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[1]FENG Zhong-jiang,ZHAO Xin-sheng.The Environmental Interpretation for the Space Change of the Reed Biomass in the Yellow River Delta[J].Research of Soil and Water Conservation,2008,15(03):170-174.

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The Environmental Interpretation for the Space Change of the Reed Biomass in the Yellow River Delta

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 15 Number of periods: 2008 03 Page number: 170-174 Column: Public date: 2008-06-20

Title:: The Environmental Interpretation for the Space Change of the Reed Biomass in the Yellow River Delta

Author(s):: FENG Zhong-jiang¹, ZHAO Xin-sheng²; 1. College of Resource and Environmental Science, Hebei Normal University, Shijiazhuang 050016, China;
2. State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China

Keywords:: reed; biomass; water depth; salinity; Yellow River Delta

CLC:: F323.2;Q142

DOI:: -

Abstract:: Basing on the field investigation of the biomass of the reed (Phragmites australis) in the Yellow River Delta,we studied the effect of the water body of the coastal wetland and the physical and chemical properties of the soil on the biomass of the reed.The results show that:(1)Affected by the environmental factors,the biomass of the reed is lower ranging from 56.04 to 1 668.45 g/m²;the ratio of the belowground biomass to aboveground biomass is from 1.25 to 2.37;(2)Among various factors affecting the reed biomass,the salinity is the dominant restrictive factor with the increase of which the biomass decrease;(3)The water depth is the most important promotive factor,and with the rise of the water depth,the aboveground biomass increase while the ratio of the belowground to the aboveground biomass decrease.The main reason behind this result is that the water depth changes the morphology characters of the reed plants,such as the plant height and the diameter at breast height,and the structure characters (density);(4)The nutrient substance content in the water body at the state of closed semi-flow is high,and the nitrogen content is productive to the growth of the reed.

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