Chin J Plant Ecol ›› 2010, Vol. 34 ›› Issue (5): 611-618.DOI: 10.3773/j.issn.1005-264x.2010.05.015
• Research Communications • Previous Articles
LUO Dong-Hui1, XIA Jing1, YUAN Jing-Wei2,3, ZHANG Zhong-Hua1, ZHU Jie-Dong2,3, NI Jian1,*()
Received:
2009-07-28
Accepted:
2010-01-13
Online:
2010-07-28
Published:
2010-05-01
Contact:
NI Jian
LUO Dong-Hui, XIA Jing, YUAN Jing-Wei, ZHANG Zhong-Hua, ZHU Jie-Dong, NI Jian. Root biomass of karst vegetation in a mountainous area of southwestern China[J]. Chin J Plant Ecol, 2010, 34(5): 611-618.
Fig. 1 The locations of Maolan National Natural Reserve and selected plots. R-CS, rock-stand climax stage; R-HS, rock-stand herb stage; R-HSS, rock-stand herb-scrub stage; R-SCS, rock-stand sub-climax stage; R-SSS, rock-stand scrub stage; S-CS, soil-stand climax stage; S-HS, soil-stand herb stage; S-HSS, soil-stand herb-scrub stage; S-SCS, soil-stand sub-climax stage; S-SSS, soil-stand scrub stage.
恢复阶段 Restoration stage | 经度 Longitude (E) | 纬度 Latitude (N) | 海拔 Altitude (m) | 群落名称 Community name | 平均胸径 Mean diameter at breast height (DBH, cm) | 平均树高 Mean tree height (m) | 密度 Density (No.·hm-2) | 年龄 Stand age (a) |
---|---|---|---|---|---|---|---|---|
R-HS | 107°56.662′ | 25°20.251′ | 925 | 密毛蕨Pteridium revolutum+羊耳菊Inula cappa | 0.3 | 10 | ||
S-HS | 107°58.826′ | 25°20.001′ | 768 | 密毛蕨+金丝草Pogonatherum crinitum | 0.3 | 10 | ||
R-HSS | 107°55.559′ | 25°19.480′ | 907 | 香叶树Lindera communis+青篱柴Tirpitzia sinensis | 1.6* | 1.4 | 2 020 | 8-12 |
S-HSS | 107°58.018′ | 25°18.180′ | 743 | 枫香Liquidambar formosana+长叶冻绿Rhamnus crenata | 1.5* | 1.0 | 1 800 | 8-12 |
R-SSS | 107°55.815′ | 25°18.598′ | 842 | 香叶树+圆果化香Platycarya longipes | 3.8 | 4.0 | 5 600 | 12-18 |
S-SSS | 107°55.800′ | 25°18.610′ | 863 | 香叶树+全缘火棘Pyracantha atalantioides | 3.9 | 4.1 | 4 875 | 13-18 |
R-SCS | 107°57.263′ | 25°18.592′ | 851 | 华南梾木Swida austrosinensis+齿叶黄皮Clausena dunniana | 7.8 | 6.8 | 2 775 | 60-133 |
S-SCS | 107°57.263′ | 25°18.211′ | 711 | 小花梾木Swida parviflora+香叶树 | 8.6 | 6.9 | 1 956 | 25-54 |
R-CS | 107°57.483′ | 25°18.653′ | 860 | 齿叶黄皮+圆果化香 | 8.7 | 7.6 | 2 122 | 80-236 |
S-CS | 107°57.350′ | 25°18.117′ | 925 | 榕叶冬青Ilex ficoidea+西南米槠Castanopsis carlesii var. spinulosa | 9.6 | 8.2 | 2 833 | 60-135 |
Table 1 Location and basic characteristics of the selected plots
恢复阶段 Restoration stage | 经度 Longitude (E) | 纬度 Latitude (N) | 海拔 Altitude (m) | 群落名称 Community name | 平均胸径 Mean diameter at breast height (DBH, cm) | 平均树高 Mean tree height (m) | 密度 Density (No.·hm-2) | 年龄 Stand age (a) |
---|---|---|---|---|---|---|---|---|
R-HS | 107°56.662′ | 25°20.251′ | 925 | 密毛蕨Pteridium revolutum+羊耳菊Inula cappa | 0.3 | 10 | ||
S-HS | 107°58.826′ | 25°20.001′ | 768 | 密毛蕨+金丝草Pogonatherum crinitum | 0.3 | 10 | ||
R-HSS | 107°55.559′ | 25°19.480′ | 907 | 香叶树Lindera communis+青篱柴Tirpitzia sinensis | 1.6* | 1.4 | 2 020 | 8-12 |
S-HSS | 107°58.018′ | 25°18.180′ | 743 | 枫香Liquidambar formosana+长叶冻绿Rhamnus crenata | 1.5* | 1.0 | 1 800 | 8-12 |
R-SSS | 107°55.815′ | 25°18.598′ | 842 | 香叶树+圆果化香Platycarya longipes | 3.8 | 4.0 | 5 600 | 12-18 |
S-SSS | 107°55.800′ | 25°18.610′ | 863 | 香叶树+全缘火棘Pyracantha atalantioides | 3.9 | 4.1 | 4 875 | 13-18 |
R-SCS | 107°57.263′ | 25°18.592′ | 851 | 华南梾木Swida austrosinensis+齿叶黄皮Clausena dunniana | 7.8 | 6.8 | 2 775 | 60-133 |
S-SCS | 107°57.263′ | 25°18.211′ | 711 | 小花梾木Swida parviflora+香叶树 | 8.6 | 6.9 | 1 956 | 25-54 |
R-CS | 107°57.483′ | 25°18.653′ | 860 | 齿叶黄皮+圆果化香 | 8.7 | 7.6 | 2 122 | 80-236 |
S-CS | 107°57.350′ | 25°18.117′ | 925 | 榕叶冬青Ilex ficoidea+西南米槠Castanopsis carlesii var. spinulosa | 9.6 | 8.2 | 2 833 | 60-135 |
Fig. 2 Root biomass (RB) in different vegetation restoration stages (RTS). A, Total root biomass. B, Root biomass in different root diameter-classes. R-CS, R-HS, R-HSS, R-SCS, R-SSS, S-CS, S-HS, S-HSS, S-SCS and S-SSS see Fig. 1.
土壤深度 Soil depth (cm) | S-HS | S-HSS | S-SSS | S-SCS | S-CS |
---|---|---|---|---|---|
< 5 | 2.03 | 4.07 | 6.59 | 4.27 | 51.82 |
5-10 | 0.04 | 1.48 | 3.87 | 6.22 | 4.44 |
10-15 | 0.09 | 1.68 | 4.71 | 1.23 | |
15-20 | 2.02 | 4.17 | |||
> 20 | 2.74 | ||||
合计 Total | 2.07 | 5.64 | 14.16 | 22.11 | 57.49 |
Table 2 Vertical distribution of root biomass (Mg·hm-2) of soil-stand plant communities in different restoration stages
土壤深度 Soil depth (cm) | S-HS | S-HSS | S-SSS | S-SCS | S-CS |
---|---|---|---|---|---|
< 5 | 2.03 | 4.07 | 6.59 | 4.27 | 51.82 |
5-10 | 0.04 | 1.48 | 3.87 | 6.22 | 4.44 |
10-15 | 0.09 | 1.68 | 4.71 | 1.23 | |
15-20 | 2.02 | 4.17 | |||
> 20 | 2.74 | ||||
合计 Total | 2.07 | 5.64 | 14.16 | 22.11 | 57.49 |
土壤深度 Soil depth (cm) | 细根和小根 Fine and small roots | 中根 Medium roots | 粗根 Coarse roots | 不同土层根系生物量 RB in different soil layers | 粗根比例 Ratio of coarse roots (%) |
---|---|---|---|---|---|
< 5 | 4.81 | 4.04 | 42.98 | 51.86 | 82.9 |
5-10 | 0.94 | 1.13 | 2.36 | 4.43 | 53.3 |
10-60 | 0.40 | 0.19 | 0.64 | 1.23 | 52.0 |
总根系生物量 Total RB | 6.15 | 5.36 | 45.98 | 57.52 | 79.9 |
< 10 cm根系生物量比例Ratio of RB < 10 cm (%) | 93.50 | 96.50 | 98.60 | 97.90 |
Table 3 Vertical distribution of root biomass (RB, Mg·hm-2) of soil-stand climax (evergreen-deciduous broad-leaved mixed forest) in different root diameter classes
土壤深度 Soil depth (cm) | 细根和小根 Fine and small roots | 中根 Medium roots | 粗根 Coarse roots | 不同土层根系生物量 RB in different soil layers | 粗根比例 Ratio of coarse roots (%) |
---|---|---|---|---|---|
< 5 | 4.81 | 4.04 | 42.98 | 51.86 | 82.9 |
5-10 | 0.94 | 1.13 | 2.36 | 4.43 | 53.3 |
10-60 | 0.40 | 0.19 | 0.64 | 1.23 | 52.0 |
总根系生物量 Total RB | 6.15 | 5.36 | 45.98 | 57.52 | 79.9 |
< 10 cm根系生物量比例Ratio of RB < 10 cm (%) | 93.50 | 96.50 | 98.60 | 97.90 |
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