The soil map of the wet zone of Sri Lnaka showing the benchmark sites R Mapa,S Somasiri,S Nagarajah - Benchmark Soils of the Wet Zone of Sri Lanka 被引量: 48发表: 1999年 Plant populations and yield of rainfed maize (Zea mays L.) grown in wet and dry seasons of the tropics [Sr...
"It's very informative. There is nothing else like it," Stepinski said. "There are maps of forest loss but no maps showing everything." The map tells a new story everywhere you look, from wetlands losses in the American Southeast to the devastation of the Aral Sea to deforestation in ...
Zones similar to those already drawn out for the celestial sphere were first introduced by the Pythagoreans. Parmenides of Elea (544-430 B.C.) distinguishes five of these zones, viz. a torrid zone, between the tropics of summer and winter, which was uninhabitable on account of heat; two ...
Jan Sevink, the Mountain Institute. The Cordillera Blanca Guide introduces the traveller to the climate, geology, and geography of this magnificent mountain range in the Peruvian Andes. It is the largest snow covered mountain range of the tropics, with a unique landscape and this is the only ...
The Robinson projection is a map projection of a world map which shows the entire world at once. It was specifically created in an attempt to find a good compromise to the problem of readily showing the whole globe as a flat image. ...
Replogle’s physical globe shows natural vegetational features of the deserts, tropics, grasslands, forests, Tundra, and ice caps. Political and vegetational maps are very popular and are used in a variety of map projections. Main Types of World Map Projections The Mercator is the most popular ...
the tropics and that hunting and trapping is the most geographically widespread threat to mammals and birds. Additionally, current representations of human pressure underestimate the overall pressure on biodiversity, due to the exclusion of threats such as hunting and climate change. Alarmingly, this ...
Below there is a code snippet showing how to call this function in the R environment. As the function was tested over MapBiomas products, an example with this data is shown to understand the six inputs needed to execute the function as per Fig. 2: (i) a vector file for the studied ...
The authors describe a program sponsored by farmers in Canada to import seasonal agricultural workers to Ontario from the Caribbean and Mexico. "On the bas... RG Cecil,GE Ebanks - 《International Migration》 被引量: 10发表: 1992年 Discovering Soils in the Tropics: Soil Classification in Ghana...
C. reticulatum and Cicer echinospermum were estimated to have diverged around 15.3 (14.0 to 16.2) Ma, which is higher than previous estimates and might be influenced by: (i) wild accessions conserved at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) representing ...