摘要
采集了福建省建瓯全市15个乡镇毛竹(Phyllostachys heterocycla cv.pubescens)林表层土壤,对其养分含量进行了测试分析,在此基础上对毛竹林土壤养分含量进行了丰缺分级。结果表明:建瓯市毛竹林土壤较为肥沃,土壤酸碱性适宜毛竹生产;表层土壤有机质含量为较高,为3.98%;全氮平均含量为1.48 g/kg,碱解氮平均含量为167 mg/kg,土壤供氮较为充足;有效磷含量为9.93 mg/kg,远低于毛竹生长所需;速效钾含量为55.4 mg/kg,稍低于毛竹正常生长所需;土壤中量元素钙、镁含量普遍较低。整个建瓯市毛竹林土壤养分存在富氮低磷缺钾的现象,同时缺乏供应中量元素养分的能力,不同乡镇间毛竹林土壤养分失调的种类及程度有较大的变化。
Surface soil samples were collected from Phyllostachys heterocycla cv. pubescens stands in 15 towns of Jian＇ou, Fujian province, for determination and evaluation of nutrient contents. Results showed that the soils of bamboo stand were fertile in general. Soil pH values were suitable for the bamboo growth. The average organic matter content in bamboo stand was 3.98%, higher than that in common cultivated land. The average total nitrogen content was 1.48g/kg, and the available nitrogen content was 167mg/kg, indicating enough nitrogen availability supply. The content of available phosphorus was 9.93mg/kg, much lower than the normal requirement for bamboo growth. The content of available potassium was 55.4mg/kg, a little lower than the requirement for bamboo growth. The determination demonstrated that contents of secondary nutrients in tested soils such as exchangeable calcium and magnesium were low. Overall, the bamboo soils in Jian＇ou were rich in nitrogen and lack in phosphorus, potassium, calcium and magnesium. The classification analysis suggested that the bamboo soil fertility varied greatly among various areas. Efficient nutrient input and management would be benefit to shoot yield and culm production in Jian＇ou city.
出处
《浙江林业科技》
北大核心
2012年第1期1-4,共4页
Journal of Zhejiang Forestry Science and Technology
关键词
建瓯
毛竹
土壤
养分含量
丰缺分级
Jian＇ou
Phyllostachys heterocycla cv. pubescens
soil
nutrient contents
classification
