The results also indicated that N 2O emission flux of the forest soil was positively correlated to soil temperatures at 0 cm and 5 cm depth,while N 2O emission flux of the litter-free soil only had relation with the soil temperature at 5 cm depth.
Using the medium of 80 % forest soil + 20 % burnt soil and 20 % compound fertilizer as the cultivation medium,container of 15 cm×19 cm,biogas waste fertilizer as top dressing could achieved good effect.
In view of the several main problems existing in the utilization of forestsoil in the area of East Fujian at present, some ideas and proposals of the forest soil im-provement and utilization for a period in future have been offered in this paper by ap-plying relevant data from the general soil survey and secondary resource inventory.
In general, the maximum average contents of heavy metal except for Pb were found in vegetable soil type, the medium ones were found in urban soil type and rural soil type, and the minimum ones were in forest soil type.
(3) Proteinase, catalase, and urease in the forest soil to a depth of 40 cm were usually higher than those in the control plot and decreased with soil depth.
It has been proposed that the model can be used for the analysis of the relationship between the fractal dimensions and the properties of forest soil.
Changes in the Structure and Properties of Alkali-Soluble Humic Substances in Phosphorus-Enriched Gray Forest Soil
The dynamics of spectral and kinetic properties of alkali-soluble humic substances in the gray forest soil were studied in the course of its incubation with NH4H2PO4 (44.5 mg P per 100 g soil) for seven days, one year, and three years.
Changes in the properties of oily gray forest soil during biological reclamation