Journal of Geographical Sciences ›› 2019, Vol. 29 ›› Issue (7): 1179-1192.doi: 10.1007/s11442-019-1652-8
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Lifang CHEN1(), Qun DOU2, Zhiming ZHANG3, Zehao SHEN1,*(
)
Received:
2018-05-10
Accepted:
2019-01-22
Online:
2019-07-25
Published:
2019-07-25
Contact:
Zehao SHEN
E-mail:chenlf0915@pku.edu.cn;shzh@pku.edu.cn
About author:
Author: Chen Lifang, graduate student of landscape ecology. E-mail:
Supported by:
Lifang CHEN, Qun DOU, Zhiming ZHANG, Zehao SHEN. Moisture content variations in soil and plant of post-fire regenerating forests in central Yunnan Plateau, Southwest China[J].Journal of Geographical Sciences, 2019, 29(7): 1179-1192.
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Figure 1
Geographical location and climatic features of the burned sites in central Yunnan Plateau: a) Location of the study area and the burned sites of 1, 2, 5, 11 and 30 years-since-last-fire (YSF); b) monthly mean precipitation and temperature in Qinfeng County; and c) monthly frequency distribution of fire records from 2003-2012"
Table 1
The variations of moisture contents in the branches and leaves of trees in three growth forms with regard to YSF, season, and topographic position, in central Yunnan Plateau. Superscript character indicates the difference among values for different levels of each predictive factor. DB, deciduous broad-leaved species; EB, evergreen broad-leaved species; EC, evergreen coniferous species; South, south slope; North, north slope."
Plant tissue | Branch (%) | Leaf (%) | ||||||
---|---|---|---|---|---|---|---|---|
Growth form | DB | EB | EC | DB | EB | EC | ||
YSF | 1st | 60.8b±8.5 | 57.7d±8.8 | 61.3cd±7.9 | 60.0c±8.2 | 59.0b±8.5 | 66.3d±8.1 | |
2nd | 57.7b±8.3 | 53.3c±8.5 | 61.7d±8.9 | 59.1b±8.2 | 54.7a±8.6 | 63.6c±8.5 | ||
5th | 50.5a±7.7 | 49.5b±7.3 | 57.9bc±7.8 | 54.6a±7.6 | 55.4a±7.5 | 57.2b±7.4 | ||
11th | 50.0a±8.1 | 47.5a±6.9 | 56.7ab±8.5 | 57.9b±8.9 | 55.2a±7.1 | 59.8a±7.9 | ||
30th | 51.6a±7.8 | 50.6b±7.7 | 54.3a±7.9 | 57.0b±7.3 | 58.9b±8.1 | 60.8a±6.9 | ||
Season | Spring | 62.1d±8.5 | 59.7c±8.8 | 67.7c±7.9 | 67.3c±8.2 | 62.9c±8.5 | 62.7c±8.1 | |
Summer | 56.2c±8.2 | 54.0b±8.1 | 60.1b±7.8 | 55.3b±7.4 | 55.1b±7.7 | 61.1b±76 | ||
Autumn | 53.1b±8.2 | 53.4b±7.8 | 59.6b±8.3 | 54.0b±8.8 | 55.8b±7.2 | 61.3b±8.3 | ||
Winter | 38.3a±7.4 | 36.6a±7.0 | 40.1a±7.0 | 51.3a±7.2 | 52.4a±7.0 | 58.1a±7.5 | ||
Topographic feature | North | 52.9a±8.5 | 51.8bc±8.8 | 58.3a±7.9 | 57.2a±8.2 | 57.3b±8.5 | 61.8b±8.1 | |
South | 53.5a±8.9 | 49.6a±8.4 | 57.9a±8.3 | 58.1a±9.1 | 55.2a±8.7 | 60.8ab±8.3 | ||
Top | 53.3a±8.4 | 50.6ab±8.6 | 57.0a±8.1 | 57.5a±8.2 | 55.0a±8.4 | 60.2a±8.6 | ||
Valley | 53.7a±8.6 | 52.7c±8.7 | 59.4a±8.4 | 56.8a±8.3 | 58.2b±8.8 | 61.3ab±8.7 |
Figure 4
Branch (a) and leaf (b) moisture content of 18 plant species in central Yunnan Plateau. C.re, Camellia reticulata; C.or, Castanopsis orthacantha; C.de, Cyclobalanopsis delavayi; C.gl, C. glaucoides; K.ev, K. evelyniana; L.de, L. dealbatus; L.li, L. litseifolius; L.ov, Lyonia ovalifolia; M.yu, Michelia yunnanensis; M.na, M. nana; M.ru, M. rubra; P.yu, P. yunnanensis; Q.fa, Q. fabrei; Q.aq, Q. aquifolioides; Q.ac, Q. acutissima; R.mi, Rhododendron microphyton; R.ar, R. araiophyllum; T.gy, Ternstroemia gymnanthera"
Figure 5
Hierarchical partition of moisture variation in (a) soil and (b) post-fire regenerated plant tissues in central Yunnan Plateau, based on GLM analysis (type includes three growth-forms covering DB, EB and EC, as indicated in the text, * means difference is statistically significant)."
Table 2
Hierarchical variation partitioning for PMC of three growth-forms and two types of plant tissue in central Yunnan Plateau. DB, deciduous broad-leaved; EB, evergreen broad-leaved; EC, evergreen coniferous. Indep., independent effect (%); Joint, joint effect (%). SMC, soil moisture content; Tsoil, temperature of surface soil."
Exp. variable | DB | EB | EC | Branch | Leaf | |||||
---|---|---|---|---|---|---|---|---|---|---|
Indep. | Joint | Indep. | Joint | Indep. | Joint | Indep. | Joint | Indep. | Joint | |
Plant tissue | 3.74 | 0.00 | 6.85 | 0.00 | 2.29 | 0.00 | — | — | — | — |
Growth-form | — | — | — | — | — | — | 3.55 | 0.06 | 4.35 | 0.40 |
Season | 25.91 | 15.89 | 19.57 | 9.99 | 15.51 | 11.92 | 13.30 | 3.86 | 27.93 | 20.19 |
Slope position | 1.17 | -1.09 | 2.60 | -1.15 | 1.82 | -1.37 | 1.24 | -0.60 | 2.57 | -2.33 |
YSF | 0.69 | 0.49 | 0.17 | -0.16 | 1.17 | 1.18 | 0.52 | -0.26 | 1.12 | 0.73 |
SMC | 3.88 | 5.58 | 1.23 | 0.63 | 2.43 | 3.29 | 0.81 | 0.18 | 3.10 | 4.62 |
Tsoil | 11.35 | 12.78 | 7.48 | 6.46 | 9.82 | 9.15 | 2.76 | 1.85 | 17.49 | 15.95 |
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