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annual ring growth
相关语句
  年轮生长
     The annual ring growth models of healthy Xingkai Lake pine and pine gall tissues caused by C. quercuum were y(health)= 61. 971 4(1-e~(-0.015, 5x)~1.0611 and y(gall) =254. 297 7(1 - e~(-0.010, 2x)~1.0708.
     兴凯湖松健康组织和由C.quercuum引起的寄主瘤部增生组织的年轮生长模型分别为Y_健=61.9714(1-e ̄(-0.0155x)) ̄1.061和Y_瘤=254.2977(1-e ̄(-0.0102x)) ̄1.0708.
短句来源
  “annual ring growth”译为未确定词的双语例句
     At 5 different stem heights,the basic density,width of annual ring,growth rate, late-wood rate and fibril angles of tracheid chord wall of the subject wood have been systematically measured and statistically analysed. The results are as follows. The besic density decreases as the stem height goes up,but the difference among different heights is not obvious.
     对火炬松(PinustaedaL.)速生材5个高度木材的基本密度、年轮宽度、生长率、晚材率和管胞弦壁纤丝角进行系统测量、统计和分析,结果表明,木材基本密度随树干高度的增加而降低.但各高度之间的差异不显著;
短句来源
     This paper dealt with the gaps of Huangshan pine( Pinus taiwanensis) forest developed on the meadow of 1400~1600m above sea level of Huangshan Mountain. The method of analyzing annual ring growth of pine trees surrounding gaps was employed to estimate the time of gap formation,which was almost the same as the regeneration occurred there.
     研究安徽黄山海拔1400~1600m垂直带自草甸发育的黄山松林分的林隙,采用林隙周边树木年轮生长序列分析方法来推测林隙形成的时间,结果表明林隙形成与更新发生的时间基本相近.
短句来源
     Results showed that there was significantly positive correlation between average annual ring growth and temperature, while no significant relationship were found between average annual ring growth and other referred factors.
     结果表明金钟藤年轮的年平均生长量与温度呈极显著正相关,与降水、日照时数和相对湿度相关性不显著。
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  相似匹配句对
     annual growth rhythm;
     高、径生长;
短句来源
     I——RING WITH D. C. C
     满足降链条件的Ⅰ—环
短句来源
     The growth of E.
     重组HBD 2对E.
短句来源
     The cell area is the most important factor to study the growth of the wood in a annual ring.
     若对木材细胞生长规律进行研究,最直接的参数便是细胞面积。
短句来源
     PRELIMINARY STUDY ON THE CORRELATION OF ANNUAL GROWTH RING WIDTH OF BEIJING POPLAR CLIMATIC FACTORS
     北京杨年轮宽度与气候因子相关性初探
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  annual ring growth
We find evidence for a modulation period of the annual ring growth widths on time scale of 11 y to 15 y.
      
Annual ring growth of the sample trees showed neither intervention nor growth reduction, which implies strong environmental stress that may cause mortality in PAA trees.
      


By studying the histopathology of three pine stem rust diseases. the authors found that the pathologic change of pine blister rust disease caused by Cronartium ribicola and C. flaccidum mainly takes place in cortex and phloem. hyphae can enter xylem through the wood ray parenchyma cells. but the parenchyma cells of xylem do not increase. there is not much difference in tracheids' length and width and height of wood ray in xylem comparing with healthy tissues. The pathologic change of pine gall rust disease caused...

By studying the histopathology of three pine stem rust diseases. the authors found that the pathologic change of pine blister rust disease caused by Cronartium ribicola and C. flaccidum mainly takes place in cortex and phloem. hyphae can enter xylem through the wood ray parenchyma cells. but the parenchyma cells of xylem do not increase. there is not much difference in tracheids' length and width and height of wood ray in xylem comparing with healthy tissues. The pathologic change of pine gall rust disease caused by C. quercuum mainly takes place in xylem. and also in cortex and phloem. There are significant difference in tracheids' length and width and height of wood ray comparing with healthy tissues. The annual ring growth models of healthy Xingkai Lake pine and pine gall tissues caused by C. quercuum were y(health)= 61. 971 4(1-e~(-0.015, 5x)~1.0611 and y(gall) =254. 297 7(1 - e~(-0.010, 2x)~1.0708.

经过对3种松干锈病的组织解剖研究.发现由Cronartiumflaccidum和C.ribicola引起的松疱锈病组织病变发生在寄主的皮层、韧皮部.菌丝也可沿木射线薄壁细胞进入木质部、但木质部薄壁细胞未发生增生。管胞的长宽和木质部木射线高度与正常组织相比.差异不显著。由C.quercuum引起的松瘤锈病组织病变.主要发生在木质部.也可发生在寄主皮层、韧皮部。与健康组织相比.其管胞的长、宽和木射线高度均差异显著。兴凯湖松健康组织和由C.quercuum引起的寄主瘤部增生组织的年轮生长模型分别为Y_健=61.9714(1-e ̄(-0.0155x)) ̄1.061和Y_瘤=254.2977(1-e ̄(-0.0102x)) ̄1.0708.

This paper dealt with the gaps of Huangshan pine( Pinus taiwanensis) forest developed on the meadow of 1400~1600m above sea level of Huangshan Mountain.The method of analyzing annual ring growth of pine trees surrounding gaps was employed to estimate the time of gap formation,which was almost the same as the regeneration occurred there.The dynamic variations of total radiation and photosynthetic available radiation(PAR) at different points in gaps were measured,and a regression model for their estimation...

This paper dealt with the gaps of Huangshan pine( Pinus taiwanensis) forest developed on the meadow of 1400~1600m above sea level of Huangshan Mountain.The method of analyzing annual ring growth of pine trees surrounding gaps was employed to estimate the time of gap formation,which was almost the same as the regeneration occurred there.The dynamic variations of total radiation and photosynthetic available radiation(PAR) at different points in gaps were measured,and a regression model for their estimation based on gap size,expanded gap size and canopy closure situation overhead the extended gap was established.The results indicated that the total radiation and PAR were respectively 90% and 71% of full sunlight in gap center, and 30~40% and 25~33% in expanded gaps,while the light under canopy was less than 10% of full sunlight.In the gaps with an area of 40m\+2 or in the extended gaps with an area of 110m\+2,the light might basically satisfy thegrowth of the pine,and the gap regeneration could occur.It is suggested that man made gaps could be made to facilitate the regeneration of Huangshan pine,which could be used as a management approach for Huangshan pine forests,and also for maintaining the landscape in beauty spots of Huangshan Mountain.

研究安徽黄山海拔1400~1600m垂直带自草甸发育的黄山松林分的林隙,采用林隙周边树木年轮生长序列分析方法来推测林隙形成的时间,结果表明林隙形成与更新发生的时间基本相近.通过对林隙太阳辐射日变化的动态观测,建立了林隙中不同位置接受辐射总量及光合有效辐射与林冠空隙面积、扩展林隙面积、扩展林隙上方树冠郁闭状况的相关模型.结果表明,在观测时间段内,林隙中心点的总辐射量与光合有效辐射分别为全光照条件的90%及71%;扩展林隙中接受的总辐射及光合有效辐射分别为全光照条件的30%~40%及25%~33%,而林冠下的光照下足全光照的10%.林冠空隙面积40m2或扩展林隙面积110m2的林隙,其光照基本能满足黄山松的生长,林隙更新能够发生.通过人工方法造成适当面积的小块林隙来促使更新发生,可作为风景区黄山松林在维持景观基础上的经营措施.

Through the analysis on the dynamics of flooding and the annual ring series of poplar trees on the beach land of Yangtze river in Anhui in the period of 1989~1997,the related models on flooded situation and ring growth were built.The results showed that there existed significant differences in flooding time and depth on different elevations of beach land,which made a great influence on the annual ring growth of poplar trees.The maximal flooded depth was more important than flooded time for its influence...

Through the analysis on the dynamics of flooding and the annual ring series of poplar trees on the beach land of Yangtze river in Anhui in the period of 1989~1997,the related models on flooded situation and ring growth were built.The results showed that there existed significant differences in flooding time and depth on different elevations of beach land,which made a great influence on the annual ring growth of poplar trees.The maximal flooded depth was more important than flooded time for its influence on ring growth.In addition,the flooded situation in August and September of previous year had a significantly negative influence on the ring growth of current year.The beach land with a maximal flooded depth of more than 2m was not suitable for high productive plantation of timber.It is suggested that a little more dense plantation should be managed for the production of pulp materials.

通过对长江滩地连续7年的水文动态以及滩地杨树人工林年轮生长序列的研究,分析杨树人工林个体生长与水淹时间、水淹深度以及气候因子的相应关系,建立相关模型.结果表明,林分个体胸径分布格局与滩地的高程具显著的相关性,水淹深度对直径生长的影响大于水淹的时间,而当年的径向生长与前一年8、9月水淹情况以及气候因子的关系明显.在滩地营造杨树人工林,以丰产为目的宜选择水淹深度小于2m的地域造林,淹水深度超过2m的地域宜适当密植,以培养小径材为主.

 
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