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首页> 外文期刊>Land Degradation and Development >Grass and maize vegetation systems restore saline-sodic soils in the Songnen Plain of northeast China
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Grass and maize vegetation systems restore saline-sodic soils in the Songnen Plain of northeast China

机译：草和玉米植被系统恢复东北松嫩平原的盐水 - 碳化土壤

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摘要

Establishment of an appropriate vegetation system for reclamation of saline-sodic soils requires studies for specific salt-affected region(s). The phytoremediation of saline-sodic soils has not been well documented in the Songnen Plain of northeast China. Thus, in this study, we aimed to investigate the effects of grass (G) and maize (Zea mays L.; M) vegetation systems, which were established for 5years, on soil properties of 10 typical saline-sodic sampling sites across the Songnen Plain, in comparison with respective nonvegetated areas that were used as controls (CK) for the evaluation of variability among the sampling sites. Physicochemical properties, such as soil moisture, bulk density, porosity, saturated hydraulic conductivity, aggregate stability, pH, electric conductivity, total salt, organic C, total N, and C/N ratio, were analyzed. G and M vegetation significantly produced a 108% and 153% improvement in soil quality, respectively. Additionally, metagenomic analysis of the soil bacterial community revealed that vegetation enhanced the ability of the bacteria to survive in saline-sodic soils, relative to the control. The composition of the bacterial community was highly correlated with all of the soil physicochemical properties. G vegetation had better effects than M vegetation in enhancing soil organic C, total N and aggregate stability, whereas M vegetation more favorably adjusted soil pH, physical structure, and bacterial community than G vegetation did. Collectively, these findings demonstrate that M vegetation has a greater impact than G vegetation on repairing saline-sodic soils in the Songnen Plain of northeast China.
机译：建立适当的盐水 - 碳化土壤的植被系统需要针对特异性盐影响区域的研究。盐水 - 碳化土壤的植物修复在中国东北宋嫩平原尚未充分记录。因此，在这项研究中，我们旨在研究草（g）和玉米（Zea mays l）的影响，该植被系统成立5年的植被体系，对Songnen的10种典型的盐水 - 碳水化合物景点的土壤性质与各自的非终端区域相比，用于评估采样点之间的可变性的控制（CK）。分析了物理化学性质，如土壤水分，堆积密度，孔隙率，饱和液压导电性，骨料稳定性，pH，导电性，总盐，有机C，总N和C / N比。 G和M植被分别显着产生108％和153％的土壤质量。另外，土壤细菌群落的偏见分析表明，植被增强了细菌在盐水 - 碘土壤中存活的能力，相对于对照。细菌群落的组成与所有土壤物理化学性质高度相关。 G植被具有比M植被的更好的效果，增强土壤有机C，总N和骨料稳定性，而M植被更有利地调整土壤pH，物理结构和细菌群落而不是G植被。总的来说，这些研究结果表明，M植被对在东北部宋嫩平原修复盐水 - 碳化土壤中的G植被具有更大的影响。

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  • 来源
    《Land Degradation and Development》 |2018年第4期|共13页
  • 作者

    Luo Shasha; Tian Lei; Chang Chunling; Wang Shaojie; Zhang Jianfeng; Zhou Xue; Li Xiujun; Tran Lam-Son Phan; Tian Chunjie;

  • 作者单位

    Chinese Acad Sci Northeast Inst Geog &

    Agroecol Key Lab Mollisols Agroecol Changchun 130102 Jilin Peoples R China;

    Chinese Acad Sci Northeast Inst Geog &

    Agroecol Key Lab Mollisols Agroecol Changchun 130102 Jilin Peoples R China;

    Chinese Acad Sci Northeast Inst Geog &

    Agroecol Key Lab Mollisols Agroecol Changchun 130102 Jilin Peoples R China;

    Jilin Agr Univ Coll Resources &

    Environm Changchun 130118 Jilin Peoples R China;

    Jilin Agr Univ Coll Life Sci Changchun 130118 Jilin Peoples R China;

    Chinese Acad Sci Northeast Inst Geog &

    Agroecol Key Lab Mollisols Agroecol Changchun 130102 Jilin Peoples R China;

    Chinese Acad Sci Northeast Inst Geog &

    Agroecol Key Lab Mollisols Agroecol Changchun 130102 Jilin Peoples R China;

    Ton Duc Thang Univ Plant Stress Res Grp Ho Chi Minh 700000 Vietnam;

    Chinese Acad Sci Northeast Inst Geog &

    Agroecol Key Lab Mollisols Agroecol Changchun 130102 Jilin Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 土壤学;
  • 关键词

    aggregate stability; bacterial community structure; grass and maize for remediation; phytoremediation; saline-sodic soils; Songnen Plain;

    机译：聚合稳定性;细菌群落结构;草和玉米进行修复;植物修复;盐水 - 钠土;松嫩平原;

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