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Characteristics of landscape information Tupu of the Yellow River swings and its subdeltas during 1.55―2.00

Science china Earth Sciences 2007年第10期50卷 1566-1577页

作者： YE QingHua1,3., CHEN ShenLiang2. HUANG Chong4, XUE YunChuan5, TIAN GuoLiang3. CHEN ShuPeng3.4, SHI YaNan4, LIU QingSheng4 & LIU GaoHuan4 1 Institute of Tibetan Plateau Research (ITPR), Chinese Academy of Sciences (CAS), beijing 100085, china 2.State Key Laboratory of Estuarine and Coastal Research, East china normal university, Shanghai 2.0062. china 3.State Key Laboratory of remote Sensing Science, Institute of remote Sensing Applications (IRSA), CAS, beijing 100101, china 4 Institute of Geographic Sciences and Natural Resources Research, CAS, beijing 100101, china 5 Qingdao Meteorological Bureau, Qingdao 2.6003. china Institute of Tibetan Plateau Research (ITPR) Chinese Academy of Sciences (CAS) Beijing China State Key Laboratory of remote Sensing Science Institute of Remote Sensing Applications (IRSA) CAS Beijing China State Key Laboratory of Estuarine and Coastal Research East China Normal University Shanghai China Institute of Geographic Sciences and Natural Resources Research CAS Beijing China Qingdao Meteorological Bureau Qingdao China

Based on the theories and methods of cartography on spatial pattern and temporal evolution in Geo-information Tupu (Carto-methodology in Geo-information, CMGI) and the quantitative measurements of pattern and process in landscape ecology, the methodology of landscape information Tupu in studying the swing process of the Yellow River (YR) over the Yellow River Delta (YRD) during 1.55― 2.00 has been demonstrated. The main content includes: (1. methodology of landscape information Tupu; (2. evolution process Tupu of YR rump channels; (3. evolution process Tupu of the 7 pieces of subdeltas in YRD during 1.55―2.00; (4) landscape information Tupu of the modern YRD and the current YRD; (5) landscape information Tupu of YR rump channels on the 7 pieces of subdeltas during 1.55―2.00; and (6) corridor-matrix landscape information Tupu by YR swings. The methodology of landscape information Tupu here is still primary but we hope that it could provide a new tool for exploring an integrated research on spatiotemporal approaches for landscape "pattern and process".

关键词： Geo-information Tupu, landscape information Tupu, spatiotemporal analysis, the Yellow River (YR), the Yellow River Delta (YRD), corridor-matrix landscape

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The definition of effective emissivity of land surface at the scale of remote sensing pixels

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Chinese Science Bulletin 1999年第23期44卷 2154-2158页

作者： LI Xiaowen and WANG Jindi Research Center for remote Sensing and {1., {2. {3. Unirersity, Keying 1.0875, china Center for remote Sensing, Boston Univ. , MA02.1., USA Research Center for remote Sensing and CIS Beijing Normal University Beijing China Center for remote Sensing Boston Univ. USA

remote sensing (RS) of land surface temperature (LST) is a very challenging problem at the present development stage of RS science. Tremendous efforts have been devoted to atmosphere correction and temperature emissivity separation (TES) of new LST product algorithms. However, the mechanism of directionality of thermal emission from land surface remains unknown, and even worse, there are confusions on the definition of the effective emissivity of land surface at the scale of RS pixels. The mechanism of directionality of thermal emission

关键词： non-isothermal pixel effective emissivity. directionality of thermal emission.

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Quantitative estimation of the shrub canopy LAI from atmosphere-corrected HJ-1.CCD data in Mu Us Sandland

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Science china Earth Sciences 2010年第S1期53卷 26-33页

The leaf area index(LAI) is an important ecological parameter that characterizes the interface between vegetation canopy and the *** addition,it is used by most process-oriented ecosystem *** paper investigates the potential of HJ-1.CCD data combined with linear spectral unmixing and an inverted geometric-optical model for the retrieval of the shrub LAI in Wushen Banner of Inner Mongolia in the Mu Us ***(Moderate Resolution Atmospheric Radiance and Transmittance Model) was used for atmospheric *** was extracted using the threshold of the normalized difference vegetation index,with which water bodies and farmland were separated,in combination with a vegetation map of the People's Republic of{1.(1.1.00000).Using the geometric-optical model,we derive the per-pixel reflectance as a simple linear combination of two components,namely sunlit background and *** fraction of sunlit background is related to the shrub *** the support of HJ-1.CCD data,we employ linear spectral unmixing to obtain the fraction of sunlit background in an atmospherically corrected HJ *** addition,we use the measured shrub canopy structural parameters for shrub communities to invert the geometric-optical model and retrieve the pixel-based shrub *** total,1. sample plots collected in Wushen Banner of Inner Mongolia are used for *** results of the shrub LAI show good agreement with R2.of 0.81. and a root-mean-squared error of 0.1.3.

关键词： shrub leaf area index inversion HJ-1 data geometric-optical model MODTRAN Mu Us Sandland

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Using remote sensing to research {1. wetlands dynamics

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Science china(Technological Sciences) 2006年第Z2期49卷 97-107页

作者： ZHAO Wenji, GONG Zhaoning, GONG Huili, LI Xiaojuan, ZHANG Songmei & LI Jing Key Lab of Resource Environment and gis of beijing, Capital {2. {3., beijing 10003., china Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 13.012. china College of Resources Science and Technology, beijing {2. {3., beijing 1.0875, china Capital normal Univ Key Lab Resource Environm Beijing 100037 Peoples R China Capital normal Univ GIS Beijing Beijing 100037 Peoples R China Chinese Acad Sci NE Inst Geog & Agroecol Changchun 130012 Peoples R China beijing {1. Univ Coll Resources Sci & Technol Beijing 100875 Peoples R China

In beijing, where wetlands are important to municipal freshwater conservation and biodiversity retention, three different types of wetlands were identified: riverside wetlands, wetlands surrounding lakes and reservoirs, and wetlands in municipal *** sensing technology was applied in combination with field investigations to monitor and analyze the changes in these wetlands, and a combination of fusion technologies,Landsat TM/ETM+ and IKONOS imaging, was used to investigate and map them. This study indicates that not only have wetland areas been reduced by half, but also their ecological environments have been degraded because of rapid economic development and population increase. Suggestions based on this research are made to reconstruct the ecological environment of the wetlands and return them to their previous state.

关键词： beijing, wetland resource, remote sensing technology, ecological environment, dynamics.

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Research on the damage of the Great Wall of Ming Dynasty in beijing by {1. sensing

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Science china(Technological Sciences) 2008年第S1期51卷 195-202页

作者： LI XiaoJuan,GONG HuiLi,ZHANG Ou,ZHANG WeiGuang & SUN YongHua The Key Lab of 3. Information Acquisition and Application,MOE,the Key Lab of {1. Resource Envi-ronment and gis,and College of Resource Environment & Tourism,Capital {2. {3.,{1. 1.003.,china The Key Lab of 3. Information Acquisition and Application MOE the Key Lab of Beijing Resource Environment and GIS and College of Resource Environment & Tourism Capital Normal University Beijing China

Using aerial photos and high resolution satellite images of the year of 2.04,this paper establishes {1. sensing interpretation marks of the Great Wall of Ming Dynasty's damaged levels. Based on field survey and {1. sensing survey in 1.84,we analyzed present situation and changing characteristics being of the Great Wall of Ming Dynasty in {2.. The results show that about 7.02. of the wall is well-preserved (about 2.861.m); 3..5% of the wall is slightly or moderately dam-aged (about 1.5989 m); 61.5% of the wall is badly damaged (about 2.63.9 m). This paper analyzes the dynamic change of the Great Wall of Ming Dynasty. It shows that the damaged situation of the Great Wall of Ming Dynasty in {2. is serious. From 1.84 to 2.04,the well-preserved wall is decreased by 3.2.6 m (decreased by 56%); badly damaged wall increased by 51.0}7 m (increased by 67%). Finally,this paper analyzes the influence factors of damaging Great Wall. The conclusion is as follows: The damaged Great Wall is generally near the roads and villages,small slope,and easily arriving land.

关键词： the Great Wall of Ming Dynasty remote sensing interpreting damage dynamic change spatial analysis

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Impacts of the Wenchuan Earthquake on the Giant Panda Nature Reserves in china

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Journal of Mountain Science 2010年第2期7卷 197-206页

作者： DENG Xiangzheng JIANG Qunou GE Quansheng YANG LinSheng Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Center for Chinese Agricultural Policy Chinese Academy of Sciences Beijing 100101 China Graduate university of the ChineseAcademy of Sciences Beijing 100049 China

The Wenchuan Earthquake that occurred in May of 2.08 caused damages to large areas of Sichuan,Gansu,and Shaanxi provinces in *** from local governments and related management agencies show that the giant panda nature reserves in the earthquake-hit areas were heavily *** estimates in this paper of the impacts of the earthquake on the giant panda in the earthquake-hit areas were made based on the interpretation of {1. sensing images and information collected by field survey.A rapid assessment method was designed to estimate the damages of the earthquake on giant panda *** using visual interpretation methods,we decoded the {1. sensing images of the disaster area in the 49 giant panda nature *** results showed that the Wenchuan Earthquake and the succeeding secondary geological disasters caused great damages to the giant panda nature reserves and disturbed the {2. life of the giant pandas there (e.g.,landscape fragmentation increased significantly).Undoubtedly,the life of the giant pandas there was ***,although the earthquake caused certain impacts on the giant pandas,it did not really threat their *** so,we still strongly advocate for protection of the giant pandas,and have prioritized a couple of measures to be taken to restore the giant panda nature reserves in the earthquake-hit areas.

关键词： Wenchuan earthquake remote sensing Giant panda Giant panda nature reserve Rapid assessment method

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Estimation of net primary productivity in china using {1. sensing data

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Journal of Geographical Sciences 2001年第1期11卷 14-23页

作者： SUN Rui, ZHU Qi-jiang (Dept. of Resources and Environment Sciences, beijing {1. {2.,{3., china) Dept. of Resources and Environment Sciences Beijing Normal University Beijing China

It is significant to estimate terrestrial net primary productivity (NPP) accurately not only for global change research, but also for natural resources management to achieve sustainable development. remote sensing data can describe spatial distribution of plant resources better. So, in this paper an NPP model based on remote sensing data and climate data is developed. And 1.m resolution AVHRR NDVI data are used to estimate the spatial distribution and seasonal change of NPP in{2.. The results show that NPP estimated using remote sensing data are more close to truth. Total annual NPP in{2. is 2.645X1.9 tC. The spatial distribution of NPP in{2. is mainly affected by precipitation and has the trend of decreasing from southeast to northwest.

关键词： remote sensing net primary productivity vegetation model seasonal change

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The effects of horizontal advection on the spring bloom of phytoplankton in the central Southern Huanghai Sea

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Acta Oceanologica Sinica 2011年第1期30卷 24-31页

作者： HAN Jun WEI Hao ZHAO Liang SHI Yao SHI Jie ZHANG Guosen Key Lab of Physical Oceanography of Ministry of Education Ocean University ofChina Qingdao 266100 China Mailbox 51.1 Beijing 100094 China Tianjin university of Science and Technology Tianjin 300222 China State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai 200062 China

An algal bloom is defined as a relatively rapid increase in the biomass of phytoplankton in an aquatic system. During 3. March to {1. April {1.07, a cruise was conducted in the central Southern Huanghai Sea to investigate the spring bloom processes. The spatial and temporal variations of phytoplankton are discussed based on the in-situ observations and simultaneous remote sensing data. The explosive algal blooming varied quickly in temporal and spatial scales, due to the highly patchy distribution. Data obtained at the {1.anchor stations （BM1.and BM{1. were analyzed in the present study. Horizontal advection is speculated to be responsible for the abrupt decrease in the concentration of chlorophyll-a at stations BM1.and BM{1. At station BM{1. the intermediate high chlorophyll-a concentration, coinciding with the low temperature, was found to be advected from the inshore colder water mass located to the east of the site.

关键词： chlorophyll-a algal bloom horizontal advection remote sensing Southern HuanghaiSea

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Designing regional pattern for ecosystem restoration:A case study

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Science china(Technological Sciences) 2006年第Z1期49卷 86-97页

作者： LI Guoqiang , MA Keming, FU Bojie & LIU Shiling State Key Lab of Systems Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, beijing 1.0085,{1. Department of Water Environment,{1. Institute of Water Resources and Hydropower Research, beijing 1.003.,{1. School of Environmental Sciences, beijing normal university, beijing 1.0875,{1. State Key Lab of Systems Ecology Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing China Department of Water Environment China Institute of Water Resources and Hydropower Research Beijing China School of Environmental Sciences Beijing Normal University Beijing China

Designing regional pattern is challenging for ecosystem restoration both in theory and in practice. The present study proposed a new approach to design regional pattern for ecosystem restoration with a case in the arid valley of Upper Minjiang River, SW china. The procedures are: (1. Determine the regional pattern of main environmental factors based on the relationships between the important environmental factors and the main geographical factors generated from DEM data. ({1. Overlay the maps of the main environmental factors. (3. Generate a lookup table according to the species selection rule we proposed to link the candidate restoration species to the main environmental factors.(4) Determine the regional pattern of ecosystem restoration by positioning the restoration species in the map of environmental factors according to the lookup table. The regional restoration pattern designed in this way would be applicable not only to restoring a region, but also to predicting the future landscape change.

关键词： environmental factors, gis, restoration species, Upper Minjiang River Valley.

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Monitoring Glacier and Supra-glacier Lakes from Space in Mt. Qomolangma Region of the Himalayas on the Tibetan Plateau in china

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Journal of Mountain Science 2009年第3期6卷 211-220页

作者： YE Qinghua ZHONG Zhenwei KANG Shichang Alfred Stein WEI Qiufang LIU Jingshi Key Laboratory of Tibetan Environment Changes and Land Surface Processes Institute of Tibetan Plateau Research Chinese Academy of Sciences (CAS) Beijing 100085 China State Key Laboratory of remote Sensing Science Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University Beijing 100101 China International Institutefor Geo-Information Science and Earth Observation (ITC) PO Box 67500 AA Enschede The Netherlands

Because of the large number and remoteness, satellite data, including microwave data and optical imagery, have commonly been used in alpine glaciers surveys. Using remote sensing and Geographical Information System （{2.） techniques, the paper presents the results of a multitemporal satellite glacier extent mapping and glacier changes by glacier sizes in the Mt. Qomolangma region at the northern slopes of the middle Himalayas over the Tibetan Plateau. Glaciers in this region have both retreated and advanced in the past 3. years, with retreat dominating. The glacier retreat area was 3.2. km2.（or o.75 km^2.yr^-1.during 1.74 and 1.76, 8.68 km^2.（or 0.3. km^2.yr^-1.during 1.76 and 1.92. 1.44 km^2.（or 0.1.2}km^2.yr^-1. during 1.92.2.oo. 1.1. km^2.（or 0.2. km^2.yr^-1.during 2.00-2.03. and 0.52.km^2.（or 0.07 km^2.yr^-1.during 2.03.2.08, respectively. While supra-glacier lakes on the debris-terminus of the Rongbuk Glacier were enlarged dramatically at the same time, from 0.05 km^2.in 1.74 increased to 0.71.km^2.in 2.08, which was more than 1.3}times larger in the last 3. years. In addition, glacier changes also showed spatial differences, for example, glacier retreat rate was the fastest at glacier termini between 5400 and 5700 m a.s.l than at other elevations. The result also shows that glaciers in the middle Himalayas retreat almost at a same pace with those in the western Himalayas.

关键词： Glacier lake remote Sensing Mr. Qomolangma region Himalayas Tibetan Plateau

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