猪粪配施化肥对侵蚀林地土壤团聚体及其有机碳分布的影响

郭力铭; 陈宇琳; 周碧青; 吴凤英; 毛艳玲

doi:10.19303/j.issn.1008-0384.2021.09.015

猪粪配施化肥对侵蚀林地土壤团聚体及其有机碳分布的影响

doi: 10.19303/j.issn.1008-0384.2021.09.015

郭力铭^{1, 2,},
陈宇琳^{1, 2},
周碧青^{1, 2},
吴凤英^{1, 2},
毛艳玲^{1, 2, 3, ,}

1.
福建农林大学资源与环境学院，福建　福州　350002
2.
土壤生态系统健康与调控福建省高校重点实验室，福建　福州　350002
3.
自然生物资源保育利用福建省高校工程研究中心，福建　福州　350002

基金项目: 福建省林业科技推广项目（K1520030A）；福建农林大学科技创新专项基金项目（KFA17397A）

详细信息

作者简介:
郭力铭（1996−），男，硕士研究生，主要从事土壤碳氮循环研究（E-mail：774028350@qq.com）

通讯作者:
毛艳玲（1971−），女，博士，教授，主要从事土壤碳氮循环研究（E-mail：fafum@126.com）

中图分类号: S 152.4
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- 被引次数: 0
出版历程
- 收稿日期: 2021-06-09
- 修回日期: 2021-07-10
- 网络出版日期: 2021-10-23
- 刊出日期: 2021-09-28

Effect of Pig Manure Combined with Chemical Fertilizer on Soil Properties and Aggregate Organic Carbon Distribution on Eroded Forest Lands

GUO Liming^{1, 2
,},
CHEN Yulin^{1, 2},
ZHOU Biqing^{1, 2},
WU Fengying^{1, 2},
MAO Yanling^{1, 2, 3
, ,}

1.
College of Resource and Environment, Fujian Agriculture and Forestry University, Fuzhou, Fujian　350002, China
2.
University Key Lab of Soil Ecosystem Health and Regulation in Fujian, Fujian Agriculture and Forestry University, Fuzhou, Fujian　350002, China
3.
Fujian Colleges and Universities Engineering Research Institute of Conservation & Utilization of Natural Bioresources, Fujian Agriculture and Forestry University, Fuzhou, Fujian　350002, China

摘要

摘要: 目的研究猪粪配施化肥对侵蚀林地土壤及团聚体有机碳分布的影响，为劣地土壤改良及猪粪合理消纳提供思路。方法采用短期盆栽试验，设置对照、化肥、化肥+低量猪粪、化肥+中量猪粪、化肥+高量猪粪5种处理，其中化肥施用量F为500 kg·hm⁻²；猪粪施用量由低到高分别为7.5、15、30 t·hm⁻²。通过分析团聚体分布情况、平均重量直径、几何平均直径、团聚体破坏率及有机碳含量等指标，研究不同猪粪施用量对侵蚀林地土壤及团聚体有机碳分布的影响。结果（1）施用猪粪能够促进水稳性微团聚体向大团聚体转化。当施用中量猪粪时，＜0.25 mm的水稳性团聚体数量减少20.56%，而＞2 mm的水稳性团聚体含量增加了24.92%。（2）施用猪粪可以显著提高团聚体的平均重量直径和几何平均直径（P＜0.05），且提高量随着猪粪施用量的增大而增大。（3）施用猪粪能够有效降低团聚体破坏率（PAD），其中中量施用猪粪效果最显著（P＜0.05），降幅为19.10%。（4）施用猪粪能够显著增加土壤中及水稳性团聚体有机碳的含量（P＜0.05）。结论猪粪配施化肥可有效提高侵蚀林地土壤有机碳含量及团聚体稳定性。当猪粪施用量为15 t·hm⁻²时，可显著提高团聚体平均重量直径和集合平均直径，团聚体稳定性最强，有效降低了团聚体破坏率；当猪粪施用量为30 t·hm⁻²时，非水稳性大团聚体的含量及水稳性大团聚体的有机碳含量显著增加。
- 猪粪 /
- 土壤侵蚀 /
- 林地土壤 /
- 团聚体 /
- 有机碳
Abstract: Objective Effects of the application of pig manure combined with chemical fertilizer on the soil properties and aggregate organic carbon distribution on eroded forest lands were studied for soil improvement and waste utilization. Method In a short-term, pot experiment, 5 fertilizations including control and applications of chemical fertilizer at a rate of 500kg·hm⁻² without or with an addition of pig manure at low (7.5 t·hm⁻²), medium (15 t·hm⁻²), or high (30 t·hm⁻²) level were incorporated into the soil. Distribution, average weight diameter, geometric average diameter, destruction rate, and organic carbon content of the aggregates in the resulting soil were determined. Results (1) The addition of pig manure promoted the water-stable soil microaggregates transforming into macroaggregates. When pig manure was applied at a rate of 15 t·hm⁻², the number of aggregates sized smaller than 0.25 mm decreased by 20.56% and that of aggregates larger than 2 mm increased by 24.92% over control. (2) Pig manure significantly increased the average weight diameter and geometric average diameter of the aggregates (P＜0.05) with a upward trend as the addition rate increased. (3) Pig manure effectively reduced 19.10% on the aggregate destruction rate (PAD) with the 15 t·hm⁻² application rate that delivered the most significant effect (P＜0.05). And (4) pig manure significantly raised the organic carbon content in the soil and aggregates (P＜0.05). Conclusion When combined with chemical fertilizer, pig manure could effectively increase the organic carbon content and improved the aggregate stability of the soil on an eroded forest land. At a rate of 15 t·hm⁻², the pig manure addition significantly increased the average weight diameter and average diameter of the soil aggregates with the highest stability among all treatments, while effectively reduced PAD. At a higher rate of 30 t·hm⁻², the pig manure application significantly increased the organic carbon contents in both non-water-stable and water-stable macroaggregates.
- pig manure /
- soil erosion /
- forest soil /
- aggregate /
- organic carbon

HTML全文

图 1 施用猪粪对竹柏生长状况的影响

注：CK，对照；F，单施化肥处理；LFM，化肥+低量猪粪；MFM，化肥+中量猪粪；HFM，化肥+高量猪粪处理。不同小写字母表示不同处理间差异显著（P＜0.05），下同。

Figure 1. Effect of pig manure application on plant growth

Note: CK, control; F: chemical fertilizer; LFM: chemical fertilizer+low pig manure; MFM: chemical fertilizer+medium pig manure; HFM: chemical fertilizer+high pig manure. Data with different lowercase letters indicate significant differences between different treatments at P＜0.05 (Duncan method). Same for below.

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图 2 施用猪粪对土壤中非水稳性团聚体分布的影响

Figure 2. Effect of pig manure application on distribution of non-water-stable aggregates in soil

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图 3 施用猪粪对土壤中水稳性团聚体分布的影响

Figure 3. Effect of pig manure application on distribution of water-stable aggregates in soil

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图 4 施用猪粪后红壤中团聚体破坏率

Figure 4. PAD of red soil after application of pig manure

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表 1 施用猪粪对土壤非水稳性团聚体稳定性的影响

Table 1. Effect of pig manure application on stability of non-water-stable aggregates in soil （单位：mm)

指标 Index	对照 CK	单施化肥处理 F	化肥+低量猪粪 LFM	化肥+中量猪粪 MFM	化肥+高量猪粪 HFM
MWD	2.32±0.12 c	2.56±0.18 c	2.88±0.13 b	3.44±0.27 a	3.69±0.21 a
GMD	1.01±0.03 d	1.11±0.04 d	1.47±0.08 c	1.76±0.07 b	2.00±0.14 a
注：同行数据后不同小写字母表示差异显著（P＜0.05）。表2～3同。 Note: Data with different lowercase letters indicate significant differences at P＜0.05. Same for Tables 2–3.

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表 2 猪粪对土壤水稳性团聚体稳定性的影响

Table 2. Effect of pig manure application on stability of water-stable aggregates in soil （单位：mm)

指标 Index	对照 CK	单施化肥处理 F	化肥+低量猪粪 LFM	化肥+中量猪粪 MFM	化肥+高量猪粪 HFM
MWD	0.44±0.02 c	0.68±0.04 bc	0.77±0.03 b	1.01±0.07 a	0.92±0.05 ab
GMD	0.23±0.01 c	0.25±0.02 c	0.29±0.01 bc	0.58±0.03 a	0.36±0.04 b

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表 3 猪粪对水稳性团聚体有机碳含量的影响

Table 3. Effect of pig manure on organic carbon content of water-stable aggregates （单位：g·kg⁻¹）

处理 Treatment	有机碳 SOC	各级团聚体有机碳含量 Aggregate organic carbon content at all levels
处理 Treatment	有机碳 SOC	＞2 mm	1～2 mm	0.5～1 mm	0.25～0.5 mm	＜0.25 mm
对照 CK	3.22±0.22 e	0.10±0.01 e	0.25±0.02 c	0.41±0.02 c	0.92±0.06 bc	1.54±0.18 a
单施化肥处理 F	3.94±0.29 d	0.54±0.03 d	0.38±0.01 a	0.59±0.04 b	0.97±0.07 bc	1.45±0.16 ab
化肥+低量猪粪 LFM	4.19±0.36 c	0.98±0.04 c	0.24±0.02 c	0.48±0.04 c	1.15±0.11 a	1.35±0.19 bc
化肥+中量猪粪 MFM	4.80±0.42 b	1.50±0.04 b	0.29±0.02 b	0.73±0.06 a	1.08±0.08 b	1.19±0.22 c
化肥+高量猪粪 HFM	6.04±0.59 a	2.72±0.24 a	0.39±0.01 a	0.78±0.05 a	1.12±0.10 ab	1.02±0.16 d

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