Effects of root exudates of woody species on the soil anti-erodibility in the rhizosphere in a karst region, China.

ABSTRACT:

Introduction

Rhizospheres, the most active interfaces between plants and soils, play a central role in the long-term maintenance of the biosphere. The anti-erodibility of soils (AES) regulated by the root exudates is crucial to the soil stability in the rhizospheres. However, scientists still debate (1) the key organic matter of the root exudates affecting the AES and (2) the interspecific variation of these root exudates.

Methods

We used an incubation of soils to test the effects of the root exudates from eight woody plant species on the change in soil aggregation and identified the organic matter in these root exudates with gas chromatography-mass spectrometry (GC-MS) and biochemical methods. Furthermore, the relationships between the organic matter in the exudates and the

SUBMITTER: Wang ZH 

PROVIDER: S-EPMC5335692 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature