scholarly journals EFFECTIVE PRECIPTATION, SOIL LOSS AND PLANT COVER SYSTEMS IN THE CAATINGA BIOME, BRAZIL

2016 ◽  
Vol 29 (4) ◽  
pp. 956-965
Author(s):  
HELBA ARAÚJO DE QUEIROZ PALÁCIO ◽  
JACQUES CARVALHO RIBEIRO FILHO ◽  
JÚLIO CÉSAR NEVES DOS SANTOS ◽  
EUNICE MAIA DE ANDRADE ◽  
JOSÉ BANDEIRA BRASIL
Keyword(s):  
Water Depth ◽  
Soil Loss ◽  
Plant Cover ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Land Uses ◽  
Forest Region ◽  
Caatinga Biome ◽  
Cover Systems ◽  
Precipitation Events

ABSTRACT The objective of this work was to evaluate the influence of anthropic activities on the effective precipitation (eP) and soil loss in watersheds under different land uses in a tropical dry forest region. The experimental area was located in the central part of the State of Ceará, Brazil. The land uses evaluated were: fallow Caatinga (FC), thinned Caatinga (TC) and deforested Caatinga followed by a burning procedure and pasture cultivation (DBP). The areas were monitored in the rainy season (January to May, 2010), when 57 natural rainfalls occurred, totaling 941 mm of precipitation. The eP and sediment productions were quantified by the sum of all occurrences during the study period, and the soil loss was represented by suspended and dragged sediments. The eP was 15.13 mm and sediment produced was 167.81 kg ha-1 in FC conditions. The eP values was smaller (11.28 mm) in the watershed with TC, which had soil loss sum of 42.04 kg ha-1. The largest annual eP was found in the DBP area, with 112.88 mm yr-1 of accumulated water depth, which also showed the greater annual soil loss (3114.97 kg ha-1). The greatest interference of plant cover in the two variables evaluated occurred in the first precipitation events, when the plants were not yet fully developed.

Diagnosis of the Environmental and Economic Social Sustainability of the Faita Enclosure of the Canton Quevedo-Ecuador

2017 ◽  
Vol 3 (03) ◽  
Author(s):  
Edith Lorena Escobar Morán ◽  
Moises Arturo Menacé Almea ◽  
Cesar Varas Maenza ◽  
Sandra Cecilia Muñoz Macias
Keyword(s):  
Cover Crops ◽  
Sustainability Assessment ◽  
Production Systems ◽  
Plant Cover ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Planted Forests ◽  
Tropical Fruit ◽  
Socioeconomic Environment ◽  
The Matrix

The aim of this study was to perform the agroecological diagnosis to determine the sustainability of agricultural production system Campus Faita of Quevedo Canton province of Los Rios Ecuador applying the matrix of Battelle Columbus for the characterization of the physical, abiotic, socioeconomic environment and which also it served to extract sustainability indicators to assess production systems Campus. Faita is in the tropical dry forest area where the predominant plant cover crops are planted forests and grass where there is almost no native vegetation. The average farm area is 5 hectares, production is diversified with a pattern of prevalent crops such as cocoa, tropical fruit mostly associated, timber cultivation and short cycle crops corn and soybeans. The economy of farmers is critical, although the average income in the area is within the official indexes. There are ecological and pollution by burning action, noise problems (97%), deforestation (98%) and especially by the aerial spraying of banana close, prolonged drought in the summer. The pressure on land use is moderate, subsistence production systems account for 49%. Sustainability Assessment qualifies as sustainable when discussing environmental or production indicators, but social and economic development is not sustainable where systems generally are not sustainable as it achieves an overall average of 55, 52%.

scholarly journals Trade-offs between ecosystem services and alternative pathways toward sustainability in a tropical dry forest region

2016 ◽  
Vol 21 (4) ◽  
Author(s):  
Francisco Mora ◽  
Patricia Balvanera ◽  
Eduardo García-Frapolli ◽  
Alicia Castillo ◽  
Jenny M. Trilleras ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Alternative Pathways ◽  
Forest Region ◽  
Trade Offs

Idiosyncratic responses of aquatic and terrestrial insects to different levels of environmental integrity in riparian zones in a karst tropical dry forest region

2017 ◽  
Vol 56 (4) ◽  
pp. 459-465 ◽  
Author(s):  
Fabio O Roque ◽  
Elaine C Corrêa ◽  
Francisco Valente-Neto ◽  
Greici Stefan ◽  
Gabriela Schulz ◽  
...  
Keyword(s):  
Tropical Dry Forest ◽  
Dry Forest ◽  
Riparian Zones ◽  
Forest Region ◽  
Environmental Integrity ◽  
Terrestrial Insects ◽  
Different Levels

Hummingbird-plant visitation networks in agricultural and forested areas in a tropical dry forest region of Guatemala

2019 ◽  
Vol 161 (1) ◽  
pp. 189-201 ◽  
Author(s):  
Michelle Bustamante-Castillo ◽  
Blanca Estela Hernández-Baños ◽  
María del Coro Arizmendi
Keyword(s):  
Tropical Dry Forest ◽  
Dry Forest ◽  
Forest Region ◽  
Forested Areas

scholarly journals Hymenochaete cifuentesii, H. potosina, and H. raduloides spp. nov. from the tropical dry forest of Mexico

Mycotaxon ◽  
2018 ◽  
Vol 133 (3) ◽  
pp. 499-512 ◽  
Author(s):  
Magdalena Contreras-Pacheco ◽  
Ricardo Valenzuela ◽  
Tania Raymundo ◽  
Leticia Pacheco
Keyword(s):  
Tropical Dry Forest ◽  
Dry Forest

Dynamic seed zones to guide climate-smart seed sourcing for tropical dry forest restoration in Colombia

2021 ◽  
Vol 490 ◽  
pp. 119127
Author(s):  
Tobias Fremout ◽  
Evert Thomas ◽  
Kelly Tatiana Bocanegra-González ◽  
Carolina Adriana Aguirre-Morales ◽  
Anjuly Tatiana Morillo-Paz ◽  
...  
Keyword(s):  
Forest Restoration ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Seed Zones ◽  
Dry Forest Restoration ◽  
Seed Sourcing

scholarly journals Spondias tuberosa Arruda (Anacardiaceae), a threatened tree of the Brazilian Caatinga?

2016 ◽  
Vol 77 (3) ◽  
pp. 542-552 ◽  
Author(s):  
J. Mertens ◽  
J. Germer ◽  
J. A. Siqueira Filho ◽  
J. Sauerborn
Keyword(s):  
Tropical Dry Forest ◽  
Threat Assessment ◽  
Red List ◽  
Dry Forest ◽  
International Union ◽  
Population Decrease ◽  
Domestic Ruminants ◽  
Spondias Tuberosa ◽  
Iucn Assessment ◽  
Additional Income

Abstract Spondias tuberosa Arr., a fructiferous tree endemic to the northeast Brazilian tropical dry forest called Caatinga, accounts for numerous benefits for its ecosystem as well as for the dwellers of the Caatinga. The tree serves as feed for pollinators and dispersers as well as fodder for domestic ruminants, and is a source of additional income for local smallholders and their families. Despite its vantages, it is facing several man-made and natural threats, and it is suspected that S. tuberosa could become extinct. Literature review suggests that S. tuberosa suffers a reduced regeneration leading to population decrease. At this juncture S. tuberosa cannot be considered threatened according to the International Union for Conservation of Nature Red List Categories and Criteria, as it has not yet been assessed and hampered generative regeneration is not considered in the IUCN assessment. The combination of threats, however, may have already caused an extinction debt for S. tuberosa. Due to the observed decline in tree density, a thorough assessment of the S. tuberosa population is recommended, as well as a threat assessment throughout the entire Caatinga.

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