%0 Journal Article
%T The influence after introduction of Spartina alterniflora on the distribution of TOC, TN and TP in the national Yancheng rare birds nature reserve, Jiangsu Province, China<br>互花米草引种对苏北潮滩湿地TOC、TN和TP分布的影响
%A GAO Jian-hua
%A YANG Gui-shan
%A OU Wei-xin
%A <br>高建华
%A 杨桂山
%A 欧维新
%J 地理研究
%D 2007
%I 
%X The influence,after introduction of Spartina alterniflora,on the distribution of TOC,TN and TP in tidal salt marshes in north Jiangsu Province,is analyzed.The result indicates that,the unit area accumulation of TOC,TN and TP within the depths of 0~20cm,as well as average horizontal and vertical contents of TOC and TN,in Spartina alterniflora marshes,are higher than those in other ecological zones,and decrease from Spartina alterniflora marshes to Artemisia schrenkiana marshes,Phragmiues auszradis marshes and silty marshes.While the highest average horizontal and vertical content of TP occurs in silty marshes,and the average content increases from land to sea. In autumn,the unit area accumulation content of TOC of Spartina alterniflora is 14.1 and 1.9 times that of Artemisia schrenkiana and Phragmiues auszradis,respectively.Similarly,the unit area accumulation content of TN of Spartina alterniflora is 32 and 1.6 times that of Artemisia schrenkiana and Phragmiues auszradis.The unit area accumulation of TP of Spartina alterniflora is also larger than that of Artemisia schrenkiana and Phragmiues auszradis,its content is respectively 56 and 3.9 times that of Artemisia schrenkiana and Phragmiues auszradis. The influences,after introduction of Spartina alterniflora,on the distribution of TOC,TN and TP in tidal salt marshes are:(1) The accumulating rate of Spartina alterniflora is high,which benefits the preservation of nutrient matter,and the increase of accumulation contents of TOC,TN and TP in the whole tidal salt marshes;(2) changes of plants distribution pattern in tidal salt marshes induced by Spartina alterniflora,accordingly heighten the accumulations of TOC,TN and TP in the whole ecosystem;(3)the high production and enormous belowground biomass of Spartina alterniflora,influence not only TOC,TN and TP cycling in the inner ecosystem,and the exchange between the adjoining ecosystem,but also accumulations of such three matters in the whole tidal salt marshes;and(4)Spartina alterniflora demands abundant P during growing process because of its vegetative characteristics,and the content of TP in sediment of Spartina alterniflora marshes is continuously decreased during its movement from land to sea.Therefore,the content of TP in silty marshes is higher than that in other ecological zones.
%K Spartina alterniflora
%K total organic carbon
%K total nitrogen
%K total phosphorus
%K accumulation
%K ecological zone
%K tidal salt marshes
%K Jiangsu Province<br>互花米草
%K 有机碳
%K 总氮
%K 总磷
%K 累积
%K 潮滩湿地
%K 江苏
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=C0C75E88BA2EE501C8298896F64A711F&aid=0C3CBAF82875C816&yid=A732AF04DDA03BB3&vid=96C778EE049EE47D&iid=E158A972A605785F&sid=5EEA08EFB4616D1C&eid=15890B67B1F0B7E7&journal_id=1000-0585&journal_name=地理研究&referenced_num=0&reference_num=27