杨梅林下不同植物配置对林分水土保持效果的影响

Effects of Different Plant Configurations in Myrica rubra Forest upon Soil and Water Conservation

为治理中轻度侵蚀的水土流失区,通过在长汀县杨梅林下套种黄栀子和百喜草,以空白样地作对比研究.结果表明:在杨梅林下栽植黄栀子和百喜草后,土壤速效养分含量明显提高,泥沙、径流流失量明显减少,土壤含水率增加.因此林下套种这两种植物能有效改良土壤及降低土壤中养分流失,以期达到为当地带来经济效益和生态效益,为林地经营管理者提供有效的决策支持,同时也期望能在条件相似的地区大面积推广应用.

To protect the land from loss of water and erosion of soil,Gardenia jasminoidesandPaspalum natatu are planted inMyrica rubraof Changting county and was observed in contrast with the bare land.It is found that the soil becomes richer in terms of nutrient content,and sediment loss,runoff loss and so on were drastically reduced and and the soil water content increases.Thus it shows such a practice effectively improves the soil and reduces the loss of soil nutrients which could bring economic and ecological benefits to the locality and it can serve as a valuable reference to the local managerial officials regions with similar soil conditions.