[Objective] The paper aimed to discuss the relationship between sulfur contents of mosses and the concentration of SO2-4 and the source of Atmospheric sulfur in Nanchang.[Method] 29 moss samples （Bryohaplocladium mic...[Objective] The paper aimed to discuss the relationship between sulfur contents of mosses and the concentration of SO2-4 and the source of Atmospheric sulfur in Nanchang.[Method] 29 moss samples （Bryohaplocladium micriophyllum （Hedw.） R.Watanabe et Iwats） were collected from four sampling points,including North campus and Qianhu campus of Nanchang Power Station were determined.[Result] The results showed that sulfur contents of mosses tissues in North campus of Nanchang University （0.45±0.059%） were higher than Qianhu campus of Nanchang University （0.26±0.002%）,which coincided with the changing law of the concentration of SO2-4.Sulphur isotope of mosses tissues was-0.64‰-9.71‰.Sulphur isotope of mosses tissues in Meling （4.02‰-9.71‰） was higher than Qianhu campus of Nanchang University （0.55‰-0.56‰） and power plant （-0.64‰-0.45‰）.[Conclusion] Relationship between sulphur contents and sulphur isotopes of mosses tissues showed sulfur source of sulphur deposition in Nanchang city was mainly affected by 34S-enriched sulphur transported from northerly air masses and biogenic sulfur.展开更多
[Objective] The paper was to analyze lizi synoptic meteorology of 13 rain- storm processes during the flood season of Hunan Province in 2010. [Method] Using the principle of lizi synoptic meteorology, 13 regional rain...[Objective] The paper was to analyze lizi synoptic meteorology of 13 rain- storm processes during the flood season of Hunan Province in 2010. [Method] Using the principle of lizi synoptic meteorology, 13 regional rainstorm weather processes occurred in Hunan Province in 2010 were analyzed. [Result] Thirteen rainstorms are all closely related to self-organization convergent airflow, rainstorm is the inevitable result after the outbreak of self-organization convergent airflow. The inoculation area of self-organization convergent airflow is accorded with the occurrence area of rain- storm in the next 12-36 h; once the inoculation area of self-organization convergent airflow disappears, there will be no regional rainstorm in the next 12-36 h; the inoc- ulation area of self-organization convergent airflow is produced in the convergence domain of large scale of southern and northern lizi pair. [Conclusion] The existence of southern and northern lizi pair can be used as the short-term forecast model of regional rainstorm during flood season.展开更多
基金Supported by National Natural Science Foundation (40573006)~~
文摘[Objective] The paper aimed to discuss the relationship between sulfur contents of mosses and the concentration of SO2-4 and the source of Atmospheric sulfur in Nanchang.[Method] 29 moss samples （Bryohaplocladium micriophyllum （Hedw.） R.Watanabe et Iwats） were collected from four sampling points,including North campus and Qianhu campus of Nanchang Power Station were determined.[Result] The results showed that sulfur contents of mosses tissues in North campus of Nanchang University （0.45±0.059%） were higher than Qianhu campus of Nanchang University （0.26±0.002%）,which coincided with the changing law of the concentration of SO2-4.Sulphur isotope of mosses tissues was-0.64‰-9.71‰.Sulphur isotope of mosses tissues in Meling （4.02‰-9.71‰） was higher than Qianhu campus of Nanchang University （0.55‰-0.56‰） and power plant （-0.64‰-0.45‰）.[Conclusion] Relationship between sulphur contents and sulphur isotopes of mosses tissues showed sulfur source of sulphur deposition in Nanchang city was mainly affected by 34S-enriched sulphur transported from northerly air masses and biogenic sulfur.
文摘[Objective] The paper was to analyze lizi synoptic meteorology of 13 rain- storm processes during the flood season of Hunan Province in 2010. [Method] Using the principle of lizi synoptic meteorology, 13 regional rainstorm weather processes occurred in Hunan Province in 2010 were analyzed. [Result] Thirteen rainstorms are all closely related to self-organization convergent airflow, rainstorm is the inevitable result after the outbreak of self-organization convergent airflow. The inoculation area of self-organization convergent airflow is accorded with the occurrence area of rain- storm in the next 12-36 h; once the inoculation area of self-organization convergent airflow disappears, there will be no regional rainstorm in the next 12-36 h; the inoc- ulation area of self-organization convergent airflow is produced in the convergence domain of large scale of southern and northern lizi pair. [Conclusion] The existence of southern and northern lizi pair can be used as the short-term forecast model of regional rainstorm during flood season.
