1) forest decline
森林衰退病
1.
The current situation of forest decline research and the prospect of it s future;
森林衰退病研究现状及展望
2.
It is deemed that the important cause to hurt is the dry rot and traumas by wind, thunder, cold and disease, but the root cause is the rubber tree decline, according to the particularity of tropical arbor and the commonness of forest, the forest decline theory, rubber production.
根据橡胶树既具有林木的共性又独具热带乔木作物的特殊性,运用森林衰退病理论,结合橡胶生产实际分析认为:橡胶树遭受风、雷、寒、病等灾害造成损伤、树皮溃烂、干枯是橡胶树小蠹虫危害的重要原因;橡胶树衰退则是小蠹虫危害的根本原因。
2) forest decline
森林衰退
3) neuartige Waldsterbe
新类型的森林衰退
4) exhaustion of the forest
森林衰竭
5) forest attenuation
森林衰减
6) Forest degradation
森林退化
1.
As one of the most critical environmental problems in the 21st century, forest degradation has been facing worldwide.
森林退化可以理解为森林面积减少、结构丧失、质量降低、功能下降;森林衰退则是森林退化的一种形式,指森林(树木)在生长发育过程中出现的生理机能下降、生长发育滞缓、生产力降低甚至死亡,以及地力衰退等状态。
2.
Forest degradation,forest management,devegetation and revegetation are several additional direct human\|induced activities under the Kyoto Protocol 3 4 Their definitions are closely connected to the carbon accounting methodologies and the greenhouse gases (GHGs) emissions and removals of these activities,for which they are the key issues concerned by IPCC and UNFCCC.
森林退化、森林管理、植被破坏和恢复是涉及《京都议定书》第 3条第 4款 (3。
3.
The change of soil enzyme activity and relationship between enzyme activity and soil nutrient content during the process of forest degradation were studied to provide the theoretical basis for revegetation in Karst region with the frail ecosystem.
为给喀斯特环境脆弱生态系统的植被恢复提供理论依据,对贵州中部喀斯特森林退化过程中土壤酶活性的变化及其与土壤养分含量的相关关系进行了研究。
补充资料：森林资源(见世界森林资源、中国森林资源)
森林资源(见世界森林资源、中国森林资源)
forest resources
sen Iin ziyuon森林资源(forest resources)见世界森林资源、中国森林资源。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条