本文選題：大氣濕沉降 + 營(yíng)養(yǎng)鹽�。� 參考：《中國(guó)環(huán)境科學(xué)》2017年06期

【摘要】：于2015年5月~2016年4月對(duì)湛江灣的雨水樣品進(jìn)行了收集,測(cè)定了雨水中NO_2~-、NO_3~-、PO_4~(3-)和SiO_3~(2-)的濃度,分析了它們的濃度及濕沉降通量的變化情況,并討論了濕沉降營(yíng)養(yǎng)鹽對(duì)海水生態(tài)系統(tǒng)的影響.結(jié)果表明,受厄爾尼諾影響,調(diào)查期間的年降雨量明顯高于多年平均降雨量.雨水中NO_2~-和SiO_3~(2-)的濃度在夏季和秋季較高,NO_3~-和PO_4~(3-)的濃度在春季和冬季較高,它們的濕沉降通量均在秋季最高(平均超過全年濕沉降通量的50%).降雨量、不同來源的氣團(tuán)、當(dāng)?shù)氐娜祟惢顒?dòng)情況等是影響湛江灣濕沉降營(yíng)養(yǎng)鹽濃度和通量的主要因素,秋季濕沉降通量最高與該季節(jié)有超強(qiáng)臺(tái)風(fēng)過境有關(guān).雨水每年給湛江灣帶來的NO_2~--N、NO_3~--N、PO_4~(3-)-P和SiO_3~(2-)-Si的量分別為2.04、292.4、8.13和45.8t.秋季雨水的沉降可能在短時(shí)間內(nèi)對(duì)海水中的浮游植物生長(zhǎng)有促進(jìn)作用,其他季節(jié)的促進(jìn)作用可能在短時(shí)間內(nèi)不明顯.
[Abstract]:Rain Water samples from Zhanjiang Bay were collected from May 2015 to April 2016. The concentrations of no _ 2C _ 2N _ 3P _ 4- and Sio _ S _ 3 ~ (2-) in Rain Water were determined, and the changes of their concentrations and wet deposition fluxes were analyzed. The effects of wet deposition nutrients on seawater ecosystem were also discussed. The results show that the annual rainfall during the investigation period is obviously higher than the average annual rainfall under the influence of El Nino. The concentrations of No2- and SiO- in Rain Water are higher in summer and autumn. The concentrations of NO3- and PO43- in Rain Water are higher in spring and winter, and their wet deposition fluxes are highest in autumn (average more than 50% of the annual wet deposition fluxes). Rainfall, air mass from different sources and local human activities are the main factors affecting nutrient concentration and flux of wet deposition in Zhanjiang Bay. The highest wet deposition flux in autumn is related to the transit of super typhoon in this season. Each year, Rain Water brings to Zhanjiang Bay the amount of no _ 2 ~ (2-) -P and SiO3- ~ (2-) -Si, which are 2.04292.4 ~ 8.13 and 45.8 trespectively, which are brought by Rain Water to Zhanjiang Bay, and the number of nos ~ (3-) -P and Sio ~ (2-) -Si brought to Zhanjiang Bay is 2.04292.48.13 and 45.8trespectively. The sedimentation of Rain Water in autumn may promote phytoplankton growth in seawater in a short period of time, but the promotion in other seasons may not be obvious in a short time.
【作者單位】： 廣東海洋大學(xué)海洋與氣象學(xué)院廣東省近海海洋變化與災(zāi)害預(yù)警重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(41476066,41476010) 廣東省自然科學(xué)基金資助項(xiàng)目(2016A030312004) 廣東省高等學(xué)校優(yōu)秀青年教師培養(yǎng)計(jì)劃項(xiàng)目(Yq2014004) 廣東海洋大學(xué)創(chuàng)新強(qiáng)校項(xiàng)目(GDOU2014050201);廣東海洋大學(xué)校選項(xiàng)目(1312437)
【分類號(hào)】：X51

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 周婕成;史貴濤;陳振樓;畢春娟;許世遠(yuǎn);;上海大氣氮濕沉降的污染特征[J];環(huán)境污染與防治;2009年11期

2 于志剛,張經(jīng),陳寧,張金良;黃海西部大氣濕沉降(降水)中各元素沉降通量的初步研究[J];環(huán)境化學(xué);2000年04期

3 張欣;東亞酸沉降中國(guó)網(wǎng)濕沉降分析研究[J];中國(guó)環(huán)境監(jiān)測(cè);2001年03期

4 王靜,朱利中;交通干線空氣中多環(huán)芳烴的干、濕沉降[J];中國(guó)環(huán)境科學(xué);2005年04期

5 林雨霏,劉素美,紀(jì)雷,張國(guó)森,張經(jīng);黃海西部春、夏季濕沉降常量離子化學(xué)特征研究[J];環(huán)境化學(xué);2005年05期

6 宋亮;段小平;;甘肅平?jīng)鍪写髿鉂癯两抵械⒘蛭廴疚镅h(huán)特征分析[J];內(nèi)蒙古環(huán)境科學(xué);2008年05期

7 付敏;趙衛(wèi)紅;王江濤;苗輝;;大氣濕沉降對(duì)長(zhǎng)江口水域營(yíng)養(yǎng)鹽的貢獻(xiàn)[J];環(huán)境科學(xué);2008年10期

8 張國(guó)玉;鄭祥民;周立e，

本文編號(hào)：2057849