长期施肥下红壤性水稻土固碳效应特征

doi:10.11924/j.issn.1000-6850.casb20200200130

中国农学通报 ›› 2021, Vol. 37 ›› Issue (2): 61-66.doi: 10.11924/j.issn.1000-6850.casb20200200130

所属专题：水稻

• 资源·环境·生态·土壤·气象 • 上一篇下一篇

长期施肥下红壤性水稻土固碳效应特征

叶会财(), 李大明, 胡志华, 胡丹丹, 宋惠洁, 万长艳(), 胡惠文, 柳开楼

江西省红壤研究所,江西进贤 331717

收稿日期:2020-02-22 修回日期:2020-04-07 出版日期:2021-01-15 发布日期:2021-01-14
通讯作者: 万长艳
作者简介:叶会财,男,1981年出生,江西赣县人,高级农艺师,硕士,主要从事土壤肥料与植物营养方面的研究。通信地址：331717 江西省进贤县张公镇江西省红壤研究所,Tel：0791-85537751,E-mail：462015130@qq.com。
基金资助:
江西省自然科学基金项目“红壤旱地和水田上不同物料有机碳固定效率的差异及机制”(20192BAB203022);江西省水稻产业技术体系岗位科学家项目“质量安全与环境控制岗位”(JXARS-02-06)

Carbon Sequestration Characteristics of Red Paddy Soil Under Long-term Fertilization

Ye Huicai(), Li Daming, Hu Zhihua, Hu Dandan, Song Huijie, Wan Changyan(), Hu Huiwen, Liu Kailou

Jiangxi Institute of Red Soil, Jinxian Jiangxi 331717

Received:2020-02-22 Revised:2020-04-07 Online:2021-01-15 Published:2021-01-14
Contact: Wan Changyan

摘要/Abstract

摘要：

明确长期施肥红壤稻田碳投入与碳储量、碳含量与产量间的关系,以及不同施肥措施的固碳效率差异。以红壤稻田长期定位施肥试验为试材,用连续监测的方法,测得长期不同施肥水稻产量、土壤有机碳含量和储量,水稻产量数据。所有处理土壤有机碳含量均呈上升趋势,37年后NPKM处理分别比CK、NPK、NPK2高30.5%、23.4%、24.7%;有机碳储量均随碳投入的增加而显著升高;NPK、NPK2和NPKM处理的固碳效率分别为32.7%、25.9%、35.0%;水稻产量与土壤有机碳含量显著直线正相关。双季稻种植模式下,施肥与不施肥处理土壤碳含量和储量均呈上升趋势;化肥与有机肥配施显著提高固碳效率;有机碳含量与水稻产量间显著正相关。

关键词: 红壤性水稻土, 有机碳含量, 有机碳储量, 碳投入, 固碳效率

Abstract:

The study aims to identify the relationship between carbon input and carbon storage/carbon content and yields, and the difference of carbon sequestration efficiency of different fertilization tests under long-term fertilization in red paddy soil. The data of rice yield, soil organic carbon content, soil organic carbon reserves and rice yield under different fertilization for a long time were measured by using the method of continuous monitoring. Results showed that soil organic carbon content of all treatments increased, after 37 years, soil organic carbon content of NPKM was 30.5%, 23.4% and 24.7% higher than that of CK, NPK and NPK2, respectively. The storage of organic carbon increased significantly with the increase of carbon input. The carbon sequestration efficiency of NPK, NPK2 and NPKM treatment was 32.7%, 25.9% and 35.0%, respectively. There was a significantly linear positive correlation between rice yield and soil organic carbon content. Soil carbon content and carbon storage of CK and all fertilization tests were on the rise under double-rice planting mode. Carbon sequestration efficiency was improved significantly when chemical fertilizer was combined with organic fertilizer. There was a significantly positive correlation between organic carbon content and rice yield.

Key words: red paddy soil, organic carbon content, organic carbon stock, carbon input, efficiency of carbon sequestration

中图分类号:

S151.9+3

叶会财, 李大明, 胡志华, 胡丹丹, 宋惠洁, 万长艳, 胡惠文, 柳开楼. 长期施肥下红壤性水稻土固碳效应特征[J]. 中国农学通报, 2021, 37(2): 61-66.

Ye Huicai, Li Daming, Hu Zhihua, Hu Dandan, Song Huijie, Wan Changyan, Hu Huiwen, Liu Kailou. Carbon Sequestration Characteristics of Red Paddy Soil Under Long-term Fertilization[J]. Chinese Agricultural Science Bulletin, 2021, 37(2): 61-66.

图/表 7

参考文献 27

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处理	施肥量/[kg/(hm²·a)]
处理	N	P₂O₅	K₂O	紫云英	猪粪
NPK	180	90	150
NPK2	360	180	300
NPKM	180	90	150	22500	22500
CK	0	0	0

处理	施肥量/[kg/(hm²·a)]
处理	N	P₂O₅	K₂O	紫云英	猪粪
NPK	180	90	150
NPK2	360	180	300
NPKM	180	90	150	22500	22500
CK	0	0	0

处理	SOC_stock/(t/hm²)		固碳速率/[t/(hm²·a)]
处理	试验前	37年后	固碳速率/[t/(hm²·a)]
NPK	33.6	40.1	0.078
NPK2	33.6	40.8	0.095
NPKM	33.6	46.3	0.245
CK	33.6	37.2

处理	SOC_stock/(t/hm²)		固碳速率/[t/(hm²·a)]
处理	试验前	37年后	固碳速率/[t/(hm²·a)]
NPK	33.6	40.1	0.078
NPK2	33.6	40.8	0.095
NPKM	33.6	46.3	0.245
CK	33.6	37.2

长期施肥下红壤性水稻土固碳效应特征

Carbon Sequestration Characteristics of Red Paddy Soil Under Long-term Fertilization

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