|Table of Contents|

Characteristic of Total Phosphorus Distribution in Typical Vegetation Zones Along Hailuogou of Gongga Mountain(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2012年第03期
Page:
70-74
Research Field:
水资源与环境
Publishing date:

Info

Title:
Characteristic of Total Phosphorus Distribution in Typical Vegetation Zones Along Hailuogou of Gongga Mountain
Author(s):
WU Yan-hong1; 2;  ZHOU Jun1; 2;  BING Hai-jian1; 2;  YU Dong1; 2;  SUN Shou-qin1; 2;  LUO Ji1; 2
1. Chengdu Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China; 2. Key Laboratory of Mountain Surface Processes and Ecological Regulation, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
Keywords:
phosphorus;  soil;  rhizosphere;  vegetation zone;  vertical zonality;  biogeochemistry;  Hailuogou;  Gongga Mountain
PACS:
P593; P595
DOI:
-
Abstract:
Phosphorus is an essential nutrient for mountain ecosystem development and security because of the special biogeochemical cycle. In order to understand the biogeochemical cycle of phosphorus in Gongga Mountain, the distributions of total phosphorus in soil from typical vegetation zone, rhizospheric soil and different parts of plants at growing season(September)and non-growing season or the beginning of growing season(May)were investigated. The results showed that the difference of distribution of total phosphorus in vertical gradient and that in different soil horizons from the same soil profile were significant, and the seasonal difference was remarkable; the above differences were related with the degree of soil development, temperature change and plant growing; the difference of total phosphorus in different rhizospheric soils at non-growing season or the beginning of growing season was large, but the difference at growing season was close, so that the plant had significant impact on the biogeochemical cycle of phosphorus in mountain; phosphorus in leaf was more than that in young shoot for rhododendron, populus purdomii and willow, while phosphorus in young shoot was a little more than that in leaf for abies fabric, picea brachytyla and bamboo.

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Last Update: 2012-09-20