Based on the line investigation and the quadrat investigation , species multiplicity in guizhou litchi karst secondary forest were studied .
在线路调查和样方调查的基础上,研究了贵州荔波拉桥喀斯特次生林的物种多样性。
1999 Year winter , the summer season , uses the quadrat survey procedure , has carried on the monitor to the ever green nature protection area panda habitat choice .
1999年冬、夏季节,采用样方调查法,对长青自然保护区大熊猫栖息地选择进行了监测。
Abscissa means the direction of west to east ; ordinate means the direction of south to north ; numerical means quadrat site .
各图横坐标为西向东方向,纵坐标为南向北方向,数值表示样方位点。
According to the quadrat investigation material , the author calculated typical herbaceous plant 's diversity index values in ulanbuh desert by using the diversity computational methods of plant community characteristics .
The canopies of the desert plants are simple and thus the proportions of their canopies to the quadrat area are used as their eigenvalues to accurately and reliably calculate the eigenvalues of their niches .