Journal of Environmental Sciences Juniper Publishers

  Juniper Publishers- Open Access Journal of Environmental Sciences & Natural Resources Transpiration/Evaporation Ratio in Prunus Fremontii and Marianna 2624 over a 4-Day Period of Drought Authored by Riccardo Lo Bianco Abstract Drought stress represents one of the major environmental limitations to crop production in a large portion of the Earth's surface. Natural genetic resources are one of the most powerful weapons against environmental stress. In such contest, the behaviour in terms of water loss of two species,   P. fremontii   (slower growing) and Marianna 2624 (faster growing), native to arid and humid regions respectively, was tested. Transpiration (T) and evapo transpiration (ET) rates and soil water content (SWC) were measured in the two species under controlled conditions. Evaporation rate from the soil surface was obtained by difference, and an average transpiration/evaporation ratio (T/E) was calculated to determine the relative importance of the two processes. So

  Juniper Publishers- Open Access Journal of Environmental Sciences & Natural Resources Changing Temperature and Rainfall Patterns of Uttarakhand Authored by Ashutosh Mishra Abstract Nested in the lap of mighty Himalayas, the Indian state of Uttarakhand is climatologically very sensitive and ecologically fragile. Owing to its natural beauty, religious tone and rich biological succession the state is known as 'Land of Gods' and 'land of austerity.' However, increasing population pressure is posing a great challenge to the natural harmony of this vulnerable state. During recent years the state has recorded a significant increase in climatological disasters and for that the humanogenic enhancement of regional atmospheric entropy is being seen as the cause. Present paper analyses temperature and rainfall changes that the state has witnessed during the last century. The study is mainly based on the district temperature and rainfall series of 102 years obtained from India