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中国高分辨率温度和降水模拟数据的验证 被引量:36
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作者 朱华忠 罗天祥 christopher daly 《地理研究》 CSCD 北大核心 2003年第3期349-359,共11页
PRISM模型是一种基于地理特征和回归统计方法生成气候图的模型。基于中国及其周边国家地区 2 4 5 0多个气象台站观测数据 ,以PRISM模型模拟生成了中国 2 5′× 2 5′ (≈ 4~5km)逐月温度和降水数据。利用独立于模拟数据的中国生... PRISM模型是一种基于地理特征和回归统计方法生成气候图的模型。基于中国及其周边国家地区 2 4 5 0多个气象台站观测数据 ,以PRISM模型模拟生成了中国 2 5′× 2 5′ (≈ 4~5km)逐月温度和降水数据。利用独立于模拟数据的中国生态系统研究网络 18个野外观测站的长年气候观测数据 ,检验了PRISM模型的模拟结果 ,表明PRISM模型较好地模拟了我国温度和降水的空间分布及季节变化 ,除了在高山和亚热带地区由于地表覆盖和局部地形的差异影响模拟结果 ,其模拟值与实测值之间的趋势线同 1∶1线基本一致 ,具有显著相关关系 。 展开更多
关键词 平均最高气温 平均最低气温 降水 PRISM模型 CERN生态站
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Forage Species Suitability Mapping for China Using Topographic, Climatic and Soils Spatial Data and Quantitative Plant Tolerances
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作者 David B Hannaway christopher daly +7 位作者 CAO Wei-xing LUO Wei-hong WEI Yu-rong ZHANG Wei-li XU Ai-guo LU Chang-ai SHI Xue-zheng LI Xiang-lin 《Agricultural Sciences in China》 CAS CSCD 2005年第9期660-667,共8页
Selecting plants adapted to the climatic and soil conditions of specific locations is essential for environmental protection and economic sustainability of agricultural and pastoral systems. This is particularly true ... Selecting plants adapted to the climatic and soil conditions of specific locations is essential for environmental protection and economic sustainability of agricultural and pastoral systems. This is particularly true for countries like China with a diversity of climates and soils and intended uses. Currently, proper species selection is difficult due to the absence of computer-based selection tools. Climate and soil GIS layers, matched with a matrix of plant characteristics through rules describing species tolerances would greatly improve the selection process. Better matching will reduce environmental hazards and economic risks associated with sub-optimal plant selection and performance. GIS-based climate and soil maps have been developed for China. A matrix of quantitative species tolerances has been developed for example forage species and used in combination with an internet map server that allows customized map creation. A web-based decision support system has been developed to provide current information and links to original data sources, supplementary materials, and selection strategies. 展开更多
关键词 GEOSPATIAL Climate SOILS ECO-PHYSIOLOGY Internet map server (IMS) Dynamic mapping system Decision support system (DSS) Perennial ryegrass Lolium perenne L. ORCHARDGRASS Dactylis glomerata L. Tall rescue Lolium arundinaceum (Schreb.) Darbysh
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