Tree species mixing causes shifts in nitrogen acquisition and utilization strategies of Mongolian pine and Simon poplar DOI Creative Commons
Xin Li, De‐Hui Zeng, Zunlai Sheng

и другие.

Ecological Processes, Год журнала: 2025, Номер 14(1)

Опубликована: Фев. 10, 2025

Abstract Background Establishing mixed-species plantations is increasingly recognized as an important silvicultural measure because they are more productive than monocultures. This over-yielding attributed to the complementary resource use between component tree species, yet it remains largely unknown whether and how species adjust nutrient acquisition utilization strategies achieve use. Here, we measured soil nitrogen (N) availability transformation rates, leaf N resorption efficiency proficiency, nine root morphological, physiological mycorrhizal traits tightly related in 20-year-old pure mixed stands of Pinus sylvestris var. mongolica (Mongolian pine) Populus simonii (Simon poplar), northeast China. Results Tree mixing had negative effects on nitrate concentration net mineralization rate, but positive absorptive fine biomass. Compared growing alone, Mongolian pine higher efficiency, produced roots with more-efficient morphological features characterized by specific length lower tissue density. Additionally, Simon poplar greater density, area index, relative abundance ectomycorrhizal fungi genetic potential produce class II peroxidases stands. Conclusions These findings highlight that express high plasticity response mixing, suggest this could be responsible for plantations.

Язык: Английский

The impact of abandoned iron ore on the endophytic bacterial communities and functions in the root systems of three major crops in the local area DOI Creative Commons
Shuyi Chen, Jie Tang, Junqiang Xu

и другие.

Frontiers in Microbiology, Год журнала: 2025, Номер 16

Опубликована: Янв. 21, 2025

Introduction Global mining activities have significant impacts on ecosystems, but most studies focused only the relationship between soil physicochemical properties and microbial diversity in soils. The present study provides an insight into effects of physico-chemical endophytic bacterial community composition rhizosphere three different crops. Methods Musa basjoo Siebold L., Amygdalus persica Triticum aestivum L. were collected from inter-root soils plant roots to determine communities root system. Results results showed that resulted acidification, altered trace element content increased organic carbon. There was increase Ascomycota Actinobacteria phylum crop bacteria. Interestingly, chao1 shannon indices endophytes significantly elevated compared contro ( p < 0.05). Among them, highest level richness environment. environment functional enrichment histidine kinases oxidoreductases community. total potassium (TK) soil, as well Fe Pb content, positively correlated with α-diversity index Streptomyces . Zn Ti negatively index. Discussion This data support for exploring mechanisms response developing ecological restoration strategies areas.

Язык: Английский

Процитировано

1
Consequences of nitrogen deposition and soil acidification in European forest ecosystems and mitigation approaches DOI Creative Commons
Baoguo Du, Ralf Kiese, Klaus Butterbach‐Bahl

и другие.

Forest Ecology and Management, Год журнала: 2025, Номер 580, С. 122523 - 122523

Опубликована: Янв. 29, 2025

Язык: Английский

Процитировано

0
Tree species mixing causes shifts in nitrogen acquisition and utilization strategies of Mongolian pine and Simon poplar DOI Creative Commons
Xin Li, De‐Hui Zeng, Zunlai Sheng

и другие.

Ecological Processes, Год журнала: 2025, Номер 14(1)

Опубликована: Фев. 10, 2025

Abstract Background Establishing mixed-species plantations is increasingly recognized as an important silvicultural measure because they are more productive than monocultures. This over-yielding attributed to the complementary resource use between component tree species, yet it remains largely unknown whether and how species adjust nutrient acquisition utilization strategies achieve use. Here, we measured soil nitrogen (N) availability transformation rates, leaf N resorption efficiency proficiency, nine root morphological, physiological mycorrhizal traits tightly related in 20-year-old pure mixed stands of Pinus sylvestris var. mongolica (Mongolian pine) Populus simonii (Simon poplar), northeast China. Results Tree mixing had negative effects on nitrate concentration net mineralization rate, but positive absorptive fine biomass. Compared growing alone, Mongolian pine higher efficiency, produced roots with more-efficient morphological features characterized by specific length lower tissue density. Additionally, Simon poplar greater density, area index, relative abundance ectomycorrhizal fungi genetic potential produce class II peroxidases stands. Conclusions These findings highlight that express high plasticity response mixing, suggest this could be responsible for plantations.

Язык: Английский

Процитировано

0