This paper analyzed the difference of soil nutrient and the dynamics of available nutrient in soil solution of the forest and grass composite pattern and the farmlands on site.The result showed that the content of soi...This paper analyzed the difference of soil nutrient and the dynamics of available nutrient in soil solution of the forest and grass composite pattern and the farmlands on site.The result showed that the content of soil total N,hydrolysable N,organic matter in forest and grass composite pattern was higher than in farmland.The content of total P,available P,total K and slowly K was lower than that in farmland.The seasonal change of NH-4+-N,NO-3--N,PO-4 3-and K+ was influenced by the growing of plant,precipitation and temperature.展开更多
文摘This paper analyzed the difference of soil nutrient and the dynamics of available nutrient in soil solution of the forest and grass composite pattern and the farmlands on site.The result showed that the content of soil total N,hydrolysable N,organic matter in forest and grass composite pattern was higher than in farmland.The content of total P,available P,total K and slowly K was lower than that in farmland.The seasonal change of NH-4+-N,NO-3--N,PO-4 3-and K+ was influenced by the growing of plant,precipitation and temperature.
