|Table of Contents|

Phytocoenose and Soil Nutrient Around Coal-Fired Power Plant in  Mountainous Area(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年06
Page:
164-171
Research Field:
Publishing date:

Info

Title:
Phytocoenose and Soil Nutrient Around Coal-Fired Power Plant in  Mountainous Area
Author(s):
HUANG Xianfei1ZHANG Ximin2AO Guofu3QIN Fanxin1ZHANG Zhenming4
(1.Guizhou Provincial Key Laboratory of Information System of Mountainous Areas and Protection of Ecological Environment,Guizhou Normal University,Guiyang,Guizhou 550001;2.College of Life Sciences,Guizhou Normal University,Guiyang,Guizhou 550001;3.College of Agriculture,Anshun University,Guiyang,Guizhou 561000;4.Guizhou Institute of Biology,Guiyang,Guizhou 550009)
Keywords:
coal-fired powerplant community structureecologysoil nutrients
PACS:
-
DOI:
10.11937/bfyy.201706039
Abstract:
The effect of coal-fired plant on organic matter,nitrogen and phosphorus in forest soils in mountainous areas,plant community structure in seven forestry survey plots around the Jinsha coal-fired plant were investigated.Organic carbon,total nitrogen,alkali-hydrolyzable nitrogen and total phosphorus in surface soil samples collected at centre,edge and outside of forest alnds were analyzed as well.The results showed that the dominant tree species in study region were Pinus massoniana,Platycladus orientalis,Cryptomeria fortunei,Cedrus deodara,and Cyclobalanopsis glauca.Primary shrubby species were Rubus corchorifolius,Viburnum Linn., Zanthoxylum simulans,Millettia nitida,and Pyracantha fortuneana.Herbaceous plants were Nephrolepis cordifolia,Imperata cylindrica and Acroptilon repens.The soil fertility level was higher in the surrounding forest soils of power plant.The level of soil total nitrogen,soil phosphorus and organic matter met the grade I level,and the main limiting factor of soil nutrients was total phosphorus.Different correlations were observed among soil carbon,nitrogen,phosphorus and their stoichiometric characteristics,and there was an opposite relationship between the total nitrogen and total phosphorus.Soil total nitrogen,alkali-hydrolyzable nitrogen and organic matter contents were mainly influenced by slope gradient,soil texture,plant community structure and exogenous input.

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Last Update: 2017-04-05