华南农业大学学报2011，Vol.32Issue(1)：120-123,4.
加勒比松林地土壤对凋落物的响应
Soil Response to Litter in A Pinus caribaea Woodland
摘要
Abstract
The response of soil to litter in a Pinus caribaea woodland in Foshan City was studied in an experiment comparing a P. caribaea stand with and without litter. Results showed that compared with the P.caribaea stand without litter, the mean diameter at breast height (DBH) and mean tree height in the P.caribaea stand with litter significantly increased by 27％ and 12％ ,respectively,whereas its soil bulk density, capillary porosity, non-capillary porosity, total porosity and capillary water did not change significantly. Contents of soil organic matter,total N,total K and alkalized N in the P. caribaea stand with litter were 66％ ,48％ ,12％ and 160％ greater than those in the P. caribaea stand without litter,respectively,whereas contents of total P, available P and available K were close to the latter. Number of bacteria, fungi and actinomyces in the P. caribaea stand with litter were 18％ ,29％ and 41％ greater than those in the P.caribaea stand without litter,respectively,and activities of its urease,acid phosphatase and catalase were 1.2,1.1 and 5.1 times greater than the latter, respectively.关键词
加勒比松/凋落物/土壤物理性质/养分/微生物/酶活性Key words
Pinus caribaea/ litter/ soil physical property/ nutrient/ microorganism/ enzyme activity分类
生物科学引用本文复制引用
郑卫国,薛立,许鹏波,梁丽丽,冯慧芳..加勒比松林地土壤对凋落物的响应[J].华南农业大学学报,2011,32(1):120-123,4.基金项目
广东省林业局资助项目(4400-F07041) （4400-F07041）
佛山市科技项目(2005020061) （2005020061）
