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[1]HU Zong-da,YE Chong,HU Ting-xing.Growth Status of Hemarthria compressa and Its Influence on Soil Nutrients[J].Research of Soil and Water Conservation,2008,15(02):120-123.

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Growth Status of Hemarthria compressa and Its Influence on Soil Nutrients

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 15 Number of periods: 2008 02 Page number: 120-123 Column: Public date: 2008-04-20

Title:: Growth Status of Hemarthria compressa and Its Influence on Soil Nutrients

Author(s):: HU Zong-da¹, YE Chong², HU Ting-xing³; 1. College of Resources & Environment, Sichuan Agricultural University, Ya’an, Sichuan 625014, China;
2. Library of Sichuun Agricultural University, Ya’an, Sichuan 625014, China;
3. Forestry and Horticulture College, Sichuan Agricultural University, Ya’an, Sichuan 625014, China

Keywords:: Hemarthria compressa; growth status; soil pH value; soil nutrients

CLC:: S154.4;S153.6

DOI:: -

Abstract:: A research into growth status of Hemarthria compressa and its influence on soil nutrients was performed through the measured data of biomass,growth factors,soil pH value,soil organic matter,total N,P,K,hydrolysable N,available P and K without fertilizing the experimental fields in Sichuan Agricultural University from 2004 to 2005.The results indicated that the biomass reduced greatly(50.41% per year) with the pass of time and the growth of height and diameter decreased in a certain degree whereas the plant density increased by 13.74% per year and that the soil pH value lowered slightly and soil organic matter,dissolved N,available P and K decreased in various degrees.Among them,hydrolysable N,available P and K decreased 26.73%,23.71% and 7.31% respectively each year,but the bottom layer of soil was not obviously affected by them.The ability of soil fertility supplying declined,which affected productivity of Hemarthria compressa growth directly.

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