5 | CONCLUSIONS
When S. miltiorrhiza is subjected to different abiotic stress
conditions, changes occur in the soil enzyme activity that is secreted
by its root system, altering the soil nitrogen cycle, phosphorus
transport and utilization, and the antioxidant capacity of the
rhizosphere. Plants obtain nutrients and reduce oxidative damage to
roots by altering the levels of soil enzymes secreted by roots.
Unfavorable environments can directly affect plant growth and
development, affecting the amount of organic matter that plants put into
the soil, thereby affecting soil carbon storage.