New progress has been made in the study of the response to climate change by the pore characteristics of plant leaves where water is protected.

After many years of research, zhou Ping research team, the official of the Institute of Soil and Water Protection, has made new progress in the study of the pore characteristics of plant leaves and the regulatory role in the global carbon-water cycle.
research has been published in the environmental science and ecology TOP journal Global Change Biology.
Plant pores account for only 5% of the total area of leaves, but the water lost through the pores is up to about 70% of the total water loss of plants, and through its photo-cooperative fixed carbon accounts for one-seventh of the total atmospheric carbon, playing an important regulatory role in the global carbon water cycle.
the pore characteristic parameters of plant leaves are significantly related to atmospheric CO2 concentrations and play an important role in the remodeling of historical CO2 concentrations.
based on data on the response of more than 1,800 groups of plant pore characteristic parameters to changes in environmental factors in more than 900 plant species worldwide, this study carefully identifies the degree to which environmental factors affect changes in pore characteristic parameters.
study found that the change strategy of plant pore characteristic parameters is jointly regulated by the plant itself and environmental factors, the increase of atmospheric CO2 concentration leads to a decrease in the density of the blade pores, while the increase in temperature and drought leads to an increase in the density of pores, in addition, the density of pores is also affected by atmospheric nitrogen semodation, plant species and test conditions. Regulation, these differential responses present great challenges to the prediction of the global carbon water cycle under future climate change, and the study also found that there are certain threshold effects on the response of pore density to CO2 and temperature, and that the dominant factor in future changes in the global carbon water cycle is changing from co2 concentrations to warming.
addition, pore density and pore indices are significantly associated with CO2 concentrations, but pore indices are more reliable than pore densities in historical CO2 remodeling.
that the impact of CO2 concentrations on the global carbon-water cycle is diminishing.
the response of plant leaf pore characteristics to environmental factors is of great theoretical significance in reshaping historical CO2 concentrations and predicting the global carbon water cycle under future climate change.
also provides a new regulatory approach to environmental response strategies under warming conditions.
Source: Science and Technology Office.