Nitric oxide emission from a typical vegetable field in the Pearl River Delta, China

被引：54

作者：

Li, Dejun ^{[1
]}

Wang, Xinming ^{[1
]}

机构：

[1] Acad Sinica, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China

来源：

ATMOSPHERIC ENVIRONMENT | 2007年 / 41卷 / 40期

关键词：

nitric oxide; emission flux; cropland; China;

D O I：

10.1016/j.atmosenv.2007.08.042

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Croplands contribute to atmospheric nitric oxide (NO), but very limited data are available about NO fluxes from intensively managed croplands in China. In this study, NO fluxes were measured in a typical vegetable field planted with flowering Chinese cabbage (Brassica campestris L. ssp. Chinensis var. utilis Tsen et Lee), which is the most widely cultivated vegetable in Guangdong province, south China. NO emission drastically increased after nitrogen fertilizer application, and other practices involving loosening the soil also enhanced NO emission. Mean NO emission flux was 47.5 ng N m(-2) s(-1) over a complete growth cycle. Annual NO emission from the vegetable field was about 10.1 kg N ha(-1) yr(-1). Fertilizer-induced NO emission factor was estimated to be 2.4%. Total NO emission from vegetable fields in Guangdong province was roughly estimated to be 11.7GgNyr(-1) based on the vegetable field area and annual No emission rate, and to bel 13.3GgNyr(-1) based on fertilizer-induced NO emission factor and background NO emission. This means that NO emission from vegetable fields was approximately 6% of NOx from commercial energy consumption in Guangdong province. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：9498 / 9505

页数：8

共 29 条

[1] Effect of organic matter application on N2O, NO, and NO2 fluxes from an Andisol field -: art. no. 1100 [J].

Akiyama, H ;

Tsuruta, H .

GLOBAL BIOGEOCHEMICAL CYCLES, 2003, 17 (04)

[2] Nitrous oxide, nitric oxide, and nitrogen dioxide fluxes from soils after manure and urea application [J].

Akiyama, H ;

Tsuruta, H .

JOURNAL OF ENVIRONMENTAL QUALITY, 2003, 32 (02) :423-431

[3]

[Anonymous], 2006, INT CONGR SER, DOI DOI 10.1016/J.ICS.2006.02.044

[4]

Bouwman AF, 2002, GLOBAL BIOGEOCHEM CY, V16, DOI [10.1029/2001GB001812, 10.1029/2001GB001811]

[5] A global inventory of nitric oxide emissions from soils [J].

Davidson, EA ;

Kingerlee, W .

NUTRIENT CYCLING IN AGROECOSYSTEMS, 1997, 48 (1-2) :37-50

[6] Global inventory of NOx sources [J].

Delmas, R ;

Serca, D ;

Jambert, C .

NUTRIENT CYCLING IN AGROECOSYSTEMS, 1997, 48 (1-2) :51-60

[7] NOX fluxes from three kinds of agricultural lands in the Yangtze Delta, China [J].

Fang, Shuangxi ;

Mu, Yujing .

ATMOSPHERIC ENVIRONMENT, 2007, 41 (22) :4766-4772

[8] Air/surface exchange of nitric oxide between two typical vegetable lands and the atmosphere in the Yangtze Delta, China [J].

Fang, Shuangxi ;

Mu, Yujing .

ATMOSPHERIC ENVIRONMENT, 2006, 40 (33) :6329-6337

[9]

*GUANGD PROV BUR S, 2006, GUANGD STAT YB

[10] Emission inventories of NOx from commercial energy consumption in China, 1995-1998 [J].

Hao, JM ;

Tian, HZ ;

Lu, YQ .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2002, 36 (04) :552-560

← 1 2 3 →