The research on relationship between hydrological characteristics and ecological factors in Picea crassifolia forest of Dayekou basin in Qilian mountains
Be aimed at lack systematicness weak link of research on function of water conservation at the larger watershed scale,this subject chosen Dayekou basin for experimental basin,made full use of the hwastory of Dayekou basin in Qilian Mountains and the advantage of exwasting ecological monitoring facilities equipment, through the indexes such as precipitation, interception of canopy and stem, moss litter interception, mowasture and temperature of soil, snow ablation, permafrost thawing, soil evaporation, runoff, stand site condition, meteorological factors, stand structure, moss litter structure, soil characterwastics. By means of characterwastic parameter statwastics, multivariate function and correlation coefficient. Research conclusion was that: (1) Using laser radar monitoring data about reservoir water level changes, the relationship between water level and river runoff had been analyzed, and the rivers runoff change rule of Dayekou basin in Qilian Mountains had been discussed.(2) Using observation data of Dayekou basin in Qilian Mountains from 1994 to 1994 years, the relationship between the air temperature, precipitation, soil temperature, freezing and thawing of permafrost and snow melt and other factors and river runoff had been analyzed, and the variation trends of temperature, precipitation and runoff had been concluded. (3) Through the large fixed sample survey in Dayekou basin in Qilian Mountains, the ecological factor relationship between moss and litter,and the soil water ant thermal characteristics, and soil properties and soil evaporation had been concluded.In this paper, scientific basis and reference for ecological protection and construction of mountain forest and water resources had been provided.
function of conservation waterhydrological characteristicsecological factorsPicea crassifolia forestQilian mountains
NETL
NSTL
万方数据
维普
