北京林业大学学报2015，Vol.37Issue(10)：58-66,9.DOI:10.13332/j.1000-1522.20150086
中俄输油管道工程建设对大兴安岭典型森林生态系统的影响
Effects of Mohe-Daqing oil pipeline project construction on typical forest ecosystems in Daxing'an Mountains.
摘要
Abstract
Mohe-Daqing section of the China-Russia oil pipeline project runs through Daxing' an Mountains and the Songnen Plain. Project construction would disturb vegetation and soil of the forests. In this study, we measured soil properties, plant biomass and species biodiversity in the operational region of the oil pipeline and the non-operational region in the Rhododendron dauricum-- Betula platyphylla forest, Vaccinum vitis-idaea--Larix gmelini forest and Lespedeza bicolor--Pinus sylvestris var. mongolica forest. The results showed that: 1 ) Pipeline construction had no effects on soil pH; however, total P concentration decreased significantly ( P <0. 05 ) . Total N concentration decreased significantly ( P <0. 05) in the soil layer of 0--10 cm;however, it increased in the soil layers of 10--20 cm and 20--30 cm in all of the three forests. Total K concentration decreased significantly ( P<0. 05 ) in the soil layers of 0--10 cm and 10--20 cm in R. dauricum--B. platyphylla forest;however, there was no change in the total K concentration ( P >0. 05 ) after pipeline construction in V. vitis-idaea--L. gmelini forest and L. bicolor--P. sylvestris var. mongolica forest. 2 ) Tree biomass decreased significantly ( P <0. 05 ) in R. dauricum--B. platyphylla forest. However, shrub and herb biomass did not change significantly ( P >0. 05) in this forest. Tree and shrub biomass decreased significantly (P <0. 05) in V. vitis-idaea--L. gmelini forest and L. bicolor--P. sylvestris var. mongolica forest. In contrast, herb biomass increased significantly ( P<0. 05 ) in these two forests. 3 ) Oil pipeline project construction had more effects on tree and shrub species diversity than on the herb species diversity. Tree and shrub species biodiversity decreased at all sites after construction except for shrub species biodiversity in the V. vitis-idaea--L. gmelini forest. Herb species biodiversity increased in L. bicolor--P. sylvestris var. mongolica forest;however, it decreased in R. dauricum--B. platyphylla forest and V. vitis-idaea--L. gmelini forest. Our results indicated that restoration of the vegetation was difficult after oil pipeline project construction due to the damage to both vegetation and soil. More artificial measures are necessary to restore the vegetation. Otherwise, the degraded ecosystem would be harmful to the pipeline at sites with poor soil textures.关键词
输油管道工程/土壤化学性质/生物量/植物多样性Key words
oil pipeline project/soil chemical property/biomass/plant species biodiversity分类
农业科技引用本文复制引用
王竞红,蔡体久,葛树生,刘敬旭,琚存勇,孙晓新..中俄输油管道工程建设对大兴安岭典型森林生态系统的影响[J].北京林业大学学报,2015,37(10):58-66,9.基金项目
中俄原油管道工程漠河—大庆段生态环境监测项目(2013WJS086)、黑龙江省自然科学基金面上项目(C201340)、黑龙江省博士后科研启动金项目(LBH-Q13006). （2013WJS086）
