母树林
- 名Mother forest;maternal (or parent) wood
-
通过对马尾松母树林7a的观测资料分析表明:(1)马尾松花期为10~15d,雌雄球花的散粉期与受粉期大致同步;
The successive 7 year observation on seed setting habit for Pinus massoniana seed stand was carried out , results show : ( 1 ) Flowering period ranged from 10 to 15 days , but the flowering period of male and female strobilus are overlapped ;
-
兴安落叶松母树林丰产型结构的研究
Study on high yield structure for seed stand of Larix gmelini
-
阳新县吴茱萸母树林营建技术
Construction Technique for Seed Orchard of Evodia rutaecarpa in Yangxin County
-
如何在红松母树林内实施计划烧除
How to implement the prescribed burning in korean pine seed stands
-
黄波罗母树林合理经营结构的研究
Study on the Structure of Management in Seed Forest of Phellodendron amurense
-
吴茱萸母树林经济效益分析
Analysis of Economic Benefits for Seed Forest of Evodia rutaecarpa
-
疏伐强度与母树林单位面积产种量相关密切;
The thinning intensity and seed production per unit area wereclosely interrelated ;
-
云南松母树林密度的研究
A study on the density of seed tree stand of Pinus yunnanensis
-
吉林省蛟河市红松母树林改建技术研究
Research on reconstruction technique of Korean pine seed stand in JiaoHe of JiLin Province
-
玄武岩落叶松母树林的生态特点及抚育间伐的效果
Ecological Characteristics and Tending Thinning Effects of Seed Stands of Larix Gmelinii Growing on the Basalt Tableland
-
樟子松天然母树林疏伐强度与种子产量的关系
The study on the relation between thinning intensity and seed production of the natural Scotch pine seed forest
-
青海云杉母树林害虫天敌资源及保护利用
On the Use and Protection of the Natural Enemies of Insect Pests in the Seed Stands of Picea crassifolia
-
进入结实中期(年龄16年以上)的母树林,其种子产量除受结实周期性影响外,还受气象因素的制约。
In the middle stage of fruiting ( I , e. > 16 years ), seed-bearing cyclicity and climatic elements affect the cone production .
-
红松幼苗可见于多种生境,但只在落叶松林、天然更新杨桦林和母树林中有较明显的幼树种群。
Seedlings can be found in several habitats , while saplings only distribute in Larix plantation forest , Betula-Populus natural regeneration forest , and old-growth pine-hardwood forest .
-
优良种子是提高林分质量的重要保障,因此,母树林经营在林业可持续发展中起着重要作用。
Fine quality seed is a significant gurantee to improve forest stands . In this sense , seed production stand management plays an important role in sustainable development of forestry .
-
培育优质黄菠椤用材林的配套技术研究结果表明,采种母树林、种子园、雄性无性系采穗圃其子代遗传增益分别为5%,10%~15%,12.7%~18.5%。
The results showed that filial genetic gain of parent stand , breeding garden and male clones is 5 percent , 10 ~ 15 percent , 12.7 ~ 18.5 percent respectively .
-
利用设置在福建省武平县的马尾松遗传增益测定林材料,以验证优良种源、母树林及种子园混系的现实遗传增益。
The genetic gain test plantations of masson pine located in Wuping of Fujian ( China ) were used to certificate realized genetic gain of superior provenances , seed stands and clonal seed orchards .
-
防护林和特种用途林中的国防林、母树林、环境保护林、风景林,只准进行抚育和更新性质的采伐;
Among the protection forests and forests with special uses , the national defense forest , the parent stand , the environmental protection forest and the scenic beauty forest can only permit cutting for cultivation and reforestation purposes ;
-
通过对华山松人工林不同疏伐强度的多年研究,展示了华山松母树林不同疏伐强度的生长、发育和结实情况,并提出了华山松母树林的合理综合疏伐强度指标。
Through years of study , the paper describes the growth , development and fruiting of Pinus armandi seed production forests under different thinning intensity , and it also proposes reasonable integrated thinning intensity plan for Pinus armandi seed production forests .