Aerobic methane emission from plant: comparative study of different communities and plant species of alpine meadow

NWIPB OpenIR

	Aerobic methane emission from plant: comparative study of different communities and plant species of alpine meadow
	Guo, XW ; Du, YG ; Li, J ; Liu, SL ; Han, DR ; Li, YK ; Lin, L ; Zhang, FW ; Oyang, JZ ; Cao, GM ; Cao, GM (reprint author), Chinese Acad Sci, Key Lab Adaptat & Evolut Plateau Biota, Northwest Inst Plateau Biol, 59 Xiguan St, Xining 810008, Qinghai, Peoples R China.
	2015
发表期刊	POLISH JOURNAL OF ECOLOGY
摘要	This study was aimed at qualifying the methane emission ability of different communities in alpine meadow, and monitoring if the dominant species from these communities could emit methane in a sand culture experiment. Using the static chamber technique and gas chromatography method, two experiments were conducted in the field and in laboratory. First, the methane flux rate was measured in plant communities: natural alpine meadows (NM), Elymus nutans pasture (EP), herbaceous community in shrub (HS), and a Poa fruticosa meadow (PS). A 3-month sand culture experiment was conducted to show the non-microbial methane emission from living plants. Average methane emission rates were estimated to be 16.83 mu g m(-2) h(-1)(range -49.3-107.8), 28.49 mu g m(-2) h(-1) (range -55.0-96.2) and 20.91 mu g m(-2) h(-1)(range -31.9-145.8) for NM, EP, and PS, respectively. Methane emission rate from EP was significantly higher than from NM during the growing season. The reclaim of grassland would enhance the methane emission in this aera through this one year's measurement, but whether this conclusion suit to the whole Tibet Plateau, it remains further longer time and larger spatial scale experiments to verify it. The result of the sand culture experiment showed that some plant species emitted methane in an aerobic, non-microbial environment, most of herbaceous species showed a methane emission characteristic, the methane emission from plant may have a species dependent characteristic.; This study was aimed at qualifying the methane emission ability of different communities in alpine meadow, and monitoring if the dominant species from these communities could emit methane in a sand culture experiment. Using the static chamber technique and gas chromatography method, two experiments were conducted in the field and in laboratory. First, the methane flux rate was measured in plant communities: natural alpine meadows (NM), Elymus nutans pasture (EP), herbaceous community in shrub (HS), and a Poa fruticosa meadow (PS). A 3-month sand culture experiment was conducted to show the non-microbial methane emission from living plants. Average methane emission rates were estimated to be 16.83 mu g m(-2) h(-1)(range -49.3-107.8), 28.49 mu g m(-2) h(-1) (range -55.0-96.2) and 20.91 mu g m(-2) h(-1)(range -31.9-145.8) for NM, EP, and PS, respectively. Methane emission rate from EP was significantly higher than from NM during the growing season. The reclaim of grassland would enhance the methane emission in this aera through this one year's measurement, but whether this conclusion suit to the whole Tibet Plateau, it remains further longer time and larger spatial scale experiments to verify it. The result of the sand culture experiment showed that some plant species emitted methane in an aerobic, non-microbial environment, most of herbaceous species showed a methane emission characteristic, the methane emission from plant may have a species dependent characteristic.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/42738
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Guo, XW,Du, YG,Li, J,et al. Aerobic methane emission from plant: comparative study of different communities and plant species of alpine meadow[J]. POLISH JOURNAL OF ECOLOGY,2015.
APA	Guo, XW.,Du, YG.,Li, J.,Liu, SL.,Han, DR.,...&Cao, GM .(2015).Aerobic methane emission from plant: comparative study of different communities and plant species of alpine meadow.POLISH JOURNAL OF ECOLOGY.
MLA	Guo, XW,et al."Aerobic methane emission from plant: comparative study of different communities and plant species of alpine meadow".POLISH JOURNAL OF ECOLOGY (2015).