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Seasonal variation of vegetation productivity over an alpine meadow in the Qinghai-Tibet Plateau in China- modeling the interactions of vegetation productivity, phenology, and the soil freeze-thaw process
Wang, HB (Wang, Haibo)[ 1,2 ]; Ma, MG (Ma, Mingguo)[ 1 ]; Wang, XF (Wang, Xufeng)[ 1,2 ]; Yuan, WP (Yuan, Wenping)[ 3 ]; Song, Y (Song, Yi)[ 4 ]; Tan, JL (Tan, Junlei)[ 1 ]; Huang, GH (Huang, Guanghui)[ 1 ]
2013-03-30
发表期刊ECOLOGICAL RESEARCH
卷号28期号:2页码:271-282
文章类型期刊论文
摘要

Phenology controls the seasonal activities of vegetation on land surfaces and thus plays a fundamental role in regulating photosynthesis and other ecosystem processes. Therefore, accurately simulating phenology and soil processes is critical to ecosystem and climate modeling. In this study, we present an integrated ecosystem model of plant productivity, plant phenology, and the soil freeze-thaw process to (1) improve the quality of simulations of soil thermal regimes and (2) estimate the seasonal variability of plant phenology and its effects on plant productivity in high-altitude seasonal frozen regions. We tested different model configurations and parameterizations, including a refined soil stratification scheme that included unfrozen water in frozen soil, a remotely sensed diagnostic phenology scheme, and a modified prognostic phenology scheme, to describe the seasonal variation in vegetation. After refined soil layering resolution and the inclusion of unfrozen water in frozen soil, the results show that the model adequately reproduced the soil thermal regimes and their interactions observed at the site. The inclusion of unfrozen water in frozen soil was found to have a significant effect on soil moisture simulation during the spring but only a small effect on soil temperature simulation at this site. Moreover, the performance of improved phenology schemes was good. The phenology model accurately predicted the start and end of phenology, and its precise prediction of phenology variation allows an improved simulation of vegetation production.

关键词Alpine Meadow Qinghai–tibet Plateau(Qtp) Unfrozen Water Primary Production Phenology Freezing–thawing Process
DOI10.1007/s11284-012-1015-8
收录类别SCI
语种英语
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10003
专题生态环境研究室
通讯作者Wang, HB (Wang, Haibo)[ 1,2 ]
作者单位1.Cold and Arid Regions Environmental and Engineering ResearchInstitute (CAREERI), Chinese Academy of Sciences,320# West Dong Gang Road, Lanzhou, Gansu 730000, China;
2.Graduate University of Chinese Academy of Sciences,Beijing 100049, China;
3.College of Global Change and Earth System Science,Beijing Normal University, Beijing 100875, China;
4.Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710075, China
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Wang, HB ,Ma, MG ,Wang, XF ,et al. Seasonal variation of vegetation productivity over an alpine meadow in the Qinghai-Tibet Plateau in China- modeling the interactions of vegetation productivity, phenology, and the soil freeze-thaw process[J]. ECOLOGICAL RESEARCH,2013,28(2):271-282.
APA Wang, HB .,Ma, MG .,Wang, XF .,Yuan, WP .,Song, Y .,...&Huang, GH .(2013).Seasonal variation of vegetation productivity over an alpine meadow in the Qinghai-Tibet Plateau in China- modeling the interactions of vegetation productivity, phenology, and the soil freeze-thaw process.ECOLOGICAL RESEARCH,28(2),271-282.
MLA Wang, HB ,et al."Seasonal variation of vegetation productivity over an alpine meadow in the Qinghai-Tibet Plateau in China- modeling the interactions of vegetation productivity, phenology, and the soil freeze-thaw process".ECOLOGICAL RESEARCH 28.2(2013):271-282.
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