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首页> 外文期刊>Ecological indicators >Soil characteristics of Eucalyptus urophylla × Eucalyptus grandis plantations under different management measures for harvest residues with soil depth gradient across time
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Soil characteristics of Eucalyptus urophylla × Eucalyptus grandis plantations under different management measures for harvest residues with soil depth gradient across time

机译：不同管理措施下土壤深度梯度与土壤深度梯度不同管理措施下桉树尿道×桉树玉米糖尿病种植园的土壤特征

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摘要

The clear-cut burning method for forest clearing has been widely used in Eucalyptus plantations in Southern China for successive planting generations. Harvest residues can provide a considerable nutritional supply for Eucalyptus plantations by affecting soil fertility qualities. Thus, harvest residue management is crucial. This study aims to investigate the effects of different management measures for harvest residues on the soil fertility of Eucalyptus urophyllaxEucalyptus grandis plantations and the changes in soil characteristics at different times and soil depths. We selected an evergreen broad-leaved forest (CK0) and a third-generation E. urophylla x E. grandis plantation (CK) as the control. The experimental plots were burned and retained the harvesting residue after CK harvesting. Soil samples were obtained one month, one year, and five years after burning (B1, B2 and B3, respectively) and retaining (R1, R2, and R3, respectively) the harvest residues. All measured soil properties were significantly affected by depth, stand, and interactions, except for the pH value. Discriminant analysis showed that the effects of different stands on the primary physicochemical properties of soil were higher than those on the microelement and biological characteristics. Varying stands had a significant influence on the primary physicochemical properties of soil across time. All stands were classified into four grades according to soil quality assessment values. The findings showed that CK0 obtained the highest score for grade I, followed by R2 (grade II); B1, R1, and R3 (grade III); and CK, B2, and B3, which had the lowest grade. Soil parameters were affected not only by soil depth but also by different management measures for harvest residues across time. In addition, although no significant difference was found in soil fertility quality between burning and retaining harvest residues in the short term (about a month), the soil fertility quality of a forest retaining harvest residues was significantly higher than that of a forest burning harvest residues in the long term.
机译：森林清算的清除燃烧方法已广泛应用于中国南部的桉树种植园，连续种植代。通过影响土壤肥力质量，收获残余物可以为桉树种植园提供相当大的营养供应。因此，收获残余管理是至关重要的。本研究旨在探讨采伐残余物对桉树尿酸尿酸尿酸土壤肥力的不同管理措施对不同时间和土壤深度土壤特性的变化的影响。我们选择了一个常绿阔叶森林（CK0）和第三代E. Urophylla X E. Grandis Plantation（CK）作为控制。在CK收获后燃烧并保留了实验块并保留了收获残余物。在燃烧（B1，B2和B3分别）和保留（分别为R1，R2和R3）后，获得土壤样品，一年，一年，五年，并保留收获残余物。除pH值外，所有测量的土壤性质都受到深度，支架和相互作用的显着影响。判别分析表明，不同代表对土壤初级物理化学性质的影响高于微量化和生物学特性。随着时间的推移对土壤的主要物理化学特性有显着影响。根据土壤质量评估价值，所有立场都分为四个等级。研究结果表明，CK0获得了等级I的最高分，随后是R2（二级）; B1，R1和R3（III级）;和CK，B2和B3，等级最低。土壤参数不仅受土壤深度影响，而且通过不同的管理措施对跨越时间的采伐残留量。此外，虽然在短期内燃烧和保留收获残余物之间没有显着差异（大约一个月），但森林保留收获残余物的土壤肥力质量明显高于森林燃烧残余物的土壤肥力质量在长期。

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  • 来源
    《Ecological indicators》 |2020年第1期|106530.1-106530.12|共12页
  • 作者

    Zhu Lingyue; Wang Jiachen; Weng Yilin; Chen Xiaolong; Wu Lichao;

  • 作者单位

    Cent South Univ Forestry & Technol Lab Soil & Water Conservat & Desertificat Control Coll Forestry Shaoshan South Rd 498 Changsha 410004 Hunan Peoples R China;

    Cent South Univ Forestry & Technol Lab Soil & Water Conservat & Desertificat Control Coll Forestry Shaoshan South Rd 498 Changsha 410004 Hunan Peoples R China;

    Cent South Univ Forestry & Technol Lab Soil & Water Conservat & Desertificat Control Coll Forestry Shaoshan South Rd 498 Changsha 410004 Hunan Peoples R China;

    State Owned Daguishan Forest Farm Hezhou 542800 Guangxi Peoples R China;

    Natl Minist Educ Key Lab Cultivat & Protect Nonwood Forest Trees Shaoshan South Rd 498 Changsha 410004 Hunan Peoples R China;

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

    Harvest residue management; Eucalyptus urophylla x E. grandis; Discriminant analysis; Soil quality; Soil depth gradient;

    机译：收获残留物管理;桉树尿道X X E. Grandis;判别分析;土壤质量;土壤深度梯度;

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