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DOI:	10.1371/journal.pone.0102344
论文题名:	Relationships of Biomass with Environmental Factors in the Grassland Area of Hulunbuir, China
作者:	Miao Liu; Guohua Liu; Li Gong; Dongbo Wang; Jian Sun
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-7-17
卷:	9, 期:7
语种:	英语
英文关键词:	Biomass (ecology) ; Grasslands ; Ecosystems ; Rain ; Chemical precipitation ; Ecosystem functioning ; Decision trees ; Plant growth and development
英文摘要:	Many studies have focused on the relationship between vegetation biomass and environmental factors in grassland. However, several questions remain to be answered, especially with regards to the spatial pattern of vegetation biomass. Thus, the distributed mechanism will be explored in the present study. Here, plant biomass was measured at 23 sites along a transect survey during the peak growing season in 2006. The data were analyzed with a classification and regression tree (CART) model. The structural equation modeling (SEM) was conducted to explicitly evaluate the both direct and indirect effects of these critical environmental elements on vegetation biomass. The results demonstrated that mean annual temperature (MAT) affected aboveground biomass (AGB) scored at −0.811 (P<0.05). The direct effect of MAT on belowground biomass (BGB) was −0.490 (P<0.05). The results were determined by SEM. Our results indicate that AGB and BGB in semi-arid ecosystems is strongly affected by precipitation and temperature. Future work shall attempt to take into account the integrated effects of precipitation and temperature. Meanwhile, partitioning the influences of environmental variations and vegetation types are helpful in illuminating the internal mechanism of biomass distribution.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0102344&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18663
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
10.1371journal.pone.0102344.PDF（730KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, China;University of Chinese Academy of Sciences, Beijing, China;State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, China;State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing, China;University of Chinese Academy of Sciences, Beijing, China;Monitoring Station for Eco-environment of Hulunbuir, Hulunbuir, China;Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

Recommended Citation:

Miao Liu,Guohua Liu,Li Gong,et al. Relationships of Biomass with Environmental Factors in the Grassland Area of Hulunbuir, China[J]. PLOS ONE,2014-01-01,9(7)

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