... proportionate area by age class 龄级比例轮伐面积 protection forest system 防护林体系 protection forest 防护林 ...
基于16个网页-相关网页
farmland protection forest system 农田防护林体系
regional protection forest system 区区域性防护林体系
mountain protection forest system 山地防护林体系
comprehensive protection forest system 综合防护林体系
Three-North Protection Forest System 北防护林
protection of the forest system 防护林体系
county-level natural forest protection system 天然林保护工程县级系统
The result offers reference on protection forest system construction in small watershed.
这一结果为小流域尺度防护林建设提够了一定价值的参考依据。
Shaanxi Provincial "Three-North Protection Forest System" development was one of the Six Key Forestry Programs in Shaanxi implemented by the State.
陕西三北防护林体系建设工程是国家在陕实施的六大林业重点工程之一。
Protection Forest on sandy meadow was established by mixing broadleaf trees to raise stability of sandy meadow system.
为提高草沙地系统稳定性，采用阔叶树混交方式营建草沙地防护林。
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