摘要
以海南菠萝园为研究对象,通过调查取样分析表明,(1)随种植年限的延长及坡度的提高,土壤侵蚀量增加,菠萝园表层土壤石砾含量增加。(2)同一坡度,菠萝园土壤有机质、全氮、碱解氮和速效钾含量也随种植年限的延长及坡度的提高,侵蚀量增加而下降,尤其是有机质和全氮含量。(3)菠萝园土壤磷素及全钾含量,同一坡度不同年限间没有表现出衰退的趋势。
The investigations and analysis of sample soil in Hainan pineapple orchard reveal the following results: (1) As the prolonging of planting life and the going up of ground slope, the contents of stone blocks in surface soil increase. (2) With the same ground slope, the contents of organic matter, total nitrogen, alkaline hydrolysis nitrogen and quick-acting potassium in the soil decrease as the prolonging of planting life, and the bigger ground slopes are, the more the contents of organic matter and total nitrogen decrease, but the alkaline hydrolysis nitrogen and quick-acting haven抰 this trend. (3) The contents of phosphorus and total potassium haven抰 regular differences with the same ground slope and the different planting life.
出处
《土壤与环境》
CSCD
2002年第4期363-366,共4页
Soil and Environmental Sciences
基金
国家自然科学基金项目(30160070)
