更新造林

谈增加阔叶树种比重在更新造林中的重要作用

Discussion on the Importance of Increasing the Proportion of Broadleaf Species in Reforestation

木麻黄无性系选择及其在滨海沙地更新造林中的应用

Clone Selection of Casuarina equisetifolia and its Application of Reforestation on Sand Land

V型植苗锹在更新造林中的应用效果

Application Effect of Stock-planting Shovel with V-type in Transformation Afforestation

进行了采伐和更新造林设计；

The plans of harvest cutting and regeneration forestation were designed .

系统抽样法在更新造林成活率调查中的应用

Investigating survial rate in afforestation and regeneration by systematic sampling

黑龙江省林区更新造林状况分析

Analysis of the reforestation state in Heilongjiang Forestry Region

枫香是更新造林的先锋树种与优势树种。

Liquidambar Formosana Hance is a pioneer species and advantage species of reforestation .

人工更新造林成效分析研究

Research on Effect of Artificial Regeneration Reforestation

干旱沙地更新造林树种的选择及配套技术研究

A Study on the Choice of Tree Species for Reforestation and Its Relevant Techniques in Sandy Area

木麻黄基干林带类型划分和更新造林关键技术研究

Studies on the type classification of backbone forest strip for Casuarina equisetifolia and key techniques for its regeneration afforestation

该文简要介绍了陕北风沙干旱地更新造林的试验成果。

The author gives a brief introduction to the experimental result of reforestation in the arid sandy areas of Northern Shaanxi province .

杉木萌芽更新造林技术初探旱林作业对水分因子再分配研究

A brief research on the afforestation technology of the reformed sprouts of China fir Effects of Dry Afforestation Technology on Water Reallocation

皆伐应当严格控制，并在采伐的当年或者次年内完成更新造林；

Clear cutting shall be put under strict controls and the reforestation shall be completed in the same or next year of the cutting ;

无论是荒山造林还是更新造林，抑或只是保护和改良天然树林，只要好好计划，林业对于造福干燥，半干燥地带的人民都能作出巨大贡献。

Whether it be afforestation or reforestation or simply conserving and improving natural tree growth , forestry , if properly planned , can make an important contribution to the general welfare of the peoples living in arid and semiarid zones .

利用I-69杨树伐根萌芽更新与植苗造林的效果

The effect of the reproduction by sprout of the stump division and the planting trees of poplar I 69

林下植被生物量为：人促更新>天然更新>炼山人工造林。

The vegetation biomass under woods was artificial regeneration > natural regeneration > artificial afforestation .

不同林分物种丰富度为：天然更新>人促更新>炼山人工造林；

The species abundant degree in different stands was : natural regeneration > artificial regeneration > artificial afforestation ;