Studies On Ecological Security Evaluation Of Main Economic Forest Types Of Mountain Area In North Fujian

The danger of environmental retrogression is kept on guard highly in China. The study of ecological security is becoming the major foreland and task in geography, ecology, and resource and environment science. Ecological security of forest is the base of ecological security of entironment. Ecological security of economic forest is the composing of Ecological security of forest.Fujian is the importance province of forestry in south China. The forestry is important relationship with natural resources and environment, that is very significant tactic station in economical system of Fujian. This paper study on ecological security evaluation of economic forest types. which is very practise significance for keep ecology environment quality, well-balanced operation of ecosystem and sustainable development of economic forest types. In theory, it is affluent in quantitative analysis of ecological security evaluation, consummate and enrich of system info of silvics.It's made an integrative evaluating of forestry ecological security in mountain area in North Fujian. taking three main economic forest types as basic unit, through ecosystem of economic forest types and pressure of environment, character of society , under the technique of AHP. for studies on ecological security evaluation of main economic forest types of mountain area in North Fujian.Biomass, Net primary productivity, Carbon storage of plantation, Carbon storage of Soil, Understory and litter carbon storage, Average output is maximum and Pesticide remains, Contaminated exponential of elementary of Cd is minimum of Phyllostachys heterocycla cv. Pubescens in three kinds of economic forests. It is the best for ecological security.Net primary productivity. Total carbon storage, Biological cycle velocity of nutrient element, Biological output velocity of nutrient element, Capabilities of conservation of water supply, Contaminated exponential of elementary of Cd, Average output, Pesticide remains, Cultivate system, Mode of management of Camellia oleosa between Castanea henryi and Phyllostachys heterocycla cv. Pubescens. It is the biggish for ecological security.Biomass. Carbon storage of plantation, Understory and litter carbon storage, Average...