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山东省风沙化土地治理对策 被引量:3
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作者 张德全 李庆 +1 位作者 杨志军 孟凤芝 《防护林科技》 1999年第3期32-34,共3页
本着因地制宜、适地适树的原则 ,兼顾生态和经济效益 ,提出了治理风沙化土地的技术对策和政策对策 ,对早日根除风沙化危害具有十分重要的意义。
关键词 风沙化 治理 对策 造林造树
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Introduction of Pinus radiata for afforestation:a review with reference to Aba, China
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作者 毕慧泉 Jack Simpson +4 位作者 李荣伟 颜红 吴宗兴 蔡诗民 Robert Eldridge 《Journal of Forestry Research》 SCIE CAS CSCD 2003年第4期311-322,共12页
Pinus radiata D. Don, native to a Californian coastal environment, has been introduced to many parts of the world as an exotic species for afforestation. It is now a major plantation species in the Southern Hemisphere... Pinus radiata D. Don, native to a Californian coastal environment, has been introduced to many parts of the world as an exotic species for afforestation. It is now a major plantation species in the Southern Hemisphere. In 1990, it was introduced to the heavily degraded, dry Min river valley area in Aba prefecture of Sichuan Province, P. R. China. Survival and growth of young trees planted at several sites appear to be reasonable. This review is to serve as an introduction to the large body of literature on P. radiata for forest scientists in China. It covers the following aspects: P. radiata in its native environment and in ex situ plantations, provenance and genetic variations, environmental limitations and climate niche, diseases and pests, lessons from unsuccessful introductions, and the use of P. radiata for ecological restoration. The early growth of P. radiata planted in the dry river valley area is briefly described. Potential problems associated with the introduction of P. radiata in Aba and future research needs are also identified. 展开更多
关键词 Pinus radiata Species introduction Ecological restoration Dry river valley.
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