Aridity and Soil Properties Drive the Shrub–Herb Interactions Along Drought Gradient in Desert Grassland in Inner Mongolia DOI Creative Commons

Huiyang Hou,

Yuzhen Zhang, Jianwei Zhou

и другие.

Agronomy, Год журнала: 2024, Номер 14(11), С. 2588 - 2588

Опубликована: Ноя. 2, 2024

Environmental conditions can control the structure and composition of plant communities by changing direction intensity plant–plant interactions. In extreme arid regions, accompanied water soil nutrient limitation, positive shrub–herb interactions may vary along an aridity gradient, leading to changes in ecological consequences shrub encroachment. We investigated vegetation within 60 patches their paired interspaces at 20 sites from northeast southwest desert steppe Inner Mongolia, China, encroached Caragana microphylla shrub. The results show that aridity, organic matter (SOM), total phosphorus (TP) were main factors driving interaction first increased then decreased with increasing (in range De Martonne Index (DMI) 0.54 1.85). DMI indirectly affected through TP, facilitation shrubs on herbs coverage biomass increase TP. SOM directly affect shrub–herbs interaction, herb diversity decreases SOM. Our indicate environmental stress gradient; general, have a effect herbaceous gradient. This study underscores effects restoration steppes, precipitation, TP content, reducing content enhance accelerate degraded steppe.

Язык: Английский

Geographical parthenogenesis in tetraploid brambles: Do competition and reproductive output in the secondary contact zone matter? DOI
Michaela Konečná, Martin Duchoslav, Michal Sochor

и другие.

Perspectives in Plant Ecology Evolution and Systematics, Год журнала: 2025, Номер 67, С. 125859 - 125859

Опубликована: Фев. 27, 2025

Язык: Английский

Процитировано

0
Aridity and soil properties drive the shrub-herb interactions along drought gradient in desert grassland in Inner Mongolia DOI Creative Commons

Huiyang Hou,

Yuzhen Zhang, Jianwei Zhou

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Июнь 19, 2024

Abstract Purpose Environmental conditions can control the structure and composition of plant communities by changing direction intensity plant-plant interactions. However, how drought soil properties drive change shrub-herb interaction in shrub-encroachment desert steppe Inner Mongolia remains unclear. Methods We explored changes along aridity gradient, analyzed index affect interaction. Field collection samples soils from northeast to southwest was undertaken were for biomass, diversity, PH, organic matter other elements. Results The results show that positive (RII > 0) increased at first then decreased range 0.54 1.85 (drought degree gradually). Aridity (AI), (SOM) total phosphorus (TP) main factors driving AI indirectly affected through TP, facilitation shrubs on herbs coverage biomass with increase TP. SOM directly shrub-herbs interaction, herb diversity decreases SOM. Conclusion Overall, although interactions respond differently environmental factors. This study underscores effects vegetation restoration steppe, increasing precipitation, TP content, reducing content enhance shrub accelerate ecological degraded steppe.

Язык: Английский

Процитировано

2
Response of ecological stoichiometry and homeostasis characteristic to nitrogen addition in Hippophae rhamnoides L. DOI

Zhongyu Du,

Huihui Bai,

Mili Liu

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 951, С. 175591 - 175591

Опубликована: Авг. 20, 2024

Язык: Английский

Процитировано

1
Evolution of rarity and phylogeny determine above- and belowground biomass in plant-plant interactions DOI Creative Commons
Alivia Nytko, Ashlynn M. Hord, John K. Senior

и другие.

PLoS ONE, Год журнала: 2024, Номер 19(5), С. e0294839 - e0294839

Опубликована: Май 20, 2024

Rare species are often considered inferior competitors due to occupancy of small ranges, specific habitats, and local populations. However, the phylogenetic relatedness rarity level (level 1–7 common) interacting in plant-plant interactions not when predicting response rare plants a biotic context. We used common garden 25 Tasmanian Eucalyptus , differentiate non-additive patterns biomass versus grown mixtures varying rarity. demonstrate that maintain progressively positive responses with phylogenetically intermediate, less species. This trend is reflected out-performed monocultures compared mixtures. These results offer predictability as how species’ productivity will respond within various interactions. species-specific interactions, such those involving E . globulus yielded 97% increase other interaction outcomes. important because they suggest plant may also be shaped by addition known environmental population factors normally describe utilize potentially facilitative intermediate escape effects limiting similarity. Biotically mediated increases have subsequent on competitive ability geographic occurrence species, allowing persist at low abundance across communities. Through consideration evolutionary history, we can more accurately predict dynamics preserve unique ecosystem functions fundamentally challenge what it means “rare”.

Язык: Английский

Процитировано

0
Morphophysiological responses of bean cultivars in competition with Conyza bonariensis DOI Creative Commons
Ilana Giachini Gasparetto, Leandro Galon, Caroline Müller

и другие.

Revista Caatinga, Год журнала: 2024, Номер 37

Опубликована: Янв. 1, 2024

ABSTRACT Weeds are responsible for large losses in grain quality and quantity of beans produced. Therefore, studies on competition between weeds important to achieve more efficient crop management while reducing the use herbicides. Thus, aim this work was evaluate competitive ability bean cultivars (BRS Estilo, IPR Urutau, IAC 1850 Tangará) presence hairy fleabane (Conyza bonariensis) with different proportions plants association. The experiments were conducted a greenhouse randomized block design four replicates. treatments arranged common plants: 20:00, 15:5, 10:10, 5:15, 0:20 pot-1. species analyzed using diagrams applied substitution relative indices. Plant height, stem diameter, leaf area, gas exchange shoot dry matter measured 40 days after plant emergence. Negative effects observed both fleabane, as competed same resources available environment. Interspecific caused greater damage area than intraspecific competition. Common achieved higher photosynthetic rates water efficiency fleabane. have against

Язык: Английский

Процитировано

0
Aridity and Soil Properties Drive the Shrub–Herb Interactions Along Drought Gradient in Desert Grassland in Inner Mongolia DOI Creative Commons

Huiyang Hou,

Yuzhen Zhang, Jianwei Zhou

и другие.

Agronomy, Год журнала: 2024, Номер 14(11), С. 2588 - 2588

Опубликована: Ноя. 2, 2024

Environmental conditions can control the structure and composition of plant communities by changing direction intensity plant–plant interactions. In extreme arid regions, accompanied water soil nutrient limitation, positive shrub–herb interactions may vary along an aridity gradient, leading to changes in ecological consequences shrub encroachment. We investigated vegetation within 60 patches their paired interspaces at 20 sites from northeast southwest desert steppe Inner Mongolia, China, encroached Caragana microphylla shrub. The results show that aridity, organic matter (SOM), total phosphorus (TP) were main factors driving interaction first increased then decreased with increasing (in range De Martonne Index (DMI) 0.54 1.85). DMI indirectly affected through TP, facilitation shrubs on herbs coverage biomass increase TP. SOM directly affect shrub–herbs interaction, herb diversity decreases SOM. Our indicate environmental stress gradient; general, have a effect herbaceous gradient. This study underscores effects restoration steppes, precipitation, TP content, reducing content enhance accelerate degraded steppe.

Язык: Английский

Процитировано

0