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Conference on Remote Sensing and Modeling of Ecosystems for Sustainability XI

作者： Ning, Jicai Gao, Zhiqiang Zhang, Wenjiang Shi, Runhe Gao, Wai Chinese Acad Sci Yantai Inst Coastal Zone Res Yantai 264003 Peoples R China Colorado State Univ USDA UV B Monitoring & Res Program Nat Resource Ecol Lab Ft Collins CO USA Sichuan Univ State Key Lab Hydraul & Mt River Engn Chengdu 610004 Peoples R China

ISBN: (纸本)9781628412482

The Soil and Water Assessment Tool (SWAT) is a well established eco-hydrologic model. For the semi-distributed hydrological model, Hydrological res.onse Units (HRUs) are the basic modeling units, which are defined by land use, soil and slope. Land surface patches within one Hydrological res.onse Units (HRUs) should bear identical hydrological properties (including land use, soil, slope and management) and thus have similar hydrological res.onses. However, it is difficult to determinate the spatial locations and to describe the interactions between different HRUs. This study proposed one schema to discretize HRUs for SWAT on the basis of generalized data input. Within a small watershed of Taihu basin, the data of land use and soil were generalized for discretizing SWAT HRUs. The SWAT model was modified with the discretized HRUs. The res.lted showed that the SWAT improved by discretization schema could be more sensitive the runoff lag process and thus achieved better simulation accuracy.

关键词： SWAT HRU Spatial Discretization Runoff lag Taihu Lake basin

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res.arch on construction of Web 3D-GIS based on Skyline 11

Research on construction of Web 3D-GIS based on Skyline

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Conference on Remote Sensing and Modeling of Ecosystems for Sustainability XI

作者： Wang, Tingting Gao, Zhiqiang Ning, Jicai Chinese Acad Sci Inst Geog Sci & Nat Resources Res Beijing 100101 Peoples R China Chinese Acad Sci Yantai Inst Coastal Zone Res Yantai 264003 Peoples R China Colorado State Univ USDA UV B Monitoring & Res Program Ctr Remote Sensing & Modeling Agr Sustainabil Nat Resource Ecol Lab Ft Collins CO USA

ISBN: (纸本)9781628412482

This paper further studies the construction, publishing and display of three-dimensional (3D) scenes and their implementation based on Skyline family of software, combining remote sensing images and DEM data. Among them, the SketchUp software is used to build landscape models and the JavaScript programming language is adopted to achieve web browsing of 3D scenes. The study provides a useful exploration for the establishment of Web 3D-GIS combining Web GIS technology and 3D visualization technology.

关键词： Web GIS 3D GIS Skyline

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Geoscience Information Integration and Visualization res.arch of Shandong Province, China based on ArcGIS Engine 11

Geoscience Information Integration and Visualization Researc...

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Conference on Remote Sensing and Modeling of Ecosystems for Sustainability XI

作者： Xu, Mingzhu Gao, Zhiqiang Ning, Jicai Chinese Acad Sci Inst Geog Sci & Nat Resources Res Beijing 100101 Peoples R China Chinese Acad Sci Yantai Inst Coastal Zone Res Yantai 264003 Peoples R China Colorado State Univ USDA UV B Monitoring & Res Program Ctr Remote Sensing & Modeling Agr Sustainabil Nat Resource Ecol Lab Ft Collins CO USA

ISBN: (纸本)9781628412482

To improve the access efficiency of geoscience data, efficient data model and storage solutions should be used. Geoscience data is usually classified by format or coordinate system in existing storage solutions. When data is large, it is not conducive to search the geographic features. In this study, a geographical information integration system of Shandong province, China was developed based on the technology of ArcGIS Engine,. NET, and SQL Server. It uses Geodatabase spatial data model and ArcSDE to organize and store spatial and attribute data and establishes geoscience database of Shangdong. Seven function modules were designed: map browse, database and subject management, layer control, map query, spatial analysis and map symbolization. The system's characteristics of can be browsed and managed by geoscience subjects make the system convenient for geographic res.archers and decision-making departments to use the data.

关键词： GIS geoscience data geodatabase ArcGIS Engine data management system

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The res.onses of Vegetation Water Content (EWT) Along a Coastal Region using Remote Sensing` 11

The Responses of Vegetation Water Content (EWT) Along a Coas...

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Conference on Remote Sensing and Modeling of Ecosystems for Sustainability XI

作者： Gao, Zhiqiang Wang, Tingting Ning, Jicai Gao, Wei Chinese Acad Sci Yantai Inst Coastal Zone Res Yantai 264003 Peoples R China Chinese Acad Sci Inst Geog Sci & Nat Resources Beijing 100101 Peoples R China Colorado State Univ USDA UV B Monitoring & Res Program Ctr Remote Sensing & Modeling Agr Sustainabil Nat Resource Ecol Lab Ft Collins CO USA

ISBN: (纸本)9781628412482

This paper retrieved the vegetation water content EWT (equivalent water thickness) information and the relevant parameters for the land surface from full-band TM remote sensing data. The effects of surface water heat flux and surface covering on the EWT were analyzed via studies of the regional land cover status and the combined EWT with land surface parameters. This paper also analyzed the roles and limitations of EWT in drought monitoring combined with classification of the regional drought and regional water stres. index (RWSI).

关键词： Equivalent Water Thickness (EWT) Land Surface Parameters Remote Sensing res.onses

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Seasonal biomass allocation in a boreal perennial grass (Phalaris arundinacea L.) under elevated temperature and COb>2b> with varying water regimes

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PLANT GROWTH REGULATION 2014年第2期74卷 153-164页

作者： Zhang, Chao Kellomaki, Seppo Zhong, Qicheng Wang, Kaiyun Gong, Jinnan Qiao, Yunzhou Zhou, Xiao Gao, Wei Univ Eastern Finland Sch Forest Sci Joensuu 80101 Finland E China Normal Univ Key Lab Geog Informat Sci Minist Educ Shanghai 200241 Peoples R China E China Normal Univ Shanghai Key Lab Urban Ecol Proc & Ecorestorat Shanghai 200062 Peoples R China Colorado State Univ USDA UV B Monitoring & Res Program Nat Resource Ecol Lab Ft Collins CO 80523 USA

The aim of this study was to analyze and model how biomass is allocated to the leaves, stems, and roots of perennial grass (reed canary grass, Phalaris arundinacea L., hereafter RCG) under elevated temperature (ET) (+approx. 3 A degrees C) and CO2 (approx. 700 mu mol mol(-1)) and with variable groundwater levels (high to low water levels) in a boreal environment. For this purpose, RCG plants were grown in environmentally controlled chambers over two growing seasons (April-September of 2009 and 2010), and the plant organ biomass (leaves, stems, and roots) was measured seven times over the entire growing season. The res.lts showed that biomass production was mainly allocated to the leaves (LMF) and stems (SMF) early in the growing season, to the stems in the middle of the growing season, and to the roots (RMF) later in the growing season. Compared to ambient conditions, ET treatments increased LMF and SMF, and decreased RMF over the growing season under well-water conditions. Under low groundwater level, ET treatments decreased LMF and increased RMF throughout the growing season, and increased SMF in early periods and then decreased later in the growing season. CO2 enrichment did not significantly affect the seasonal allocation pattern between plant organs. The effect of the groundwater level on biomass allocation was stronger than that of the climatic treatments. In conclusion, plant phenology controlled the seasonal course of biomass allocation in RCG and climatic treatments affected biomass allocation to each of the three plant organs, while the direction and extent of climate-related changes in biomass allocation depended on the availability of groundwater. The influence of groundwater level appeared to be crucial for the carbon gain regarding the production of RCG biomass for energy purpose and the concurrent sequestration of carbon in soils under changing climate in the mire sites used to cultivate RCG.

关键词： CO2 Temperature Groundwater level biomass allocation Phalaris arundinacea L. boreal zone

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Analysis on the balance between Supply and Demand of Crop Land in Yantai City of China in 2020 11

Analysis on the Balance Between Supply and Demand of Crop La...

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Conference on Remote Sensing and Modeling of Ecosystems for Sustainability XI

作者： Wang, Qiuxian Gao, Zhiqiang Ning, Jicai Wang, Ye Gao, Wei Chinese Acad Sci Yantai Inst Coastal Zone Res Yantai 264003 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China Colorado State Univ Nat Resource Ecol Lab USDA UV B Monitoring & Res Program Ft Collins CO 80523 USA Ludong Univ Inst Geog & Planning Yantai 264025 Peoples R China

ISBN: (纸本)9781628412482

With the fast development of economy and urbanization, the phenomenon of city construction occupying Cropland often happens. As the contradiction between human and land becomes more prominent, the contradiction between the supply and demand of the cropland are more radical in Yantai City of China. Analysis on the balance between supply and demand of cropland is the main basis to determine land use objectives, and also the basis of editing land use planning. In this paper, the authors firstly calculated the potential of cropland supply in Yantai for 2020 according to its current number of the cropland and the potential quantity of other kinds of land changing to the cropland, and then calculated the demand for cropland in 2020 with the methods of the population prediction and its national economic development planning. Then the balance between the supply and demand of cropland was analyzed. The res.lts were that the cropland in Yantai city in 2020 were lower than those of its demand. At last, to relieve the contradiction, the authors tried to put forward some recommendations like optimizing the structure to coordinate the balance between the supply and demand of the cropland etc. to realize its regional sustainable development.

关键词： Land balance between land supply and demand Analysis 2020 Yantai

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The study of the spatio-temporal changes of drought in the Mongolian Plateau in 40 years based on TVDI 11

The study of the spatio-temporal changes of drought in the M...

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Conference on Remote Sensing and Modeling of Ecosystems for Sustainability XI

作者： Cao Xiaoming Feng Yiming Wang Juanle Gao, Zhiqiang Ning, Jicai Gao, Wei Chinese Acad Sci Yantai Inst Coastal Zone Res Yantai 264003 Peoples R China China Acad Forestry Inst Desertificat Studies Beijing 100091 Peoples R China Chinese Acad Sci Inst Geog Sci & Nat Resources Res State Key Lab Resources & Environm Informat Syst Beijing 100101 Peoples R China Colorado State Univ USDA UV B Monitoring & Res Program Ctr Remote Sensing & Modeling Agr Sustainabil Nat Resource Ecol Lab Ft Collins CO USA

ISBN: (纸本)9781628412482

This paper pres.nts a new drought assessment method by modifying the NDVI-Ts space, which named NDVI-Ts general space. based on this method, the general dry side and wet side equation were established for the period of 1981 and 2010 in the Mongolian Plateau. The res.lts showed that: 1) the NDVI-Ts general space was more stable for monitoring drought than that for the single time Remote Sensing data;2) TVDI was lower in the areas with high latitude, high vegetation cover, well-growing vegetation, which indicated higher soil moisture. 3) The dry level area was the largest one, and the normal area was the second largest, the wet level area was the third, the extremely dry and extremely wet area was the least. 4) The res.lts showed that the fluctuated area mainly occurred in the normal level and the dry level, the extremely wet level, the wet level and extremely dry level basically remained unchanged. It may be explored that, the aridification became more serious in the 1981 - 2012, the area transformation mainly occurred between the normal level and dry level.

关键词： drought assessment Ts-NDVI space the Mongolian plateau TVDI

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Global validation of FY-3A total ozone unit (TOU) total ozone columns using ground-based brewer and Dobson measurements

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INTERNATIONAL JOURNAL OF REMOTE SENSING 2013年第14期34卷 5228-5242页

作者： bai, Kaixu Liu, Chaoshun Shi, Runhe Zhang, Yuan Gao, Wei E China Normal Univ Minist Educ Key Lab Geog Informat Sci Shanghai 200241 Peoples R China Colorado State Univ USDA UV B Monitoring & Res Program Nat Resource Ecol Lab Ft Collins CO 80523 USA

Analysis of the accuracy and variability of total ozone columns (TOC) has been conducted by many studies, while the TOC observations derived from the total ozone unit (TOU) on board the Chinese FengYun-3A (FY-3A) satellite platform are notably less well documented. Therefore, in this pres.nt study, we mainly focus on the global-scale validation of TOU-derived total ozone column data by comparing them with spatially and temporally co-located ground-based measurements from the well-established brewer and Dobson spectrophotometer for the period July 2009 through December 2011. The res.lts show that TOU-derived total ozone column data yields high accuracy, with the root mean square error less than 5% in comparison with ground-based measurements. Meanwhile, TOU underes.imates brewer measurements by 1.1% in the Northern Hemisphere and overes.imates Dobson total ozone 0.3% globally. In addition, TOU-derived total ozone shows no significant dependence on latitude in comparison with either brewer or Dobson total ozone measurements. Nevertheless, a significant dependence of TOU-derived total ozone is observed on the solar zenith angle (SZA) in comparison with both brewer and Dobson, demonstrating that TOU underes.imates at large SZA and overes.imates at small SZA. Finally, the dependence of satellite ground-based relative difference for total ozone values shows fair agreement when total ozone values are in the range 250450 Dobson units (DU). Overall, the Chinese FY-3A/TOU performs well on total ozone retrieval with high accuracy, and the total ozone data derived from the TOU can be used as a reliable data source for ozone monitoring and other atmospheric applications.

关键词： Mean square error

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Evapotranspiration analysis based on topography algorithm in the Yellow River Delta

Evapotranspiration analysis based on topography algorithm in...

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Conference on Remote Sensing and Modeling of Ecosystems for Sustainability X

作者： Ning, Jicai Gao, Zhiqiang Shi, Runhe Gao, Wei Chinese Acad Sci Yantai Inst Coastal Zone Res Yantai 264003 Peoples R China Colorado State Univ USDA UV B Monitoring & Res Program Nat Resource Ecol Lab Ft Collins CO 80523 USA

ISBN: (纸本)9780819497192

A remote sensing regional evapotranspiration (ET) model was built on the basis of topography correction (slope, aspect and elevation), herein. A variety of satellite data which have visible, near-infrared and thermal infrared remote sensing data can be used by this improved model. Combined with conventional ground meteorological information, it can estimate regional distribution of ET under different climate and terrain conditions, expanding the scope of application. Taking into account the terrain factors, we modified the algorithm of SEbAL model. res.lts showed that, the modified inversion method of evapotranspiration can better reflect actual evapotranspiration condition. Evapotranspiration changes were consistent with land use types. This res.arch indicates that application of medium or high res.lution satellite data to calculate regional ET under undulating landform should consider the impact of terrain. It improves the accuracy of ET estimates and has important reference value for the work of the regional water balance and regional agricultural climate res.arch.

关键词： Evapotranspiration(ET) SEbAL model Landsat TM Yellow River Delta

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Analysis Trends of Ultraviolet b Fluxes in the Continental US with usda and TOMS data

Analysis Trends of Ultraviolet B Fluxes in the Continental U...

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Conference on Remote Sensing and Modeling of Ecosystems for Sustainability X

作者： Gao, Zhiqiang Ning, Jicai Shi, Runhe Gao, Wei Chinese Acad Sci Yantai Inst Coastal Zone Res Yantai 264003 Peoples R China Colorado State Univ USDA UV B Monitoring & Res Program Ft Collins CO 80523 USA Colorado State Univ Ctr Remote Sensing & Modeling Agr Sustainabil Nat Resource Ecol Lab Ft Collins CO 80523 USA

ISBN: (纸本)9780819497192

Many environmental factors, such as stratospheric ozone, aerosols, and clouds, may affect ultraviolet (uv) irradiance. The aim of this study was to investigate the possible association between ultraviolet b (uvb) radiation and total cloud amount, ozone, and aerosols simultaneously, leading to the assessment of possible impacts of climate change on uvb flux variations in the Continental United States (US). Findings indicate that in the past 22 years, while ozone decreased and aerosols increased across the US, the uvb decrease in the northern states was consistent with the increase in aerosols and total cloud amount. Climate change impact res.lting in higher total cloud amount in the northern states might res.lt in lower uvb in the future.

关键词： Aerosols Index Climate Change Ozone TOMS Total Cloud Amount uvI

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