scholarly journals Shifts in ecological strategy spectra of typical forest vegetation types across four climatic zones

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xin Han ◽  
Jihong Huang ◽  
Runguo Zang
Keyword(s):  
Tropical Rainforest ◽  
Relative Proportion ◽  
Coniferous Forest ◽  
Mixed Forest ◽  
Forest Vegetation ◽  
Vegetation Types ◽  
Ecological Strategy ◽  
Ecological Strategies ◽  
Climatic Zones ◽  
Warm Temperate

AbstractEcological strategy spectrum is the relative proportion of species in different categories of ecological strategies in a biotic community. Here, we explored ecological strategy spectra in typical forest vegetation types across four climatic zones in China. We classified ecological strategy categories by using the “StrateFy” ordination method based on three leaf functional traits. Results showed that the predominant ecological strategies of species in the tropical rainforest were CS-selected, and the predominant categories in the evergreen-deciduous broadleaved mixed forest and warm-temperate coniferous-broadleaved mixed forest were CSR and S/CSR categories respectively, whereas those in the cold-temperate coniferous forest were the S-selected ones. Ecological strategy richness of forest vegetation decreased significantly with the increase of latitude. The categories of ecological strategies with more component S increased while those with more component C decreased with the change of typical forest vegetation types from tropical rainforest through evergreen-deciduous broadleaved mixed forest and warm-temperate coniferous-broadleaved mixed forest to cool-temperate coniferous forest. Our findings highlight the usefulness of Grime’s C-S-R scheme for predicting the responses of vegetation to environmental changes, and the results are helpful in further elucidating species coexistence and community assembly in varied climatic and geographic settings.

Soil nematode abundance and diversity from four vegetation types in Central Mexico

Nematology ◽  
2018 ◽  
Vol 20 (1) ◽  
pp. 15-32
Author(s):  
Hugo H. Mejía-Madrid
Keyword(s):  
Tropical Rainforest ◽  
Deciduous Forest ◽  
Coniferous Forest ◽  
Small Sample ◽  
Central Mexico ◽  
Soil Nematode ◽  
Vegetation Types ◽  
Dry Deciduous Forest ◽  
Nematode Abundance ◽  
Abundance And Diversity

Soil nematode abundance and MOTU diversity were estimated from a geographically broad area of Mexico that included four out of seven recognised vegetation types. Vegetation types were assessed for abundance and diversity of nematode communities and inferred ecological relationships between them. Soils were sampled from tropical rainforest, tropical dry deciduous forest, temperate coniferous forest and xerophytic shrub during 2013, 2014 and 2015. Fourteen sampling sites withca10-20 samples per site from 11 localities spread across Central Mexico were assessed. Altitudes sampled ranged from 113 m a.s.l. (tropical coastal plain) to 2400 m a.s.l. (Trans-Mexican Volcanic Belt). Samples were drawn from conserved and cultivated plots from each sampling site covering an area of ⩾100 m2. A total of 13 263 individuals from 25 identified families of nematodes were collected. Family abundance and complementarity indices between sites revealed to some extent the affinities between vegetation types. Nevertheless, statistical analyses revealed no differences between nematode family abundances between sites, only between families across all sites. Molecular operational taxonomic units (MOTU) methods were employed as a framework to assess biodiversity. From these, 77 high-quality sequences for taxonomic barcoding were recovered and later identified with morphological traits. Only six sequences matched at a 98-99% level with those reported in GenBank. Sequences amounted to a total of 41 MOTU, where 100% of the MOTU from both conserved and disturbed tropical rainforest, tropical dry deciduous forest and xerophytic shrub exhibited a ⩾3% cut-off genetic identity, whilst temperate coniferous forest and disturbed temperate coniferous forest showed 73% and 70% respectively. In addition, 12.2% MOTU were shared among localities and 87.8% exhibited an apparently locality-limited distribution. The potential for a considerable diversity of nematodes, as revealed from a small sample of MOTU diversity, is discussed.

scholarly journals Forest Vegetation Cover in Yok Don National Park, Vietnam

2021 ◽  
pp. 64-68
Author(s):  
Dang Viet Viet Hung ◽  
Dang Thi Lan Anh ◽  
Nguyen Thi Ha ◽  
Alexander F. Potokin ◽  
Vu Van Truong
Keyword(s):  
Vascular Plants ◽  
National Park ◽  
Tropical Rainforest ◽  
Ornamental Plants ◽  
Forest Vegetation ◽  
Edible Plants ◽  
Vegetation Types ◽  
Useful Plants ◽  
Industrial Plants ◽  
Rainforest Zone

Yok Don National Park is located in the tropical rainforest zone on the Central Highlands of Vietnam. The obtained results from the study undertaken on the composition of plant species and forest vegetation in National Park indicated a record of 856 species, 473 genera and 129 families that belongs to the four divisions of vascular plants. These includes: Lycopodiophyta, Polypodiophyta, Pinophyta and Magnoliophyta. Useful plants of 856 taxonomy species listed consists of 498 species of medicinal plants, 157 species of timber plants, 144 species of edible plants, 60 species of ornamental plants, 19 species of industrial plants, 10 species of fiber plants and 38 species of unknown use plants, respectively. During the duration of investigation, Peliosanthes teta Andrews was newly recorded in the forest vegetation of National Park. A variety of forest vegetations in the area under study is described. In this study, four major vegetation types of forest were identified in Yok Don National Park.

scholarly journals Capturing the Impact of 2018 European Drought and Heat Using OCO-2 Solar-Induced Fluorescence

2020 ◽  
Author(s):  
Ankit Shekhar ◽  
Jia Chen ◽  
Shrutilipi Bhattacharjee ◽  
Allan Buras ◽  
Antony Oswaldo Castro ◽  
...  
Keyword(s):  
Forest Fires ◽  
Coniferous Forest ◽  
Mixed Forest ◽  
Terrestrial Ecosystem ◽  
Added Value ◽  
Summer Drought ◽  
Vegetation Types ◽  
Dry Conditions ◽  
Tree Leaf ◽  
The Impact

The European heatwave of 2018 led to record-breaking temperatures and extremely dry conditions in many parts of the continent resulting in widespread decrease in agricultural yield, early tree-leaf senescence, and increase in forest fires in Northern Europe. Our study aims to capture the impact of the 2018 European heatwave on terrestrial ecosystem through the lens of a high-resolution solar-induced fluorescence (SIF) data acquired from the Orbiting Carbon Observatory (OCO-2) satellite. SIF is proposed to be a direct proxy for gross primary productivity (GPP) and thus can be used to draw inferences about changes in photosynthetic activity in vegetation due to extreme events. We explore spatial and temporal SIF variation and anomaly during spring and summer months across different vegetation types (agriculture, broadleaved forest, coniferous forest, and mixed forest) during the European heatwave of 2018 and compare it to non-drought conditions (most of Southern Europe). About one-third of Europe’s land area experienced a consecutive spring and summer drought in 2018. Comparing 2018 to mean (2015-2017) conditions, we found a change in intra-spring season SIF dynamics for all vegetation types, with lower SIF during the start of spring followed by an increase in fluorescence from mid-April. Summer, however, showed a significant decrease in SIF. Our results show that particularly agricultural areas were severely affected by the hotter drought of 2018. Furthermore, the intense heat wave in Central Europe showed about 31% decrease in SIF values during July and August as compared to the mean over three previous years. Furthermore, our MODIS and OCO-2 comparative results indicate that especially for forests, OCO-2 SIF has a quicker response and possible higher sensitivity to drought in comparison to MODIS’s fPAR and NDVI when considering shorter reference periods, which highlights the added value of remotely sensed solar-induced fluorescence for studying the impact of drought on vegetation.

scholarly journals Forest Vegetation Cover in Binh Chau - Phuoc Buu Nature Reserve in Southern Vietnam

2020 ◽  
Vol 175 ◽  
pp. 14016 ◽  
Author(s):  
Viet Hung Dang ◽  
Alexander Potokin ◽  
Thi Lan Anh Dang ◽  
Thi Ha Nguyen ◽  
Van Son Le
Keyword(s):  
Vascular Plants ◽  
Tropical Rainforest ◽  
Nature Reserve ◽  
Ornamental Plants ◽  
Forest Vegetation ◽  
Vegetation Types ◽  
Useful Plants ◽  
Industrial Plants ◽  
Southern Vietnam ◽  
Rainforest Zone

Binh Chau Phuoc Buu Nature Reserve is located in the tropical rainforest zone of southeast Vietnam. The obtained results from the study undertaken on the composition of plant species and forest vegetation in Binh Chau Phuoc Buu Nature Reserve indicated a record of 743 species, 423 genera and 122 families that belongs to the three divisions of vascular plants. These includes: Polypodiophyta, Pinophyta and Magnoliophyta. Useful plants of 743 taxonomy species listed consists of 328 species of medicinal plants, 205 species of timber plants, 168 species of edible plants, 159 species of ornamental plants, 56 species of industrial plants, 10 species of fiber plants and 29 species of unknown use plants, respectively. During the duration of investigation, Nervilia aragoana Gaudich. was newly recorded in the forest vegetation of Binh Chau Phuoc Buu Reserve. A variety of forest vegetations in the area under study is described. In this study, two major vegetation types of forest were identified in Binh Chau Phuoc BuuReserve.

scholarly journals Capturing the Impact of the 2018 European Drought and Heat across Different Vegetation Types Using OCO-2 Solar-Induced Fluorescence

2020 ◽  
Vol 12 (19) ◽  
pp. 3249
Author(s):  
Ankit Shekhar ◽  
Jia Chen ◽  
Shrutilipi Bhattacharjee ◽  
Allan Buras ◽  
Antony Oswaldo Castro ◽  
...  
Keyword(s):  
Forest Fires ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Coniferous Forest ◽  
Mixed Forest ◽  
Terrestrial Ecosystem ◽  
Added Value ◽  
Summer Drought ◽  
Vegetation Types ◽  
The Impact

The European heatwave of 2018 led to record-breaking temperatures and extremely dry conditions in many parts of the continent, resulting in widespread decrease in agricultural yield, early tree-leaf senescence, and increase in forest fires in Northern Europe. Our study aims to capture the impact of the 2018 European heatwave on the terrestrial ecosystem through the lens of a high-resolution solar-induced fluorescence (SIF) data acquired from the Orbiting Carbon Observatory-2 (OCO-2) satellite. SIF is proposed to be a direct proxy for gross primary productivity (GPP) and thus can be used to draw inferences about changes in photosynthetic activity in vegetation due to extreme events. We explore spatial and temporal SIF variation and anomaly in the spring and summer months across different vegetation types (agriculture, broadleaved forest, coniferous forest, and mixed forest) during the European heatwave of 2018 and compare it to non-drought conditions (most of Southern Europe). About one-third of Europe’s land area experienced a consecutive spring and summer drought in 2018. Comparing 2018 to mean conditions (i.e., those in 2015–2017), we found a change in the intra-spring season SIF dynamics for all vegetation types, with lower SIF during the start of spring, followed by an increase in fluorescence from mid-April. Summer, however, showed a significant decrease in SIF. Our results show that particularly agricultural areas were severely affected by the hotter drought of 2018. Furthermore, the intense heat wave in Central Europe showed about a 31% decrease in SIF values during July and August as compared to the mean over the previous three years. Furthermore, our MODIS (Moderate Resolution Imaging Spectroradiometer) and OCO-2 comparative results indicate that especially for coniferous and mixed forests, OCO-2 SIF has a quicker response and a possible higher sensitivity to drought in comparison to MODIS’s fPAR (fraction of absorbed photosynthetically active radiation) and the Normalized Difference Vegetation Index (NDVI) when considering shorter reference periods, which highlights the added value of remotely sensed solar-induced fluorescence for studying the impact of drought on vegetation.

scholarly journals Diversity of Vegetation in The Natural Forests of Londut Samosir Regency

2021 ◽  
Vol 2 (2) ◽  
pp. 87-96
Author(s):  
Marulam MT Simarmata
Keyword(s):  
Path Length ◽  
Mixed Forest ◽  
Forest Vegetation ◽  
Industrial Plant ◽  
Vegetation Types ◽  
Natural Forests ◽  
Initial Information ◽  
Path Measurement ◽  
The Creation

Londut protected forest contains mixed forest vegetation in the form of natural forest vegetation and there is forest vegetation of former industrial plant forest management, as well as natural tusam vegetation (Pinusmerkusii), also has the privilege of existing conditions that still have natural biodiversity in the form of natural tropical forest vegetation. The research aims to find out the variation and dominance of the type of forest vegetation contained in the area, so that initial information will be obtained in the framework of planning and management of the area. The implementation of research is carried out by the determination of plot methods, and the creation of inventory plots, the creation of inventory plots according to growth rate, inventory path, measurement of vegetation dimensions, and identification. The inventory plot method is carried out with a net system (nested sampling) with an inventory path length of 500 m with a repeat of 5 lanes whose placement is evenly spread over the Londut forest area to get representation. The results showed 31 types of vegetation growing in the region. Based on the diversity of types included in the moderate category as well as the value of the level of the type in the low class. The dominance of vegetation types at the level of seedlings, stake, and poles is occupied by hosting vegetation types (Quercus sp) with magnitudes of 25.90%, 33.94%, and 37.61% respectively. For the level of trees dominated by the type of Tusam (Pinusmerkussii) 57.71%.

A New Species of Eugenia subg. Pseudeugenia (Myrtaceae, Myrteae) from Brazilian Atlantic Forest

2020 ◽  
Vol 45 (3) ◽  
pp. 537-543
Author(s):  
Karinne Sampaio Valdemarin ◽  
Jair Eustáquio Quintino Faria ◽  
Fiorella Fernanda Mazine ◽  
Vinicius Castro Souza
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Conservation Status ◽  
Forest Vegetation ◽  
Vegetation Types ◽  
Flower Buds ◽  
Diagnostic Features ◽  
Closely Related Species ◽  
Lowland Forests ◽  
A New Species

Abstract—A new species of Eugenia from the Atlantic forest of Brazil is described and illustrated. Eugenia flavicarpa is restricted to the Floresta de Tabuleiro (lowland forests) of Espírito Santo state and is nested in Eugenia subg. Pseudeugenia. Considering all other species of the subgenus that occur in forest vegetation types of the Atlantic forest phytogeographic domain, Eugenia flavicarpa can be distinguished mainly by the combination of smooth leaves with indumentum on both surfaces, with two marginal veins, usually ramiflorous inflorescences, pedicels 4.5‐9.7 mm long, flower buds 3.5‐4 mm in diameter, and by the calyx lobes that are 2‐3 mm long with rounded to obtuse apices. Morphological analyses were performed to explore the significance of quantitative diagnostic features between the new species and the closely related species, Eugenia farneyi. Notes on the habitat, distribution, phenology, and conservation status of Eugenia flavicarpa are provided, as well as a key for all species of Eugenia subg. Pseudeugenia from forest vegetation of the Atlantic forest phytogeographic domain.

Biometric and eddy-covariance-based estimates of carbon balance for a warm-temperate mixed forest in Japan

2008 ◽  
Vol 148 (5) ◽  
pp. 723-737 ◽  
Author(s):  
Yuji Kominami ◽  
Mayuko Jomura ◽  
Masako Dannoura ◽  
Yoshiaki Goto ◽  
Koji Tamai ◽  
...  
Keyword(s):  
Eddy Covariance ◽  
Carbon Balance ◽  
Mixed Forest ◽  
Temperate Mixed Forest ◽  
Warm Temperate

scholarly journals Flora y Vegetación de las zonas núcleo de la Reserva de la Biosfera Mariposa Monarca, México

2017 ◽  
pp. 43
Author(s):  
Guadalupe Cornejo-Tenorio ◽  
Alejandro Casas ◽  
Berenice Farfán ◽  
José Luis Villaseñor ◽  
Guillermo Ibarra-Manríquez
Keyword(s):  
Cloud Forest ◽  
Vascular Plant ◽  
Coniferous Forest ◽  
Biosphere Reserve ◽  
Field Work ◽  
Monarch Butterfly ◽  
Oak Forests ◽  
Vegetation Types ◽  
Voucher Specimens ◽  
One Year

A study of the flora and vegetation physiognomy was conducted at the core zones of the Monarch Butterfly Biosphere Reserve, in the states of México and Michoacán. Collection of plant specimens was carried out du ring one year of field work and this activity was supplemented by a review of voucher specimens previously collected in the area and deposited at the Mexican herbaria IEB, EBUM, and MEXU. A total of 423 vascular plant species including 32 infraespecific taxa and grouped in 86 families and 244 genera were identified, Families with the largest species richness were Asteraceae (103), Lamiaceae (21), Fabaceae (17), and Scrophulariaceae (17).The most speciose genera were Salvia (13), Stevia (8), and Ageratina (7). Mexican endemic species comprised 135 (31.9%) species, which included 13 infrae spec ific taxa; 40 of these species belong to Asteraceae. Herbs were represented by 326 species, followed by shrubs (5 1) and trees (33). The main vegetation types recognized were coniferous forest (including combinations of fir, pine, and oak forests), cloud forest, anthropogenic grass land, and Quercus forest.

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