中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Measurement report: New particle formation characteristics at an urban and a mountain station in northern China

文献类型:期刊论文

作者Zhou, Ying; Hakala, Simo; Yan, Chao; Gao, Yang; Yao, Xiaohong; Chu, Biwu; Chan, Tommy; Kangasluoma, Juha; Gani, Shahzad; Kontkanen, Jenni
刊名ATMOSPHERIC CHEMISTRY AND PHYSICS
出版日期2021-10-07
卷号18期号:21页码:-
关键词rainfall erosivity soil erosion spatiotemporal variation ENSO Tibetan Plateau
英文摘要Soil erosion is a serious ecological problem in the fragile ecological environment of the Tibetan Plateau (TP). Rainfall erosivity is one of the most important factors controlling soil erosion and is associated with the El Nino southern oscillation (ENSO). However, there is a lack of studies related to the spatial distribution and temporal trends of rainfall erosivity on the TP as a whole. Additionally, the understanding of the general influence of ENSO on rainfall erosivity across the TP remains to be developed. In this study, long-term (1971-2020) daily precipitation data from 91 meteorological stations were selected to calculate rainfall erosivity. The analysis combines co-kriging interpolation, Sen's slope estimator, and the Mann-Kendall trend test to investigate the spatiotemporal patten of rainfall erosivity across the TP. The Oceanic Nino Index (ONI) and multivariate ENSO Index (MEI) were chosen as ENSO phenomenon characterization indices, and the relationship between ENSO and rainfall erosivity was explored by employing a continuous wavelet transform. The results showed that an increasing trend in annual rainfall erosivity was detected on the TP from 1971 to 2020. The seasonal and monthly rainfall erosivity was highly uneven, with the summer erosivity accounting for 60.36%. The heterogeneous spatial distribution of rainfall erosivity was observed with an increasing trend from southeast to northwest. At the regional level, rainfall erosivity in the southeastern TP was mainly featured by a slow increase, while in the northwest was more destabilizing and mostly showed no significant trend. The rainfall erosivity on the whole TP was relatively high during non-ENSO periods and relatively low during El Nino/La Nina periods. It is worth noting that rainfall erosivity in the northwest TP appears to be more serious during the La Nina event. Furthermore, there were obvious resonance cycles between the rainfall erosivity and ENSO in different regions of the plateau, but the cycles had pronounced discrepancies in the occurrence time, direction of action and intensity. These findings contribute to providing references for soil erosion control on the TP and the formulation of future soil conservation strategies.
源URL[https://ir.rcees.ac.cn/handle/311016/46874]  
专题生态环境研究中心_水污染控制实验室
作者单位1.[Dada, Lubna
2.Ocean Univ China, Key Lab Marine Environm & Ecol, Minist Educ, Qingdao 266100, Peoples R China
3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China
4.Nanjing Univ, Joint Int Res Lab Atmospher & Earth Syst Sci JirL, Nanjing, Peoples R China
5.Ecole Polytech Fed Lausanne EPFL Valais Wallis, Extreme Environm Res Lab, CH-1951 Sion, Switzerland
6.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland
7.Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Aerosol & Haze Lab, Beijing, Peoples R China
8.Univ Helsinki, Inst Atmospher & Earth Syst Res Phys, Fac Sci, Helsinki, Finland
推荐引用方式
GB/T 7714
Zhou, Ying,Hakala, Simo,Yan, Chao,et al. Measurement report: New particle formation characteristics at an urban and a mountain station in northern China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2021,18(21):-.
APA Zhou, Ying.,Hakala, Simo.,Yan, Chao.,Gao, Yang.,Yao, Xiaohong.,...&Dada, Lubna.(2021).Measurement report: New particle formation characteristics at an urban and a mountain station in northern China.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(21),-.
MLA Zhou, Ying,et al."Measurement report: New particle formation characteristics at an urban and a mountain station in northern China".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.21(2021):-.

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来源:生态环境研究中心

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