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Emissions of biological soil crust particulate matter and its proportion in total wind erosion
Land Degradation & Development ( IF 4.7 ) Pub Date : 2022-06-20 , DOI: 10.1002/ldr.4376 Yusong Wang 1 , Dandan Wang 2 , Xinxiao Yu 1 , Guodong Jia 1 , Xiaomin Chang 1 , Lele Sun 3 , Pengfei Zheng 1 , Yunxiao Qiu 1
Land Degradation & Development ( IF 4.7 ) Pub Date : 2022-06-20 , DOI: 10.1002/ldr.4376 Yusong Wang 1 , Dandan Wang 2 , Xinxiao Yu 1 , Guodong Jia 1 , Xiaomin Chang 1 , Lele Sun 3 , Pengfei Zheng 1 , Yunxiao Qiu 1
Affiliation
Areas subjected to frequent winds show severe farmland degradation and air pollution caused by wind erosion and particulate matter emissions. Biological soil crust (BCS) coverage can inhibit wind erosion. This study used wind tunnels to analyze the wind erosion and particulate matter emissions of algae crusts and moss crusts for different wind speeds and coverage conditions, providing the proportion of particulate matter emission of the total wind erosion under different conditions. Wind erosion of algae crusts was 33% higher than that of moss crusts, and the average emissions of total suspended particles (TSP), PM10, PM2.5, and PM1 were 51%, 64%, 149%, and 167% higher than those of moss crusts. The wind erosion process pairs of the two biological soil crusts both had strong responses to wind speed and coverage, and particulate matter emissions were particularly sensitive to coverage. The average aerodynamic roughness length of moss crusts was 164% higher than that of algae crusts; with increasing wind speed, the aerodynamic roughness length of algae crusts decreased 60% faster than that of moss crusts. The proportion of particulate matter emissions from biological soil crusts in wind erosion was inversely proportional to wind speed and coverage. The particle emission capacity of moss crusts was directly proportional to the particle size and inversely proportional to the coverage. In contrast, the particle emission capacity of algae crust particles was proportional to the particle size. This study provides information for the management of farmland wind erosion and particulate matter emission.
中文翻译:
生物土壤结皮颗粒物排放量及其在风蚀总量中的比例
多风地区由于风蚀和颗粒物排放造成严重的农田退化和空气污染。生物土壤结皮(BCS)覆盖可以抑制风蚀。本研究利用风洞分析了不同风速和覆盖条件下藻类结皮和苔藓结皮的风蚀和颗粒物排放,提供了不同条件下颗粒物排放占总风蚀的比例。藻类结皮风蚀比苔藓结皮高33%,总悬浮颗粒物(TSP)、PM10、PM2.5和PM1的平均排放量比苔藓结皮高51%、64%、149%和167%。那些苔藓结皮。两种生物土壤结皮的风蚀过程对均对风速和覆盖度有较强的响应,和颗粒物排放对覆盖率特别敏感。苔藓结皮的平均气动粗糙度比藻结皮高164%;随着风速的增加,藻类结皮的气动粗糙度长度比苔藓结皮的下降速度快60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。苔藓结皮的平均气动粗糙度比藻结皮高164%;随着风速的增加,藻类结皮的气动粗糙度长度比苔藓结皮的下降速度快60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。苔藓结皮的平均气动粗糙度比藻结皮高164%;随着风速的增加,藻类结皮的气动粗糙度长度比苔藓结皮的下降速度快60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。藻结皮的气动粗糙度长度比苔藓结皮的下降速度快 60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。藻结皮的气动粗糙度长度比苔藓结皮的下降速度快 60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。
更新日期:2022-06-20
中文翻译:
生物土壤结皮颗粒物排放量及其在风蚀总量中的比例
多风地区由于风蚀和颗粒物排放造成严重的农田退化和空气污染。生物土壤结皮(BCS)覆盖可以抑制风蚀。本研究利用风洞分析了不同风速和覆盖条件下藻类结皮和苔藓结皮的风蚀和颗粒物排放,提供了不同条件下颗粒物排放占总风蚀的比例。藻类结皮风蚀比苔藓结皮高33%,总悬浮颗粒物(TSP)、PM10、PM2.5和PM1的平均排放量比苔藓结皮高51%、64%、149%和167%。那些苔藓结皮。两种生物土壤结皮的风蚀过程对均对风速和覆盖度有较强的响应,和颗粒物排放对覆盖率特别敏感。苔藓结皮的平均气动粗糙度比藻结皮高164%;随着风速的增加,藻类结皮的气动粗糙度长度比苔藓结皮的下降速度快60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。苔藓结皮的平均气动粗糙度比藻结皮高164%;随着风速的增加,藻类结皮的气动粗糙度长度比苔藓结皮的下降速度快60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。苔藓结皮的平均气动粗糙度比藻结皮高164%;随着风速的增加,藻类结皮的气动粗糙度长度比苔藓结皮的下降速度快60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。藻结皮的气动粗糙度长度比苔藓结皮的下降速度快 60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。藻结皮的气动粗糙度长度比苔藓结皮的下降速度快 60%。风蚀中生物土壤结皮的颗粒物排放比例与风速和覆盖率成反比。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。苔藓结皮的颗粒排放能力与颗粒大小成正比,与覆盖度成反比。相反,藻壳颗粒的颗粒排放能力与颗粒大小成正比。该研究为农田风蚀和颗粒物排放的管理提供了信息。