1) degraded natural forest
退化天然林
1.
Study on the Restoration and Rehabilitation Models of Degraded Natural Forests in Jinsha River Watershed in Yunnan Province;
云南金沙江流域退化天然林恢复重建模式研究
2.
This paper reviewed past research works and current research progress regarding disturbance regime,degradation and restoration status,and analyzed the following key issues on restoration and reconstruction of the degraded natural forests on the upper reaches of Yangtze River.
综述长江上游退化天然林的干扰体系、退化特征及恢复重建的研究现状,分析长江上游退化天然林恢复重建面临的主要问题,基于生态恢复重建的理论基础,阐述并拓展封山育林的传统概念。
2) degeneration of natural grassland
天然草场退化
4) degraded natural grassland
退化天然草地
1.
Recovery and benefit analysis of ecology on degraded natural grassland of the source region of yangze and yellow rivers;
江河源区退化天然草地的恢复及其生态效益分析
5) Naturally degraded meadows
天然退化草地
6) natural reproduction of plantations
人工林天然化
补充资料：石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(internotional tradeof011 and只as)见石油市场与天然气市场。
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