不同地貌天然气开采工程对土壤流失及其养分组成的影响——以四川地区为例  

Effects of Natural Gas Exploitation Projects on Soil Erosion and Nutrient Composition in Different Landforms-A Case Study of Sichuan Province

作　　者：吕晓航 刘源 薛元杰 李文君 Lyu Xiaohang;Liu Yuan;Xue Yuanjie;Li Wenjun(Safety,Environmental Protection and Technical Supervision,Petro China Southwest Oil&Gas Field Company,Chengdu 610057,Sichuan,China)

机构地区：[1]中国石油股份有限公司西南油气田分公司,安全环保与技术监督研究院,四川成都610057

出　　处：《绿色科技》2024年第12期13-16,共4页Journal of Green Science and Technology

摘　　要：选取四川地区不同地质地貌区域特点的天然气开采区块,目的为研究天然气开采不同施工工艺结束后各工程区内生态功能逐步恢复趋势,分析不同地貌类型、不同工程区内土壤流失及土壤养分情况,使用的方法有点位采集土样实验法及跟踪观测法。结果表明:管线工程区新增土壤流失量所占比例最大,站场及阀室工程区新增土壤流失量在50%以上;不同地貌及区域内的植被恢复年限总体在4~6年期间。结论是现状管线工程区对土壤指标的影响要大于点状站场工程区。In this paper,natural gas exploitation blocks with different geological and geomorphological characteristics in Sichuan region are selected to study the trend of ecological function restoration in each project area after the completion of different construction techniques for natural gas exploitation.The soil loss and soil nutrients in different geomorphologic types and engineering areas are analyzed.The methods used are spot sampling experiment and tracking observation.The results show that the proportion of new soil loss is the largest in the pipeline engineering area,and the amount of new soil loss is more than 50%in the station yard and valve chamber engineering area.The restoration time of vegetation in different landforms and regions is from 4 to 6 years.The conclusion is that the influence of the current pipeline engineering area on the soil index is greater than that of the spot station and yard engineering area.

关 键 词：天然气 土壤流失 土壤养分 四川 

分 类 号：S157[农业科学—土壤学]