Chin J Plant Ecol ›› 2008, Vol. 32 ›› Issue (6): 1268-1276.DOI: 10.3773/j.issn.1005-264x.2008.06.007
• Original article • Previous Articles Next Articles
YANG Xiao-Lin1,2,3, ZHANG Xi-Ming1,*(), LI Yi-Ling1,2, LI Shao-Cai3, SUN Hai-Long3
Received:
2007-10-29
Accepted:
2008-04-15
Online:
2008-10-29
Published:
2008-11-30
Contact:
ZHANG Xi-Ming
YANG Xiao-Lin, ZHANG Xi-Ming, LI Yi-Ling, LI Shao-Cai, SUN Hai-Long. ANALYSIS OF ROOT ARCHITECTURE AND ROOT ADAPTIVE STRATEGY IN THE TAKLIMAKAN DESERT AREA OF CHINA[J]. Chin J Plant Ecol, 2008, 32(6): 1268-1276.
地理位置 Location | 年降水量 Mean annual precipitation (mm) | 年蒸发量 Mean annual evaporation (mm) | 极端气温 Extreme temperature (℃) | 矿化度 Degree of mineralization (g·L-1) | 地下水位 Ground-water Table (m) |
---|---|---|---|---|---|
83°39'51.21" E 38°57'26.91" N | 36.60 | 3638.60 | -22.20~45.60 | 4.75~17.54 | 1.20 |
Table 1 The data of environmental factor in the hinterland of Taklimakan desert
地理位置 Location | 年降水量 Mean annual precipitation (mm) | 年蒸发量 Mean annual evaporation (mm) | 极端气温 Extreme temperature (℃) | 矿化度 Degree of mineralization (g·L-1) | 地下水位 Ground-water Table (m) |
---|---|---|---|---|---|
83°39'51.21" E 38°57'26.91" N | 36.60 | 3638.60 | -22.20~45.60 | 4.75~17.54 | 1.20 |
植物种 Species | 编号 Samples | 等级a(A) Altitude | 拓扑长度b Mean topological depth | 基部到终端所有连接总和Pe | 外部连接总和 v0 (M) | 修正拓扑指数 | 修正拓扑指数 | 拓扑指数TI |
---|---|---|---|---|---|---|---|---|
塔克拉玛干柽柳 Tamarix taklamakanensis | 101 | 7 | 5.47 | 82 | 15 | 0.207 | 0.139 | 0.719 |
102 | 9 | 6.67 | 200 | 30 | 0.128 | 0.072 | 0.646 | |
103 | 12 | 8.00 | 352 | 44 | 0.148 | 0.091 | 0.657 | |
104 | 10 | 6.96 | 181 | 26 | 0.212 | 0.144 | 0.706 | |
105 | 11 | 7.86 | 338 | 43 | 0.125 | 0.087 | 0.638 | |
106 | 12 | 8.23 | 576 | 70 | 0.077 | 0.037 | 0.585 | |
均值 Mean | | 10.167 | 7.198 | 288.167 | 38.000 | 0.150 | 0.095 | 0.659 |
塔克拉玛干沙拐枣 Calligonum roborovskii | 201 | 8 | 4.89 | 44 | 9 | 0.793 | 0.417 | 0.946 |
202 | 6 | 4.44 | 40 | 9 | 0.379 | 0.160 | 0.815 | |
203 | 6 | 4.38 | 35 | 8 | 0.500 | 0.273 | 0.862 | |
204 | 7 | 5.44 | 49 | 9 | 0.590 | 0.741 | 0.886 | |
205 | 9 | 6.59 | 112 | 17 | 0.328 | 0.309 | 0.775 | |
均值 Mean | 7.200 | 5.148 | 56.000 | 10.400 | 0.518 | 0.38 | 0.857 | |
罗布麻 Apocynum venetum | 301 | 9 | 6.33 | 114 | 18 | 0.299 | 0.221 | 0.760 |
302 | 6 | 4.43 | 31 | 7 | 0.687 | 0.592 | 0.921 | |
303 | 6 | 4.50 | 36 | 8 | 0.5 | 0.364 | 0.862 | |
304 | 9 | 6.00 | 72 | 12 | 0.595 | 0.500 | 0.884 | |
305 | 5 | 4.44 | 40 | 9 | 0.172 | 0.160 | 0.732 | |
306 | 9 | 6.59 | 112 | 17 | 0.328 | 0.309 | 0.813 | |
均值 Mean | 7.333 | 5.380 | 67.500 | 11.833 | 0.430 | 0.358 | 0.829 |
Table 2 The parameters of root system topology
植物种 Species | 编号 Samples | 等级a(A) Altitude | 拓扑长度b Mean topological depth | 基部到终端所有连接总和Pe | 外部连接总和 v0 (M) | 修正拓扑指数 | 修正拓扑指数 | 拓扑指数TI |
---|---|---|---|---|---|---|---|---|
塔克拉玛干柽柳 Tamarix taklamakanensis | 101 | 7 | 5.47 | 82 | 15 | 0.207 | 0.139 | 0.719 |
102 | 9 | 6.67 | 200 | 30 | 0.128 | 0.072 | 0.646 | |
103 | 12 | 8.00 | 352 | 44 | 0.148 | 0.091 | 0.657 | |
104 | 10 | 6.96 | 181 | 26 | 0.212 | 0.144 | 0.706 | |
105 | 11 | 7.86 | 338 | 43 | 0.125 | 0.087 | 0.638 | |
106 | 12 | 8.23 | 576 | 70 | 0.077 | 0.037 | 0.585 | |
均值 Mean | | 10.167 | 7.198 | 288.167 | 38.000 | 0.150 | 0.095 | 0.659 |
塔克拉玛干沙拐枣 Calligonum roborovskii | 201 | 8 | 4.89 | 44 | 9 | 0.793 | 0.417 | 0.946 |
202 | 6 | 4.44 | 40 | 9 | 0.379 | 0.160 | 0.815 | |
203 | 6 | 4.38 | 35 | 8 | 0.500 | 0.273 | 0.862 | |
204 | 7 | 5.44 | 49 | 9 | 0.590 | 0.741 | 0.886 | |
205 | 9 | 6.59 | 112 | 17 | 0.328 | 0.309 | 0.775 | |
均值 Mean | 7.200 | 5.148 | 56.000 | 10.400 | 0.518 | 0.38 | 0.857 | |
罗布麻 Apocynum venetum | 301 | 9 | 6.33 | 114 | 18 | 0.299 | 0.221 | 0.760 |
302 | 6 | 4.43 | 31 | 7 | 0.687 | 0.592 | 0.921 | |
303 | 6 | 4.50 | 36 | 8 | 0.5 | 0.364 | 0.862 | |
304 | 9 | 6.00 | 72 | 12 | 0.595 | 0.500 | 0.884 | |
305 | 5 | 4.44 | 40 | 9 | 0.172 | 0.160 | 0.732 | |
306 | 9 | 6.59 | 112 | 17 | 0.328 | 0.309 | 0.813 | |
均值 Mean | 7.333 | 5.380 | 67.500 | 11.833 | 0.430 | 0.358 | 0.829 |
植物种 Species | | | TI |
---|---|---|---|
塔克拉玛干柽柳 Tamarix taklamakanensis | 0.150a | 0.095a | 0.659a |
罗布麻 Apocynum venetum | 0.430b | 0.358b | 0.829b |
塔克拉玛干沙拐枣Calligonum roborovskii | 0.518b | 0.380b | 0.857b |
Table 3 The otherness comparison of root system topology with different species
植物种 Species | | | TI |
---|---|---|---|
塔克拉玛干柽柳 Tamarix taklamakanensis | 0.150a | 0.095a | 0.659a |
罗布麻 Apocynum venetum | 0.430b | 0.358b | 0.829b |
塔克拉玛干沙拐枣Calligonum roborovskii | 0.518b | 0.380b | 0.857b |
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