| 摘要: |
| 研究应用ACRM冠层辐射传输模型和MODIS地表反射率数据反演了河北衡水地区?3月初至5月初植被叶面积指数，并分析了其时空分布变化特征。研究时段为冬小麦返青期至成熟期，LAI反演结果与当地冬小麦时空分布特征较为吻合。研究结果显示，基于ACRM冠层辐射传输模型反演植被生化变量具有很大的应用潜力。 |
| 关键词: ACRM MODIS 衡水 LAI |
| DOI：10.7621/cjarrp.1005-9121.20110111 |
| 分类号: |
| 基金项目:农业部“948计划”项目（2009-Z31，?2010-S2）;国际科技合作项目（2010DFB10030）;国家自然科学基金??（40971218）。 |
|
| THE INVERSION OF VEGETATION LEAF AREA INDEX BASED ON THE CANOPY RADIATIVE TRANSFER MODEL ACRM |
|
Jiang Zhiwei, Chen Zhongxin, Ren Jianqiang
|
|
Key?Laboratory?of?Resources?Remote?Sensing?and?Digital?Agriculture，?Ministry?of?Agriculture，?Beijing?100081/Institute?of?Agricultural?Resources?and?Regional?Planning，?Chinese?Academy?of?Agricultural?Sciences，?Beijing?100081
|
| Abstract: |
| The?canopy?radiative?transfer?model?ACRM?and?MODIS?surface?reflectance?information?were?used?for?the?inversion?of?vegetation?leaf?area?index（LAI）at?Hengshui?in?Hebei?from?the?beginning?of?March?to?May?in?2009，and?the?temporal?and?spatial?characteristic?distribution?of?vegetation?LAI?was?analyzed.The?results? showed?that?there?was?a?good?fit?between?the?inversion?of?LAI?and?local?real?distribution?from?winterwheat?regreening?to?mature?stage.To?invert?key?biophysical?and?biochemical?parameters?of?land?surfacevegetation?using?ACRM?has?a?great?application?potential. |
| Key words: ACRM MODIS Hengshui LAI |
