| 四川省莎草、杂类草草地生产力遥感监测 |
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| 引用本文： | 张新跃,周俗,唐川江,张绪校,侯众,严东海.四川省莎草、杂类草草地生产力遥感监测[J].草业科学,2009,26(6):57-61. |
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| 作者姓名： | 张新跃 周俗 唐川江 张绪校 侯众 严东海 |
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| 作者单位： | 四川省草原工作总站,四川,成都,610041;四川省草原工作总站,四川,成都,610041;四川省草原工作总站,四川,成都,610041;四川省草原工作总站,四川,成都,610041;四川省草原工作总站,四川,成都,610041;四川省草原工作总站,四川,成都,610041 |
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| 摘 要： | 采用地面调查与“3S”技术相结合的方法，应用MODIS-NDVI对四川省“莎草Cyperus microiria、杂类草草地”生产力进行监测，对草原植被与生态状况及其变化做出评价。结果表明：NDVI估产模型相关系数r=0.640 3，F检验达到了极显著水平。利用模型计算出2006、2007年“莎草、杂类草草地” 可食牧草鲜草产量分别为188.6亿、203.8亿kg，平均产量3 229.5、3 489.00 kg/hm2；植被盖度分别为79.68%、81.29%；植被高度分别为17.08、16.03 cm；可食率分别为76.1%、75.0%。生产力2007年较2006年增加6.1%，其余指标年际变化不明显。
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| 关 键 词： | MODIS-NDVI 草原生产力 遥感监测 |
Remote sensing based productivity monitoring of sedge and forbs grasslands in Sichuan Province |
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| ZHANG Xin-yue,ZHOU Su,TANG Chuan-jiang,ZHANG Xu-xiao,Hou Zhong,YAN Dong-hai.Remote sensing based productivity monitoring of sedge and forbs grasslands in Sichuan Province[J].Pratacultural Science,2009,26(6):57-61. |
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| Authors: | ZHANG Xin-yue ZHOU Su TANG Chuan-jiang ZHANG Xu-xiao Hou Zhong YAN Dong-hai |
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| Institution: | Grassland Station of Sichuan Province;Chengdu 610041;China |
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| Abstract: | The productivity of sedge and forbs grasslands in Sichuan Province was monitored by using both filed investigation and 3S technologies based on MODIS-NDVI.The result showed that the correlation coefficient of yield estimating mathematical model was 0.640 3(P<0.05).The estimated total editable fresh yields of sedge and forbs grasslands were 1 886 and 2 038 million tons,the average yields were 3 229.5 kg/hm2 and 3 489.0 kg/hm2,the vegetation coverage were 79.68% and 81.29%,the vegetation height was 7.08 cm an... |
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| Keywords: | MODIS-NDVI |
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