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双语推荐:高生长量

通过对引进的5个品种的美国薄壳山核桃幼树连续2年的树高与地径生长节律的测定比较,结果表明:美国薄壳山核桃高生长峰值出现在4、7月份,地径增长则分别出现在5、6、8月份;生长期可划分为生长前期、生长旺盛期、生长减缓期与生长基本停止期。不同品种薄壳山核桃不同生长阶段的高与地径生长存在显著差异,全生长期内不同品种的高生长与地径生长均随时间的延长而差异减小。不同品种间的高、径生长速率不同,赣选2号的月均高生长量最大,赣选1号较小;地径月均增长则以赣选5号的较大,赣选1号的较小;引进薄壳山核桃苗木时,应考虑引进经过区域试验种源的优良品种。
The tree height and ground diameter growth rhythms of treelets of introduced five American pecan ( Carya illinoinen-sis Koch.) varieties were measured and compared for continuous 2 years.The results showed that the growth peak of American pe-can tree height appeared in April and July , and that of its ground diameter respectively turned up in May , June and August .The growth period could be divided into growth early stage , exuberant growth stage , slow growth stage , and growth basic stop stage . There were significant differences in tree height and ground diameter increment at various stages among five American pecan varie -ties, but these differences all decreased with the advance of their growth and development .The growth rates of tree height and ground diameter among five varieties were different .The average monthly tree height growth of pecan variety Ganxuan No .2 was the most, while that of Ganxuan No.1 was the least.The average monthly increment in ground diameter of Ganxuan

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2009年引进长林系列8个优良油茶品种,栽植后连续2 a对其在不同立地条件下的生长进行对比试验。结果表明:不同海拔高度,油茶当年生长无明显差异,第二年苗木生长的地径、树高与海拔高度的关系均达到差异极显著水平,中、低海拔生长的油茶在树高、地径生长之间无明显差异,而中、低海拔与高海拔生长的油茶在树高、地径生长之间有明显差异;不同坡向对油茶高生长有显著影响,南坡的生长最好,东坡生长次之,北坡生长最差;不同坡位对油茶高生长有显著影响,对地径生长则无明显差异,中、下坡的生长较好,上坡的生长较差。油茶造林应选择海拔在600 m以下,坡向为东、南坡,坡位为中、下坡的地段造林为好。
Introduction of 8 improved cultivars of 2-year Camellia oleifera seedling in 2009 in Jingning, Zhejiang province. Comparisons were conducted on increment of seedlings during 2 years under different site conditions. The result demonstrated that growth of the current year of seedling at different altitude had no evident difference, but that of the second year had significant difference of ground diameter and height. There were no evident differences of height and ground diameter growth of seedling between at medium and low altitude, but evident with that at high altitude. Aspect had great effect on growth of seedlings. The growth of seedlings on south slope was better than that on east and north one. Slope site had evident effect on seedling height growth. The experiment resulted that plantation of C. oleifera was recommended on east or south medium or low slope below altitude of 600m.

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通过对香叶树播种育苗,研究其1年生苗苗高地径生长变化规律。经定期测定,有序样本聚类和回归分析,拟合苗高、地径与时间相关关系的数学模型,结果表明:香叶树1年生播种苗生长期可划分为出苗期、生长初期、生长盛期和生长后期四个时期。苗高生长量集中在生长盛期,占77.51%,出苗期和生长初期所占比重较小,二者之和仅为7.93%,不及生长后期的14.55%。地径生长在出苗期占比较大,占总的18.03%,生长后期为11.47%,生长初期最小仅为8.2%。苗高、地径在生长盛期的时间仅占总生长天数的46.67%,但其生长却分别占总生长的77.51%和62.30%。苗高、地径生长与时间存在着极显著的相关关系,拟合的生长曲线可靠性高,可用来估测和分析香叶树1年生播种苗在不同生长时期苗高、地径的生长变化。
The study was carried out on growth regularity of one-year Lindera about height and ground diameter after sowing and cultivation. After regular determination, the relationship between the time, height and diameter was fitted into the mathematical mode on ordinal samples cluster and regression analysis. The results indicated that the growth period of one-year Lindera sown seedling could be divided into four periods:The seedling stage, the initial stage, growing vigorously stage and the late stage of growth. The height of Lindera, in the seeding and initial stage was occupied small proportion, the sum of both accounted for 7.93% which was 14.55% lower than the late stage of growth. The ground diameter of Lindera was 18.03%in the seedling growth, 11.47%in the late stage of growth and 8.2%in the initial stage. The time of height and diameter accounted 46.67%, but its increment was accounted for 77.51% and 62.30% of the total increment respectively in growing vigorously stage. There was a s

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不同立地条件的水曲柳人工幼龄林生长指标的调查结果表明:缓坡造林,8 a生胸径最大值为6.0 cm,树高最大值为6.5 m;轻微水湿地造林,经2次施肥后,12 a生时平均胸径、平均枝下高生长量较缓坡造林的8 a生水曲柳仅具有微弱生长优势,平均树高、平均冠幅和平均枝下高低于8 a生缓坡水曲柳幼龄林;农耕地10 a生水曲柳人工幼龄林平均树高为4.50 m,为其他立地的150%,最大值为6.8 m,胸径最大值为7.3 cm,单位面积立木蓄积为其他立地的158.3%。水曲柳造林后第四年开始,胸径、树高、材积生长较快,胸径连年生长由0.65 cm增至0.80 cm以上;树高生长量在4~6 a增长最大,连年生长达1.00 m,平均生长也持续在0.60 m以上;材积平均生长、连年生长自第四年开始,增幅较大,第六年连年生长为第五年的1.92倍。
The investigation result of Fraxinus mandshurica young growth plantation growth index of different site condition showed that the diameter at breast height and tree height maximum of 8 years was 6.0cm and 6.5m with gentle slope affor-estation.The average diameter at breast height and height under branch growth amount of 12 years after twice applying fer-tilizer with slight water wetland afforestation had little growth advantage compared with 8 years Fraxinus mandshurica of gen-tle slope afforestation.The average tree height, crown breadth and height under branch was lower than the Fraxinus mand-shurica young growth of 8 years of gentle slope.The young growth plantation of 10 years Fraxinus mandshurica of farm land whose average tree height was 4.50 m was the 150%of other site''s.The maximum value was 6.8m.The maximum value of diameter at breast height was 7.3 cm.The unit area timber accumulation was 158.3%of other site''s.The growth of diame-ter at breast height, tree height

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为研究旱快柳的生长规律,为其保护、培育和指导规模化生产提供理论依据,以铁岭市昌图县24年生旱快柳为研究对象,通过树干解析,求出树高、胸径、材积与年龄之间的关系曲线。结果表明:旱快柳胸径连年生长高峰值出现在6 a,平均生长高峰值出现在10 a 左右,可依据连年生长和平均生长下降的时间和幅度,并根据培育目的适时间伐;树高连年生长高峰值出现在4a,平均生长高峰值出现在4~6a;材积连年生长在16a前呈现快速增长,16~20 a 趋于平缓,材积平均生长在20 a 后有所减缓。从连年生长和平均生长的生长趋势来看,旱快柳的数成熟龄在20 a左右。
In order to study the growth rule of Salix matsudana,a theoretical basis for protecting,nursing and guiding large-scale production of Salix matsudana was provided.Taking 24-year-old Salix matsudana in Changtu County of Tieling City as the research object,the relationship curve among the tree height,DBH,the volume and the tree age were calculated through the stem analysis.Result shows that:the peak value for current annual incre-ment (CAI)of DBH and average increment(AI)of Salix matsudana is at six and ten years respectively.Based on the declined time and extent of CAI & AI,thinning was conducted according to the cultivated aim.The peak value for height CAI and AI is at four and from four to six years respectively.The volume CAI and AI increase faster be-fore 16 years and increase slower from 16 years to 20 years.The average volume growth slows after 20 years.The number of mature age should be around 20 years from growth variation trends of CAI and CI.

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采用标准地调查和标准木树干解析法调查林龄为31年的华北落叶松人工林,对解析木资料进行综合汇总、计算,绘出华北落叶松树高、胸径、材积的生长曲线图,揭示华北落叶松在六盘山区的生长动态规律.结果表明:华北落叶松的胸径、树高、材积总生长随着林龄增长,呈明显的上升趋势,胸径、树高连年生长呈明显的波浪型增长趋势,胸径快速增长主要集中在6—16年;第7年时,胸径生长达到连年生长的最高峰.华北落叶松树高快速增长主要集中在6—14年,第12年时,达到连年生长的最大值;材积连年生长快速生长期主要集中于12—29年,材积生长保持在0.007~0.031 m3;第29年时,达到材积生长的最高峰.材积连年生长的快速生长期较胸径连年生长、树高连年生长迟.第11年、14年时,林分的高生长、胸径生长均有明显下降,可将第11—14年,定为对华北落叶松开展首次抚育间伐的最佳时间段,之后应当按森林经理期5~8年,定期对华北落叶松人工林开展森林抚育间伐措施,以保证其胸径、树高的正常生长.华北落叶松为早期速生型树种,其材积生长率曲线随着林龄的增长呈明显的下降趋势.
This paper is based on the calculation of data of sample trees by means of plot investigation and stem analysis the growing curves of tree height, diameter of breast height (DBH) and volume of timber were drawn to determine the characteristics of the stand growth of 31 a Larix principis-rupprechtii plantation in LiuPan Mountains.The results show that:The growth of tree height, DBH and volume of Larix principis-rupprechtii increased significantly with the age of plantation. The growing curves fluctuated in the processes of increase in tree height, DBH. Growth of DBH was quickly at age of 6-16a, and reached its peak of annual growth at age of 7a. In similar, growth of tree height was quickly at age of 6-14a, and reached its peak of annual growth at age of 12a. However, growth of volume of timber was quickly at age of 12-29a, then kept annual growth with 0.007~0.031 m3, and reached its peak of annual growth at age of 29a. The quick growth of volume of timber was delayed compared

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为臭松次生林经营提供技术指导,以汪清林业局臭松次生林为研究对象,以96棵解析木数据为基础,采用5种模型分别模拟臭松胸径、树高、材积生长并进行模型选优。结果表明:臭松胸径、树高、材积最优生长模型分别为Johnson Schumacher、Logistic、Bertalanffy;前30 a臭松胸径生长缓慢,30~60 a胸径生长速度最快,60 a后胸径生长小幅缓慢增加,100 a左右达最大,树高生长过程与胸径生长规律基本一致;前40 a臭松材积总生长、平均生长、连年生长很小,40~70 a生长加快,70~100 a生长最快,100 a连年生长和平均生长均达最大,表明臭松林成熟年龄约100 a。
In order to provide technical guidance for Adiessibirica ledeb secondary forest management,based on the data of 96 parse tree, the DBH, height and volume growth of five Adiessibirica ledeb secondary forests were simulated by using five kinds of model and the five optimal models were screened out. The results show that the optimal model of DBH, height and volume growth respectively were Johnson Schumacher, Logistic and Bertalanffy;in the first 30 years, the DBH grew slow, from the 30th year to the 60th year the DBH grew with the fastest speed, 60 years later the DBH growth rate increased slowly and reached the maximum value when 100 years;the tree height growth was consistent with the growth pattern of DBH;in the first 40 years, the total volume growth, average volume growth and annual volume increment growth were small, grew rapidly from 40th to 70th years and grew with the fastest speed from 70th to100th years, the average growth and annual increment growth reached the maximum at 100

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采用4 a生钟萼木Bretschneidera sinensis实生苗进行不同海拔造林对比试验,对造林后4 a的净生长进行全面调查。结果表明,不同海拔对造林成活率的影响不显著,高生长、地径生长差异显著。在海拔350、660、750 m处树高平均净生长分别为72、164、162 cm,地径平均净生长分别为0.93、1.53、1.83 cm,说明在较高海拔造林的树高、地径生长均高于低海拔,造林地对海拔要求相对较高。
Afforestation trial on 4-year-old Bretschneidera sinensis were conduted at different altitudes in Jianning county, Fujian province. And the net growth of tree height and diameter on root collar (DRC) were investigated after 4 to 8 years planting. The results showed that there were insignificant differences in afforestation survival rate among the B. sinensis seedlings planted at different altitudes. But the increment of tree height and DRC among those at different altitudes differed significantly. The increments of tree height at altitudes 350, 660, 750 m were 72, 164, 162 cm, respectively. Meanwhile, the growth mass of DRC at altitudes 350, 660, 750 m were 0.93, 1.53, 1.83 cm respectively. In a word, the net growth of tree height and DRC were increased with a rise in altitude for afforestation ranging from 350-750 m. Consequently altitude was one of the most important factors for B. sinensis seedlings afforestation.

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为花榈木苗木的科学培育管理和培育优质壮苗提供理论依据,利用 Logistic方程拟合方法,对花榈木1年生实生苗木的苗高和地径的年生长发育节律进行了研究。结果表明:花榈木苗木的年生长呈明显的慢-快-慢-快-慢”的生长发育节律。花榈木生长可划分为出苗期、生长初期、速生期和生长后期4个阶段,出苗期为5月上旬至6月上旬,持续时间长;生长初期为6月中旬,持续时间短,仅10 d;速生期为6月中下旬至8月中下旬,持续时间长,生长最大,占整个苗高生长量的56.46%、地径生长的54.69%;地径比苗高提前10 d 进入速生期,持续时间比苗高短22 d,苗高在8月中下旬还有较大生长生,地径在8月中旬提前进入生长后期,苗高持续生长一段时间后在8月下旬进入生长后期。
The annual growth rhythm of height and ground diameter of O.henryi seedlings with one-year old was studied by Logistic fitted equation to provide the theoretical basis for scientific cultivation management of O.henryi seedlings and nursing quality and strong O.henryi seedlings.The results showed that the annual increment of O.henryi seedlings presents the growth rhythm of slow-fast-slow-fast-slow. Growth of O.henryi seedlings can be divided into emergence stage (from the first ten-day period of May to the first ten-day period of June),early growth stage (during the middle ten-day period of June),fast-growing stage (from the mid-to-late ten-day period of June to the mid-to-late ten-day period of August)and late growth stage (from the late ten-day period of August).The growth of ground diameter enters the fast-growing stage 10d early than growth of seedling height,and the duration shortens 22d compared with duration of height growth.The increment of height and ground diameter a

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对梅列区不同抚育强度米槠林标准木的胸径、树高和材积生长情况进行分析,结果表明抚育强度影响米槠胸径、树高、材积的生长过程,抚育强度越大,米槠胸径、树高、材积的生长高峰来得越早,胸径总生长随着抚育强度的增大而增大,树高和材积总生长均表现为中度抚育〉强度抚育〉对照〉弱度抚育。
The growth of diameter at breast height,height and volume with different tending intensity was studied. The results show that tending intensity effects the growth of diameter at breast height,height and volume. The higher the tending intensity,the peak of diameter at breast height,height and volume comes sooner. The total growth of diameter at breast height is higher when the tending intensity is greater. The total growth of height and volume is the most high in the middle tending forest,the second in the great tending forest,the third in the compared forest,and the last in the least tending forest.

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