【摘要】 湿地可以维持自然生态环境稳定和碳循环稳定,随着城市化步伐的加快、海产养殖业的发展,辽河口湿地生态系统遭到了一定程度的破坏。利用辽河口湿地自然植被实测生物量和遥感影像提取的归一化植被指数,建立了基于遥感影像的生物量回归模型,经过对比分析得出二项式函数为最优模型。通过该模型反演出的生物量计算得到辽河口湿地自然植被的碳储量为969 323.100 t,与实测值1 077 146.018 t相比,相对误差为10.0%,表明利用遥感影像反演植被生物量,可以得到较精确的辽河口湿地自然植被的碳储量。更多还原

【Abstract】 Wetland can maintain the stability of natural ecological environment and carbon cycle. With the acceleration of urbanization and the development of marine aquaculture, the wetland ecosystem of Liaohe River estuary has been damaged to a certain extent. Based on the analysis of measured biomass of natural vegetation and normalized vegetation index extracted from remote sensing images, the biomass regression model based on remote sensing image was established. Through comparative analysis, the binomial function was the optimal model. The carbon reserves of natural vegetation in Liaohe River estuary wetland is 969 323.100 t, which is 10% compared with the measured value of 1 077 146.018 t. Using remote sensing image to retrieve vegetation biomass, we can get more accurate carbon reserves of natural vegetation in Liaohe River estuary wetland.更多还原