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›› 1989, Vol. 25 ›› Issue (3): 276-281.

• 研究简报 • Previous Articles     Next Articles

PRINCIPLE AND PROBLEMS OF THE TRACT APPLIED TO FOREST INVENTORY

Mei Shan Jiang,Mengxia,Li Yuguo   

  1. The Forest Resource Bureau of Heilongjiang Province
  • Received:1987-06-10 Revised:1900-01-01 Online:1989-05-25 Published:1989-05-25

Abstract: After tract was tested in two forest bureaus in Heilongjiang province, it was applied to provincial inventory. This paper showed the results of the test and the principle of this method. The authors derived two new applicable formulas, which had the advantage of the original one in forest inventory of volume-increment, area estimation and time efficiency.

Key words: Tract, Sampling with partial replacement