From the point view of retarding runoff

slowing down slope

improving soil physicochemical properties

increasing soil enzyme and microbial activities

biodiversity conservation

etc

this paper summarized the research progress in the mechanisms of soil erosion control of hedgerows. Soil and water conservation benefits and influences of farmland slope and balanced fertilization on different hedgerows in the hilly region of Southwest China were explored. In this region

researches mainly tended to be focused on herbs like Vetiveria zizanioides and Hemerocallis citrina and trees like Leucaena leucocephala

of which Hemerocallis citrina was usually occurred with fruit trees. Finally

soil biological characteristics and distance of hedgerows were put forward

which could give a reference for further research

and provide the theoretical bases for the improvement of the efficiency of fertilizer.