| 森林植被湿度遥感监测方法研究 |
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| 引用本文： | 袁金国,刘湘南.森林植被湿度遥感监测方法研究[J].河北省科学院学报,2000,17(3):182-185. |
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| 作者姓名： | 袁金国 刘湘南 |
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| 作者单位： | 1. 河北师范大学资源与环境科学学院,石家庄,050016
2. 东北师范大学城市与环境科学学院,长春,130024 |
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| 摘 要： | 森林植被湿度作为一个自然生态因素,是决定森林火险的主要因子. 本文对森林植被湿度与遥感信息的关系进行了探讨,提出遥感获取植被湿度可采用实际蒸散LE与潜在蒸散LEp的比值LE/LEp,植被指数和植被指数-温度(VIT)梯形3种方法,从而最终实现实时森林火险预测.
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| 关 键 词： | 森林火险 植被湿度 蒸散 VIT梯形 |
| 修稿时间： | 1999-11-29 |
Forest vegetation moisture monitor with remote sensing |
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| YUAN Jin-gou,LIU Xiang-nan.Forest vegetation moisture monitor with remote sensing[J].Journal of The Hebei Academy of Sciences,2000,17(3):182-185. |
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| Authors: | YUAN Jin-gou LIU Xiang-nan |
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| Abstract: | Forest vegetation moisture is one of natural ecological factors,which is the main factor to decide forest fire danger.The relationship between vegetation moisture and remote sensing data is discussed.Three methods of obtaining vegetation moisture with remote sensing are proposed.They are ratio of actual evapotranspiration ( LE) to potential evapotranspiration ( L Ep) ,vegetation index and vegetation index- temperature( VIT) trapezoid. |
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| Keywords: | Forest fire danger Vegetation moisture Evapotranspiration VIT trapezoid |
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