caa a22 4500 606220348 CHVBK 20210128101123.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s11104-015-2479-4 doi (NATIONALLICENCE)springer-10.1007/s11104-015-2479-4 The effects of forest gaps on cellulose degradation in the foliar litter of two shrub species in an alpine fir forest [Elektronische Daten] [Wei He, Fuzhong Wu, Danju Zhang, Wanqin Yang, Bo Tan, Yeyi Zhao, Qiqian Wu] Aims: Forest gap manipulates the hydrothermal dynamics of the forest floor, creating heterogeneous microenvironments and controlling understory ecosystem processes. However, how the heterogeneity in environments from the gap center to the adjacent closed canopy affects foliar litter cellulose degradation is poorly understood. Methods: Litterbags were used to examine the cellulose degradation over a 734-day period for the litter of two dominant shrubs from the gap center to the closed canopy in three alpine forest gaps of the eastern Qinghai-Tibet Plateau. Results: The cellulose degradation of the two foliar litter species decreased from the gap center to the closed canopy during the two winters, the first year, the second year and the entire 2years, whereas this trend reversed in the two growing seasons. Cellulose degradation of both litter species in the first winter and in the first year accounted for approximately 50 and 70% of the 2years of degradation, respectively. This degradation was positively related to average daily temperature and microbial biomass carbon but negatively related to the frequency of the freeze-thaw cycle. Conclusions: Forest gaps promote the wintertime and annual cellulose degradation during shrub-litter decomposition. Moreover, reduced snow cover during gap vanishing as forests are regenerated or during winter warming may inhibit shrub litter cellulose degradation in high-latitude and -altitude ecosystems. Springer International Publishing Switzerland, 2015 Alpine forest nationallicence Cellulose degradation nationallicence Forest gap nationallicence Shrub foliar litter nationallicence Snow cover nationallicence AT : Average temperature nationallicence FFTC : Frequency of the freeze-thaw cycle nationallicence MANOVA : Multivariate analysis of variance nationallicence LOESS : Locally weighted scatterplot smoothing nationallicence SF1 : The first snow-formation period nationallicence SC1 : The first snow-cover period nationallicence ST1 : The first snow-melting period nationallicence EG1 : The first early growing season nationallicence LG1 : The first later growing season nationallicence SF2 : The second snow-formation period nationallicence SC2 : The second snow-cover period nationallicence ST2 : The second snow-melting period nationallicence EG2 : The second early growing season nationallicence LG2 : The second later growing season nationallicence He Wei Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut Wu Fuzhong Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut Zhang Danju Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut Yang Wanqin Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut Tan Bo Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut Zhao Yeyi Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut Wu Qiqian Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut Plant and Soil Springer International Publishing 393/1-2(2015-08-01), 109-122 0032-079X 393:1-2<109 2015 393 11104 https://doi.org/10.1007/s11104-015-2479-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-015-2479-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- He Wei Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut NATIONALLICENCE 700 1- Wu Fuzhong Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut NATIONALLICENCE 700 1- Zhang Danju Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut NATIONALLICENCE 700 1- Yang Wanqin Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut NATIONALLICENCE 700 1- Tan Bo Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut NATIONALLICENCE 700 1- Zhao Yeyi Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut NATIONALLICENCE 700 1- Wu Qiqian Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology & Forestry, Sichuan Agricultural University, 611130, Chengdu, China aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 393/1-2(2015-08-01), 109-122 0032-079X 393:1-2<109 2015 393 11104