial dataset, with 1-km spatial resolution, with meteorological data from 736 observation stations across China. An improved CASA model was used to simulate NPP over the period of 2001–2013 by taking into account land-cover change in every year during the same period. We propose the gridbased spatial patterns and dynamics of annual NPP, annual average temperature, and annual total precipitation based on the model. We also used the model to demonstrate the spatial correlation between NPP, temperature, and precipitation in the study area with special focus on the impact of climate change in the early 21st century. Results showed that the spatial pattern of NPP over all of China is characterized by higher values in the southeast and lower values in the northwest. The spatial pattern of temperature indicates substantial latitudinal differences across the country, and the spatial pattern of precipitation shows a ribbon of decline from the southeast coast to the northwest inland. Most areas show an upward trend in NPP. Temperatures appear to decrease across the country during the global warming hiatus (1998–2008), and are accompanied by an increase in precipitation over most regions. The correlation between NPP and annual average temperature is weak. Alternatively, NPP and annual total precipitation are positively correlated in northern and central China at a coefficient above 0.64 (p<0.01) yet negatively correlated in the eastern parts of the Qinghai- Tibet Plateau and Sichuan Basin. Results can provide useful information for improving parameters for calibration of the terrestrial ecosystem process model.

关键词： impact air temperature precipitation NPP China

膨胀石墨/MnO_(2)超级电容器电极材料中膨胀石墨的作用机制

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复合材料学报 2022年第1期39卷 242-249页

作者：桂阳曾靖宇范宝安张春桃武汉科技大学化学与化工学院武汉430081 湖北省煤转化与新型碳材料重点实验室武汉430081

采用一种简便的方法制备出了单相α-MnO_(2)和膨胀石墨(EG)/MnO_(2)复合物。实验结果表明EG/MnO_(2)复合物有着比单相α-MnO_(2)更高的比电容和更加优异的倍率性能。随后采用XRD、TG、EIS、BET等手段对复合材料中EG的作用机制进行了研究... 详细信息

采用一种简便的方法制备出了单相α-MnO_(2)和膨胀石墨(EG)/MnO_(2)复合物。实验结果表明EG/MnO_(2)复合物有着比单相α-MnO_(2)更高的比电容和更加优异的倍率性能。随后采用XRD、TG、EIS、BET等手段对复合材料中EG的作用机制进行了研究,结果发现在EG/MnO_(2)复合物中出现了δ相MnO_(2)(δ-MnO_(2)为层状结构,相较于α-MnO_(2)更加有利于离子的扩散和传输),δ-MnO_(2)大约占复合物总质量的30wt%,EG占3.4wt%。EG/MnO_(2)复合物的电荷转移电阻显著低于单相α-MnO_(2)。EG/MnO_(2)的比表面积为38.7 m^(2)·g^(-1),而单相α-MnO_(2)的比表面积只有21.6 m^(2)·g^(-1),更大的比表面积使材料与电解液接触更为充分,从而降低了电荷转移电阻。综上,复合材料中EG的作用机制是通过自身的层状结构诱导了MnO_(2)在其上沉积形成了层状的δ-MnO_(2),同时抑制了MnO_(2)颗粒的生长,增加了颗粒与电解液的接触面积,降低了电荷转移电阻,从而增大了比电容,也提高了其倍率性能。

关键词：超级电容器二氧化锰石墨复合材料机制

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翅子树叶中的化学成分研究

天然产物研究与开发 1998年第2期10卷 15-18页

作者：钟永利闫素君苏镜娱曾陇梅中山大学化学系广州510275

从翅子树叶中首次分离和鉴定了二个黄酮类化合物:多羟基黄烷(一)-epicatechin(1),多羟基黄酮 Quercetin-3-O-α-L-arabinopyranoside(2);一个五环三萜Lup-20(29)-en-3β-01(3)。

关键词：翅子树叶化学成分梧桐树黄酮三萜生物合成

非共价/共价相互作用对明胶-PCA复合物功能特性和稳定性的影响

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食品工业科技 2024年第16期45卷 94-101页

作者：刘冉曾庆华程霜李婧御潘晓红王雷聊城大学农学与农业工程学院山东聊城252000 江苏大学食品与生物工程学院江苏镇江212000

为探讨原儿茶酸(protocatechuic acid,PCA)与明胶之间的相互作用对明胶-PCA复合物功能特性和稳定性的影响,本文通过非共价和共价结合方式制备明胶-PCA复合物,采用紫外-可见光谱、荧光光谱和傅里叶红外光谱分析PCA与明胶之间的相互作用,... 详细信息

为探讨原儿茶酸(protocatechuic acid,PCA)与明胶之间的相互作用对明胶-PCA复合物功能特性和稳定性的影响,本文通过非共价和共价结合方式制备明胶-PCA复合物,采用紫外-可见光谱、荧光光谱和傅里叶红外光谱分析PCA与明胶之间的相互作用,并对复合物的抗氧化活性、抑菌活性和稳定性进行分析。结果表明,与非共价复合物相比,共价复合物具有更高的PCA结合率。PCA与明胶二者相互作用对明胶具有荧光淬灭作用,且共价作用引起的荧光淬灭程度更大。明胶-PCA复合物具有优异1,1-二苯基-2-三硝基苯肼(1,1-diphenyl-2-picrylhydrazyl,DPPH)自由基和2,2'-联氮-双-3-乙基苯并噻唑啉-6-磺酸(2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid,ABTS+)自由基清除能力。与共价复合物GPCA-2相比,非共价复合物GPCA-1对DPPH和ABTS+自由基清除能力更加显著(P<0.05),其清除率分别为49.71%±2.9%和38.39%±0.57%。明胶-PCA复合物还表现出对大肠杆菌、李斯特菌和沙门氏菌的抑菌作用。与GPCA-2相比,GPCA-1的抑菌效果更加显著(P<0.05),其大肠杆菌、李斯特菌和沙门氏菌的抑菌圈直径分别为11.31±0.91、12.57±0.93和8.83±0.35 mm。虽然PCA与明胶之间的相互作用在一定程度上降低了PCA的抗氧化活性和抑菌活性,却能显著(P<0.05)提高PCA的光稳定性和热稳定性。明胶-PCA共价复合物在紫外光和热处理80 min后,其PCA的保留率可达到92.58%±0.62%和90.30%±0.97%。实验结果为功能型明胶-PCA复合产品的开发与利用提供理论依据。

关键词：原儿茶酸明胶相互作用抗氧化性抑菌性稳定性

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