نتایج جستجو برای: chilean arid zone
تعداد نتایج: 133238 فیلتر نتایج به سال:
Amongst Asian countries India is one of the most vulnerable countries to climate change. During the past century, surface temperature in India has shown a significant increasing trend. In this paper, we have investigated behavior of mean monthly temperature during the period 1901-2001 over four agroclimatic zones of India and also tried to detect structural change in the temperature series. A s...
tourism as a growing industry needs special attention in developing countries. during last decades, nature based tourism has been growing faster than other tourism fields and it seems to grow even faster. ever growing demand for nature based tourism emphasizes the necessity of a holistic planning for preserving environment against degradation. objective of this study is to present a nature base...
The productivity of olive trees in arid and semi-arid environments is closely linked to irrigation. It is necessary to improve the efficiency of irrigation techniques to optimise the amount of olive fruit produced in relation to the volume of water used. Partial root-zone drying (PRD) is a water saving irrigation technique that theoretically allows the production of a root-to-shoot signal that ...
The value of geographical information systems and remote sensing as tools for land and resource management is now widely recognised and their application well documented. Better integration of the technologies offers the potential, however, for developing more powerful and useful tools for land and resource management. This paper focuses on the integration of image data with geographical inform...
European chickens were introduced into the American continents by the Spanish after their arrival in the 15th century. However, there is ongoing debate as to the presence of pre-Columbian chickens among Amerindians in South America, particularly in relation to Chilean breeds such as the Araucana and Passion Fowl. To understand the origin of these populations, we have generated partial mitochond...
1. Soil Formation is a Global Natural Process 2. Factors of Soil Formation 3. Stages of Soil Formation 4. Processes of Soil Formation 5. Genesis of Soils under Different Ecologic Conditions 5.1. Genesis of Soils under Conditions of Cryogenesis 5.2. Genesis of Soils of Forest Landscapes in a Zone of Moderate Climate 5.3. Genesis of Soils in Landscapes of Steppes and Prairies 5.4. Genesis of Soil...
Anti-Diabetic Action of Cydonia oblonga Seed Extract: Improvement of Glucose Metabolism via Activation of PI3K/AKT Signaling Pathway Dan Tang1, Lian-Zhen Xie1, 2, Xue-Lei Xin1, and H. A. Aisa1* 1The Key Laboratory of Plant Resources and Chemistry of Arid Zone and State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and ...
There are significant issues and problems in the integration of remotely sensed data and GIS due to the differences in data characterisation, data structure and data processing philosophy between the two technologies. Difficulties exist particularly in handling large data volumes in GIS which are unavoidable when using remotely sensed imagery. This paper focuses on the integration of image data...
We describe the songs and courtship displays of three closely related hummingbirds, the Peruvian Sheartail (Thaumastura cora), Oasis Hummingbird (Rhodopis vesper), and the endangered Chilean Woodstar (Eulidia yarrellii). The Peruvian Sheartail and Oasis Hummingbird sing complex multisyllabic songs, while the Chilean Woodstar’s song is monosyllabic and simple. Like North American “bee” hummingbi...
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