干旱区生态环境知识资源中心(Arid): 氮磷添加下施用保水剂对油茶林土壤氧化亚氮排放的影响

Arid

	氮磷添加下施用保水剂对油茶林土壤氧化亚氮排放的影响
其他题名	Effects of water-retaining agent on soil nitrous oxide emission in Camellia oleifera forest under nitrogen and phosphorus addition
	高宇; 王佰慧; 邹瑜; 王书丽; 向蒗; 付艳秋; 胡冬南; 郭晓敏; 张令
来源期刊	浙江农林大学学报
ISSN	2095-0756
出版年	2021
卷号	38 期号:5 页码:937-944
中文摘要	【目的】化肥施用导致土壤氧化亚氮(N_2O)排放增加,加剧了全球气候变化。在干旱和降水分配不均地区,土壤含水量是影响土壤N_2O排放的关键因子,施用保水剂(如聚丙烯酰胺)可能影响土壤N_2O排放。本研究目的是探究氮(N)与磷(P)肥添加下施用聚丙烯酰胺对土壤N_2O排放的影响。【方法】以油茶Camellia oleifera林土壤为研究对象,设置不同处理,包括不同肥料添加[N、P、N+P、不施肥(ck)],不同聚丙烯酰胺用量(C_0:0 g·kg~(-1),C_1:1.0 g·kg~(-1),C_2: 2.0 g·kg~(-1))以及两者交互处理,利用静态箱-气相色谱法测定油茶苗生长期内土壤N_2O排放。【结果】①施用聚丙烯酰胺显著提高了油茶林土壤含水量(P<0.05),且土壤含水量随保水剂施用量的增加而增加。与C_0相比,C_1和C_2土壤的含水量分别增加47.1%和57.4%,但施用聚丙烯酰胺不会促进土壤N_2O排放(F=2.75,P>0.05)。②施磷肥显著提高土壤N_2O累积排放量(P<0.05),相较于ck增加13.3%。③与只添加聚丙烯酰胺的土壤相比,1.0 g·kg~(-1)聚丙烯酰胺分别与N、P、N+P肥混施处理的土壤N_2O排放通量分别显著增加56.0%、61.7%、40.7%(P<0.05);2.0 g·kg~(-1)聚丙烯酰胺与P、N+P肥混施处理的土壤N_2O排放通量分别显著增加38.7%、58.1%(P<0.05)。【结论】施用聚丙烯酰胺不仅能有效提高油茶土壤保水能力,而且还不会促进油茶土壤N_2O排放,有利于发展高效节水林业和缓解全球气候变化。
英文摘要	[Objective] The application of chemical fertilizer accelerates soil nitrous oxide (N_2O) emission and intensifies global climate change. Soil moisture content is a key factor affecting soil N_2O emission in arid and uneven rainfall distribution areas, so the application of water retaining agent (such as polyacrylamide) affects soil N_2O emission. The purpose of this study is to explore the effect of polyacrylamid on soil N_2O emission under the application of N and P fertilizer. [Method] Taking Camellia oleifera forest soil as the research object, different treatments were set, including different fertilizer additions (N, P, N+P, ck), different polyacrylamide dosage (C_0: 0 g·kg~(-1), C_1: 1.0 g·kg~(-1), C_2: 2.0 g·kg~(-1)) and their interaction. The soil N_2O emission during the growth of C. oleifera seedlings was determined by static chamber gas chromatography. [Result] (1) The application of polyacrylamide significantly increased the soil moisture content of C. oleifera (P<0.05), which increased with the increase of the application amount. Compared with C_0, the soil moisture content of C_1 and C_2 increased by 47.1% and 57.4% respectively, but the application of polyacrylamide did not promote soil N_2O emission (F=2.75, P> 0.05). (2) The application of P fertilizer significantly increased the cumulative soil N_2O emission (P<0.05), which increased by 13.3% compared with ck. (3) Compared with the soil supplemented only with polyacrylamide, the N_2O emission fluxes of soil treated with 1.0 g·kg~(-1) polyacrylamide and N, P, N+P fertilizer increased significantly by 56.0%, 61.7%, and 40.7%, respectively (P< 0.05). The N_2O emission fluxes of soil treated with 2.0 g·kg~(-1) polyacrylamide and P, N+P fertilizer increased significantly by 38.7% and 58.1%, respectively. [Conclusion] The application of polyacrylamide in C.oleifera soil can effectively improve soil water holding capacity, but will not promote soil N_2O emission, which is conducive to the development of efficient water-saving forestry and the mitigation of global climate change.
中文关键词	聚丙烯酰胺 ; 氮磷肥 ; 油茶 ; 氧化亚氮 ; 土壤含水量
英文关键词	polyacrylamide nitrogen and phosphorus fertilizer Camellia oleifera nitrous oxide soil moisture content
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Forestry
CSCD记录号	CSCD:7100359
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378042
作者单位	高宇, 江西农业大学林学院, 江西省森林培育重点实验室, 南昌, 江西 330045, 中国.; 王佰慧, 江西农业大学林学院, 江西省森林培育重点实验室, 南昌, 江西 330045, 中国.; 邹瑜, 江西农业大学林学院, 江西省森林培育重点实验室, 南昌, 江西 330045, 中国.; 王书丽, 江西农业大学林学院, 江西省森林培育重点实验室, 南昌, 江西 330045, 中国.; 向蒗, 江西农业大学林学院, 江西省森林培育重点实验室, 南昌, 江西 330045, 中国.; 胡冬南, 江西农业大学林学院, 江西省森林培育重点实验室, 南昌, 江西 330045, 中国.; 郭晓敏, 江西农业大学林学院, 江西省森林培育重点实验室, 南昌, 江西 330045, 中国.; 张令, 江西农业大学林学院, 江西省森林培育重点实验室, 南昌, 江西 330045, 中国.; 付艳秋, 赤峰市农牧业综合行政执法支队, 赤峰, 内蒙古 024000, 中国.
推荐引用方式 GB/T 7714	高宇,王佰慧,邹瑜,等. 氮磷添加下施用保水剂对油茶林土壤氧化亚氮排放的影响[J],2021,38(5):937-944.
APA	高宇.,王佰慧.,邹瑜.,王书丽.,向蒗.,...&张令.(2021).氮磷添加下施用保水剂对油茶林土壤氧化亚氮排放的影响.浙江农林大学学报,38(5),937-944.
MLA	高宇,et al."氮磷添加下施用保水剂对油茶林土壤氧化亚氮排放的影响".浙江农林大学学报 38.5(2021):937-944.