Forest resource value check computation space informationization technology and method

Abstract

The invention discloses a forest resource value accounting space informationization technology method, which takes spatial data and attribute data of a forest resource second-class investigation as the basis, carries out land classification on satellite remote sensing image according to an expert knowledge database, acquires the areas of woodland, marsh, sand and ground, establishes a forest resource value accounting space database, performs system sampling based on Nkm multiplying Nkm grid, acquires the gray-scale value of the remote sensing image of each sampling point dropping on the woodland, inverts the forest reserves and finishes forest resource value accounting space informationization. The invention improves the data acquisition precision, shortens data acquisition period, timely and precisely provides with forest resource spatial information and realizes the value accounting of woodland, stumpage and amount of stumpage growth.

Description

1. Technical field [0001] The invention relates to a technical method for acquiring and processing spatial data, in particular to a technical method for spatial informationization of forest resource value accounting. 2. Technical background [0002] In the value accounting of traditional forest resources in my country, the following methods are mainly used to obtain the forest land area. The boundaries of the forest class and the small class are drawn on the topographic map, and the area is calculated with a planimeter or transparent grid paper; the positioning and distance measurement are performed with a compass , Determination of boundary and area; measure the standing stock through the survey of each tree ruler, angle gauge tree and temporary plot survey, and the value is also completed through electronic table statistics. These methods have their shortcomings in the forest resource value accounting: [0003] ① The acquisition accuracy of forest land area is low, the inte...

AI Technical Summary

Problems solved by technology

[0003] ① The acquisition accuracy of forest land area is low, the intensity of field work is high, the cost is high, and it takes a lot of time. Moreover, it is affected by factors such as visibility conditions, terrain and terrain, and human errors are large;

[0004] ② The time period for data acquisition is long, and the management and analysis methods of data and maps are backward, so it is impossible to provide timely, accurate and large-scale spatial information of forest resources;

[0005] ③Accumulation measurement is calculated by any commonly used method, and the measurement results are all calculated based on the diameter at breast height and a certain shape number, and the accuracy is low;

[0006] ④The forest area and gray value are stored in the electronic form, the data independence is poor, the sharing is weak, and the redundancy is large, which wastes storage space to a certain extent and easily causes data inconsistency

[0007] Therefore, the traditional forest resource value accounting method inevitably brings a lot of trouble and errors