Biomass allocation in response to salinity and competition in native and invasive species
Biomass allocation in response to salinity and competition in native and invasive species
复制标题
应对本地和入侵物种的盐度和竞争的生物质分配
DOI：
10.1002/ecs2.3900
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发表时间：
2022-01
期刊：
影响因子：
2.7
通讯作者：
Yang Gao
中科院分区：
文献类型：
--
作者：
Long Tang;Qing Shi Zhou;Wei Guo;Peng Li;Yang Gao
Biomass allocation to different plant parts affects the subsequent capture rate of resources and reproduction. Thus, many studies have been conducted on the biomass allocation to learn growth, reproduction, and competitive ability of plants. However, few researchers have explored how biomass allocation responses to nonresource factor and interspecific competition over time. We experimentally investigated the effects of soil salinity and competition on root : shoot ratio (RS), reproductive effort (RE; seed biomass : total biomass ratio), the relationship between belowground and aboveground biomass, the relationship between reproductive and vegetative biomass, growth, and reproduction of invasiveSpartina alternifloraand nativePhragmites australis. The biomass ofP. australisdecreased with increasing salinity, whereas that ofS. alternifloradid not significantly change. The reproduction ofP. australisdecreased with increasing salinity under competitive conditions, and that ofS. alternifloraincreased. Therefore,P. australiswas less‐tolerant, andS. alterniflorawas more‐tolerant. The RS ofP. australisincreased over time under competitive conditions and with increasing salinity, and that ofS. alternifloradid not significantly change. The RE ofP. australisdecreased to zero with decreasing total biomass, and that ofS. alternifloradid not significantly correlate with total biomass. Both species exhibited a linear relationship between belowground and aboveground biomass. The relationship between reproductive and vegetative biomass inP. australiswas linear, and the reproductive biomass ofS. alternifloradid not significantly correlate with the vegetative biomass. Competitive dominance shifted fromP. australistoS. alterniflorawith increasing salinity. The findings demonstrated that the plastic biomass allocation of less‐tolerant species facilitates performance of less‐tolerant species in favorable environments, while the fixed biomass allocation of more‐tolerant species facilitates performance of more‐tolerant species in stressful environments, suggesting thatS.alterniflorainvasion driven by competitive exclusion probably occur in high salinity zones, and reproductive ability of invasive species should be relatively stronger during exclusion. More broadly, linking level of environmental stresses with tolerance of plants is crucial to understanding and predicting the biomass allocation and its effects on plant performance, which is an expansion of predictions from optimal theory and allometric theory and therefore illustrates the conditionality of these predictions.
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影响因子：
3
作者：
Crosby, Sarah C.;Ivens-Duran, Morgan;Leslie, Heather M.
通讯作者：
Leslie, Heather M.
影响因子：
2.7
作者：
Chen, Jiquan;Zhao, Bin;Chen, Jiakuan
通讯作者：
Chen, Jiakuan
DOI：
10.1086/414724
发表时间：
1986-03
期刊：
The Quarterly Review of Biology
影响因子：
--
作者：
C. Welden;W. Slauson
通讯作者：
C. Welden;W. Slauson
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影响因子：
3.8
作者：
Li, Bo;Liao, Chengz-hang;Chen, Jia-kuan
通讯作者：
Chen, Jia-kuan
影响因子：
5.2
作者：
Shipley, B;Meziane, D
通讯作者：
Meziane, D