EFFECT OF RICE VARIETY ON METHANE EMISSION FROM LOUISIANA RICE

被引：48

作者：

LINDAU, CW ^{[1
]}

BOLLICH, PK ^{[1
]}

DELAUNE, RD ^{[1
]}

机构：

[1] LOUISIANA EXPT STN,RICE RES STN,CROWLEY,LA 70725

来源：

AGRICULTURE ECOSYSTEMS & ENVIRONMENT | 1995年 / 54卷 / 1-2期

关键词：

GREENHOUSE GAS; METHANE; ORYZA-SATIVA; MITIGATION;

D O I：

10.1016/0167-8809(95)00587-I

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

A field experiment was conducted to determine the effect local cultivars of Oryza sativa L. (rice) had on methane evolution from flooded plots. Semidwarf and tall varieties were drill-seeded into a Crowley silt loam (Typic Albaqualf) and methane fluxes were measured twice a week over the first and ratoon cropping seasons. Semidwarf varieties evolved significantly less methane over both growing seasons. Over the main cropping season, semidwarfs emitted an average 185 kg CH4 ha-1 to the atmosphere compared with 300 kg CH4 ha-1 for the tall varieties. During the ratoon sampling season, semidwarf and tall varieties evolved 540 and 830 kg CH4 ha-1, respectively. Compared with tall cultivars, semidwarfs evolved 36% less methane over both seasons.

引用

页码：109 / 114

页数：6

共 16 条

[1]

[Anonymous], 1988, SAS STAT USERS GUIDE

[2]

BATJES NH, 1992, REV SOIL FCATORS PRO, P1

[3]

BOUWMAN AF, 1991, BIOGEOCHEMISTRY, V15, P65

[4]

CICERONE RJ, 1983, J GEOPHYS RES-OCEANS, V88, P1022, DOI 10.1029/JC088iC15p11022