نتایج جستجو برای: forest and pasture coverage
تعداد نتایج: 16859084 فیلتر نتایج به سال:
The analysis of the state destructive block in gray forest soils Novosibirsk region was carried out. Forest, meadow under pasture and vegetable agrocenosis were selected as objects study. Soil-zoological soil-microbiological methods used work. biomass soil microorganisms, basal respiration, metabolic coefficient, species richness total numbers oribatid mites studied. Strong changes studied para...
Tropical montane cloud forests (TMCFs) depend on predictable, frequent, and prolonged immersion in cloud. Clearing upwind lowland forest alters surface energy budgets in ways that influence dry season cloud fields and thus the TMCF environment. Landsat and Geostationary Operational Environmental Satellite imagery show that deforested areas of Costa Rica's Caribbean lowlands remain relatively cl...
Logging, cattle raising, and agricultural activities have caused the destruction of most forested areas in Costa Rica. In some middle and highlands the abrupt topography delayed the complete destruction of montane forest. Consequently, some fragments of almost pristine forest remain along streams that run in deep canyons. Frequently, these remnants serve as corridors between larger forested are...
Free and uncontrolled pasture grazing by animals may decrease soil aggregate stability through reductions in plant cover and subsequent soil organic C, and trampling. This could expose the soil surface layer to degradation and erosion. The objective of this study was to determine the influence of pasture management (free grazing, controlled grazing and long-term non-grazing regimes) on aggregat...
•The breeding habits of Bufo coccifer were studied in northwestern Costa Rica between 1971 and 1974. This species breeds during the rainy season, at least from May through August. Males chorus from areas of shallow water. Their calls resemble those of Mexican representatives of the species in pulse rate and duration, but are closer to those of other Costa Rican and Panamanian populations in dom...
The Amazon and the Atlantic Forest are Brazilian biomes that suffered an intense land use cover change, marked by loss of native forest expansion agriculture livestock. This article aims to analyze change history propose a sustainable alternative for livestock as opportunity rural development in these biomes. statistics platform from Annual Mapping Project Land Use Cover Brazil (MapBiomas) were...
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