呼伦贝尔市湿地碳储量及分配格局研究

The carbon storage and distribution patterns of wetland in Hulun Buir

利采用RS、GIS和GPS技术对2012年呼伦贝尔市TM卫星假彩色数字影像进行遥感解译,对湿地进行分类并计算其面积大小,在此基础上,开展呼伦贝尔市湿地碳储量研究,量化呼伦贝尔市湿地生态系统碳储量,研究湿地碳储量分配格局。结果表明:呼伦贝尔市湿地总面积约734490 hm2,共有沼泽湿地、湖泊湿地及河流湿地3大类,其中沼泽湿地所占面积最大。呼伦贝尔市共湿地总碳储量为26031.21×104 t。不同类型湿地的碳储量所占比例以沼泽湿地所占比例最大,达到99.17%,远超于其他两种湿地类型;湖泊湿地,所占比例为0.76%;碳储量最少为河流湿地,所占比例仅为0.07%。呼伦贝尔市湿地系统碳储量中底质、水体与植被储碳量分别占总碳储量的97.48%、0.13%、2.39%,说明了湿地底质强大的碳储量能力。

According to the climate characteristics of Inner Mongolia, integrated techniques of RS, GIS and GPS were used to translate Landsat TM artificial satellite remote sense of Hulun Buir to analyze the wetland type and area. Based on the data, the carbon storage was quantified by using wet combustion method and standard tree analytical method, and the distribution pattern of wetland carbon storage in Hulun Buir was studied. The results showed that total area of wetland of Hulun Buir was 734490, including swamp wetland, river wetland and lake wetland. The swamp wetland area was the biggest. The carbon storage of Hulun Buir was 260.31 million tons. That for swamp wetland area was 258.16 million tons, accounting for 99.17%, which was 98.41% and 99.10% higher than lake wetland and river wetland. The sediment, water and plant carbon storage accounted for 97.48%, 0.13%, 2.39% of the total, which showed that the sediment was the biggest carbon storage.