Cultivated land is an important prerequisite and guarantee for food production and security, and the change of cultivated land resources in China has always been concerned.National land survey is an effective way to accurately grasp the area and distribution of cultivated land resources.However, due to the differences in technical means and statist
The influence of the strategy to company performance is the most widely researched topic until now.Various literatures state that the influence of company performance to strategy does not stand alone, but is affected by a variety of external and internal contingency factors.The discussion in Collectibles this paper begins with a description of the
The limestone region in Southwest Guangxi is defined as a priority area for biodiversity conservation and research not only at provincial but also at national level.Through in-depth investigation in the two nature reserves of this region, 20 angiosperm species from 20 genera and 17 families were found as new records for the flora of Guangxi, includ
Simulations are conducted with a cloud-resolving numerical model to examine the transformation of a weak incipient mid-level cyclonic vortex into a tropical cyclone.Results demonstrate that two distinct pathways are possible and that development along a particular pathway is sensitive to model physics and initial conditions.One pathway involves a s