NWIPB OpenIR
Effects of litter quality and climate change along an elevation gradient on litter mass loss in an alpine meadow ecosystem on the Tibetan plateau
Xu, Guangping2,3; Hu, Yigang2,3; Wang, Shiping1,2; Zhang, Zhenhua2,3; Chang, Xiaofeng2,3; Duan, Jichuang2,3; Luo, Caiyun2,3; Chao, Zengguo2,3; Su, Ailing2,3; Lin, Qiaoyan2,3; Li, Yingnian2; Du, Mingyuan4
2010-08-01
发表期刊PLANT ECOLOGY
ISSN1385-0237
卷号209期号:2页码:257-268
文章类型Article
摘要Knowledge of the response of litter mass loss to climate warming and litter quality in alpine ecosystems is still sparse. Here, we conducted a 507-day litter decomposition experiment along an elevation gradient from 3200 to 3800 m using different litter types to determine the influences of litter quality and climate change on the elemental mass losses and on the temperature sensitivity of litter mass losses (annual percentage decomposition (%) per 1A degrees C temperature difference). Mass losses of C, nitrogen (N), phosphorus (P), potassium (K), sodium (Na), calcium (Ca), and Magnesium (Mg) decreased with an increase in elevation. In general, N and Na concentrations in litter and ratios of C:N and lignin:N were the best predictors of C mass losses. A higher N concentration and C:N ratio in litter caused greater C mass losses, but higher lignin:N ratio in litter resulted in lower C mass losses. Litter decomposition occurred in a two-stage process. Carbon mass loss in litter was mainly limited by soil temperature in the first growing season of the decomposition period, whereas N concentration and ratios of C:P and N:P limited carbon mass loss in the remaining litter during the second growing season of the decomposition period. Soil moisture appeared not to affect litter mass loss and the temperature sensitivity of litter mass loss of grass litter was greater than that of shrub litter in the alpine region.; Knowledge of the response of litter mass loss to climate warming and litter quality in alpine ecosystems is still sparse. Here, we conducted a 507-day litter decomposition experiment along an elevation gradient from 3200 to 3800 m using different litter types to determine the influences of litter quality and climate change on the elemental mass losses and on the temperature sensitivity of litter mass losses (annual percentage decomposition (%) per 1A degrees C temperature difference). Mass losses of C, nitrogen (N), phosphorus (P), potassium (K), sodium (Na), calcium (Ca), and Magnesium (Mg) decreased with an increase in elevation. In general, N and Na concentrations in litter and ratios of C:N and lignin:N were the best predictors of C mass losses. A higher N concentration and C:N ratio in litter caused greater C mass losses, but higher lignin:N ratio in litter resulted in lower C mass losses. Litter decomposition occurred in a two-stage process. Carbon mass loss in litter was mainly limited by soil temperature in the first growing season of the decomposition period, whereas N concentration and ratios of C:P and N:P limited carbon mass loss in the remaining litter during the second growing season of the decomposition period. Soil moisture appeared not to affect litter mass loss and the temperature sensitivity of litter mass loss of grass litter was greater than that of shrub litter in the alpine region.
关键词Litter Quality Mass Loss Soil Temperature Soil Moisture Elevation Gradient Alpine Meadow
WOS标题词Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]ORGANIC-MATTER DECOMPOSITION ; LEAF-LITTER ; TEMPERATURE-DEPENDENCE ; LIGNIN CONTROL ; NEEDLE LITTER ; FOREST LITTER ; ICE CORES ; NITROGEN ; RATES ; SENSITIVITY
收录类别SCI
语种英语
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology ; Forestry
WOS类目Plant Sciences ; Ecology ; Forestry
WOS记录号WOS:000279479500007
引用统计
被引频次:29[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/1666
专题中国科学院西北高原生物研究所
作者单位1.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China
2.Chinese Acad Sci, NW Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
4.Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan
推荐引用方式
GB/T 7714
Xu, Guangping,Hu, Yigang,Wang, Shiping,et al. Effects of litter quality and climate change along an elevation gradient on litter mass loss in an alpine meadow ecosystem on the Tibetan plateau[J]. PLANT ECOLOGY,2010,209(2):257-268.
APA Xu, Guangping.,Hu, Yigang.,Wang, Shiping.,Zhang, Zhenhua.,Chang, Xiaofeng.,...&Du, Mingyuan.(2010).Effects of litter quality and climate change along an elevation gradient on litter mass loss in an alpine meadow ecosystem on the Tibetan plateau.PLANT ECOLOGY,209(2),257-268.
MLA Xu, Guangping,et al."Effects of litter quality and climate change along an elevation gradient on litter mass loss in an alpine meadow ecosystem on the Tibetan plateau".PLANT ECOLOGY 209.2(2010):257-268.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Xu, Guangping]的文章
[Hu, Yigang]的文章
[Wang, Shiping]的文章
百度学术
百度学术中相似的文章
[Xu, Guangping]的文章
[Hu, Yigang]的文章
[Wang, Shiping]的文章
必应学术
必应学术中相似的文章
[Xu, Guangping]的文章
[Hu, Yigang]的文章
[Wang, Shiping]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。