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regeneration quality
相关语句
  更新质量
     Impacts of harvesting ways on sun-light density and regeneration quality in the felling sites
     森林采伐方式对伐后迹地光照条件及更新质量的影响
短句来源
  “regeneration quality”译为未确定词的双语例句
     Influencing Factors on Multiplication Coefficient and Regeneration Quality of Adventitious Shoots of the S Series Dwarfing Rootstock of Pear
     梨S系矮化砧组培苗增殖系数和质量的影响因子
短句来源
     An experimental study on regeneration,quality of and mecha-nism of peripheral nerve after side-to-side neurorrhaphy
     周围神经侧侧缝合后再生能力、质量及其机制
短句来源
     Biotinylated dextran amine(BDA) for observing the local axonal transport in rabbit sciatic nerve : An experimental studyBy now we can't detect the regeneration quality in earlier period after peripheral nerve injury or therapeutic suture,and it's responsible for poorly recovery of peripheral nerve.
     一、本研究的目的、意义及拟要解决的问题由于周围神经损伤后不能早期通过运动及感觉检查或电生理检查来判断伤情及术后恢复的程度,为此,一些作者通过周围神经轴突新生中本身代谢的特点探索了一些方法。
短句来源
     Result The regeneration quality of embryonic rabbit's nerve group was inferior to autograft,but highly superior to fresh allograft.
     结果 :胎神经移植组神经再生效果不如自体神经好 ,但优于新鲜异体神经组。
短句来源
     The influencing factors of multiplication coefficient, regeneration quality and rooting for adventitious shoots of pear dwarfing interstocks S_ 2 , S_ 5 and PDR_ 54 were studied.
     以梨矮化中间砧S2、S5和PDR54试管苗为试材,探讨了培养基和植物生长调节剂对梨矮化中间砧试管苗增殖和生根的效应。
短句来源
  相似匹配句对
     On Quality
     论素质
短句来源
     Quality.
     质量。
短句来源
     Factors of Affecting the Quality of Regeneration
     影响再生橡胶性能的因素
短句来源
     (5)Early detection of the quality of nerve regeneration.
     ( 5 )能够早期检测神经再生的质量。
短句来源
     The natural regeneration of C.
     总之,拷树自然更新伴随着一个复杂的种子扩散过程。
短句来源
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  regeneration quality
Effects of harvesting on soil properties and regeneration quality in larch-birch forest in China
      
Man-made lighting tending can accelerate the regeneration process and increase the regeneration quality of Korean pine population.
      


On the Jianfengling Ridge, Hainan Island, after the tropical mountain rain forest was cut. the dominant species of the regeneration communities on the cutting blanks is Castanopsis fissa. The authors studied the characteristics of two regeneration communities——one regenerated on a large cutting blank and ten-year after cutting there had a tending action taken, another regenerated on a small cutting blank (about 0.25 ha) and had no tending action taken. The characteristics being compared were the Important Values...

On the Jianfengling Ridge, Hainan Island, after the tropical mountain rain forest was cut. the dominant species of the regeneration communities on the cutting blanks is Castanopsis fissa. The authors studied the characteristics of two regeneration communities——one regenerated on a large cutting blank and ten-year after cutting there had a tending action taken, another regenerated on a small cutting blank (about 0.25 ha) and had no tending action taken. The characteristics being compared were the Important Values (Ⅳ.) of the plan populations, the population diversity and the age structure. The regeneration quality of the two communities was also evaluated.The results indicated the two communities had outstanding differences. The community characteristics and regeneration quality on the small cutting blank was much better than those on the large one. The authors think that the cutting method of tropical mountain rain forest should be small cutting blanks which are separated from each other, because ere are adequate and equitable seed sources for all the main species provided by the sorrounding forest. And using separated small cutting blanks will neither damage the ecological envi ronment nor cause low regeneration quality of communities. So, it is possibla for the regeneration communities on the small cutting blanks to lead to its climax communities in a short time. The spontaneous succession of these kinds of regeneration communities have the best structure to utilize the non-biological resoures, such as fertile soil and good tropical weather. From the results, the tending action is not needed for the regeneration communities, except for speciel forest purposes.There are still two problems that need more experiments. First, to define an exact size of small area for cutting. The cutting area must both maintain the ecological balance and make the cutting department have maximum economic efficiency. Second, to define a suitable tending strength in the regeneration communities which are for special forest purposes.In addition, the authors have made a standard of dividing the tree age classes by the tree sizes, which is only suitable in the tropical mountain rain forest because the trees there grow rapidly.

海南岛西南部热带山地雨林采伐迹地上的更新群落大多数是以闽粤栲占优势的森林植被。本文以尖峰岭为例,对热带山地雨林不同采伐方式迹地上更新的群落进行了群落数量特征、种群年龄结构的分析。同时从林业生产的角度,评定了群落的更新质量,并提出了热带山地雨林适宜的采伐方式和群落更新的抚育管理方法。

The characteristics of natural Poplar-Birch forest, the features of the regeneration and the growth of Korean Pine population under forest,and the relationship between upper structure of Poplar-White Birch and regeneration quality of Korean Pine population under forest were studied in the paper. It is shown that the regeneration quantity and quality of Koran Pine population under Mountain Poplar-White Birch forest and White Birch forest is better than that under irgin Korean Pine forest; the...

The characteristics of natural Poplar-Birch forest, the features of the regeneration and the growth of Korean Pine population under forest,and the relationship between upper structure of Poplar-White Birch and regeneration quality of Korean Pine population under forest were studied in the paper. It is shown that the regeneration quantity and quality of Koran Pine population under Mountain Poplar-White Birch forest and White Birch forest is better than that under irgin Korean Pine forest; the distribution pattern of Korean Pine population belong to custer distribution, and the period during which Korean Pine population occures largely is always behind the period of the mass-occurence of Poplar and White birch population; the factors affacting regeneration of Korean Pine population are different at every age stage; the partial removal of White Birch in over story can accelerate the regeneration process and improve the regeneration quality of Korean Pine in low story.

通过详实的外业调查和细致的内业分析,揭示了天然杨桦林下红松种群天然更新的格局与过程。结果表明:山地杨桦林和山地白桦林下红松更新的数量和质量均优于谷地苔草白桦林,质量高于原始阔叶红松林;红松种群呈聚团状发生,其大发生时期晚于杨桦种群大发生时期;各龄红松的生长受不同林分结构因子的制约;人为透光抚育可以加快红松种群的更新进程,提高红松更新质量;建立上层白桦较下层红松大适宜年龄的更新复合体是可行的。

It is explicit that the sun--light density in the forest or on the operation sites after harvesting operations must be changed. What are the effects of harvesting in different cutting methods in the natural regeneration on the harvested sites? The authors of this papers presented a preliminary study results concerning with this interesting question, The results show that the natural regeneration quality on harvested sites has a high corelation not only with seeds resources available on the spots but also...

It is explicit that the sun--light density in the forest or on the operation sites after harvesting operations must be changed. What are the effects of harvesting in different cutting methods in the natural regeneration on the harvested sites? The authors of this papers presented a preliminary study results concerning with this interesting question, The results show that the natural regeneration quality on harvested sites has a high corelation not only with seeds resources available on the spots but also with harvesting methods because of the sun -- light density in the forest after operations changed by harvesting.

本文应用野外观测方法.对森林采伐方式(皆伐、择伐、带状皆伐)对迹地光照条件和作业后天 然更新质量进行了局部性研究。结果表明.更新树种不仅与种源有关.而且还与光照条件显著相关、即与森林采 伐方式有关。

 
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