1. In secondary birch forest, pinus sylvestris forest and korean pine forest, the horizontal distribution of soil seed bank to express as clumped distribution.

2. In order to make localized seedling cultivation of Pinus sylvestris var. mongolica come true, seedlings were breeded by seeds and transplants in Hexi region.

3. The natural regeneration of Pinus sylvestris var. mongolica plantation in sandy land couldn't be accomplished well in many introduction area, which have some barriers unknown.

4. And adaptability of Pinus sylvestris var. mongolica has also been researched in Gansu arid desert area.

5. There are 521 species in the forest of Pinus sylvestris of Daxing'anling area, of which 35 species of lichen, 48 species of bryophyta, 441 species vascular plant.

6. The determination of germinability of Pinus massoniana and Pinus sylvestris var. mongolica by IDX method was studied.

7. What the biggest problem for planting Pinus sylvestris var. mongolica Litv. is easy to happen physiological drought. It can influence the survival and preserving rate of afforestation.

8. Because the distribution of Pinus sylvestris var. mongolica cone has rule in the crown, we carry on the forecast to the output by using the method of fruiting information section.

9. Macrospore metrocyte of Pinus sylvestris var. mongolica developed to female gametophyte containing female gamete-egg by a series of changes.

9. Wish you can benefit from our online sentence dictionary and make progress day by day!

10. The dendrocola mycoflora of bud on Pinus sylvestris var. mongolica is studied by ways of mycology, forest pathology and community ecology.

11. Objective: To study on effective components from the bark of Pinus sylvestris L.

12. Zhanggutai lies on the verge of south east of keerqing sand, is subarid area , and is the earthest introduction area of pinus sylvestris var. mongolica.

13. The community structure and dynamics of soil water of Pinus sylvestris var. mongolica plantation were studied in a growth season.

14. The results show that, the main reason for the area Pinus sylvestris var. mongolica seedlings change to purple-red is that soil lacks for phosphorus.

15. Based on extensive literature review, the introduction and afforestation techniques of Pinus sylvestris var.

16. Based on extensive literature review, the introduction and afforestation techniques of Pinus sylvestris var. mongolica live were elaborated in detail.

17. Growth characteristics of 2-year-old seedlings from 10 introduced P. sylvestris L. ssp. kulendensis Sukaczw provenances were determined in contrast with' domestic Pinus sylvestris var. mongolica Litv.

18. Research On the Correlation Between Crown Width and D . B . H of Pinus sylvestris var.