کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6339754 | 1620374 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Half-century nitrogen deposition increase across China: A gridded time-series data set for regional environmental assessments
ترجمه فارسی عنوان
رسوب نیتروژن نیمی از قرن در سراسر چین افزایش می یابد: داده های جدول زمانی جدول برای ارزیابی محیط زیست منطقه ای
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کلمات کلیدی
رسوب نیتروژن، چین، روند افزایش توزیع فضایی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
چکیده انگلیسی
A wide variety of studies have revealed a substantial increase in nitrogen (N) deposition in China, but the lack of spatially-explicit time-series N deposition data set has long hindered us from assessing the impacts of atmospheric N input on ecosystem services. In this study, we combined site-level monitoring, gridded precipitation data and atmospheric transport modeling results to generate annual N bulk deposition data in China with a spatial resolution of 10 km Ã 10 km and a time span from 1961 to 2008. It shows that national average N deposition rate had large interannual variation, and it increased by 59%, from 12.64 kg N haâ1 yrâ1 in the 1960s to 20.07 kg N haâ1 yrâ1 in the recent decade, with the most rapid increase centered in the southeastern China that is already N-enriched. Large spatial variation as well as dry deposition input has to be taken into account when estimating the amount of N deposited onto land surface of China. The spatial and temporal information on N deposition derived from this study could be used by ecosystem, hydrological, and climate modeling as well as by policy makers for assessing the impacts of nitrogen enrichment on regional climate, water resources, and biogeochemical cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Environment - Volume 97, November 2014, Pages 68-74
Journal: Atmospheric Environment - Volume 97, November 2014, Pages 68-74
نویسندگان
Chaoqun Lu, Hanqin Tian,