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以TM影像和野外实测数据为基础,利用GIS和面向对象技术提取大沙河自然保护区2000年和2010年生态系统分布信息,建立碳储存功能评估指标体系,计算出研究区两期碳储量总量,并对其空间格局和规律进行分析。结果表明:2000年碳储量为318.22万t,平均碳密度为117.90t/hm2,2010年为372.51万t,平均碳密度为138.02t/hm2,变化量为54.29万t,年变化率为5.43万t/a。保护区10年间碳储存量明显增加,生态环境得到显著改善。
Based on TM images and field data, GIS and object-oriented techniques were used to extract the ecosystem distribution information of Dashahe Nature Reserve in 2000 and 2010 and set up a carbon storage function evaluation index system to calculate the total amount of carbon storage in the two phases of the study area , And analyze its spatial pattern and law. The results showed that in 2000, the carbon storage was 3.1822 million tons, the average carbon density was 117.90 t / hm2, and the average carbon density was 37.251 million tons in 13810. The average carbon density was 138.02 t / hm2, the variation was 542.9 thousand tons and the annual change rate was 54,300 t / a. During the 10 years of protected areas, the carbon storage increased obviously, and the ecological environment was significantly improved.