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METHANE EMISSION FROM A USUALLY WELL-DRAINED PRAIRIE SOIL AFTER SNOWMELT AND PRECIPITATION
被引：24
作者：
WANG, FL
BETTANY, JR
机构：
关键词：
METHANE EMISSION;
SPRING SNOWMELT;
SHORT-TERM FLOODING;
D O I：
10.4141/cjss95-033
中图分类号：
S15 [土壤学];
学科分类号：
0903 ;
090301 ;
摘要：
Usually well-drained soils, when they are flooded periodically, are a sporadic source for greenhouse gases such as methane. Using a static chamber technique in the field, we found methane emission, which ranged from 7.8 (cultivated site) to 10.5 mg m(-2) d(-1) (grassland site), from the lower slope positions after snowmelt in the spring. Smaller methane emission was also observed after rainfall in the summer: 0.02-0.64 mg m(2) d(-1) after 23-79 mm of precipitation.
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页码：239 / 241
页数：3
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