Phenological characteristics of net ecosystem carbon exchange of steppe in Inner Mongolia, China and its remote sensing monitoring.

To accurately monitor the phenology of net ecosystem carbon exchange (NEE) in grasslands with remote sensing, we analyzed the variations in NEE and its phenology in the steppe and discussed the remote sensing vegetation index thresholds for NEE phenology, with the observational data from the Inner Mongolia Xilinhot National Climate Observatory's eddy covariance system and meteorological gradient observation system during 2018-2021, as well as Sentinel-2 satellite data from January 1, 2018 to December 31, 2021. Results showed that, from 2018 to 2021, NEE exhibited seasonal variations, with carbon sequestration occurring from April to October and carbon emission in other months, resulting in an overall carbon sink. The average Julian days for the start date (SCUP) and the end date (ECUP) of carbon uptake period were the 95 and 259 days, respectively, with an average carbon uptake period lasting 165 days.

[Impact of deep slow-wave sleep deprivation on oxidative stress response of the testis tissue in rats].

Objective: To investigate the influence of deep slow-wave sleep deprivation on the oxidative stress of testicular tissue in rats.

Methods: Thirty-six 5-week-old male Wistar rats were equally randomized into deep slow-wave sleep deprivation group (SD1), deep slow-wave sleep and duration sleep deprivation group ( SD2), and a cage control group (CC). The rat model of deep slow-wave sleep deprivation was established using the flowerpot technique.

[Aerodynamic parameters and their affecting factors over Panjin reed wetland].

Based on the observation data from eddy covariance tower and meteorological gradient tower in Panjin reed wetland observation plot, and by the method combined eddy covariance with microclimate gradient observation, two fundamental aerodynamic parameters, i. e., zero-plane displacement (d) and roughness length (z0), were evaluated, with their affecting factors analyzed.