| 俄罗斯布里亚特共和国植被NPP时空分布格局及其对气候变化的响应 |
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| 引用本文： | 任正超,朱华忠,史华,柳小妮. 俄罗斯布里亚特共和国植被NPP时空分布格局及其对气候变化的响应[J]. 资源与生态学报(英文版), 2011, 0(3): 257-265 |
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| 作者姓名： | 任正超 朱华忠 史华 柳小妮 |
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| 作者单位： | 甘肃农业大学草业学院草业生态系统教育部重点实验室;中国科学院地理科学与资源研究所;美国地质调查局和地球资源观测和科学中心ASRC研究和技术服务公司; |
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| 基金项目： | National Natural Science Foundation of China(No.30960264 and 40771146); Basic Research Project of the Ministry of Science and Technology(No.2007FY110300-1) |
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| 摘 要： | 研究利用遥感和气象数据以及改进后的CASA模型（生物温度代替月均温）,估算俄罗斯布里亚特共和国2000-2008年的植被NPP,并验证模型的精度,分析该地区植被NPP的时空分布格局及其对气候变化的响应规律。研究结果表明：改进后的CASA模型具较高精度,可运用于布里亚特共和国植被NPP的估算。时间上,植被NPP年际上呈现为在波动中上升的趋势,月份上表现为先升后降的单峰变化趋势;空间上,植被NPP呈现出随经度的增加而增大,随纬度的增加而减小,由西南到东北逐渐递增的分布格局;不同植被类型的NPP从大到小依此为：草地、沼泽林〉森林〉森林、草原〉稀树草原〉高山植被。该地区植被NPP的变化主要受气温和降水量变化的作用。
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| 关 键 词： | 植被NPP 时空变化 CASA模型 气候因子 布里亚特共和国 |
Spatio-temporal Distribution Pattern of Vegetation Net Primary Productivity and Its Response to Climate Change in Buryatiya Republic,Russia |
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| REN Zhengchao ,,ZHU Huazhong ,SHI Hua , LIU Xiaoni College of Pratacultural Science,Gansu Agricultural University,Key Laboratory of Grassl, Ecology System,Ministry of Education,Lanzhou ,China. Spatio-temporal Distribution Pattern of Vegetation Net Primary Productivity and Its Response to Climate Change in Buryatiya Republic,Russia[J]. Journal of Resources and Ecology, 2011, 0(3): 257-265 |
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| Authors: | REN Zhengchao ZHU Huazhong SHI Hua LIU Xiaoni College of Pratacultural Science Gansu Agricultural University Key Laboratory of Grassl Ecology System Ministry of Education Lanzhou China |
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| Affiliation: | REN Zhengchao 1,2,ZHU Huazhong 2,SHI Hua 3 and LIU Xiaoni 1 1 College of Pratacultural Science,Gansu Agricultural University,Key Laboratory of Grassland Ecology System,Ministry of Education,Lanzhou 730070,China,2 Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,3 ASRC Research and Technology Solutions (ARTS),Contractor to the U.S. Geological Survey (USGS),Earth Resources Observation and Science (EROS) Center,Sioux Falls SD 57198,USA |
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| Abstract: | As a critical index for monitoring the response of terrestrial ecosystems to climate change, net primary productivity (NPP) is widely used to reflect the vegetation productivity under natural conditions. However, little is known about vegetation NPP in Buryatiya Republic, Russia. To fully understand temporal and spatial variations in vegetation NPP and its response to climate change, satellite images of Moderate-resolution Imaging Spectroradiometer (MODIS) Normalized Difference Vegetation Index (NDVI) produ... |
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| Keywords: | vegetation NPP temporal and spatial variation CASA Model climatic factor Buryatiya Republic |
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