摘要：Effective estimation of forest ecosystem car-bon storage, and accurate evaluation of its temporal and spatial dynamics is one ofthe hotspots in carbon cycle research. Based on the data of forest resource distribution map, topographic map and geological map, we construct the estimation and transformation model of forest biomass and carbon storage by using common Kriging method and geological factors. Taking forest vegetation in Shaanxi Province as an example, the dynamic change characteristics of forest vegetation carbon storage are described from the aspects of time and space. The results show that in terms of time change, the carbon density has been effectively improved in the past decade, which is thanks to the implementation of the project of re-turning farmland to forest, shelter forest and natural forest protection.The forest coverage area shows a downward trend and then an upward trend, with 2012 as the tuming point. Especially near Hanzhong city and Yulin city, the carbon sink capacity offorest vegetation gradually increases, but there is still a certain gap from the national average carbon density. From the perspective of space, the carbon density of forest vegetation gradually decreases from west to east and from south to north.Among the driving factors, elevation, slope and aspect all have a certain impact on biomass, resulting in uneven spatial dis-tribution of carbon storage.
