To know the fundamental nutrient characteristics of Wenchang coastal shell debris-rich sandy soil under different land use types,90 surface soil samples from six vegetation types in the prime coastal shell debris-rich sandy soil areas of Wenchang City were collected and analyzed.The results revealed that the coastal shell debris riched sandy soil in Wenchang is weakly alkaline,with a pH value of(7.85±0.47);the contents of organic matter(11.75±4.86)g·kg-1 and alkaline nitrogen(70.59±42.64)mg·kg-1 are relatively low;the content of available phosphorus[Olsen-P,(44.59±55.46)]mg·kg-1 is relatively high and significantly different between samples;the content of available potassium is(78.83±72.72)g·kg-1;severe phospho-rus deficiency exists in forest soil;the phosphorus content in arable soil,especially in vegetable fields,is incredibly abundant.The results reflect the nutrient status of the coastal shell-debris sandy soil in Wenchang,providing a reference for the scientific formulation of regional crop fertilization plans and early warning of excessive soil phosphorus.
关键词
滨海贝屑沙土/养分状况/土地利用方式
Key words
coastal shell debris-rich sandy soil/nutritional status/land use types
维普
万方数据