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根据青海湖流域土壤类型图采集了49个表土样品,研究了这些样品的有机碳和黑碳的含量特征及其储量。研究得出:六类土壤的有机碳含量都比较高,说明青海湖流域土壤的储碳能力比较强;总体来说,六类土壤的黑碳含量都不高,但是焦炭的含量是相当高的,而烟炱的含量较低;焦炭和黑碳的相关性极高,说明焦炭是黑碳的主要组成部分,并且说明二者具有相同的来源;由于焦炭主要是由生物质燃烧生成的,故而这六类土壤的黑碳也多是由生物质燃烧生成的;六类土壤总面积为18416.15 km~2(占流域土壤总面积的78%),有机碳总储量为119.56×10~6t,黑碳总储量为4.36×10~6t。
49 topsoil samples were collected based on the soil type map of Qinghai Lake Basin. The contents of organic carbon and black carbon in these samples and their reserves were studied. The results showed that the organic carbon contents of the six soils were relatively high, indicating that the soil carbon sequestration in the Qinghai Lake Basin is relatively strong. Generally speaking, the six soil types have low contents of black carbon but relatively high contents of coke , While the content of soot is lower; the correlation between coke and black carbon is very high, indicating that coke is the main component of black carbon and shows that both have the same source; because coke is mainly generated by biomass burning, The six types of soils are mostly produced by biomass burning. The total area of the six types of soils is 18416.15 km ~ 2 (accounting for 78% of the total area of the watershed), and the total organic carbon reserves are 119.56 × 10 ~ 6t, black The total carbon storage is 4.36 × 10 ~ 6t.