Characteristics of Soil Physical Property Improvement and Carbon Sequestration for Agroforestry in Yellow River Flood Plain

Liu Chao; Pan Jiachen; Dong Zhi; Li Yaobin; Zhang Qi; Wu Qicong

doi:10.13961/j.cnki.stbctb.2022.03.040

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Characteristics of Soil Physical Property Improvement and Carbon Sequestration for Agroforestry in Yellow River Flood Plain

- Characteristics of Soil Physical Property Improvement and Carbon Sequestration for Agroforestry in Yellow River Flood Plain
- Bulletin of Soiland Water Conservation Vol. 42, Issue 3, Pages: 318-323(2022)
- 作者机构：
  
  1. 山东农业大学林学院/泰山森林生态系统定位研究站,山东,泰安,271018
  2. 山东省国有东明林场, 山东东明,274509
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2022.03.040
  CLC： S153;S156
- Published：2022
- 稿件说明：
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Liu Chao, Pan Jiachen, Dong Zhi, et al. Characteristics of Soil Physical Property Improvement and Carbon Sequestration for Agroforestry in Yellow River Flood Plain[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 318-323.
DOI：

Liu Chao, Pan Jiachen, Dong Zhi, et al. Characteristics of Soil Physical Property Improvement and Carbon Sequestration for Agroforestry in Yellow River Flood Plain[J]. Bulletin of Soiland Water Conservation, 2022, 42(3): 318-323. DOI： 10.13961/j.cnki.stbctb.2022.03.040.

摘要

[目的

]

探究白蜡林不同林农间作模式对黄泛沙地土壤物理性质改良尤其是碳固持的影响，为区域未来林农间作模式优化提供科学指导。[方法

]

以山东省菏泽市黄泛沙地国有东明林场白蜡—菊花、白蜡—花生、白蜡—大豆3种典型林农间作模式为研究对象，以白蜡纯林为对照，采用野外采样与室内测试相结合的方法，分析不同模式的土壤物理性质及碳固持特征。[结果

]

①0—20 cm的土壤容重差异显著，呈现白蜡纯林>白蜡—花生间作>白蜡—菊花间作>白蜡—大豆间作的趋势，白蜡—大豆间作模式可明显降低0—20 cm层土壤容重（较其他模式降低7.4%～13.2%），提高土壤总孔隙度（提高2.3%～19.8%），改良土壤结构；②白蜡—大豆间作模式土壤固碳能力最强，比纯林高14.54 t/hm

，且随土层深度增加表现越明显，更有益于增强土壤肥力，进而提高土壤质量。[结论

]

在碳中和的模式下，白蜡—大豆间作模式应是黄泛沙地农林经营管理的重点，在提高区域生态效益的同时，可进一步促进农林业绿色发展。

Abstract

[Objective] The effects of different agroforestry systems on soil physical properties

especially carbon sequestration

in the Yellow River flood plain was determined

in order to provide scientific guidance for optimizing regional agroforestry systems in the future.[Methods] Soil physical properties and carbon sequestration characteristics were analyzed in a Chines ash (Fraxinus chinensis) plantation under different agroforestry systems. Soil samples were collected from an ash plantation located in the Dongming National Forest Farm

Shandong Province

China. The following agroforestry systems were evaluated:ash and chrysanthemum (BJ)

ash and peanut (BH)

ash and soybean (BD)

and ash alone (as the control

CK).[Results] ① The BD system significantly reduced soil bulk density in the 0-20 cm layer (7.4%~13.2% lower than the other systems)

with bulk density following the order of CK>BH>BJ>BD. The BD system also increased soil total porosity (2.3%~19.8% higher)

improved soil water retention ratio

and improved soil structure; ② The BD system had the strongest soil carbon sequestration capacity (14.54 t/hm2 higher than that of CK). Soil carbon sequestration increased with soil depth

and was more conducive to enhancing soil fertility and improving soil quality.[Conclusion] In the carbon neutral mode

the BD agroforestry system should be the focus of agroforestry management in the Yellow River flood plain

because this system not only improves the regional ecological benefit

but also promotes the green development of agriculture and forestry.

关键词

Keywords

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