Effect of Eucalyptus forests on understory vegetation and soil quality

Purpose Eucalyptus forest plantations are normally devoid of understory vegetation that is often assumed to be associated with Eucalyptus allelopathic effects. The objective of this study was to determine the influence of high soil compaction and low soil moisture content on inhibition of the germin...

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Bibliographic Details
Published in:Journal of soils and sediments 2017-09, Vol.17 (9), p.2383-2389
Main Authors: Yang, Xiaobo, Li, Donghai, McGrouther, Kim, Long, Wenxing, Li, Yuelie, Chen, Yukai, Lv, Xiaobo, Niazi, Nabeel Khan, Song, Zhaoliang, Wang, Hailong
Format: Article
Language:English
Subjects:
2015 International Symposium on Forest Soils
Agriculture
Climate
Compaction
Correlation
Drought
Earth and Environmental Science
Environment
Environmental Physics
Eucalyptus
Factor analysis
Forest management
Forest soils
Forests
Germination
Growth
Loosening
Moisture content
Plant populations
Plantations
Seed germination
Seeds
Soil
Soil characteristics
Soil compaction
Soil conservation
Soil moisture
Soil quality
Soil Science & Conservation
Soil treatment
Soil types
Soil water
Trees
Understory
Variance
Variance analysis
Vegetation
Water content
Water depth
Water supply
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Summary:Purpose Eucalyptus forest plantations are normally devoid of understory vegetation that is often assumed to be associated with Eucalyptus allelopathic effects. The objective of this study was to determine the influence of high soil compaction and low soil moisture content on inhibition of the germination of understory seeds in Eucalyptus forests and thus would result in the scarcity of understory vegetation. Materials and methods The soil water content above the depth of 1 m of six major understory vegetation types was analyzed to determine if there was a correlation between soil water content and understory vegetation. The effects of soil treatment (soil-loosening vs. no soil-loosening) and water supply amount (2500, 2000, 1500, 1000, 500, 250, or 0 ml of water per day) on the seed germination rate of Stylosanthes sp. were explored using an artificial climate chamber experiment. Influence of soil source (five Eucalyptus forest soils vs. two non- Eucalyptus forest soils) and water supply (0, 50, 150, 200, or 400 ml of water every day) on the germination rate of five types of seed were assessed using a three-factor analysis of variance (ANOVA). Results and discussion Soil-loosening and water supply significantly ( P  
ISSN:1439-0108
1614-7480
DOI:10.1007/s11368-016-1431-4