Soil water status influences plant nitrogen use: a case study
Soil water status influences plant nitrogen use: a case study
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土壤水分状况影响植物氮利用:案例研究
DOI:
10.1007/s11104-007-9450-y
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发表时间:
2007-11
期刊:
影响因子:
4.9
通讯作者:
李凌浩
中科院分区:
文献类型:
--
作者:
袁志友;李凌浩
We studied differences in nitrogen use efficiency (NUE) among six species [Calamagrostis epigejos(L.) Roth.,Carex duriusculaC.A. Mey.,Phragmites communis(L.) Trin.,Salix gordejeviiY.L. Chang,Salix cheilophilaSchneid., andTypha minimaFunk.] growing in two contrasting habitat types, i.e., a riverine wetland with high water supply and a riparian zone with low water supply. The two sites were different in soil water supply, but not in nitrogen supply. Here, NUE was defined as the total net primary production per unit nitrogen absorbed. There was no significant difference in NUE between the species growing in the riverine wetland (Carex duriuscula,P. communis,S. cheilophila,T. minima) and the species growing in the river bank (Carex duriuscula,Calamagrostis epigejos,P. communis,S. gordejevii). We further analyzed NUE as the product of the nitrogen productivity (A, the rate of dry matter production per unit of nitrogen in the plant) and the mean residence time of nitrogen (MRT, the period of time a unit of nitrogen is present in the plant). The species growing in the riverine wetland had largerAbut lower MRT than the species growing in the river bank. There was an inverse relationship betweenAand MRT. Consequently, NUE was similar among species and habitats. These results suggested that environmental factors, such as soil water supply, can influence N use by plants.
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DOI:
10.1007/bf00043032
发表时间:
1983-09
期刊:
Vegetatio
影响因子:
--
作者:
J. Vermeer;F. Berendse
通讯作者:
J. Vermeer;F. Berendse
DOI:
10.1007/978-94-009-2221-1
发表时间:
1989
期刊:
--
影响因子:
--
作者:
R. W. Pearcy;J. Ehleringer;H. Mooney;P. Rundel
通讯作者:
R. W. Pearcy;J. Ehleringer;H. Mooney;P. Rundel
影响因子:
4
作者:
P. Vitousek;R. Howarth
通讯作者:
P. Vitousek;R. Howarth
影响因子:
4.9
作者:
Fernando Silla;A. Escudero
通讯作者:
Fernando Silla;A. Escudero
DOI:
10.1086/284382
发表时间:
1985-06
期刊:
The American Naturalist
影响因子:
--
作者:
D. Tilman
通讯作者:
D. Tilman