This paper, aiming at the factors of price fluctuation of rare sources in foreign trade, presents a method under many constraints, establishes a price fluctuation correlated network of rare resource in foreign trade, which is used to analyze the complexity of price fluctuation from non-dimensional, coefficient, and joints. Combined with vector self\|regress model, vector error correction model and normalized least\|square regress, a model is set up to analyze the factors of price fluctuation of rare resource in foreign trade with results showing that real GDP and real trading amount are the primary factors, and US dollar index, gold price, gambling proportion are secondary.  

The traditional petroleum theory is helpful to search oil in sedimentary rocks. However, as oil-gas exploration has been intensively concentrated on sedimentary regions, the oil-bearing sedimentary regions become less and less. To look for oil in non-sedimentary areas caught more and more attention. This paper analyzes the oil-gas potential in the volcanic rocks worldwide, and studies the oil-gas reservoir formation conditions of volcanic rocks in basins. The volcanic-hosted oil-gas reservoir is normally located at the lower sequences, where with a low exploration but high potential shall be a new vital oil-gas exploration area. Some volcanic basins in circumPacific, Mediterranean sea and middle Asia are of good oil-gas reservoir-forming conditions, where can become the major areas for volcanic-hosted oil-gas.

A sharp falling in oil price and a lack in circulating fund, during a deteriorating financial crisis, impacts the foreign oil companies with high debts, even engenders difficulties in some oil production countries with single industrial structure, at the same time, brings some opportunities for Chinese enterprises to enter foreign markets and to acquire foreign assets. This paper, based on an analysis of the past economic crisis, presents a national strategy for oil-gas that Chinese oil companies acquire foreign oil-gas exploration blocks with strong competitiveness in human resources, capital, technology and geographic politics.

This paper, based on China's land consolidation partition and methods, presents a partition plan for land consolidation, summarizes some typical modes of sustainable development in various areas, providing a reference for sustainable land consolidation in various areas.