Abstract
China was one of the earliest countries to set up a system to continuously inventory natural forest resources. From the beginning of the 1970s until today, seven forest resource inventories have been carried out. This research summarizes the progress of forest continuous inventories and analyzes the existing deficiencies ofChina’s forest continuous inventory system and forest management plan inventory. As stated above, this research offers corresponding countermeasures and suggestions: establishing a sample plot system for comprehensive national forest inventory and monitoring with each province’s continuous forest inventory based on the foundation of the national sample plot system, able to develop the province as a subset of the overall province-level forest resource inventory according to the actual conditions in each province. Through annual multi-resource/multi-benefit surveying of the forests, the monitoring of forest amounts, quality, functions and benefits will be assisted in its entirety. The further integration of the forest continuous inventory and the forest management plan inventory is also discussed. This research also proposes the varied probability sampling method with sub-compartments as the basic sampling unit (or combinations of sub-compartments). This will also satisfy the requirements of ecological inventory by region.
Highlights
Forest Inventory proceeds with relevant scientific methods and standards according to the needs of forest management, ecological environment construction, forestry production, scientific research and other factors
The survey of forest resources carried out in order to understand the current situation of the forest resources and dynamic is known as Forest Continuous Inventory
This period of forest resource inventory saw the beginning of widespread usage of 3S (remote sensing (RS), geographic information systems (GIS), the global positioning system (GPS)) technology, and improved investigative factors in the areas of forest ecology, health class, ownership and intensity of management (The Forestry Department of the People’s Republic of China, 1994)
Summary
Forest Inventory proceeds with relevant scientific methods and standards according to the needs of forest management, ecological environment construction, forestry production, scientific research and other factors. The Forest Continuous Inventory system includes the sampling method plot settings and survey index, time interval, and statistics and analysis etc. China’s work on the forest inventory system took place after 1950. It experienced 4 stages: 1) the initial establishing forest inventory system in nationwide in 1950s; 2) Sampling techniques using mathematical statistics as a theoretical basis from 1960s to1980s; 3) Remote sensing (RS), geographic information systems (GIS), global positioning system (GPS) technology was gradually introduced forest continuous inventory technology from 1990s to 2000s; 4) The expansion of inventory contents towards a multi-resource format includes forest productivity, biomass, carbon storage, etc. Forest continuous inventory system, how to improve the efficiency of inventory expanded inventory results application, some useful advice put forward in this paper
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