Recently, Dr. Wu Feng, a technician at the Zhaoqing Xinghu National Wetland Park Management Center, published an article entitled "Methane and carbon dioxide emissions from cultivated and native mangrove species in Dongzhai Harbor, Hainan" in the international core journal Ecological Engineering.
Comrade Wu Feng is a doctoral student of Zhaoqing Xinghu National Wetland Park Management Center and China Academy of Forestry, he has been adhering to research work in addition to completing the unit business after obtaining his doctorate, and the above-mentioned paper is the latest result of his joint research with the Chinese Academy of Forestry. The main content of this paper is to reveal the soil CH4 and CO2 emission patterns under four different treatments of three native mangrove plants and artificially introduced species of sea mulberry community under four different treatments. The results show that the soil CO2 emission rate of mangrove plants in spring and summer is significantly higher than that in autumn and winter. Different types of aerograss in mangrove plants play different roles on soil CH4 and CO2 emission rates, among which aerogenic rooting in the olera and ashwagandha communities significantly reduced the CH4 emission rate (P < 0.05), but aerogenic rooting in the Silipus silipus and no-petal hypnosa community had no significant effect on the CH4 emission rate. Aerograss rooting in the petalless Hypnopsis community significantly reduced the CO2 emission rate (P < 0.05), but aerogenic rooting in the other three communities did not have a significant effect on the CO2 emission rate. Litter has a significant effect on CH4 emissions in mangrove soils, but not on CO2.
The CH4 emission rate of natural forests does not differ significantly from plantations, which is 1.21 times that of light beaches. The soil CO2 emission rate of plant communities in plantations was 2.36 times that of natural forests and 20.22 times that of light beaches. Soil moisture content promotes soil CH4 emissions within a certain range. Temperature and other factors together affect the rate of soil CO2 emission in plant communities.
△CH4 fluxes from mangrove soils with four different treatments.
Notes: A, pneumatophore and litter removal; B, pneumatophore removal and litter retention; C, pneumatophore retention and litter removal; D, pneumatophore and litter retention.
△CH4 fluxes of four mangrove communities under different treatments.
*, P< 0.05; **,P< 0.01; ***,P< 0.001.
Hosted by the Dutch JOURNAL ELSEVIER, the journal ecological engineering is ranked 39th out of 166 international ecological journals with an impact factor of 4.035 and belongs to the second region journal of the Chinese Academy of Sciences.
Original link: https://www.sciencedirect.com/science/article/abs/pii/S0925857421001403?via%3Dihub
DOI:10.1016/j.ecoleng.2021.106285
◆ Editor: Mak Kin Chung
◆ Second instance: Liu Yinghua
◆ Third trial: Mo Ruoqi
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