摘要
对长汀河田严重侵蚀地采取植灌促林生态恢复措施后生态系统的土壤有机碳、可溶性有机碳和微生物生物量碳进行了研究,并以未采取生态恢复措施的严重侵蚀退化形成的光板地与村旁受保护的风水林为对照。研究结果表明:采用生态恢复措施以后,土壤有机碳含、贮量分别达到49.03g/kg和54.14t/hm2,分别是光板地的10.43和4.06倍;土壤DOC含、贮量分别达到1.40g/kg和0.67t/hm2,分别是光板地的10.00倍和6.50倍;土壤MBC含、贮量分别达到2.60g/kg和1.27t/hm2,分别是光板地的6.34倍和4.23倍。
Changes of soil plantation was investigated organic carbon and DOC as well as SMBC of severely eroded Pinus massoniana after planted with shrubs to facilitate community restoration compared with the naked ground and protective second forest in Changting County, Fujian Province. The results showed that soil organic carbon content and storage of the plantation after planted with shrubs amounted up to 49.03 g/kg and 54.14 t/hm^2 respectively, which were 10.43 and 4.06 times as high as that of the naked ground. The dissolved organic carbon content and storage of soil top layer was 1.40 g/kg and 0.67 t/hm^2 respectively, which were 10.00 and 6.50 times as high as that of the naked ground. The soil microbial biomass carbon content and storage was 2.60 g/kg and 1.27 t/hm^2 respectively, which were 6.34 and 4.23 times as high as that of naked ground.
出处
《云南地理环境研究》
2007年第3期40-45,54,共7页
Yunnan Geographic Environment Research
关键词
植灌促林
有机碳
可溶性有机碳
微生物生物量碳
shrub-planting for forest restoration
soil organic carbon
dissolved organic carbon
microbial biomass carbon
