中文摘要：

对MERIS陆地叶绿素指数（MTCI）进行了改进,提出了改性的MERIS陆地叶绿素指数（M-MTCI）.该指数在植被覆盖度较高时（LAI〉1）,可获得比MTCI和双峰冠层氮素指数（DCNI）更好的叶绿素提取精度,且比MTCI有更好的抗LAI干扰能力.这些结果的验证是建立在模拟以及实测数据的基础上,具有较好的可靠性,所以M-MTCI具有很好地监测植被叶绿素含量的潜力.

英文摘要：

Modified MERIS Terrestrial Chlorophyll Index （M-MTCI） was developed based on modifications of MTCI. M-MTCI is better than MTCI and Double-peak Canopy Nitrogen Index （DCNI） on aspects of chlorophyll content re- trieval precision （ when LAI 〉 1 ）. Besides M-MTCI has better chlorophyll and LAI effects separation than MTCI. Vali- dationby numerical simulations and in-situ measurements shows that M-MTCI is a reliable Ⅵ for chlorophyll content re- trieval. Therefore, M-MTCI is a prosperous Ⅵfor chlorophyll content monitoring applications.