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当前位置: 首页 > 文章 > Survey of damaging pests and preliminary assessment of forest health risks to the long term success of Pinus radiata introduction in Sichuan, southwest China. 林业研究(英文版) 2008,19 (2) 85-100
Position: Home > Articles > Survey of damaging pests and preliminary assessment of forest health risks to the long term success of Pinus radiata introduction in Sichuan, southwest China. Journal of Forestry Research 2008,19 (2) 85-100

Survey of damaging pests and preliminary assessment of forest health risks to the long term success of Pinus radiata introduction in Sichuan, southwest China.

作  者：
Bi HuiQuan;Simpson J.;Eldridge R.;Sullivan S.;Li RongWei;Xiao YuGui;Zhou JianHua;Wu ZhongXing;Yan Hong;Huang Quan;Liu QianLi
单  位：
Australia.;Forest Resources Research; PO Box 100; NSW 2119; New South Wales Department of Primary Industries; Beecroff; Science and Research Division
关键词：
afforestation;coniferous forests;forest health;forest pests;forest plantations;forests;insect pests;introduced species;plant diseases;plant pathogens;plant pests;risk assessment;soil conservation;survival;water conservation;insects;Pinus armandii;Pinus radiata;Pinus tabulaeformis;China;Sichuan
摘  要：
Pinus radiata was introduced to the summer rainfall environments of Sichuan Province, China in the 1990s as a part of an afforestation program for soil and water conservation in the arid and semi-arid river valley area of Aba Prefecture. Within this region a total area of 26 000 ha have been identified through climate matching as suitable and a further 63 000 ha potentially suitable for environmental plantings of P. radiata. The plantations are being established in widely separated small patches on steep and degraded slopes along the dry river valley. The newly introduced P. radiata are exposed to two kinds of forest health risks: they may be attacked by (a) indigenous pathogens and pests against which they may not possess any resistance or (b) by inadvertently introduced foreign pests or pathogens. This paper presents a survey of the potential damaging pests and a preliminary assessment of forest health risks facing the P. radiata plantations over a much longer time-frame than the initial phase of introduction and early plantation establishment. An empirical approach was adopted to evaluate forest health risks by a combination of literature review, examination of historical records of pest and disease outbreaks in the surrounding coniferous forests, field surveys and inspections, specimen collection and identification, and most importantly, expert analysis of the likelihood of attack by specific pests and pathogens and the subsequent impact of such attacks. The assessment identified some specific forest health risks to the long-term success of P. radiata introduction in this area. These risks are closely associated with the indigenous pests and pathogens of the two native pine species, P. tabulaeformis and P. armondii since these pests and pathogens are considered more likely to establish on P. radiata over time. Exotic pests and pathogens are of a quarantine concern at present. Based on the results of assessment, recommendations are provided to improve forest vigour and to reduce the forest health risks posed by indigenous as well as exotic pests and pathogens to the introduced P. radiata. Ways to increase the ability to manage the forest health risks once a particular pest infestation and disease eventuates are also recommended. Although detrimental to the survival and growth of the introduced P. radiata, the impact of identified forest health risks are not considered to be fatal to the long term success of P. radiata in this area.

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