The Introduction Seedling Experiment of Four Varieties of Poplar

2013 ◽  
Vol 448-453 ◽  
pp. 964-967
Author(s):  
Lian Kuan Wang ◽  
Pei Yong Lian ◽  
Yun Jiang Fu
Keyword(s):  
Survival Rate ◽  
Inner Mongolia ◽  
Seedling Height ◽  
Forest Region ◽  
Calculated Average

We introduced the four varieties poplar to Inner Mongolia Daxing’anling Forest Region, and investigated the survival rate of seedlings, ground diameter and seedling height were measured, and calculated average ground diameter and seedling height. In different experiment areas, the results showed that, the growth influence of seedling height and ground diameter was not the same on different cutting densities. Based on the above results, it can be preliminarily determined the most suitable poplar and cutting density for this area.

The Growth Charactersitics Study of Introduction Fast-Growing Poplar at the Initial Stage of Afforestation

2013 ◽  
Vol 726-731 ◽  
pp. 4270-4273
Author(s):  
Pei Yong Lian ◽  
Jin Ye Liu ◽  
Lian Kuan Wang
Keyword(s):  
Tree Growth ◽  
Inner Mongolia ◽  
Planting Density ◽  
Seedling Height ◽  
Effect Analysis ◽  
Fast Growing ◽  
Forest Region ◽  
Initial Stage ◽  
Factor Effect

We have carried out three consecutive years of tree growth survey, and studied on afforestation technology, compatibility and high-yielding measures, we conducted two-factor effect analysis of different varieties and different density on seedling height and ground diameter in the annual introduction of fast-growing poplar. The results showed that the influence of different varieties of seedling height and ground diameter was extremely significant, and the influence of different density of seedling height and ground diameter was not significant basically. Based on the above results, it can be preliminarily determined the most suitable fast-growing poplar and planting density for Inner Mongolia Daxinganling Forest Region.

scholarly journals Effect of Different Moisture Harvesting Techniques on Seedling Survivals and Growth of Trees in Degraded Lands of Southern Tigray

2019 ◽  
pp. 1-10
Author(s):  
Gebru Eyasu Siyum ◽  
Tuemay Tassew ◽  
Abadi Gidey
Keyword(s):  
Survival Rate ◽  
Tree Species ◽  
Field Experiments ◽  
Tree Planting ◽  
Seedling Height ◽  
Tree Seedling ◽  
Degraded Lands ◽  
Tree Survival ◽  
Harvesting Techniques ◽  
The Impact

Tree planting on degraded lands play a key role in forest rehabilitation processes through afforestation and/or reforestation. Moisture harvesting structures (MHSs) has significant impact on seedling survivals at degraded lands. The objectives of this study were to investigate the impact of water harvesting techniques on seedling survival and growth performance of trees. Field experiments were conducted for two rainy seasons in southern Tigray, Atsela watershed. The experimental design followed was the split plot design. The MHSs as main plot used were eye-brow basins (EBs), micro trench (MTs), improved pit (IPs) and as control normal pit (NPs). The tree species grown as subplots were Eucalyptus camaldulensis, Grevillea robusta, Olea europaea and Cupressus lusitanica. The four tree species were planted by using seedlings. The tree survival rate, height, crown width (CW) and root collar diameter (RCD) of the four tree species were measured every six months after transplanting. The result shows that MHSs were significant in tree seedling height, CW and RCD but not in tree survival rate. Tree seedling height and CW grown in EBs were significantly higher than those grown in MTs, IPs and NP (P≤0.05). RCD of tree seedling was higher when grown in EBs than NP (control) (P≤0.05). The interaction of tree species seedlings and MHSs shows that those seedlings grown on MHSs were significantly thicker, taller and more survived than those grown on the NPs (control) (P≤0.05). So based on the experiments, it is concluded that MHSs particularly the eyebrow basin was considered as the most appropriate planting pit. Therefore, further demonstration of eyebrow basin tree planting should be carried out.

Distribution of cranes in Hulunber Grassland and Daxing’an mountains forest region in inner Mongolia

1999 ◽  
Vol 10 (1) ◽  
pp. 55-58 ◽  
Author(s):  
Wang Wen ◽  
Wang Xiuhui ◽  
Gao Zhongxin ◽  
Yin Ruixue
Keyword(s):  
Inner Mongolia ◽  
Forest Region ◽  
Daxing’An Mountains

790: Ten-Year Disease Free Survival Rate Calculated with PSA Cutpoint 0.2 NG/ML in Men After Brachytherapy for T1C Prostate Cancer

2004 ◽  
Vol 171 (4S) ◽  
pp. 209-209
Author(s):  
James B. Benton ◽  
Frank A. Critz ◽  
W. Hamilton Williams ◽  
Clinton T. Holladay ◽  
Philip D. Shrake
Keyword(s):  
Prostate Cancer ◽  
Survival Rate ◽  
Disease Free Survival ◽  
Free Survival ◽  
Disease Free Survival Rate ◽  
Disease Free

Gender differences in abdominal aortic aneurysm therapy – a systematic review

VASA ◽  
2018 ◽  
Vol 47 (4) ◽  
pp. 267-272 ◽  
Author(s):  
Konstanze Stoberock ◽  
Tilo Kölbel ◽  
Gülsen Atlihan ◽  
Eike Sebastian Debus ◽  
Nikolaos Tsilimparis ◽  
...  
Keyword(s):  
Gender Differences ◽  
Abdominal Aortic Aneurysm ◽  
Survival Rate ◽  
Aortic Aneurysm ◽  
Endovascular Treatment ◽  
Aortic Aneurysms ◽  
Lower Survival Rate ◽  
Lower Survival ◽  
Abdominal Aortic ◽  
Risk Of Rupture

Abstract. This article analyses if and to what extent gender differences exist in abdominal aortic aneurysm (AAA) therapy. For this purpose Medline (PubMed) was searched from January 1999 to January 2018. Keywords were: “abdominal aortic aneurysm”, “gender”, “prevalence”, “EVAR”, and “open surgery of abdominal aortic aneurysm”. Regardless of open or endovascular treatment of abdominal aortic aneurysms, women have a higher rate of complications and longer hospitalizations compared to men. The majority of studies showed that women have a lower survival rate for surgical and endovascular treatment of abdominal aneurysms after both elective and emergency interventions. Women receive less surgical/interventional and protective medical treatment. Women seem to have a higher risk of rupture, a lower survival rate in AAA, and a higher rate of complications, regardless of endovascular or open treatment. The gender differences may be due to a higher age of women at diagnosis and therapy associated with higher comorbidity, but also because of genetic, hormonal, anatomical, biological, and socio-cultural differences. Strategies for treatment in female patients must be further defined to optimize outcome.

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