| 1. | Study on the fuel loading forecasting models of pinus yunnanensis
云南松可燃物载量预测模型研究 |
| 2. | Seed zones of chinese forest trees - seed zones of pinus yunnanersis franch
中国林木种子区云南松种子区 |
| 3. | Among the species selected , p . densata is a putative hybrid between p . tabulaeformis and p . yunnanensis
这项研究涉及到高山松、云南松和油松。 |
| 4. | Effects of phosphorus supply on seedling morphology and organic acids exudation of pinus yunnanensis
不同供磷水平对云南松幼苗形态建成及根际有机酸分的影响 |
| 5. | The tong - term tune bests of pinus yunnanensis management lead to bio - diversity decrease , diseases and insect pests damage , genetic degradation , and productivity decline
摘要长期以来，云南松的纯林经营使得生物多样性降低、林分稳定性变差、遗传品质退化、林分生产力下降，从而导致生态系统功能衰退。 |
| 6. | The plant community structure and its spatial dynamics in natural pinus yunnanensis forest region , which belonged to yipinglang forest farm of lufeng county , yunnan , were field investigated in april 2005
摘要于2005年4月采用中点四分法对云南省禄丰县一平浪林场云南松天然林区植物群落结构及空间动态进行了实地调查研究。 |
| 7. | The results indicated that the land surface runoff volume was respectively 35 . 19 m3 / a , 8 . 42 m3 / a , 15 . 95 m3 / a , 10 . 63 m3 / a in the plots of non - forests p . yunnanesis , e . maedenii and a . mearnsii community
研究表明，在森林树种个体水文生态作用方面，直干桉和黑荆树冠截留能力比云南松强，而云南松树干茎流量较高，直干桉树冠下降雨量比云南松、黑荆要大。 |
| 8. | This pattern shows the clear divergence of the two subgenera . at the same time , the differentiation of rdna sites on chromosomes among pines correlates well to their phylogenic positions in pimis reconstructed with other molecular data
杂交起源的高山松在染色体组上，表现出对油松和云南松两亲本不同染色体特征的分别继承与重组，并产生独有的特征。 |
| 9. | Were conducted . the results show that all the 4 species of pine leaves have a specific transportation tissue . these 4 species are different from each other by their morphological and histological characteristics
对马尾松、云南松、华山松、油松的原植物形态、药材性状、显微构造、粉末特征进行了对比研究，发现四种松叶在组织结构上均具有一种特殊组织? ?转输组织。 |
| 10. | Acceding to the domestic and overseas experience , the technology and theory of approaching - nature forest management d the pure forests are discussed in the paper , to provide gist for restoring the ecological function and economic benefit of the community
针对这些实际情况，本文依据国内外研究成果对云南松纯林近自然化改造的技术和理论进行了探讨，为恢复云南松群落的生态功能和经济功能提供依据。 |
