Journal of Environmental Sciences Juniper Publishers

  Abstract The relation of evaporation deriving meteorological parameters particularly wind speed, solar radiation and vapor pressure deficit with evaporation schemes namely Class A pan evaporation (Ep), potential evapotranspiration (PET) and reference evapotranspiration (ETo) at Tharandt, Germany for the summer half-year of 2004-2013 was investigated. PET was calculated using three methods: 1. Haude (2005), 2. Wendling (1991), 3. Penman (1963); whereas, ETo was calculated according to Food and Agricultural Organization-Penman Monteith method. The results showed that the evaporatin schemes were mainly driven by solar radiation (R2 ≥ 0.69, RMSE ≤ 0.76mm d-1) and vapor pressure deficit (R2 ≥ 0.53, RMSE ≤ 0.92mm d-1). The effect of wind speed at 2m in deriving the evaporation schemes was negligibly small (R2 < 0.12). An equation is derived for estimation of Ep from measured meteorological parameters alone which makes this study special. In another scenario, Class A ...

  Abstract Soil salinity is one of the most important abiotic factors that adversely effect on plant growth. In addition, nursery and greenhouse industry is under pressure to recover and recycle fertilizer solution and wastes. Most of these contains significantly higher salt concentrations that could cause harm to susceptible species of plants. Rose plants are the most attractive plants in all our world. Although, the roses face serious salt stress. Globally, soil salinity is naturally occurring or by the usage of poor quality of water and the other activities of humans or use of excessive amount of fertilizer applications. Although, the level of salts tolerance among various cultivars and species can be different in roses. In this review paper, we will discuss the responses of roses to salinity and ways to combat salinity in roses production. Read More about this Article: https://juniperpublishers.com/ijesnr/IJESNR.MS.ID.556155.php Read More Juniper Publishers G...

  Abstract Biomass is a renewable energy source that, due to its high seasonality, needs to be stored, handled and managed in suitable conditions for its optimum use. Sustainable storage is, therefore, a key process in which biomass can lose much of its qualities as fuel. The article presents an exhaustive bibliographic review of the factors that affect the quality of biomass during storage and the interactions that occur among them. Humidity, type of product, granulometry, size of the stockpile, airflow, temperature, and microbial action are analysed as the main factors affecting biomass during storage, and the results are compared with the tests that have been carried out on biomass from olive groves and olive oil industry. Recommendations are presented so that, using a correct storage method, losses, degradation and self-ignition risks are reduced and the energy quality of the fuel could be improved, taking advantage of the storage process to optimize the net ener...