scholarly journals Soil macrofauna as a bioindicator of soil quality in successional agroforestry systems

2021 ◽  
Vol 10 (10) ◽  
pp. e580101019144
Author(s):  
Rafaela Martins da Silva ◽  
Rakiely Martins da Silva ◽  
Sandra Santana de Lima ◽  
Jianne Rafaela Mazzini de Souza ◽  
Jheny Kesley Mazzini de Souza ◽  
...  
Keyword(s):  
Soil Quality ◽  
Rainy Season ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Dry Season ◽  
Native Forest ◽  
Secondary Forests ◽  
Euterpe Oleracea ◽  
Soil Macrofauna ◽  
Time Of Collection

The objective of this study was to evaluate soil macrofauna as a bioindicator of soil quality in successional agroforestry systems and secondary forests. The study was conducted in the southern lower region of Bahia in Brazil, in two areas: a successional agroforestry system (AFS18) and native forest (NF).  AFS18 consists of two species: mahogany (Khaya ivorensis and Khaya grandifoliola), açaí (Euterpe oleracea), cacao (Theobroma cacau) and banana (Musa spp.).  Sampling was carried out in the dry (June) and rainy (October) seasons of 2019, and eight soil monoliths were collected in both areas.  A total of 889 individuals from the soil macrofauna were sampled. The highest frequency (RF) of taxons occurred in NF in the rainy season, and the groups that stood out were: Oligochaeta with 42% FR in ASF18, Formicide with 33.9% in NF and Isoptera with 58% in AFS18. The macrofauna structure of the soil varied according to the time of collection. The density of macrofauna individuals differed between areas only in the dry season. The highest number of ind.m² was observed in the area NF (378) when compared to ASF18 (196). TOC, Mg2+, Al3+ and CTC were related to AF on both occasions of collection and AFS18 in the rainy season, K+, P and pH were associated with AFS18 in the dry season. The diversity, equitability and richness of the soil macrofauna was greater in AF area. HFA18 in the rainy season was similar to NF, favoring colonization of the area by soil macrofauna organisms.

scholarly journals EVALUATION PERFORMANCE OF THREE Pennisetum GENUS GROWN ON PINES FOREST IN LEMBANG, WEST JAVA

Pastura ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 97
Author(s):  
Sajimin Sajimin ◽  
N. D. Purwantari
Keyword(s):  
Rainy Season ◽  
Crude Protein ◽  
Block Design ◽  
Production Quality ◽  
Agroforestry System ◽  
Dry Season ◽  
Pennisetum Purpureum ◽  
Forage Production ◽  
Crude Fibre ◽  
Shoot Production

Pines are the largest tree forests in West of Java so that they are very potential to be developed as an agroforestry system. Forage crop potentially to be cultivated in the agroforestry system. The aim of the research was to study the response of the grasses grown under pines forest. The experiment was conducted at pines forest area arranged in randomized complete block design. The treatments were 3 grasses (Pennisetum purpureum cv. Taiwan, P. purpureum (local) and Pennisetum purpureophoides (king grass). Data collected were productivity, agronomic performance (plant height, tiller), forage production and quality. The result shows that shoot production of Taiwan cultivar was significantly higher than local P. purpureum. It was produced 498.4 g/clump on rainy season and 287.0 g/clump at dry season. At dry season forage production was decreased by 39,9%/ha. Nutrient composition at rainy season, crude fibre of grass was 39.89%; Ca 0.04%; P 0.26%; ash 12.46%; energy 4239.5 kcal/kg and crude protein 8.23%; while at the mid of dry season crude fibre was 38.43%; Ca 0.035%; P 0.26%; ash 11,43%; energy 3943 kcal/kg and crude protein 8.94%. Key words: pines, forestry, forage, production, quality

scholarly journals Soil macrofauna under different land uses in the Colombian Amazon

2018 ◽  
Vol 53 (12) ◽  
pp. 1383-1391 ◽  
Author(s):  
Leonardo Rodríguez Suárez ◽  
Yuli Tatiana Paladines Josa ◽  
Erika Judith Astudillo Samboni ◽  
Karla Dayana Lopez Cifuentes ◽  
Ervin Humprey Durán Bautista ◽  
...  
Keyword(s):  
Land Use ◽  
Diversity Index ◽  
Principal Component ◽  
Agroforestry Systems ◽  
Native Forest ◽  
Land Uses ◽  
Soil Macrofauna ◽  
Land Use Effects ◽  
Colombian Amazon ◽  
Taxonomic Groups

Abstract: The objective of this work was to evaluate the soil macrofauna and the bioindicator taxonomic groups associated with different land uses in the Colombian Amazon. Twelve agroforestry arrangements were studied and compared with to the native forest and pasture. For each land use, six monoliths were randomly selected and divided into four layers (litter, and 0-10, 10-20, and 20-30 cm soil depths). The variables considered in the analysis of land use effects were: individuals per square meter, order richness, Shannon’s diversity index, and Pielou’s evenness index. The greatest values for soil macrofauna density and diversity occurred in the forest, in contrast with the pasture. The principal component analysis distinguished land use according to macrofauna diversity, separating the native forest from the other land uses. The cluster analysis indicated the potential of some agroforestry systems to conserve the values of soil macrofauna density and diversity similar to those of the forest. According to the analysis of indicator value, five taxonomic groups (Diplura, Pseudoscorpionida, Araneae, Chilopoda, and Gastropoda), identified as bioindicators, are associated with preserved sites because of the sensitivity of their populations.

scholarly journals Towards an ecological index for tropical soil quality based on soil macrofauna

2009 ◽  
Vol 44 (8) ◽  
pp. 1056-1062 ◽  
Author(s):  
Esperanza Huerta ◽  
Christian Kampichler ◽  
Violette Geissen ◽  
Susana Ochoa-Gaona ◽  
Ben de Jong ◽  
...  
Keyword(s):  
Soil Quality ◽  
Quality Index ◽  
Agroforestry Systems ◽  
Soil Quality Index ◽  
Soil Macrofauna ◽  
Ecological Index ◽  
Natural Systems ◽  
Simple Index ◽  
Earthworm Biomass

The objective of this work was to construct a simple index based on the presence/absence of different groups of soil macrofauna to determine the ecological quality of soils. The index was tested with data from 20 sites in South and Central Tabasco, Mexico, and a positive relation between the model and the field observations was detected. The index showed that diverse agroforestry systems had the highest soil quality index (1.00), and monocrops without trees, such as pineapple, showed the lowest soil quality index (0.08). Further research is required to improve this model for natural systems that have very low earthworm biomass (<10 g m-2) and a high number of earthworm species (5-7), as it is in the tropical rain forest, whose soil quality index was medium (0.5). The application of this index will require an illustrated guide for its users. Further studies are required in order to test the use of this index by farmers.

scholarly journals Photosynthetic performance and anatomical adaptations in Byrsonima sericea DC. under contrasting light conditions in a remnant of the Atlantic forest

2010 ◽  
Vol 22 (4) ◽  
pp. 245-254 ◽  
Author(s):  
Anandra S. Silva ◽  
Jurandi G. Oliveira ◽  
Maura da Cunha ◽  
Angela P. Vitória
Keyword(s):  
Net Photosynthetic Rate ◽  
Photosynthetic Rate ◽  
Rainy Season ◽  
Photosynthetic Pigment ◽  
Photosynthetic Performance ◽  
Dry Season ◽  
Limiting Factor ◽  
Native Forest ◽  
The Sun ◽  
Adaxial Epidermis

The photosynthetic dynamics of the tropical pioneer species, Byrsonima sericea DC., were studied during the regeneration process of a native forest by evaluating ecophysiological (gas exchange, chlorophyll a fluorescence and photosynthetic pigment contents) and anatomical parameters of plants in sunny and shady environments. Ecophysiological evaluations were carried out monthly for one year, encompassing both a dry and a rainy season. Byrsonima sericea DC. presents anatomical plasticity that enables it to establish in environments with contrasting light regimes. In sunny conditions, it produced a thicker leaf (about 420 mm) and flat adaxial epidermis, whilst in the shade, leaves had a thinner convex adaxial epidermis (about 395 mm). No differences were found in the compositions of the pigments in the different environments, however, during the dry season, the plants presented a significantly higher concentration of photosynthetic pigments. In the sun, plants showed decreases in Fv/F0 ratio (in the rainy season) and NPQ (in the dry season), but no difference was observed between plants that were in the sun or in the shade. A significantly higher net photosynthetic rate was found only in the rainy season in the plants in the sun, compared to shaded plants (9.9±0.8 and 7.4±0.3 µmol m-2s-1, respectively). Significant increase in transpiration was observed in plants in the shade during the dry season, but no alterations were observed in the water use efficiency. Ecophysiological data suggest that mainly plants overexposed to the sun underwent water limitations during the dry season and that, in the rainy season, these plants increased their net photosynthetic rate, possibly due to the greater drainage force resulting from increased growth during this period. Data suggest that anatomic alterations, namely the convex adaxial epidermis, could aid in the supply of light to shaded plants during both seasons, precluding changes in the pigments, such as the increase in chlorophyll b usually observed in shaded plants, but not detected in the present study. Another consequence of the greater quantity of light captured by these shade plants is that during the dry season their net photosynthetic rate was not different from that of plants in a sunny environment. However, when water was not a limiting factor, a better photosynthetic performance was observed in this pioneer specie in open spaces.

scholarly journals Short Communication: Soil carbon pools in different pasture systems

2016 ◽  
Vol 14 (1) ◽  
pp. e11SC01
Author(s):  
Francisco M. Jr. Cardozo ◽  
Romero F. V. Carneiro ◽  
Luiz F. C. Leite ◽  
Ademir S. F. Araujo
Keyword(s):  
Short Communication ◽  
Production Systems ◽  
Agroforestry System ◽  
Dry Season ◽  
Carbon Pools ◽  
Native Forest ◽  
Forage Grasses ◽  
Pasture Production ◽  
Soil Carbon Pools ◽  
Dry And Rainy Seasons

<p><span style="font-family: Times New Roman;"><span style="font-size: medium;">The aim of this study was to assess the carbon pools of a tropical soil where the native forest was replaced with different pasture systems. We studied five pasture production systems, including four monoculture systems with forage grasses such as <em>Andropogon</em>, <em>Brachiaria</em>, <em>Panicum</em>, and <em>Cynodon</em>, and an agroforestry system as well as a native vegetation plot. Greater availability of fulvic acid was detected in the agroforestry system as compared with that in the other systems. Higher lability of C was detected in the <em>Andropogon</em> system during the dry and rainy seasons and during the dry season in <em>Cynodon</em>. During the dry season, all pastures systems showed deficits in the net removal of atmospheric CO<sub>2</sub>. The structure and practices of the agroforestry system enables more carbon to be sequestered in the soil as compared with the monoculture pasture, suggesting that it is an important practice to mitigate climatic change and to improve soil quality.</span></span></p>

scholarly journals SOIL WORMS POPULATION IN VARIOUS LITTLE QUALITY (C, N, C / N, LIGNIN, AND POLYPHENOL) (CASE STUDY ON AGROFORESTRY LAND IN KELIMUTU NATIONAL PARK, ENDE REGENCY-INDONESIA)

2020 ◽  
Vol 8 (1) ◽  
pp. 124-130
Author(s):  
Agustinus JP Ana Ana Saga ◽  
Heny M.C. Sine ◽  
Laurensius Lehar
Keyword(s):  
Organic Matter ◽  
National Park ◽  
Agricultural Land ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Secondary Forests ◽  
Vegetable Crops ◽  
Earthworm Biomass ◽  
Agricultural Business

The agricultural business that is applied to the agroforestry system in Kelimutu National Park causes differences in the quality of organic matter of plants and earthworm populations, which have consequences for soil environmental services. The purpose of this study is to evaluate the earthworm population and the quality of plant organic matter in various agroforestry systems, intensive agriculture, and secondary forests. Sampling of organic matter from plants and earthworms was carried out in January - July 2016 (in the rainy season) in Agroforestry land: Clove (AF - CK), Cocoa (AF - KK), Candlenut (AF - KM), Coffee (AF - KM) ) compared to intensive agricultural land (monoculture vegetable crops) and secondary forests (SPL-HS), with 3 times repetition. Variables observed were in addition to the number of earthworms found and biomass worms (monolith sampling), also observed the quality of plant organic matter (C (Walkley and black), N (Kjeldahl), Lignin, and Polyphenol (Goering and Van Soest)) (Quadrants). The survey results show that the population of earthworms in SPL-AF is as low as the population in SPL-HS, an average of 3 m-2, while in the SPL-PI the average is only 0.24 m-2. Earthworm biomass in AF is about 69% smaller than worms found in SPL-HS; average earthworm biomass in SPL-AF 15 gm-2 while in SPL-HS an average of 47 gm-2; and the smallest worm biomass found in SPL-PI averaging around 2.3 gm-2. The average quality of organic matter of C-org plants in all SSTs was 38% to 50%, the highest C-org content of AF-CK, AF-KP and SPL-HS were significantly different (p <0.05) with C levels that were others (39% on average). The N and lignin levels of all plant organic matter are the same (P> 0.05), the average is 1.36% and 41.13%, respectively. The C / N ratio in AF - CK and HS is the same at an average of 52.78% or 58 times higher than AF - KK, AF - KM, and AF - KP, the average is 31.11% The polyphenolic levels of different plant organic matter significant (p <0.05) between SPL. The highest levels of polyphenols were on average 17.5% found in plant organic matter AF - CK and SPL - HS, while plant organic matter in other fields averaged 3.4%. Plant organic matter with polyphenol content> 2% will slow decay.

scholarly journals Alluvial soil quality in agroforestry systems and native forest of the Brazilian semiarid region

2015 ◽  
Vol 10 (38) ◽  
pp. 3731-3739 ◽  
Author(s):  
Antonio Lopes Nunes Alessandro ◽  
Cruz Portela Jeane ◽  
da Silva Dias Nildo ◽  
Laiane Ferreira Neto Maria ◽  
Ferreira da Silva Jucirema ◽  
...  
Keyword(s):  
Soil Quality ◽  
Alluvial Soil ◽  
Agroforestry Systems ◽  
Semiarid Region ◽  
Native Forest ◽  
Brazilian Semiarid

Litterfall production and fluvial export in headwater catchments of the southern Amazon

2007 ◽  
Vol 23 (3) ◽  
pp. 329-335 ◽  
Author(s):  
Evandro Carlos Selva ◽  
Eduardo Guimarães Couto ◽  
Mark S. Johnson ◽  
Johannes Lehmann
Keyword(s):  
Rainy Season ◽  
Riparian Zone ◽  
Stream Water ◽  
Dry Season ◽  
Native Forest ◽  
Lateral Movement ◽  
Mato Grosso ◽  
Litterfall Production ◽  
Forested Landscapes ◽  
Southern Amazonia

Resolving the carbon (C) balance in the Amazonian forest depends on an improved quantification of production and losses of particulate C from forested landscapes via stream export. The main goal of this work was to quantify litterfall, the lateral movement of litter, and the export of coarse organic particulate matter (>2 mm) in four small watersheds (1–2 ha) under native forest in southern Amazonia near Juruena, Mato Grosso, Brazil (10°25′S, 58°46′W). Mean litterfall production was 11.8 Mg ha−1 y−1 (5.7 Mg C ha−1 y−1). Litterfall showed strong seasonality, with the highest deposition in the driest months of the year. About two times more C per month was deposited on the forest floor during the 6-mo dry season (0.65 Mg C ha−1 mo−1) compared with the rainy season (0.3 Mg C ha−1 mo−1). The measured C concentration of the litterfall samples was significantly greater in the dry season than in the rainy season (49% vs. 46%). The lateral movement of litter increased from the plateau (upper landscape position) towards the riparian zone. However, the trend in C concentration of laterally transported litter samples was the opposite, being highest on the plateau (44%) and lowest in the riparian zone (42%). Stream-water exports of particulate C were positively correlated with streamflow, increasing in the rainiest months. The export of particulate C in streamflow was found to be very small (less than 1%) in relation to the amount of litterfall produced.

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