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中高分辨率卫星影像的装置级别工业热源识别

遥感学报 2024年第8期28卷 2101-2112页

作者：孙爽姜磊刘保献鹿海峰任华忠王新辉李金香北京市生态环境监测中心北京100048 北京大学遥感与地理信息系统研究所北京100871

针对精细化工业热源遥感监测困难与误差较大等问题,本文聚焦单个规模较大的工厂内部热场分布情况,提出一种基于中高分辨率卫星影像(Landsat 8)的装置级别工业热源的多层级识别方法。该方法基于双通道非线性劈窗算法反演的地表温度,利用... 详细信息

针对精细化工业热源遥感监测困难与误差较大等问题,本文聚焦单个规模较大的工厂内部热场分布情况,提出一种基于中高分辨率卫星影像(Landsat 8)的装置级别工业热源的多层级识别方法。该方法基于双通道非线性劈窗算法反演的地表温度,利用多种空间统计分析方法分别对单期影像开展热源装置范围的识别检测,筛选出识别位置准确、识别能力稳定的方法,开展多时相热源装置识别分析,确定厂区范围内稳定出现的热源装置的位置,并结合高分辨率卫星影像进一步确定热源装置的边界范围。在某石油化工企业厂区的实验研究结果如下:5种方法均具有识别热源装置的能力。其中,温度1.5倍标准差分级与焦点统计分析方法适合捕捉厂区内最主要的热源装置,冷热点分析、温度1倍标准差分级方法以及聚类与异常值分析方法更适用于识别厂区内一般的热源装置。聚类与异常值分析方法识别结果正确检出率在80%以上,整体遗漏率低于10%,且各期识别结果受季节变化影响较小,更适用于识别装置级别(主要包括生产装置、循环水、锅炉装置、储存库、火炬装置以及罐区)的热源对象。识别的热源装置中,生产装置占比约55%,是厂区主要的热源装置。研究结果表明,中高分辨率卫星遥感影像数据源可以有效监测工业企业的精细尺度发热单元,为环境保护与管理、工业去产能监测提供技术支撑。

关键词：遥感工业热源装置高温单元识别地表温度空间统计分析

New hybrid algorithm for land surface temperature retrieval from multiple-band thermal infrared image without atmospheric and emissivity data inputs

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International Journal of Digital Earth 2020年第12期13卷 1430-1453页

作者： huazhong ren Jiaji Dong Rongyuan Liu Yitong Zheng Jinxin Guo Shanshan Chen Jing Nie Yan Zhao Institute of Remote Sensing and Geographic Information System School of Earth and Space SciencesPeking UniversityBeijingPeople’s Republic of China China Aero Geophysical Survey and Remote Sensing Center for Natural Resources BeijingPeople’s Republic of China China Translation Telecommunications and Information Center BeijingPeople’s Republic of China

Land surface temperature(LST)retrieval from thermal infrared(TIR)remote sensing image requires atmospheric and land surface emissivity(LSE)data that are sometimes *** overcome this problem,a hybrid algorithm is developed to retrieve LST without atmospheric correction and LSE data input,by combining the split-window(SW)and temperature–emissivity separation(TES)*** SW algorithm is used to estimate surface-emitting radiance in adjacent TIR bands,and such radiance is applied to the TES algorithm to retrieve LST and *** hybrid algorithm is implemented on five TIR bands of the Advanced Spaceborne Thermal Emission and Reflection Radiometer(ASTER).Analysis shows that the hybrid algorithm can estimate LST and LSE with an error of 0.5–1.5 K and 0.007–0.020,***,the LST error of the hybrid algorithm is equivalent to that of the original ASTER TES algorithm,involving 1%–2%uncertainty in atmospheric *** hybrid algorithm is validated using ground-measured LST at six sites and ASTER LST products,indicating that the temperature difference between the ASTER TES algorithm and the hybrid algorithm is 1.4 K and about 2.5–3.5 K compared to the ground ***,the hybrid algorithm is applied to at two places.

关键词： Land surface temperature and emissivity TES algorithm split-window algorithm hybrid algorithm

Molecularly tagged genes and quantitative trait loci in cucumber with recommendations for QTL nomenclature

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Horticulture Research 2020年第1期7卷 2678-2697页

作者： Yuhui Wang Kailiang Bo Xingfang Gu Junsong Pan Yuhong Li Jinfeng Chen Changlong Wen Zhonghai ren huazhong ren Xuehao Chen Rebecca Grumet Yiqun Weng Department of Horticulture University of WisconsinMadisonWI 53706USA Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesBeijing 100081China Department of Plant Sciences Shanghai Jiaotong UniversityShanghai 200240China Horticulture College Northwest A&F UniversityYangling 712100China Horticulture College Nanjing Agricultural UniversityNanjing 210095China Beijing Vegetable Research Center Beijing Academy of Agricultural and Forestry SciencesBeijing 100097China College of Horticulture Science and Engineering Shandong Agricultural UniversityTai’an 271018China College of Horticulture China Agricultural UniversityBeijing 100193China College of Horticulture and Plant Protection Yangzhou UniversityYangzhou 225009China Department of Horticulture Michigan State UniversityEast LansingMI 48824USA USDAARS Vegetable Crops Research Unit 1575 Linden Dr.MadisonWI 53706USA

Cucumber,Cucumis sativus L.(2n=2x=14),is an important vegetable crop *** was the first specialty crop with a publicly available draft *** relatively small,diploid genome,short life cycle,and selfcompatible mating system offers advantages for genetic *** recent years,significant progress has been made in molecular mapping,and identification of genes and QTL responsible for key phenotypic traits,but a systematic review of the work is ***,we conducted an extensive literature review on mutants,genes and QTL that have been molecularly mapped or characterized in *** documented 81 simply inherited trait genes or major-effect QTL that have been cloned or fine *** each gene,detailed information was compiled including chromosome locations,allelic variants and associated polymorphisms,predicted functions,and diagnostic markers that could be used for marker-assisted selection in cucumber *** also documented 322 QTL for 42 quantitative traits,including 109 for disease resistances against seven *** alignment of these QTL on the latest version of cucumber draft genomes,consensus QTL across multiple studies were inferred,which provided insights into heritable correlations among different *** collaborative efforts among public and private cucumber researchers,we identified 130 quantitative traits and developed a set of recommendations for QTL nomenclature in *** is the first attempt to systematically summarize,analyze and inventory cucumber mutants,cloned or mapped genes and QTL,which should be a useful resource for the cucurbit research community.

关键词： trait traits cucumber

The leaf senescence-promoting transcription factor AtNAP activates its direct target gene CYTOKININ OXIDASE 3 to facilitate senescence processes by degrading cytokinins

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Molecular Horticulture 2021年第1期1卷 60-71页

作者： Youzhen Hu Bin Liu huazhong ren Liping Chen Christopher B.Watkins Su-Sheng Gan Plant Biology Section School of Integrative Plant ScienceCornell UniversityIthacaNew York 14853USA Current address:College of Food Science Shihezi UniversityXinjiang 832000China College of Horticulture China Agriculture UniversityBeijing 100193China Current address:Department of Plant Genomics Centre for Research in Agricultural Genomics(CRAG)CSIC-IRTA-UAB-UBBellaterraSpain College of Agriculture and Biotechnology Zhejiang UniversityHangzhou 310058China Horticulture Section School of Integrative Plant ScienceCornell UniversityIthacaNew York 14853USA

Cytokinins(CKs)are a class of adenine-derived plant hormones that plays pervasive roles in plant growth and development including cell division,morphogenesis,lateral bud outgrowth,leaf expansion and *** as a“fountain of youth”prolongs leaf longevity by inhibiting leaf senescence,and therefore must be catabolized for senescence to ***,a senescence-specific transcription factor has a key role in promoting leaf *** role of AtNAP in regulating CK catabolism is *** we report the identification and characterization of AtNAP-AtCKX3(cytokinin oxidase 3)module by which CKs are catabolized during leaf senescence in *** AtNAP,AtCKX3 is highly upregulated during leaf *** AtNAP is chemically induced AtCKX3 is co-induced;and when AtNAP is knocked out,the expression of AtCKX3 is *** physically binds to the cis element of the AtCKX3 promoter to direct its expression as revealed by yeast one-hybrid assays and in planta *** of the atckx3 knockout lines have higher CK concentrations and a delayed senescence phenotype compared with those of *** contrast,leaves with inducible expression of AtCKX3 have lower CK concentrations and exhibit a precocious senescence phenotype compared with *** research reveals that AtNAP transcription factor˗AtCKX3 module regulates leaf senescence by connecting two antagonist plant hormones abscisic acid and CKs.

关键词： ABA ABA-cytokinin crosstalk Aging Arabidopsis Cytokinin metabolism Leaf longevity Plant hormone Senescence-associated genes(SAGs)

A long-term Global LAnd Surface Satellite(GLASS)data-set for environmental studies

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International Journal of Digital Earth 2013年第S1期6卷 5-33页

作者： Shunlin Liang Xiang Zhao Suhong Liu Wenping Yuan Xiao Cheng Zhiqiang Xiao Xiaotong Zhang Qiang Liu Jie Cheng Hairong Tang Yonghua Qu Yancheng Bo Ying Qu huazhong ren Kai Yu John Townshend The State Key Laboratory of Remote Sensing Science Jointly Sponsored by Beijing Normal University and Institute of Remote Sensing Applications of Chinese Academy of SciencesBeijingChina College of Global Change and Earth System Sciences Beijing Normal UniversityBeijingChina Department of Geographical Sciences University of MarylandMDUSA School of Geography Beijing Normal UniversityBeijingChina Institute of Electronics Chinese Academy of SciencesBeijingChina

Recently,five Global LAnd Surface Satellite(GLASS)products have been released:leaf area index(LAI),shortwave broadband albedo,longwave broadband emissivity,incident short radiation,and photosynthetically active radiation(PAR).The first three products cover the years 19822012(LAI)and 19812010(albedo and emissivity)at 15 km and 8-day resolutions,and the last two radiation products span the period 20082010 at 5 km and 3-h *** products have been evaluated and validated,and the preliminary results indicate that they are of higher quality and accuracy than the existing *** particular,the first three products have much longer time series,and are therefore highly suitable for various environmental *** paper outlines the algorithms,product characteristics,preliminary validation results,potential applications and some examples of initial analysis of these products.

关键词： earth observation global environmental change remote sensing

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植被光合有效辐射吸收比率遥感研究进展

遥感学报 2020年第11期24卷 1307-1324页

作者：田定方范闻捷任华忠北京大学地球与空间科学学院遥感与地理信息系统研究所北京100871 空间信息集成与3S工程应用北京市重点实验室北京100871

植被光合有效辐射吸收比率FPAR(Fraction of absorbed Photosynthetically Active Radiation)反映了植被冠层的光学特性,是表征植被光合作用水平和生长状态的重要参量,因此成为全球变化研究中多种过程模型的重要输入参数。随着定量遥感... 详细信息

植被光合有效辐射吸收比率FPAR(Fraction of absorbed Photosynthetically Active Radiation)反映了植被冠层的光学特性,是表征植被光合作用水平和生长状态的重要参量,因此成为全球变化研究中多种过程模型的重要输入参数。随着定量遥感研究的深入和新型传感器的使用,从区域到全球尺度上的FPAR遥感估算方法不断提出,多样化的遥感FPAR产品越来越多地应用于碳循环、能量循环、生产力估算及作物估产等研究领域。本文梳理了遥感估算的植被光合有效辐射的相关概念和算法,并着重对过去十年间遥感估算FPAR的新进展进行了系统总结和探讨。研究表明,近年来FPAR遥感的研究工作一方面聚焦于对现有算法的改进与各类型产品的验证,更多的研究则侧重于FPAR概念体系的拓展,叶片、叶绿素水平的FPAR估算,直射光、散射光的FPAR建模等新方向逐渐成为研究热点。

关键词：植被定量遥感光合有效辐射吸收比率冠层吸收模型遥感算法产品及验证

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黄瓜单倍体育种的研究进展

农业工程学报 2005年第Z2期21卷 13-15页

作者：苏华金宝燕任华中中国农业大学农学与生物技术学院蔬菜系北京100094

综述了黄瓜作物单倍体育种的研究进展,包括花药培养、未授粉子房培养,辐射花粉诱导单倍体培养在黄瓜育种中的应用;总结了近年来所采用的黄瓜染色体倍性鉴定方法和加倍技术;讨论了目前这些领域存在的问题和今后的研究方向。

关键词：黄瓜单倍体花药培养子房培养辐射花粉研究进展

Advances in understanding epigenetic regulation of plant trichome development: a comprehensive review

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Horticulture Research 2023年第9期10卷 293-305页

作者： Yuming Dong Sen Li Haoying Wu Yiming Gao Zhongxuan Feng Xi Zhao Li Shan Zhongren Zhang huazhong ren Xingwang Liu College of Horticulture China Agricultural UniversityBeijing 100193China Sanya Institute of China Agricultural University Sanya Hainan 572000China

Plant growth and development are controlled by a complex gene regulatory network,which is currently a focal point of *** has been established that epigenetic factors play a crucial role in plant ***,specialized appendages that arise from epidermal cells,are of great significance in plant growth and *** a model system for studying plant development,trichomes possess both commercial and research *** regulation has only recently been implicated in the development of trichomes in a limited number of studies,and microRNA-mediated post-transcriptional regulation appears to dominate in this *** light of this,we have conducted a review that explores the interplay between epigenetic regulations and the formation of plant trichomes,building upon existing knowledge of hormones and transcription factors in trichome *** this review,we aim to deepen our understanding of the regulatory mechanisms underlying trichome formation and shed light on future avenues of research in the field of epigenetics as it pertains to epidermal hair growth.

关键词： development. comprehensive specialized

一种自适应的混合Freeman/Eigenvalue极化分解模型

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国土资源遥感 2017年第2期29卷 8-14页

作者：何连秦其明任华忠北京大学遥感与地理信息系统研究所

全极化SAR数据的极化分解在土地利用分类、目标检测与识别以及地表参数反演等领域得到了广泛应用。目前,主要有基于特征值分解和基于模型分解2类极化分解方法。混合Freeman/Eigenvalue极化分解结合了两者的优势,避免了基于模型的极化分... 详细信息

全极化SAR数据的极化分解在土地利用分类、目标检测与识别以及地表参数反演等领域得到了广泛应用。目前,主要有基于特征值分解和基于模型分解2类极化分解方法。混合Freeman/Eigenvalue极化分解结合了两者的优势,避免了基于模型的极化分解中负功率问题并且能够利用已知的散射机制解释分解后的散射分量。为了进一步拓展该分解在不同地表类型中的应用,通过引入参数Neumann一般化体散射模型,提出了一种自适应的极化分解模型。利用德国Black Forest地区的L波段AirSAR(airborne synthetic aperture Radar)全极化数据进行实验,并与现有的Yamaguchi三分量模型和自适应非负分解(adaptive nonnegative eigenvalue decomposition,ANNED)对比分析,以验证模型的有效性。研究表明,自适应的混合Freeman/Eigenvalue极化分解模型保证了分解能量的非负性及完全分解,适应于不同类型的地表,能有效地区分不同地类。

关键词： PolSAR, 极化分解, Freeman/Eigenvalue分解, Neumann体散射模型