摘要
样方总面积的大小.直接影响净耕地系数的测算精度.本文给出了确定样方总面积的计算公式,得出了样方总面积可以少于1%的结论.
The amount of a sample gross area directly affects the accuracy of surveying and computing the coefficient of net cultivated land.The paper gives the formula of computing the sample gross area and comes to the con- clusion that the sample gross area can be less than one per cent.
出处
《四川师范学院学报（自然科学版）》
1992年第1期42-47,共6页
Journal of Sichuan Teachers College(Natural Science)
关键词
净耕地系数
样方总面积
抽样误差
coefficient of the net cultivated land
sample gross area
sample error
stratified sampling
