Chin J Plant Ecol ›› 2006, Vol. 30 ›› Issue (5): 723-731.DOI: 10.17521/cjpe.2006.0094
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LI Zhen-Xin1,2, OUYANG Zhi-Yun1,*(), ZHENG Hua1, LIU Xing-Liang3, SU Yi-Ming3
Received:
2005-12-12
Accepted:
2006-03-28
Online:
2006-12-12
Published:
2006-09-30
Contact:
OUYANG Zhi-Yun
LI Zhen-Xin, OUYANG Zhi-Yun, ZHENG Hua, LIU Xing-Liang, SU Yi-Ming. COMPARISON OF RAINFALL REDISTRIBUTION IN TWO ECOSYSTEMS IN MINJIANG UPPER CATCHMENTS, CHINA[J]. Chin J Plant Ecol, 2006, 30(5): 723-731.
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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2006.0094
雨强分级Classification of rainfall intensity (mm·h-1) | 0~0.2 | 0.2~0.5 | 0.5~1.0 | 1.0~2.0 | 2.0~5.0 | >5.0 | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
次数Frequency | 10 | 18 | 12 | 10 | 5 | 1 | |||||||||||||||||||
降雨量范围Rrainfall range (mm) | 0.30~3.60 | 0.70~9.00 | 1.90~17.40 | 0.60~25.50 | 3.50~30.60 | 6.10 | |||||||||||||||||||
平均降雨量 Average rainfall (mm) | 1.20 | 3.99 | 8.57 | 10.84 | 13.32 | 6.10 |
Table 1 The rainfall characteristics in Dengsheng from July to Sep., 2001 and June to Aug., 2002
雨强分级Classification of rainfall intensity (mm·h-1) | 0~0.2 | 0.2~0.5 | 0.5~1.0 | 1.0~2.0 | 2.0~5.0 | >5.0 | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
次数Frequency | 10 | 18 | 12 | 10 | 5 | 1 | |||||||||||||||||||
降雨量范围Rrainfall range (mm) | 0.30~3.60 | 0.70~9.00 | 1.90~17.40 | 0.60~25.50 | 3.50~30.60 | 6.10 | |||||||||||||||||||
平均降雨量 Average rainfall (mm) | 1.20 | 3.99 | 8.57 | 10.84 | 13.32 | 6.10 |
气温(℃) Temperature | 最低气温 (℃) Minimum temperature | 最高气温 (℃) Maximum temperature | 相对湿度 (%) Relative humidity | 0 cm地温 (℃) 0 cm Soil temperature | 5 cm地温 (℃) 5 cm Soil temperature | 10 cm地温 (℃) 10 cm Soil temperature | 15 cm地温 (℃) 15 cm Soil temperature | 20 cm地温 (℃) 20 cm Soil temperature | |
---|---|---|---|---|---|---|---|---|---|
林外 Open ground | 12.9 | 6.0 | 25.5 | 77.9 | 16.5 | 15.4 | 15.2 | 14.8 | 14.7 |
针叶林 Conifer forest | 12.4 | 6.0 | 22.0 | 83.8 | 12.4 | 11.4 | 11.0 | 10.8 | 10.7 |
灌丛 Shrub | 12.8 | 6.0 | 28.0 | 79.7 | 13.3 | 12.0 | 11.7 | 11.8 | 11.8 |
Table 2 Comparison of microclimate of conifer forest, shrub and open ground
气温(℃) Temperature | 最低气温 (℃) Minimum temperature | 最高气温 (℃) Maximum temperature | 相对湿度 (%) Relative humidity | 0 cm地温 (℃) 0 cm Soil temperature | 5 cm地温 (℃) 5 cm Soil temperature | 10 cm地温 (℃) 10 cm Soil temperature | 15 cm地温 (℃) 15 cm Soil temperature | 20 cm地温 (℃) 20 cm Soil temperature | |
---|---|---|---|---|---|---|---|---|---|
林外 Open ground | 12.9 | 6.0 | 25.5 | 77.9 | 16.5 | 15.4 | 15.2 | 14.8 | 14.7 |
针叶林 Conifer forest | 12.4 | 6.0 | 22.0 | 83.8 | 12.4 | 11.4 | 11.0 | 10.8 | 10.7 |
灌丛 Shrub | 12.8 | 6.0 | 28.0 | 79.7 | 13.3 | 12.0 | 11.7 | 11.8 | 11.8 |
Pearson相关分析 Pearson correlation | 冠层截留 Interception of rainfall by canopy (I) | 降雨量 Rainfall (R) | 雨强 Rainfall intensity (RI) | 持续时间 Duration of the rainfall (DA) | 间隔时间 Interval time of two rainfall (INT) | 温度 Temperature (T) |
---|---|---|---|---|---|---|
0.794 p<0.001 | 0.249 p=0.150 | 0.558 p<0.001 | 0.133 p=0.445 | -0.035 p=0.840 | ||
偏相关分析 Partial correlation | I | R | RI | DA | INT | T |
0.591 p<0.001 | 0.202 p=0.277 | 0.392 p=0.029 | 0.383 p=0.033 | -0.063 p=0.736 |
Table 3 The Pearson correlation and the partial correlation coefficients of rainfall intercepion and other influencing factors of conifer forest
Pearson相关分析 Pearson correlation | 冠层截留 Interception of rainfall by canopy (I) | 降雨量 Rainfall (R) | 雨强 Rainfall intensity (RI) | 持续时间 Duration of the rainfall (DA) | 间隔时间 Interval time of two rainfall (INT) | 温度 Temperature (T) |
---|---|---|---|---|---|---|
0.794 p<0.001 | 0.249 p=0.150 | 0.558 p<0.001 | 0.133 p=0.445 | -0.035 p=0.840 | ||
偏相关分析 Partial correlation | I | R | RI | DA | INT | T |
0.591 p<0.001 | 0.202 p=0.277 | 0.392 p=0.029 | 0.383 p=0.033 | -0.063 p=0.736 |
Pearson相关分析 Pearson correlation | 冠层截留 Interception of rainfall by canopy (I) | 降雨量 Rainfall (R) | 雨强 Rainfall intensity (RI) | 持续时间 Duration of the rainfall (DA) | 间隔时间 Interval time of two rainfall (INT) | 温度 Temperature (T) |
---|---|---|---|---|---|---|
0.818 p<0.001 | -0.014 p=0.947 | 0.690 p<0.001 | 0.076 p=0.712 | -0.468 p=0.016 | ||
偏相关分析 Partial correlation | I | R | RI | DA | INT | T |
0.684 p<0.001 | 0.091 p=0.688 | 0.445 p=0.038 | 0.177 p=0.432 | -0.520 p=0.013 |
Table 4 The Pearson correlation and the partial correlation coefficients of rainfall intercepion and other influencing factors of subalpine shrub
Pearson相关分析 Pearson correlation | 冠层截留 Interception of rainfall by canopy (I) | 降雨量 Rainfall (R) | 雨强 Rainfall intensity (RI) | 持续时间 Duration of the rainfall (DA) | 间隔时间 Interval time of two rainfall (INT) | 温度 Temperature (T) |
---|---|---|---|---|---|---|
0.818 p<0.001 | -0.014 p=0.947 | 0.690 p<0.001 | 0.076 p=0.712 | -0.468 p=0.016 | ||
偏相关分析 Partial correlation | I | R | RI | DA | INT | T |
0.684 p<0.001 | 0.091 p=0.688 | 0.445 p=0.038 | 0.177 p=0.432 | -0.520 p=0.013 |
类型 Type | 厚度 Thick (cm) | 地表盖度 Coverage | 干重 Dry weight (g·m-2) (平均值±标准差) (Mean±SD) | 原重 Natural weight (g·m-2) (平均值±标准差) Mean±SD) | 最大吸水重 Weight with maximum water storage (g·m-2) (平均值±标准差) Mean±SD) | 自然吸水率 Natural water storage capacity (%) | 最大吸水率 Maximum water storage capacity (%) |
---|---|---|---|---|---|---|---|
苔藓 Lichen (3) | 4 | 60% | 175.3±65.6 | 660.7±322.3 | 1 110.1±528.7 | 368.3% | 620.4% |
针叶林枯落物 Ground litter in conifer forest (3) | 3 | 90% | 2 199.8±459.4 | 6 760.0±1951.6 | 8 065.5±2 199.6 | 307.3% | 366.6% |
灌丛枯落物 Ground litter in shrub (3) | 3 | 95% | 895.8±125.5 | 2 533.3±334.9 | 3 468.1±433.8 | 283.0% | 388.0% |
Table 5 The stocking weight of lichen and ground litter, and theirs water storage capacity
类型 Type | 厚度 Thick (cm) | 地表盖度 Coverage | 干重 Dry weight (g·m-2) (平均值±标准差) (Mean±SD) | 原重 Natural weight (g·m-2) (平均值±标准差) Mean±SD) | 最大吸水重 Weight with maximum water storage (g·m-2) (平均值±标准差) Mean±SD) | 自然吸水率 Natural water storage capacity (%) | 最大吸水率 Maximum water storage capacity (%) |
---|---|---|---|---|---|---|---|
苔藓 Lichen (3) | 4 | 60% | 175.3±65.6 | 660.7±322.3 | 1 110.1±528.7 | 368.3% | 620.4% |
针叶林枯落物 Ground litter in conifer forest (3) | 3 | 90% | 2 199.8±459.4 | 6 760.0±1951.6 | 8 065.5±2 199.6 | 307.3% | 366.6% |
灌丛枯落物 Ground litter in shrub (3) | 3 | 95% | 895.8±125.5 | 2 533.3±334.9 | 3 468.1±433.8 | 283.0% | 388.0% |
层次 Soil layer (cm) | 土壤容重 Bulk density of soil (g·cm-3) | 土壤孔隙度 Soil porosity (%) | 土壤容积含水量 Bulk moisture content of soil (%) | ||||
---|---|---|---|---|---|---|---|
针叶林 Conifer forest | 灌丛 Shrub | 针叶林 Conifer forest | 灌丛 Shrub | 针叶林 Conifer forest | 灌丛 Shrub | ||
0~20 | 0.652 | 0.731 | 75.40 | 72.42 | 41.00 | 34.55 | |
20~40 | 0.792 | 0.894 | 70.11 | 66.26 | 43.54 | 37.63 | |
40~60 | 0.779 | 0.993 | 70.60 | 62.53 | 34.45 | 42.40 | |
平均 Average | 0.741 | 0.873 | 72.04 | 67.06 | 39.66 | 38.19 |
Table 6 The bulk density of soil and soil moisture content of the two ecosystems
层次 Soil layer (cm) | 土壤容重 Bulk density of soil (g·cm-3) | 土壤孔隙度 Soil porosity (%) | 土壤容积含水量 Bulk moisture content of soil (%) | ||||
---|---|---|---|---|---|---|---|
针叶林 Conifer forest | 灌丛 Shrub | 针叶林 Conifer forest | 灌丛 Shrub | 针叶林 Conifer forest | 灌丛 Shrub | ||
0~20 | 0.652 | 0.731 | 75.40 | 72.42 | 41.00 | 34.55 | |
20~40 | 0.792 | 0.894 | 70.11 | 66.26 | 43.54 | 37.63 | |
40~60 | 0.779 | 0.993 | 70.60 | 62.53 | 34.45 | 42.40 | |
平均 Average | 0.741 | 0.873 | 72.04 | 67.06 | 39.66 | 38.19 |
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