【摘 要】
：
The flux of nitrogen from pollution associated with anthropogenic activities along the Eastern Seaboard of Thailand is investigated and the resultant flux o
【机 构】
：
Research scientist,Pollution Control Department Ministry of Natural Resources and Environment 92 Pah
论文部分内容阅读
The flux of nitrogen from pollution associated with anthropogenic activities along the Eastern Seaboard of Thailand is investigated and the resultant flux of nitrate to the adjacent oceans is assessed.Two industrial estates,Maptaphut and Laem Chabang,are found to be the key sources of nitrate (derived from oxides of nitrogen,NOx),which are emitted from fuel gas burning.Road traffic along the seashore also significantly contributes to the NOx budget.The total nitrogen input is estimated to be as high as 40,000 tons per year.The transport due to recirculation (sea breeze) was found to be as far as 70 km off-shore during winter season,when northeasterly winds dominate.This is shown by simulation during the winter of 2002 - 2003 using a Lagrangian dispersion model CALPUFF (CALifornia PUFF model - US EPA regulatory model),driven by the meteorological database produced by MM5 (PennState Universitys Mesoscale Meteorological Model version 5) and nudged by observation from 12 surface stations and 1 RADAR/RASS for upper air profiles.The deposition rate of HNO3 in the adjacent coastal regions is calculated.The level of nitrogen input to the surface ocean was found supporting phytoplankton blooms and the budget of N:P ratio is estimated along the eastern coast of Thailand.The increasing anthropogenic nitrate inputs to the marine ecosystem are showing impact on fisheries in the region.
其他文献
早酥梨是一个早熟、优质梨树品种。早酥生长特点是萌芽力很高,成枝力很低,短截后,只发出2个长枝和少数中枝,其余均为短枝。因而前期树冠稀疏、松散,枝量很少。另外,早酥梨干
1、腐烂病的防治一改重刮为重防，为了获得理想的防治效果，必须改变传统的只注重在发展期刮治的作法为重视在初侵期前（6月下旬至7月中旬）对主干和大枝基部涂一次40％福美砷50倍液和
We examined the effects of different forms of nitrogen and iron on the structure and function of natural Yellow Sea phytoplankton communities incubated in 8
目的:分析淋巴增强因子1(lymphoid enhancer factor-1，LEF-1)与P53蛋白在肝门部胆管癌组织中的表达及临床意义。方法:回顾性分析2010年3月至2017年12月唐山市人民医院就诊的50
2007年，诸文静被长沙民间环保组织授予湖南省环保五星人士。她博客的名字叫做杞人的心声，她说，其实很多时候想想，那个杞人的想法与我的想法不谋而合。 理想其实就是在某一时刻你想法的无限扩大 诸文静是地地道道的湖南妹子，1980年出生在株洲一个普通的家庭。父母都是当地工厂的工人。小学，初中，她学习努力，但始终成绩平平，不上不下。属于那种淹在人堆里就找不到的学生。 高中的时候，由于父亲的工
The seasonal cycling of the climatically-active sulfur gas dimethylsulfide (DMS),its precursor dimethylsulfoniopropionate (DMSP) as well as dimethylsulfoxid
在大多数国家首选的避孕方法是口服避孕药。目前采用这种方法的约有550万妇女。口服避孕药除有避孕作用外,尚有很多未被人们所知的优异作用。今叙述如下: 一、使月经正常化:
Marine phytoplankton is the basis of ocean ecosystem.It can absorb carbon dioxide and release DMS,both of which can bring up negative feedbacks to climate f
The Canadian SOLAS (Surface Ocean Lower Atmosphere Study) research network is the Canadian contribution to the International Geosphere Biosphere program’s
High phytoplankton biomass and ocean primary productivity (OPP) often occurs near river mouths or in eutrophic coastal waters for short time periods.Tang et