Soil particle heterogeneity affects the growth of a rhizomatous wetland plant.
Soil particle heterogeneity affects the growth of a rhizomatous wetland plant.
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土壤颗粒异质性影响根茎湿地植物的生长
DOI：
10.1371/journal.pone.0069836
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Yu FH
中科院分区：
文献类型：
--
作者：
Huang L;Dong BC;Xue W;Peng YK;Zhang MX;Yu FH
土壤通常由不同大小的颗粒组成，土壤颗粒大小会影响土壤的物理化学性质，从而极大地影响植物的生长。然而，还没有研究测试土壤颗粒的异质性对克隆植物生长的影响。我们进行了一项温室试验，在三个均匀的土壤处理中，分别种植湿地植物BolBoschoenus Placemis的个体分株，其中三个处理含有均匀尺寸的石英颗粒(小：0.75 mm，中等：1.5 mm，或大：3 mm)，一个均匀处理，大、中颗粒均匀混合，以及两个由16或4块大、中颗粒组成的异质处理。中颗粒物处理的生物量、分株数、根茎长度和间隔体长度显著大于大颗粒物处理。中颗粒斑块处理的生物量、分株数、根茎长度和块茎数均大于大颗粒斑块处理，这种差异在斑块小颗粒处理比大颗粒处理更明显。土壤颗粒大小和非均质性对克隆植物的生长有很大影响。因此，测试土壤异质性对克隆植物的影响的研究应该区分营养异质性和颗粒异质性的影响。
Soil is commonly composed of particles of different sizes, and soil particle size may greatly affect the growth of plants because it affects soil physical and chemical properties. However, no study has tested the effects of soil particle heterogeneity on the growth of clonal plants. We conducted a greenhouse experiment in which individual ramets of the wetland plant Bolboschoenus planiculmis were grown in three homogeneous soil treatments with uniformly sized quartz particles (small: 0.75 mm, medium: 1.5 mm, or large: 3 mm), one homogeneous treatment with an even mixture of large and medium particles, and two heterogeneous treatments consisting of 16 or 4 patches of large and medium particles. Biomass, ramet number, rhizome length and spacer length were significantly greater in the treatment with only medium particles than in the one with only large particles. Biomass, ramet number, rhizome length and tuber number in the patchy treatments were greater in patches of medium than of large particles; this difference was more pronounced when patches were small than when they were large. Soil particle size and soil particle heterogeneity can greatly affect the growth of clonal plants. Thus, studies to test the effects of soil heterogeneity on clonal plants should distinguish the effects of nutrient heterogeneity from those of particle heterogeneity.
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影响因子：
1.9
作者：
Hutchings, Michael J.;Wijesinghe, Dushyantha K.
通讯作者：
Wijesinghe, Dushyantha K.
DOI：
10.1111/j.1365-2745.2012.02014.x
发表时间：
2012-11-01
期刊：
The Journal of ecology
影响因子：
--
作者：
García-Palacios P;Maestre FT;Bardgett RD;de Kroon H
通讯作者：
de Kroon H
影响因子：
7.3
作者：
De Kroon, Hans;Visser, Eric J. W.;Hutchings, Michael J.
通讯作者：
Hutchings, Michael J.
影响因子：
6.5
作者：
EHLERS, W;KOPKE, U;BOHM, W
通讯作者：
BOHM, W
影响因子：
1.7
作者：
Chen, YF;Yu, FH;Dong, M
通讯作者：
Dong, M