FOREST RESTORATION BY DIRECT SEEDING: A GLOBAL BIBLIOMETRIC ANALYSIS

2022 ◽  
Author(s):  
Diego Cerveira de Souza
Keyword(s):  
Bibliometric Analysis ◽  
Forest Restoration ◽  
Direct Seeding

Evaluating the success of direct seeding for tropical forest restoration over ten years

2019 ◽  
Vol 438 ◽  
pp. 224-232 ◽  
Author(s):  
Marina Guimarães Freitas ◽  
Silvia Barbosa Rodrigues ◽  
Eduardo Malta Campos-Filho ◽  
Guilherme Henrique Pompiano do Carmo ◽  
Junior Micolino da Veiga ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Forest Restoration ◽  
Direct Seeding ◽  
Tropical Forest Restoration

scholarly journals SEMEADURA DIRETA DE PATA-DE-VACA (Bauhinia ungulata L.) COM SEMENTES PRÉ-GERMINADAS PARA RESTAURAÇÃO FLORESTAL

Nativa ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 438-441
Author(s):  
Rubens Marques Rondon Neto ◽  
Fabrício Pereira de Jesus ◽  
Lucas Alves da Silva
Keyword(s):  
Survival Rate ◽  
Tree Species ◽  
Forest Restoration ◽  
Forest Regeneration ◽  
Direct Seeding ◽  
Artificial Regeneration ◽  
Degraded Area ◽  
Number Of Leaves ◽  
Direct Sowing ◽  
Germinated Seeds

Este estudo teve o objetivo de avaliar a estratégia de uso de sementes pré-germinadas de pata-de-vaca (Bauhinia ungulata L.) na semeadura direta para restauração florestal. Os tratamentos testados foram: T1= Plantio de mudas em tubetes (Testemunha); T2 = Semeadura direta sem pré-germinação; T3 = Semeadura direta com pré-germinação; T4 = Semeadura direta sem pré-germinação e hidrogel; e T5 = Semeadura direta com pré-germinação e hidrogel. O experimento foi instalado em blocos ao acaso com quatro repetições de 10 mudas ou pontos de sementes semeadas. Aos 100 e 210 dias de instalação do experimento foram feitas as seguintes avaliações: taxa de sobrevivência (Ts); altura total (Ht); diâmetro do colo (Dc); e número de folhas (Nf). A Ts e o crescimento morfológico de B. ungulata regeneradas pelo plantio de mudas não foram superadas pelas estratégias de semeaduras diretas utilizadas, mas a técnica demostrou ser promissora para futuros testes com outras espécies arbustivas e arbóreas de interesse à restauração florestal. Palavras-chave: área degradada; regeneração florestal; regeneração artificial.   Direct seeding of pata-de-vaca (Bauhinia ungulata L.) with pre-germinated seeds for forest restoration   ABSTRACT: This study aimed to evaluate the seed use strategy of using pre-germinated seeds of Bauhinia ungulata L. in direct sowing for forest restoration. The treatments tested were: T1 = Planting seedlings in tubes (Witness); T2 = Direct sowing without pre-germination; T3 = Direct sowing with pre-germination; T4 = Direct sowing without pre-germination and hydrogel; and T5 = Direct sowing with pre-germination and hydrogel. The experiment was installed in randomized blocks with four replications of 10 seedlings or points of seed sown. At 100 and 210 days after installation of the experiment, the following assessments were made: survival rate (Ts); total height (Ht); diameter (Dc); and number of leaves (Nf). The Ts and the morphological growth of B. ungulata regenerated by planting seedlings were not overcome by the direct seeding strategies used, but the technique proved to be promising for future tests with other shrub and tree species of interest to forest restoration. Keywords: degraded area; forest regeneration; artificial regeneration.

scholarly journals Effectiveness of Direct Seeding for Forest Restoration on Severely Degraded Land in Lampang Province, Thailand

2014 ◽  
Vol 04 (05) ◽  
pp. 512-519 ◽  
Author(s):  
Farzana Hossain ◽  
Stephen Elliott ◽  
Sutthathorn Chairuangsri
Keyword(s):  
Forest Restoration ◽  
Direct Seeding ◽  
Degraded Land ◽  
Lampang Province

scholarly journals Osmotic treatment, growth regulator and rooter in Tabebuia roseoalba (RIDL.) Sandwith seeds for direct sowing

2020 ◽  
Vol 42 ◽  
Author(s):  
Alexandre Carneiro da Silva ◽  
Maiara Pilar Palmeira da Silva ◽  
Rayssa Zamith ◽  
Gustavo Galetti ◽  
Fatima Conceição Márquez Piña-Rodrigues
Keyword(s):  
Seedling Establishment ◽  
Forest Restoration ◽  
Germination Rate ◽  
Seedling Emergence ◽  
Direct Seeding ◽  
Germination Test ◽  
Toxicity Effect ◽  
Induced Stress ◽  
Osmotic Treatment ◽  
Direct Sowing

Abstract: Direct seeding is a technology that reduces the costs of forest restoration projects and favors species which are difficult to establish for seedlings. The seeds osmotic treatment to accelerate and standardize germination and induce tolerance to environmental stresses may favor seedling establishment in field through direct sowing and contribute to the greater efficiency of this technique. With the purpose of favor seed germination and seedling establishment under direct seeding conditions in the field, Tabebuia roseoalba osmoprimed seeds in polyethylene glycol (PEG) solution and unconditioned seeds were treated with isolated and/or combined solutions of plant growth regulators (PGR) and rooting (RTG). These seeds were submitted to germination test and evaluated for percentage germination rate, germination speed index and normal seedlings, and to seedling emergence test by direct field seeding. RTG had a toxic effect on T. roseoalba seeds. Osmoconditioning induced stress tolerance by RTG during germination and on seedling establishment. PGR treatment favors seedling emergence in field conditions and alleviates the toxicity effect caused by RTG. These treatments have great potential for use in direct sowing of T. roseoalba seeds.

scholarly journals EFETIVIDADE NA RESTAURAÇÃO DE FLORESTAS TROPICAIS: COMO O DESEMPENHO DIFERENCIAL DAS ESPÉCIES E O CONTEXTO ECOLÓGICO INFLUENCIAM O ESTABELECIMENTO E OCUPAÇÃO

Nativa ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 442-453
Author(s):  
Juliano de Paulo dos Santos ◽  
Cléber Rodrigo de Souza ◽  
Michele Aparecida Pereira da Silva ◽  
Joelma de Paulo Silva ◽  
Soraya Alvarenga Botelho
Keyword(s):  
Forest Restoration ◽  
Global Climate ◽  
Average Diameter ◽  
Direct Seeding ◽  
Ecological Functions ◽  
Ecological Processes ◽  
Canopy Area ◽  
Restoration Strategies ◽  
Tropical Forest Restoration ◽  
Number Of Individuals

Restaurar as florestas tropicais é essencial para enfrentar mudanças climáticas globais, manter e conservar a diversidade e os serviços ecossistêmicos. Foi analisado o estabelecimento e ocupação em três estratégias de restauração florestal (Plantio em Mudas em Área Total (PAT), Ilhas de Diversidade (ID) e Semeadura Direta (SD)) da vegetação florestal associada a cursos d’água.  Foram avaliados: o número de indivíduos, intensidade de perfilhamento, biomassa acima do solo, área de copa, diâmetro e altura médios, por indivíduo, em 58 unidades amostrais (10 x 30 m) distribuídas entre as estratégias após 2,5 anos da implantação. Também foram avaliadas as principais espécies e suas similaridades entre as estratégias. A SD proporcionou maior efetividade quanto ao Número de indivíduos, Biomassa e Área de Copa, enquanto, a intensidade de perfilhamento foi maior nas ID e não houveram diferenças quanto a média de altura e diâmetro. Cada estratégia apresentou um conjunto particular de espécies de maior sucesso e as mais similares foram aquelas que utilizaram mudas (PAT e ID). A estratégia SD destacou-se no estudo, especialmente quando considerados aspectos ecológicos e custos envolvidos. As espécies contribuíram na diferenciação das estratégias, pois, proporcionaram funções ecológicas distintas que influenciam processos ecológicos em nível de comunidade e indivíduos. Palavras-chave: restauração florestal; nucleação; semeadura direta; plantio de mudas; floresta Amazônica.   Effectiveness in the tropical forest restoration: how the differential performance of species and ecological context affect the establishment and occupation   ABSTRACT: Restoring tropical forests is essential to address global climate change, to maintain and conserve diversity and ecosystem services. The establishment and occupation of three forest restoration strategies (Total Seedling Planting (PAT), Diversity Islands (ID) and Direct Seeding (SD)) of the forest vegetation associated with watercourses was analyzed. It were evaluated: the number of individuals, resprouting intensity, above-ground biomass, canopy area, average diameter and height, per individual, in 58 sample units (10 x 30 m) distributed among the strategies after 2.5 years of implantation. It was also evaluated the main species and their similarities between the strategies. The SD provided more effective as the number of individuals, biomass and treetop area, while the intensity of resprouting was higher in ID and there were no differences in mean height and diameter. Each strategy presented a particular set of most successful species and the most similar were those that used seedlings (PAT and ID). The highlight of the SD strategy is magnified when considering ecological perspectives, and social costs involved. The species contributed to the differentiation of strategies, because they provide distinct ecological functions that influence ecological processes at the community level and individuals. Keywords: forest restoration; nucleation; direct seeding; seedling planting; Amazon rainforest.

scholarly journals Vegetation regeneration on natural terrain landslides in Hong Kong: direct seeding of native species as a restoration tool

2022 ◽  
Author(s):  
Ying Ki Law ◽  
Calvin Lee ◽  
Chun Chiu Pang ◽  
Billy Hau ◽  
Jin Wu
Keyword(s):  
Hong Kong ◽  
Seed Germination ◽  
Native Species ◽  
Forest Restoration ◽  
Germination Rate ◽  
Direct Seeding ◽  
Species Selection ◽  
Seed Coating ◽  
Pioneer Species ◽  
Coating Formulation

Landslides are common in tropical and subtropical regions with hilly terrains and heavy rainstorms, which cause significant economic, ecological, and social impacts. Natural forest succession is usually slow on landslide scars due to poor soil structure and the lack of seeds of woody plant seeds, and often comes with a higher risk of repeated landslide. Ecological forest restoration has recently been suggested as an effective alternative to restore the exposed landslide scars, however, a comprehensive study to identify effective landslide restoration strategies remains lacking, particularly associated with seed treatment methods and species selection. Here we evaluated the effectiveness of different seed coating treatments of both pioneer and later successional tree species of different seed sizes on seed germination in a one-year study on three landslides in Hong Kong. Our results show that bare seeds had germination rates of 17 to 67% across all selected species (n=7). Biochar-dominant seed coating formulation boosted an additional 9.33 (SE= 0.04) in seed germination rate, while the clay-dominant seed coating formulation did not show significant effect on germination. Our results also show that medium and large-seeded non-pioneer species have significantly higher germination rates than pioneer species. These results collectively suggest that direct seeding using a biochar seed coat is a manageable and useful method to enhance tree seed germination—an essential first step to restore the forests after landslide disturbances in Hong Kong, with potential to be extended to other humid tropical and subtropical forests.

scholarly journals EVALUATION OF DIRECT SEEDING AND SEEDLING PLANTING OF TWO NEOTROPICAL TREE SPECIES WITH THE USE OF NATURAL INPUTS

2017 ◽  
Vol 41 (4) ◽  
Author(s):  
Alexandre Hüller ◽  
Geraldo Ceni Coelho ◽  
Géri Eduardo Meneghello ◽  
Silmar Teichert Peske
Keyword(s):  
Tree Species ◽  
Forest Restoration ◽  
Low Cost ◽  
Forest Litter ◽  
Direct Seeding ◽  
Litter Addition ◽  
Neotropical Tree ◽  
Litter Cover ◽  
Native Tree Species ◽  
The Cost

ABSTRACT Direct seeding of native tree species could be a low cost alternative for forest restoration. The paper aimed at evaluate direct seeding of two species from Southern Brazil, Schinus terebinthifolius Raddi and Citharexylum solanaceum Chamisso, comparing with seedling planting. The effects and costs of forest topsoil and forest litter addition were also evaluated in the direct seeding. The experiment was accomplished during 2009/2010. The treatments of direct seeding were CONTROL - control without seeding, TSEED - only seeding, TLITTER - seeding with forest litter cover, TTOPSOIL - seeding with forest topsoil, TBOTH - seeding with forest litter and with forest topsoil, LTCONTROL - control with forest litter and forest topsoil. The species C. solanaceum did not germinate at field. The species S. terebinthifolius had higher germination in the TBOTH, either at 30 days (21.6%) and 360 days (9.0%), which correspond to a density of 9,000 plants · ha-1 after 360 days. The litter singly contributed less to the survival than the forest soil, however a synergic effect between the two inputs was observed. The TBOTH presented a higher growth (42 cm of plant height at 360 days). The costs of direct seeding with inputs (singly or combined) were higher than the conventional seedling planting in relation to the area unity. However, the cost of direct seeding without addition of inputs was higher considering the cost per survivor seedlings. Planted seedling of S. terebinthifolius reached 88.5 cm of height after 360 days. Seedlings of S. terebinthifolius generated by direct seeding reached the average of 5.1 and 42.0 cm of height in the TSEED and TBOTH treatments, respectively.

Dynamics of CO2 emission from chernozems under agricultural use

2017 ◽  
Vol 4 (3) ◽  
pp. 43-49
Author(s):  
M. Miroshnychenko ◽  
O. Siabruk
Keyword(s):  
Carbon Dioxide ◽  
Agricultural Practices ◽  
Growing Season ◽  
Warm Period ◽  
Direct Seeding ◽  
Soil Tillage ◽  
Plant Residues ◽  
Hydrothermal Conditions ◽  
Organic Mineral ◽  
Mineral System

Aim. The comparison of the effect of hydrothermal conditions and various agricultural practices on the emission of CO 2 from chernozems in the Left-Bank Forest-Steppe of Ukraine. Methods. The dynamics of the intensity of carbon dioxide emissions from chernozem calcic (typical chernozem – in Ukrainian classifi cation) was studied during the growing season of 2011–2012. The observations were based on two fi eld experiments with various methods of soil till- age (6–7 years from the beginning of the experiment) and fertilization systems (21–22 years from the beginning of the experiment). Particularly, plowing at 20–22 cm, disking at 10–12 cm, cultivation at 6–8 cm and direct seeding using Great Plains drill were studied among the soil tillage methods. Mineral system (N 45 P 50 K 45 ), organic system (manure 8 t/ha) and combined organic-mineral system (manure 8 t/ha + N 45 P 50 K 45 ) were studied among fertilization systems. The intensity of CO 2 fl ux was determined using the non-stationary respiratory chambers by the alkaline absorption method, with averaging of the results during the day and the frequency of once a month. Results. During the warm period, the emission of carbon dioxide from the soil changes dynamically depending on temperature and humidity. The maximum of emission coincides with the periods of warm summer showers in June-July, the minimum values are characteristic for the late autumn period. The total emission losses of carbon in chernozems over the vegetation period ranged from 480 to 910 kg/ha and varied depending on the methods of tillage ± (4.0–6.0) % and fertilization systems ± (3.8–7.1) %. The changes in the intensity of CO 2 emission from the soil under different methods of soil tillage are associated with hydrothermal regime and the depth of crop residues location. The biggest difference is observed im- mediately after tillage, but in the spring period the differences are only 12–25 %, and after drying of the top layer of soil become even less. Direct seeding technology provides the greatest emission of CO 2 from chernozem, which is fa- cilitated by better water regime and more complete mineralization of plant residues on the soil surface. Annual losses of carbon are the least under disking of soil at 10–12 cm. The changes in the intensity of CO 2 emission from the soil under different fertilization systems are associated with the involvement of the additional organic matter from plant residues and manure to the microbiological decomposition. The greatest emission was observed under the organic- mineral fertilization system, which increased the loss of carbon by 7–8 % in comparison with the mineral system in the unfavorable hydrothermal year and by 11–15 % in the more favorable year. These differences are observed mainly during the fi rst half of the growing season when there is a clear tendency to increase the intensity of soil respiration. Conclusions. The hydrothermal conditions of the warm period of the year are decisive in the formation of the CO 2 emission fl ow from chernozems. Due to the improvement of agricultural practices, emissions might be reduced but not more that by 15 % of natural factor contribution.

Bibliometric Analysis of Web of Science–Indexed Papers on Concrete Segmental Bridges

PCI Journal ◽  
2015 ◽  
Vol 60 (1) ◽  
Author(s):  
José R. Martí-Vargas ◽  
Emili García-Taengua ◽  
W. Micah Hale ◽  
Mohamed K. ElBatanouny ◽  
Paul H. Ziehl
Keyword(s):  
Bibliometric Analysis ◽  
Web Of Science ◽  
Segmental Bridges
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