The construction of underground pipelines negatively impacts soil productivity in various ecosystems. However, the temporal progression in the recovery of soil productivity following the reclamation of cropland impacted by natural gas pipeline rights‐of‐way (ROWs) construction remains unclear. This study examined temporal, post‐reclamation changes in selected soil health indicators and productivity on reclaimed underground natural gas pipeline ROWs on cropland. Soil and crop samples were collected from ROWs ranging in time elapsed since reclamation (TSR) from 6 to 12 years and from adjacent undisturbed locations (off‐ROW) in the same field. The soil samples were analyzed for soil health indicators (permanganate‐oxidizable carbon (POXC), soil respiration, and autoclaved citrate‐extractable (ACE) protein) and selected chemical properties. Crop samples were assessed for grain and total biomass yields as well as grain protein content. Compared to the off‐ROW, soil organic C on the ROWs was 29% (6‐year ROW) and 33% (9‐year ROW) lower than on the off‐ROWs. Soil respiration recovered within 6 years of ROW reclamation, whereas it took 12 years for POXC and ACE protein to recover to off‐ROW levels. Grain and biomass yields 12 years post‐reclamation were still 42% and 36%, respectively, lower on the ROWs than on the off‐ROWs. However, measured soil attributes recovered faster than crop variables, indicating that pipeline construction on cropland has longer‐term impacts on crop yields than on soil attributes. These results indicate that, although underground pipeline construction has detrimental impacts on soil and crop attributes, these attributes would slowly recover to pre‐construction levels with increasing TSR.

中文翻译：

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农田开垦天然气管道通行权土壤健康和生产力的时间趋势


地下管道的建设对各种生态系统中的土壤生产力产生负面影响。然而，在受天然气管道通行权 （ROW） 建设影响的农田开垦后，土壤生产力恢复的时间进展仍不清楚。本研究检查了农田上开垦的地下天然气管道 ROW 的选定土壤健康指标和生产力的时间、复垦后变化。土壤和作物样品是从 RW 收集的，自复垦 （TSR） 以来经过的时间范围为 6 至 12 年，并且来自同一田地中相邻的未受干扰位置 （off-ROW）。分析土壤样品的土壤健康指标 （高锰酸盐可氧化碳 （POXC） 、土壤呼吸和高压灭菌柠檬酸盐可提取物 （ACE） 蛋白）和选定的化学性质。评估了作物样品的谷物和总生物量产量以及谷物蛋白质含量。与非 ROW 相比，ROWs 上的土壤有机碳比非 ROW 低 29%（6 年 ROW）和 33%（9 年 ROW）。土壤呼吸在 ROW 复垦后 6 年内恢复，而 POXC 和 ACE 蛋白需要 12 年才能恢复到非 ROW 水平。复垦后 12 年的谷物和生物量产量仍分别低于非 RAW 的 42% 和 36%。然而，测量的土壤属性恢复速度比作物变量快，这表明农田上的管道建设对作物产量的影响比对土壤属性的影响更长期。这些结果表明，尽管地下管道建设对土壤和作物属性有不利影响，但随着 TSR 的增加，这些属性会慢慢恢复到施工前的水平。