农学 >>> 农学总论 作物学 园艺学 土壤学 植物保护学 农药学 林学 畜牧学 兽医学 水产学
搜索结果: 1-5 共查到农学 Canopy closure相关记录5条 . 查询时间(0.109 秒)
Canopy closure, which is the ratio of the vertical projection area of the crowns to the area of forest land, can indicate the growth and tending situation of a forest and is of great significance for ...
Documented information on the growth dynamics and related silvicultural manipulation of naturally regenerat ed Douglas-fir beneath a canopy shelter is scarce. We hypothesized that long regeneration ...
Growth intensity of particular tree components is controlled by a variety of factors and as a consequence, biomass allocation also changes over time. Since the allocation of biomass controls the car...
Growth intensity of particular tree components is controlled by a variety of factors and as a consequence, biomass allocation also changes over time. Since allocation of biomass controls the carbon re...
Rice-Chinese milk vetch was cultivated by a rotation system from 1994 to 1997 to examine the effect of rice straw on the establishment and growth of Chinese milk vetch. Chinese milk vetch was sown in ...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...