ecological consequence
1.Based on the seventy-odd-day investigation made in the interior of the Taklimakan Desert and Keriya River vally, the author of this paper mainly discusses the ecological problems in Daliyaboi Oasis, indicates that it was the interaction of natural and artificial factors that brought about the ecological problems, which resulted in the disorder of eco-logical balance as well as serious ecological consequence, and puts forward some specific protecting countermeasures to improve the ecological environment in this area.
2.The systematic and synthetic description and review of lianas, chiefly in tropic, are described and reviewed in this paper, in which some ecological questions of lianas are included distributed as follows: (1) The conception and significances of lianas; (2) Liana flora and its distribution in the world; (3) Its biological characteristics; (4) Its ecological characteristics; (5) Its abundance (density) and species-richness in tropical forest; (6) The ecological significance of lianas-aggregation in gap and the variance of its abundance in the process of forest succession; (7) The relationship between lianas and trees; (8) The positive and the negative contribution of lianas to tropical forest; (9) The types of climbing mechanism of lianas and its competitive predominance; (10) Global climate-variance (CO2 increase) promotes abundance of lianas to increase, and some ecological consequence are resulted from which.
3.The engineering construction project, especially the state key investment project, often has huge investment, long construction period, technological and economy risk , the great potential impact to the ecological environment, uncertain factors. So these characteristics incur that the factual project deviate from the consequence that people expect by a certain degree.
