Forest resource value check computation space informationization technology and method

A technology of forest resources and value, applied in computing, special data processing applications, instruments, etc., can solve the problems of high field work intensity, long data acquisition cycle, and weak sharing, so as to improve the accuracy of data collection and shorten the data collection time. Acquisition cycle, cost reduction effect

A technology of forest resources and value, applied in computing, special data processing applications, instruments, etc., can solve the problems of high field work intensity, long data acquisition cycle, and weak sharing, so as to improve the accuracy of data collection and shorten the data collection time. Acquisition cycle, cost reduction effect

CN101196931AInactive Publication Date: 2008-06-11BEIJING FORESTRY UNIVERSITY
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Embodiment Construction

[0015] The acquisition and processing technology of spatial data for forest resource value accounting is different from the existing technology, specifically:

[0016] (1) Selection of data source: Before the data processing starts, a series of screenings are carried out on the remote sensing data, and the representative remote sensing data with high image resolution and relatively complete data should be selected as much as possible, and then through image geometric correction, wave band After a series of processing processes such as combination, matching, splicing, etc., classification and gray value extraction are carried out.

[0017] (2) Acquisition of land type area: the acquisition of forest land, wetland, and sandy land area is the premise of calculating forest value. First, vectorize the land types classified according to the expert knowledge base to obtain the IDs of the corresponding primitives on the map, such as woodland, wetland, and sandy land, and then automati...

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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...

Claims

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Application Information

Patent Timeline
11 Jun 2008
Publication
CN101196931A
IPC
G06F17/30; G06F19/00
Inventors
冯仲科; 闫秀婧