%0 Journal Article
%T Distribution characteristics of SOM and nitrogen on the eastern slope of Gongga Mountain<br>
%A WANG Lin
%A OUYANG Hua
%A PENG Kui
%A TIAN Yuqiang
%A ZHANG Feng
%A <br>
%J 地理学报
%D 2004
%I 
%X The distribution of soil organic matter (SOM) and nitrogen on Gongga Mountain was studied in this paper. The results showed that the content of SOM and nitrogen (N) of A horizon had an ascending trend with the increase of the elevation. The vegetation types distributed higher than the mixed broad-leaved and coniferous forest have the irregular trends. In the transitional zone vegetation such as mixed trees and treeline, the content of SOM and N is higher than other vegetation types. The distribution of SOM and N of A horizon is dependent on the synthetic effect of climate and vegetation types. The vertical distribution of SOM and N in soil profiles has the similar trends for all kinds of vegetation types, i.e., the content of A horizon is higher than that of the B and C horizons, which is the same to the distribution of dead animal and plant in soil. The soil C:N is between 7 and 25, which is relatively low comparing to the appropriate C:N of 25-30. The ratio of soil carbon to nitrogen (C:N) increases with the increase of the elevation, but its vertical distribution in soil horizons varies with different vegetation types. The N exists in SOM mainly in the form of organic nitrogen, and the soil C:N correlates significantly with SOM.
%K Gongga Mountain
%K vertical gradient
%K soil organic matter
%K nitrogen<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=F7B5B947C24B9D649491012214E4BEF4&aid=DD1A14C6CE98C0CBDACAC05B1C7026C5&yid=D0E58B75BFD8E51C&vid=F3583C8E78166B9E&iid=E158A972A605785F&sid=283B38DAD0D068F3&eid=036D726259190A01&journal_id=0375-5444&journal_name=地理学报&referenced_num=0&reference_num=0