Estimate the total forest area of this county in year 2000 according to the forest area of 91 raster units of TM image of Heshun county in Shanxi province

Description:

According to the investigated sampling data of the forest area of 91 sample pixels of Heshun in year 2000, try to estimate the total forest area and sampling accuracy of Heshun county in year 2000. The total pixel size of Heshun county is 2,697,460, which is known.

Samples:

Forest area of 91 TM image units of Heshun county

Sampling method:

Spatial random sampling

Objective:

Gain the forest area and sampling accuracy of Heshun in year 2000 by sampling.

Condition:

1. The place and forest area of 91 sample pixels that are randomly extracted;
   
2. The total size is 2,697,460.

Request:

1. Total forest area of Heshun county in year 2000
   
2. Sampling accuracy .