Carbon dioxide emissions by urban turfgrass areas

被引：34

作者：

Allaire, S. E. ^{[1
]}

Dufour-L'Arrivee, C. ^{[1
]}

Lafond, J. A. ^{[1
]}

Lalancette, R. ^{[1
]}

Brodeur, J. ^{[2
]}

机构：

[1] Univ Laval, Ctr Rech Hort, Laval, PQ G1K 7P4, Canada

[2] Univ Montreal, Inst Rech Biol Vegetale, Montreal, PQ H1X 2B2, Canada

来源：

CANADIAN JOURNAL OF SOIL SCIENCE | 2008年 / 88卷 / 04期

关键词：

Lawns; greenhouse gases; carbon cycle; carbon dioxide; net CO2 exchange;

D O I：

10.4141/CJSS07043

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Allaire, S. E., Dufour-L'Arrivee, C., Lafond, J. A., Lalancette, R. and Brodeur, J. 2008. Carbon dioxide emissions by urban turfgrass areas. Can. J. Soil Sci. 88: 529-532. This research compared four turfgrass lawn management approaches on CO2 emissions: (1) fertilized and frequently mowed with clippings removal, and unfertilized with clippings left on site and mowed 2) weekly, 3) three times, or 4) once during the growing season. CO2 emissions were measured weekly with nux chambers. Mowing frequency had higher impact on CO2 flux than fertilisation and soil characteristics. Frequently mowed sites emitted CO2 at a maximum rate of 0.63 mg m(-2) s(-1) and annually up to 2.0 kg m(-2), an emission four times higher than lawns mowed infrequently. Differences between treatments mostly occurred during warm weeks.

引用

页码：529 / 532

页数：4

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