Biochar Yield and Physicochemical Properties of Five Halophyte Species [5种盐生植物生物炭产率及其理化性质]

作者：Mao M.-Y.; Zhao Z.-Y.; Wang S.-L.; Tian C.-Y.^*; Zhang K.; Gong J.-P.; Zhang Z.; Jing W.-M.

来源：Arid Zone Research, 2019, 36(6): 1494-1501.

DOI：10.13866/j.azr.2019.06.19

• ash
• biochar
• halophyte
• physicochemical property
• yield

The purposes of this research was to figure out the difference of biochar yield and physicochemical properties among five halophyte species, i.e. the Suaeda salsa, Salicornia europaea, Suaeda altissima, Atriplex aucheri and Halostachys caspica under 500 ℃ carbonization condition. The results showed that the biochar yield was positively correlated with the ash content of raw material, but negatively correlated with the lignin content of raw material (P<0.01). There was a significant correlation between the raw material and the biochar in ash content and total carbon content (P<0.01). In addition, the contents of elements in the raw materials determined the amount of elemental content in biochar. Noticeably, carbonization increased effectively the ash content in five halophyte species, it was increased by 132.45% in S. salsa, 91.62% in S. europaea, 121.79% in S. altissima, 169.24% in A. aucheri and 67.22% in H. caspica, respectively. Besides，the amount of sodium and potassium ions abstracted by distilled water was increased with the increase of ash content. Moreover, carbonization could effectively increase the pH (70.76%-82.33%) and EC (68.19%-144.96%) values of halophyte species. This study could be referred in researching the biochar yield and improving acidic soil by the biochar of halophytes.

• 单位
  中国科学院大学; 荒漠与绿洲生态国家重点实验室