%0 Journal Article
%T Study on Nutrient and Salinity in Soil Covered with Different Vegetations in Shuangtaizi Estuarine Wetlands<br>双台子河口湿地不同植物群落土壤营养元素及含盐量研究
%A 宋晓林
%A 吕宪国
%A 张仲胜
%A 陈志科
%A 刘正茂
%J 环境科学
%D 2011
%I 
%X Nutrient elements and salinity in soil covered by different vegetations including Phragmites australis (Clav.) Trin., Typha orientalis Presl., Puccinellia distans Parl, and Suaeda salsa in Shuangtaizi estuarine wetlands were investigated to study their distribution characteristics and to reveal the nutrient element variation during the vegetation succession processes. Results indicated that total potassium, total phosphorus and salinity were different significantly in soil between different plant communities while available phosphorus, total nitrogen, available nitrogen, available potassium, total sulfur, iron and soil organic carbon were different insignificantly. Correlation analysis suggested that soil organic carbon were related significantly to total nitrogen, available phosphorus, available potassium, which implied that decomposition of plant litter might be the mail source of soil nitrogen and available nutrient. Salinity was significantly related to total phosphorus and iron in soil. In Shuangtaizi estuarine wetland soil, ratios of carbon to nitrogen (RC/N) was in the range of 12.21-26.33 and the average value was 18.21, which was higher than 12.0. It indicated that soil organic carbon in Shuangtaizi estuarine mainly came from land but not ocean and plants contributed the most of soil organic matters. There was no significant difference in RC/N between soil from the four plant communities (F=1.890, p=0.151). RC/N was related significantly to sol salinity (r=0.3463, p=0.0358) and was increasing with soil salinity.
%K estuarine wetlands
%K vegetation communities
%K soil nutrient
%K salinity
%K carbon and nitrogen ratio<br>河口湿地
%K 植物群落
%K 营养元素
%K 含盐量
%K 碳氮比
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=D1920AB56F28E37CE8BD11F10B471EA5&yid=9377ED8094509821&vid=9971A5E270697F23&iid=9CF7A0430CBB2DFD&sid=810992CA887D23CC&eid=5A7B96AC4DD97E09&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=0