Evaluation of soil quality along two revegetation chronosequences on the Loess Hilly Region of China

The Science of the Total Environment
Shujuan GuoGaihe Yang

Abstract

Vegetation restoration has been widely implemented to control soil degradation, reduce soil erosion, and improve soil quality. It is vital to understand the mechanisms affecting soil quality in soil restoration processes and to determine an appropriate recover pattern for soil restoration. Thus, a soil quality index was developed using integrated approach to assess soil quality after vegetation restoration in this study. Soil samples were collected from two restoration pathways (afforestation by Robinia pseudoacacia L. and natural recovery of abandoned farmland) with ages sequence of 0, 17,27 and 42years old at two soil depths (0-10 and 10-20cm) to measure soil physicochemical and biological properties on the Loess Hilly Region of China, China. The results showed that soil quality index (SQI) was developed based on microbial biomass carbon (MBC), fine particles (FP), and total phosphorus (TP). The MBC, which had the fastest increase rate than TP and FP, had the highest contribution to the final SQI and these contributions increased with recovery age. The MBC values were higher in Robinia pseudoacacia L. than in abandoned land sites at all recovery ages with greater increases along with restoration age. The SQI values significan...Continue Reading

Citations

Dec 14, 2019·The Science of the Total Environment·Carmen SeguraEmilia Fernández-Ondoño
Feb 26, 2021·The Science of the Total Environment·Yaohua ZhangWei Luo
Jun 18, 2021·The Science of the Total Environment·Hengshuo ZhangJesús Rodrigo-Comino

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