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| 1 | Spatiotemporal dynamics of impervious surface areas across China during the early 21st century显示文摘China has experienced an unprecedented urbanization and industrialization in the past decades. In this research, we examined the dynamics of construction lands and impervious surface areas (ISA) based on land use/cover change and ISA datasets between 2000 and 2008, which were provided by the national resources and environmental remote sensing information platform. The results indicated that the construction areas and ISA increased by 3468.30 and 2212.24 km 2 /a in this period primarily due to the implementation of national macro-development strategies and fast-growing economy. In 2008, ISA accounted for 0.86% of the total land area in China. Urban land areas increased by 43.46% between 2000 and 2008. The annual growth rate of 1788.22 km 2 /a in this period was 2.18 times that in the 1990s. In particular, urban ISA increased by 53.30% between 2000 and 2008 with an annual growth rate of 1348.85 km 2 /a. During the 8 years, the ISA in China increased rapidly, especially in the Beijing-Tianjin-Tangshan Metropolitan Region, Pearl River Delta, Yangtze River Delta, and the western China region. The increasing ISA may influence potentially water environmental quality in the major basins. In particular, the number of subbasins having ISA of greater than 10% increased considerably, which were primarily distributed in the Haihe River, Yangtze River and Pearl River basins. In 2008, 14.42% of the basin areas were affected by the increased ISA. | KUANG WenHui LIU JiYuan ZHANG ZengXiang LU DengSheng XIANG Bao | 2013 | Chinese Science Bulletin2013，58，14： | 59 |
| 2 | 21世纪初中国人工建设不透水地表遥感监测与时空分析显示文摘进入2l世纪中国快速的城市化、工业化受到世界瞩目.基于国家资源环境遥感时空信息平台动态更新的中国土地利用/覆盖变化(LUCC)数据集以及人工建设不透水地表(ISA)空间数据集,在国家尺度监测21世纪初(2000~2008年)人工建设用地与不透水地表的增长.结果表明,我国21世纪初8年间受新一轮国土开发战略、社会经济高速增长等因素的影响,全国人工建设用地与不透水地表面积分别以3468.30,2212.24km2/a的速度高速增长,到2008年不透水地表面积占国土总面积的0.86%.2000~2008年城市用地扩张速度是20世纪90年代的2.18倍,以1788.22km2/a的平均速度扩张了2000年面积的43.46%,其中城市不透水地表面积以1348.85km2/a的速度增长了2000年面积的53.30%.总体上,8年间中国城市不透水地表面积呈现高速增长的态势,京津冀、珠三角与长三角三大城市群以及西部地区属于快速增长的区域.8年间,我国七大流域地表水环境均不同程度地受到不透水地表增长的潜在影响,而且不透水地表面积比例大于10%的子流域面积显著增加,集中分布在海河、长江、珠江三大流域.到2008年我国国土流域面积的14.42%不同程度地受到不透水地表分布的影响. | 匡文慧 刘纪远 张增祥 LU DengSheng 香宝 | 2013 | 科学通报2013，58，5： | 33 |
| 3 | Effects of dietary supplementation of Artemisia argyi aqueous extract on antioxidant indexes of small intestine in broilers显示文摘The present study was conducted to investigate the effect of Artemisia argyi aqueous extract(AAE) on antioxidant indexes in the small intestine. A total of 192 Arbor Acre broiler chickens(one-day-old) were randomly divided into 4 treatments with 6 replicates of 8 chickens. These 4 diets were formulated by adding 0, 500,1,000 and 2,000 mg/kg AAE to the basal diet. The results showed as follows: 1) compared with the control, the total antioxidant capacity(T-AOC) in ileum for the 2,000 mg/kg treatment group was significantly increased at 21 days of age(P < 0.05); the T-AOC levels in jejunum and ileum were significantly increased in broilers supplemented with 500 mg/kg AAE at 42 days of age(P < 0.05), and the T-AOC levels in jejunum and ileum were significantly improved in 1,000 mg/kg treatment group(P < 0.01), 2) At 21 days of age, supplementation of 500 mg/kg AAE significantly increased the catalase(CAT) activity of small intestine, and the glutathione peroxidase(GSH-Px) activity of jejunum was improved(P < 0.01), meanwhile, the GSH-Px activity of duodenum and the total superoxide dismutase(T-SOD) activity of duodenum and jejunum were significantly higher than those of the control group(P < 0.05); supplementation of 1,000 mg/kg AAE significantly increased the CAT activity of duodenum and ileum and the GSH-Px activity of duodenum and jejunum(P < 0.05), and the ileum GSH-Px activity was significantly increased(P < 0.01); supplementation of 2,000 mg/kg AAE significantly increased the CAT activity of duodenum and ileum(P < 0.05). At 42 days of age, supplementation of 500 mg/kg AAE significantly increased the GSH-Px activity of ileum and the T-SOD activity of duodenum(P < 0.05),meanwhile, the T-SOD activity of jejunum was significantly increased(P < 0.01); supplementation of1,000 mg/kg AAE significantly increased the CAT activity of jejunum and the T-SOD activity of ileum(P < 0.01), and the GSH-Px activity of jejunum was significantly increased(P < 0.05); supplementation of2,000 mg/kg AAE significantly increased the T-SOD activity of ileum(P < 0.05), but significantly decreased the CAT activity of ileum and the GSH-Px activity of jejunum(P < 0.05). 3) The malondialdehyde(MDA) levels of 3 AAE supplementation groups were significantly decreased at 21 and 42 days of age(P < 0.05). The results suggested that dietary supplementation with AAE could improve the antioxidative capacity of small intestine in broilers. | Fei Zhao Binlin Shi Dengsheng Sun Hongyan Chen Manman Tong Pengfei Zhang Xiaoyu Guo Sumei Yan | 2016 | Animal Nutrition2016，，3： | 18 |
| 4 | A survey of remote sensing-based aboveground biomass estimation methods in forest ecosystems显示文摘Remote sensing-based methods of aboveground biomass(AGB)estimation in forest ecosystems have gained increased attention,and substantial research has been conducted in the past three decades.This paper provides a survey of current biomass estimation methods using remote sensing data and discusses four critical issues–collection of field-based biomass reference data,extraction and selection of suitable variables from remote sensing data,identification of proper algorithms to develop biomass estimation models,and uncertainty analysis to refine the estimation procedure.Additionally,we discuss the impacts of scales on biomass estimation performance and describe a general biomass estimation procedure.Although optical sensor and radar data have been primary sources for AGB estimation,data saturation is an important factor resulting in estimation uncertainty.LIght Detection and Ranging(lidar)can remove data saturation,but limited availability of lidar data prevents its extensive application.This literature survey has indicated the limitations of using single-sensor data for biomass estimation and the importance of integrating multi-sensor/scale remote sensing data to produce accurate estimates over large areas.More research is needed to extract a vertical vegetation structure(e.g.canopy height)from interferometry synthetic aperture radar(InSAR)or optical stereo images to incorporate it into horizontal structures(e.g.canopy cover)in biomass estimation modeling. | Dengsheng Lu Qi Chen Guangxing Wang Lijuan Liu Guiying Li Emilio Moran | 2016 | International Journal of Digital Earth2016，9，1： | 17 |
| 5 | An EcoCity model for regulating urban land cover structure and thermal environment: Taking Beijing as an example显示文摘Urban land-use/cover changes and their effects on the eco-environment have long been an active research topic in the urbanization field. However, the characteristics of urban inner spatial heterogeneity and its quantitative relationship with thermal environment are still poorly understood, resulting in ineffective application in urban ecological planning and management.Through the integration of 'spatial structure theory' in urban geography and 'surface energy balance' in urban climatology, we proposed a new concept of urban surface structure and thermal environment regulation to reveal the mechanism between urban spatial structure and surface thermal environment. We developed the EcoCity model for regulating urban land cover structure and thermal environment, and established the eco-regulation thresholds of urban surface thermal environments. Based on the comprehensive analysis of experimental observation, remotely sensed and meteorological data, we examined the spatial patterns of urban habitation, industrial, infrastructure service, and ecological spaces. We examined the impacts of internal land-cover components(e.g., urban impervious surfaces, greenness, and water) on surface radiation and heat flux. This research indicated that difference of thermal environments among urban functional areas is closely related to the proportions of the land-cover components.The highly dense impervious surface areas in commercial and residential zones significantly increased land surface temperature through increasing sensible heat flux, while greenness and water decrease land surface temperature through increasing latent heat flux. We also found that different functional zones due to various proportions of green spaces have various heat dissipation roles and ecological thresholds. Urban greening projects in highly dense impervious surfaces areas such as commercial, transportation, and residential zones are especially effective in promoting latent heat dissipation efficiency of vegetation, leading to strongly cooling effect of unit vegetation coverage. This research indicates that the EcoCity model provides the fundamentals to understand the coupled mechanism between urban land use structure and surface flux and the analysis of their spatiotemporal characteristics. This model provides a general computational model system for defining urban heat island mitigation, the greening ratio indexes, and their regulating thresholds for different functional zones. | KUANG WenHui YANG TianRong LIU AiLin ZHANG Chi LU DengSheng CHI WenFeng | 2017 | Science China Earth Sciences2017，60，6： | 16 |
| 6 | Cropland redistribution to marginal lands undermines environmental sustainability显示文摘Cropland redistribution to marginal land has been reported worldwide;however,the resulting impacts on environmental sustainability have not been investigated sufficiently.Here we investigated the environmental impacts of cropland redistribution in China.As a result of urbanization-induced loss of high-quality croplands in south China(~8.5 t ha^(-1)),croplands expanded to marginal lands in northeast(~4.5 t ha^(-1)) and northwest China(~2.9 t ha^(-1)) during 1990-2015 to pursue food security.However,the reclamation in these low-yield and ecologically vulnerable zones considerably undermined local environmental sustainability,for example increasing wind erosion(+3.47%),irrigation water consumption(+34.42%),fertilizer use(+20.02%) and decreasing natural habitats(-3.11%).Forecasts show that further reclamation in marginal lands per current policies would exacerbate environmental costs by 2050.The future cropland security risk will be remarkably intensified because of the conflict between food production and environmental sustainability.Our research suggests that globally emerging reclamation of marginal lands should be restricted and crop yield boost should be encouraged for both food security and environmental benefits. | Wenhui Kuang Jiyuan Liu Hanqin Tian Hao Shi Jinwei Dong Changqing Song Xiaoyong Li Guoming Du Yali Hou Dengsheng Lu Wenfeng Chi Tao Pan Shuwen Zhang Rafiq Hamdi Zherui Yin Huimin Yan Changzhen Yan Shixin Wu Rendong Li Jiuchun Yang Yinyin Dou Wenbin Wu Liqiao Liang Bao Xiang Shiqi Yang | 2022 | National Science Review2022，9，1： | 13 |
| 7 | 亚洲人造地表覆盖遥感精细化分类与分布特征分析显示文摘人造地表覆盖是刻画人类活动对陆地表层生态系统影响的重要因素,具有高度动态、结构复杂和类型镶嵌等特征.由于当前缺乏有效的洲际尺度人造地表覆盖精细化遥感探测方法和高精度的数据产品,由此影响了城市化对区域气候、生态系统过程和全球环境变化影响评估的可靠性.本研究构建了人造地表覆盖等级层次结构分类系统,发展了基于2010年全球地表覆盖30m分辨率产品(GlobeLand30)的人造地表覆盖二级类型像元组分提取的技术方法,研发了亚洲2010年高精度城市建成区及其内部城市不透水地表和植被覆盖组分比例数据产品.基于多源数据融合和专家知识方法获取的城市建成区及其内部组分分类的总体精度为90.79%;城市内部不透水地表比例组分信息提取平均相对误差为0.87,总体上数据产品具有较高的质量和可靠性.遥感精细化信息提取局部误差与不同气候带城市建筑与植被镶嵌程度密切有关.遥感精细化分类表明,亚洲城市建成区面积181785.96km^2,占亚洲陆表面积的0.59%;城市内部结构组分中,城市不透水地表总面积为116504.72km^2,占亚洲城市建成区面积的64.09%,植被和裸土面积占34.56%.在空间上,城市不透水地表自东向西呈现集聚式、分散式和无显著分布特征三级梯度.中国、印度和日本等国家,城市不透水地表总面积排在前三位,分别占亚洲城市不透水地表面积的32.77%、16.10%和11.93%.研究发现,城市建成区内部不透水地表与植被覆盖组分比例与国家的经济发展程度及区域气候环境密切相关,对于经济较为发达的国家,城市建成区内部镶嵌类型中不透水地表比例相对较低,如韩国、新加坡城市不透水地表比例约为50~60%,公共绿地植被面积比例相对较高,而对于经济发展水平较低的国家,城市建成区内部镶嵌类型中城市不透水地表比例则接近或超过80%.城市建成区内不透水地表、植被组分及空间分布特征集中反映了亚洲地区人口集聚和经济发展水平以及对子流域环境健康状况影响程度. | 匡文慧 陈利军 刘纪远 XIANG WeiNing 迟文峰 LU DengSheng 杨天荣 潘涛 刘爱琳 | 2016 | 中国科学:地球科学2016，46，9： | 13 |
| 8 | Remote sensing-based artificial surface cover classification in Asia and spatial pattern analysis显示文摘Artificial surfaces, characterized with intensive land-use changes and complex landscape structures, are important indicators of human impacts on terrestrial ecosystems. Without high-resolution land-cover data at continental scale, it is hard to evaluate the impacts of urbanization on regional climate, ecosystem processes and global environment. This study constructed a hierarchical classification system for artificial surfaces, promoted a remote sensing method to retrieve subpixel components of artificial surfaces from 30-m resolution satellite imageries(Globe Land30) and developed a series of data products of high-precision urban built-up areas including impervious surface and vegetation cover in Asia in 2010. Our assessment, based on multisource data and expert knowledge, showed that the overall accuracy of classification was 90.79%. The mean relative error for the impervious surface components of cities was 0.87. The local error of the extracted information was closely related to the heterogeneity of urban buildings and vegetation in different climate zones. According to our results, the urban built-up area was 18.18×104 km2, accounting for 0.59% of the total land surface areas in Asia; urban impervious surfaces were 11.65×104 km2, accounting for 64.09% of the total urban built-up area in Asia. Vegetation and bare soils accounted for 34.56% of the urban built-up areas. There were three gradients: a concentrated distribution, a scattered distribution and an indeterminate distribution from east to west in terms of spatial pattern of urban impervious surfaces. China, India and Japan ranked as the top three countries with the largest impervious surface areas, which respectively accounted for 32.77%, 16.10% and 11.93% of the urban impervious surface area of Asia. We found the proportions of impervious surface and vegetation cover within urban built-up areas were closely related to the economic development degree of the country and regional climate environment. Built-up areas in developed countries had relatively low impervious surface and high public green vegetation cover, with 50–60% urban impervious surfaces in Japan, South Korea and Singapore. In comparison, the proportion of urban impervious surfaces in developing countries is approaching or exceeding 80% in Asia. In general, the composition and spatial patterns of built-up areas reflected population aggregation and economic development level as well as their impacts on the health of the environment in the sub-watershed. | KUANG WenHui CHEN LiJun LIU JiYuan XIANG WeiNing CHI WenFeng LU DengSheng YANG TianRong PAN Tao LIU AiLin | 2016 | Science China Earth Sciences2016，59，9： | 12 |
| 9 | 基于遥感的1987-2013年北部湾海岸线变迁研究显示文摘利用北部湾海域1987-2013年7个时期多时序遥感影像为信息源,通过提取水体指数并以最大类间方差法计算水陆分割阈值,从而分割得到'水边线'并进行潮位校正后得到海岸线;对各时期海岸线的时空分布、分形维数、变迁速率等特征进行计算,并初步分析了海岸线变化的驱动力。研究结果表明:从1987-2013年北部湾海岸线增加120km,其中:北海市增加65km,防城港市增加54km,钦州市保持稳定。海岸线分维数从1.0677增加至1.0870,与海岸线长度变化趋势相同;从空间上看,北海、钦州、防城港段海岸线分维数逐渐增大,说明了北部湾海岸线由东向西逐渐变得曲折与复杂。从海岸线变迁的速率来看,总体变化速率为3.48m/a,77.30%的岸段变化速率低于平均值(保持稳定),22.70%的岸段变化速率远高于平均值(变化剧烈);从海岸线变迁的方向来看,约68.20%的岸段向海推(淤)进,约27.30%的岸段保持稳定,仅有约4.50%的岸段向陆侵蚀。人类生产建设活动是引起北部湾海岸线变化的主要驱动力,河口淤积与水力侵蚀对海岸线影响较小。 | 黎良财 LU Dengsheng 张晓丽 朱长明 邓利 | 2015 | 海洋湖沼通报2015，，4： | 10 |
| 10 | Methods to extract impervious surface areas from satellite images显示文摘Impervious surface area(ISA)is an important parameter for many environmental or socioeconomic relevant studies.The unique characteristics of remote sensing data made it the primary data source for ISA mapping at various scales.This paper summarizes general ISA mapping procedure and major techniques and discusses impacts of scale issues on selection of remote sensing data and corresponding algorithms.Previous studies have indicated that ISA mapping remains a challenge,especially in urban–rural frontiers and in covering a large area.Effectively employing rich spatial information in high spatial resolution imagery through texture and objectbased methods is valuable.Data fusion of multi-resolution images and spectral mixture analysis are common approaches to reduce the mixed pixel problem in medium spatial resolution images such as Landsat.Coarse spatial resolution images such as MODIS and DMSP-OLS are valuable for national and global ISA mapping but more research is needed to effectively integrate multisource/scale data for improving mapping performance.Development of an optimal procedure corresponding to specific study areas and purposes is required to generate accurate ISA mapping results. | Dengsheng Lu Guiying Li Wenhui Kuang Emilio Moran | 2014 | International Journal of Digital Earth2014，7，2： | 5 |
| 11 | Review of shape representation and description techniques显示文摘 | Dengsheng Zhang Guojun Lu | 2003 | Pattern Recognition2003，，1： | 2 |
| 12 | A survey of content-based image retrieval with high-level semantics显示文摘 | Ying Liu Dengsheng Zhang Guojun Lu Wei-Ying Ma | 2006 | Pattern Recognition2006，，1： | 2 |
| 13 | Examining effective use of data sources and modeling algorithms for improving biomass estimation in a moist tropical forest of the Brazilian Amazon显示文摘Previous research has explored the potential to integrate lidar and optical data in aboveground biomass(AGB)estimation,but how different data sources,vegetation types,and modeling algorithms influence AGB estimation is poorly understood.This research conducts a comparative analysis of different data sources and modeling approaches in improving AGB estimation.RapidEye-based spectral responses and textures,lidar-derived metrics,and their combination were used to develop AGB estimation models.The results indicated that(1)overall,RapidEye data are not suitable for AGB estimation,but when AGB falls within 50–150 Mg/ha,support vector regression based on stratification of vegetation types provided good AGB estimation;(2)Lidar data provided stable and better estimations than RapidEye data;and stratification of vegetation types cannot improve estimation;(3)The combination of lidar and RapidEye data cannot provide better performance than lidar data alone;(4)AGB ranges affect the selection of the best AGB models,and a combination of different estimation results from the best model for each AGB range can improve AGB estimation;(5)This research implies that an optimal procedure for AGB estimation for a specific study exists,depending on the careful selection of data sources,modeling algorithms,forest types,and AGB ranges. | Yunyun Feng Dengsheng Lu Qi Chena Michael Keller Emilio Moran Maiza Nara dos-Santos Edson Luis Bolfe Mateus Batistella | 2017 | International Journal of Digital Earth2017，10，10： | 2 |
| 14 | RECENT DEVELOPMENT OF ERROR CONTROL CODES FOR FUTURE COMMUNICATION AND STORAGE SYSTEMS显示文摘The outstanding performance of error control codes has attracted the interest of the information and communications theory community and industry partners for more than 20 years since Turbo codes were invented.In recent years,there are more and more scenarios in modern communication and digital storage systems,such as wireless communications,optical communications,fl ash memories,computer hard drives,sensor networks, | zesong fei jinhong yuan ming xiao baoming bai shengli zhang dengsheng lin | 2017 | China Communications2017，14，8： | 2 |
| 15 | Estimation of land surface temperature–vegetation abundance relationship for urban heat island studies显示文摘 | Qihao Weng Dengsheng Lu Jacquelyn Schubring | 2003 | Remote Sensing of Environment2003，，4： | 2 |
| 16 | Packet combining based on cross-packet coding显示文摘We propose a packet combining scheme of using cross-packet coding. With the coding scheme, one redundant packet can be used to ensure the error-correction of multiple source packets. Thus, the proposed scheme can increase the code rate. Moreover, the proposed coding scheme has also advantages of decoding complexity, reducing undetectable errors (by the proposed low-complexity decoder) and flexibility (applicable to channels with and without feedback). Theoretical analysis under the proposed low-complexity decoding algorithm is given to maximize the code rate by optimizing the number of source packets. Finally, we give numerical results to demonstrate the advantages of the proposed scheme in terms of code rates compared to the traditional packet combining without coding or ARQ (automatic repeat-request) techniques. | LIN DengSheng XIAO Ming LI ShaoQian | 2013 | Science China(Information Sciences)2013，56，2： | 2 |
| 17 | Shape -based image retrieval using generic Fourier descriptor显示文摘 | ZHANG Dengsheng LU Guojun | 2002 | Signal processing: Image communication2002，17，： | 1 |
| 18 | Spectral mixture analysis of AS- TER images for examining the relationship between urban thermal features and biophysical descriptors in Indianapolis, Indiana, USA 显示文摘 | Dengsheng Lu Qihao Weng | 2006 | Remote Sensing of Environment2006，104，15： | 1 |
| 19 | Estimation of land surface temperature-vegetation abundance relationship for urban heat island studies显示文摘 | Qihao Weng Dengsheng Lu Jacquelyn Schubring | 2004 | Remote Sens Environ2004，89，： | 1 |
| 20 | Assessing the effects of land use and land cover patterns on thermal conditions using landscape metrics in city of Indianapolis, United States 显示文摘 | WENG Qihao LIU Hua LU Dengsheng | 2007 | Urban Ecosyst2007，，10： | 1 |
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