|Table of Contents|

Short Term Effect of Different Restoration Strategies Used Tree Branches on Microbial and Physicochemical Properties of Desertified Grassland Soil in Ningxia,China(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年21期
Page:
168-173
Research Field:
Publishing date:

Info

Title:
Short Term Effect of Different Restoration Strategies Used Tree Branches on Microbial and Physicochemical Properties of Desertified Grassland Soil in Ningxia,China
Author(s):
LI Jin-lin 1; 2; LI Jian2; LI Zhi-gang 2; 3
1.College of Life Sciences,Ningxia University,Yinchuan,Ningxia 750021;
2.State Key Laboratory of Seedling Bioengineering,Ningxia Forestry Institute,Yinchuan,Ningxia 750021;
3.College of Agriculture,Ningxia University,Yinchuan,Ningxia 750021
Keywords:
tree branches; restoration strategies; desert grassland; soil; microbial properties; physicochemical properties; Ningxia
PACS:
S 156.5
DOI:
-
Abstract:
Taking different tree branches as materials,short term effect of different restoration strategies,20 cm depth soil added 2 cm length poplar branches chips without leaves (A),added poplar chips plus 40 cm depth willow branches blanket without leaves covered on soil surface (AB),3 cm depth mixed chips mulched on soil surface (M) and control (CK),on microbial and physicochemical properties of decertifies grassland in Ningxia were studied.The results showed that all of three restoration strategies used tree branches increased microbial population,microbial carbon,microbial nitrogen and enzyme activity in soil,and also increased organic carbon,total nitrogen,soil water and water stable aggregate,and decreased pH value in soil.In a word,the effect between strategies were AB>A>M>CK.Furthermore,there were significant (P<0.05) or extreme significant (P<0.01) correlation between soil microbial properties and soil physicochemical properties,and they were linear correlation (P<0.05) at same time.It’s concluded that,firstly,tree branches supplied energy for microbes and improved environment condition for microbes;then tree branches decomposition and transformation were promoted,nutrients content in soil increased,and soil structure also be improved.So,these strategies could be considered in grassland restoration in future.

References:

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Last Update: 2014-12-01