干旱区生态环境知识资源中心(Arid): 生物炭添加对半干旱地区土壤温室气体排放的影响

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	生物炭添加对半干旱地区土壤温室气体排放的影响
其他题名	Effect of Biochar on Soil Greenhouse Gas Emissions in Semi-arid Region
	郭艳亮; 王丹丹; 郑纪勇; 赵世伟; 张兴昌
来源期刊	环境科学
ISSN	0250-3301
出版年	2015
卷号	36 期号:9 页码:3393-3400
中文摘要	为确定生物炭添加对半干旱地区农田土壤温室气体释放的影响,采用小区定位试验,利用锯末(J)和槐树皮(H)及3种添加比例(1%、 3%、 5%,质量百分比),研究了生物炭添加6个月内表层土壤 CO_2、 CH_4和 N_2O等3种温室气体排放的动态变化. 结果表明,与对照相比,各处理土壤 CO_2排放通量随生物炭的添加呈现增加的趋势,锯末和槐树皮等两种生物炭处理的土壤 CO_2平均排放通量分别增加了1.89%和3.34%,但差异不显著. CH_4排放随着生物炭添加量的增加而降低,各生物炭处理的土壤表层 CH_4排放量平均降幅分别为: J1: 1.17%、 J3: 2.55%、 J5: 4.32%、 H1: 2.35%、 H3: 5.83%、 H5: 7.32%. 其中,锯末生物炭仅在5%添加量时较对照差异显著(P<0.05),而槐树皮生物炭处理在3%和5%的添加量与对照差异均达显著水平(P<0.05). 生物炭对 N_2O的排放影响没有明显规律性. 研究表明,生物炭在短期内对半干旱地区农田土壤 CO_2和 N_2O的排放没有显著影响,而对 CH_4排放则影响显著(P<0.05). 就生物炭类型而言,槐树皮生物炭在抑制 CH_4排放方面优于锯末生物炭,差异显著(P=0.048).
英文摘要	This study aimed to investigate the effects of biochar addition on the emission of greenhouse gases from farmland soil in semi-arid region. Through an in-situ experiments, the influence of sawdust biochar(J) and locust tree skin biochar(H) at three doses (1%, 3%, and 5% of quality percentage) on CO_2, CH_4 and N_2O emissions were studied within the six months in the south of Ningxia province. The results indicated that soil CO_2 emission flux was slightly increased with the addition doses for both biochars, and the averaged CO_2 emission flux for sawdust and locust tree skin biochar was enhanced by 1.89% and 3.34% compared to the control, but the difference between treatments was not statistically significant. The soil CH_4 emission was decreased with the increasing of biochar doses, by 1.17%, 2.55%, 4.32% for J1, J3, J5 and 2.35%, 5.83%, 7.32% for H1, H3, H5, respectively. However, the difference was statistically significant only for J5, H3 and H5 treatments (P<0.05). Across addition doses, there was no apparent effect on soil N_2O emission. Our study indicated that the biochar has no significant influence on soil CO_2 and N_2O emissions within six months in semi-arid region and can significantly influence soil CH_4 emissions(P<0.05). As for biochar type, the locust tree skin biochar is significantly better than the sawdust biochar in terms of restraining CH_4 emission(P=0.048).
中文关键词	半干旱区 ; 生物炭 ; 土壤呼吸 ; 温室气体 ; 定位研究
英文关键词	semi-arid region biochar soil respiration greenhouse gases positioning study
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5502395
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232914
作者单位	郭艳亮, 西北农林科技大学资源环境学院, 杨凌, 712100.; 王丹丹, 西北农林科技大学资源环境学院, 杨凌, 712100.; 郑纪勇, 西北农林科技大学资源环境学院, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨凌, 712100.; 赵世伟, 西北农林科技大学资源环境学院, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨凌, 712100.; 张兴昌, 西北农林科技大学资源环境学院, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨凌, 712100.
推荐引用方式 GB/T 7714	郭艳亮,王丹丹,郑纪勇,等. 生物炭添加对半干旱地区土壤温室气体排放的影响[J]. 西北农林科技大学,2015,36(9):3393-3400.
APA	郭艳亮,王丹丹,郑纪勇,赵世伟,&张兴昌.(2015).生物炭添加对半干旱地区土壤温室气体排放的影响.环境科学,36(9),3393-3400.
MLA	郭艳亮,et al."生物炭添加对半干旱地区土壤温室气体排放的影响".环境科学 36.9(2015):3393-3400.