Font Size: a A A

Investigation On Soil Characteristics Of Bamboo Plantation Of Phyllostachys Pubescens In Jian'ou, Fujian

Posted on:2011-09-19Degree:MasterType:Thesis
Country:ChinaCandidate:W DongFull Text:PDF
GTID:2143330332963595Subject:Forest cultivation
Abstract/Summary:PDF Full Text Request
In order to provide evidences for moso-bamboo fertilization and the sustainable bamboo production, it is necessary to investigate the bamboo soil basic properties systematically. In this project, GPS was used for the soil sampling site location and the area of bamboo in various towns was considered. According to the towns of Jian'ou city, there were total 212 sample sites selected. Each sample site contained 3 sub-sample sites and soil samples were mixed with the 3 sub-samples. Each soil pedon was done in 3 layers as 0-20, 20-40 and 40-60 cm, respectively. Soil samples were air-dried and sieved in the laboratory. Indicators of soil were included as soil bulk density, organic matter, total nitrogen, total phosphorus, total potassium, available nitrogen, available phosphorus, available potassium, pH, Zn, Cu, Fe and Mn. The common statistics, geo-statistics and geographical information system methods were employed to analyze the spatial distribution characteristics of bamboo soil properties in Jian'ou city.The results showed that: (a) Soil organic matter are high as 3.98, 2.74 and 2.13%, respectively, in the three soil layers of 0-20, 20-40 and 40-60cm in the bamboo fields of Jiang'ou city. (b) Soil total nitrogen content is 1.48, 1.06 and 0.87 g/kg, respectively, in the three soil layers that is also higher than that in the local agricultural soil. (c) Soil total phosphorus and potassium content is common as 2.48 and 19.1 g/kg in the surface layer. Bit more is in the next layers. (d) Soil available nitrogen is higher than that in the local agricultural field, its average values are 165.0, 125.8 and 95.1 mg/kg, respectively. (e) Soil available phosphorus content is lower as 11.37, 6.90 and 5.83 mg/kg in the three layers. The content of available phosphorus is not related to the total phosphorus. (f) Soil available potassium content is 54.5, 46.1 and 49.5 mg/kg, respectively, in the 3 different layers. That is also lower and not related to the soil total potassium yet. (g) Soil pH falls in the range of 4.5 to 7.0. That is suitable for the growth of moso-bamboo. (h) Soil CEC is low as 3.90, 3.81 and 3.74 cmol/kg. (i) Low exchangeable cations of Na, Ca and Mg are observed. The base saturation rate is also low as 26.7, 21.7 and 19.7%. (j) Soil copper content is 34.8, 38.5 and 41.0 mg/kg, zinc content is 162.7, 166.8, 170.1 mg/kg, iron content is 46.0, 48.7 and 49.2 g/kg, manganese content is 580.5, 545.8 and 563.4 mg/kg. (k) Soil bulk density is 0.96, 1.01 and 1.03 g/cm~3, the rate of gravel is 19.1, 20.8 and 20.4%. Due to the complicated landform of Jian'ou city, the elements of bamboo soil show great variations in spatial distribution, and various elements are not consistent in distribution.Overall, the moso-bamboo soils of Jian'ou city has a high content in organic carbon and nitrogen, but low in phosphorus, and is lack of exchangeable potassium, calcium and magnesium. The soil pH is medium and suitable for moso-bamboo. We suggest that phosphorus and potassium fertilizer should be applied in advance to the intensive managed moso-bamboo field.
Keywords/Search Tags:Phyllostachys pubescens, soil, nutrient content, spatial distribution, fertilization
PDF Full Text Request
Related items