年生长量

2.4-D溶液也可在不同程度上提高种子出苗率及苗木年生长量。

2 , 4-D solution could increase both the rate of emergence and growth .

作小主枝的1m以下的1a生枝极重短截，可极明显地促发壮枝，年生长量可达1457cm；

One-year branch as small bough whose length is under one meter is heavily short-cutting , then the strong branch can be grown much obviously , the annual growth quantity can reach 145 7 cm ;

使庆元林场万亩杉木速丰林平均年生长量达到12.3m～3／hm～2，超过了林业部速丰林生长指标。

The mean annual increment of 6666.67 hectares Cunninghamia lanceolata stands in Qingyuan Forest Farm reached 12.3m ~ 3 / hm ~ 2 , which surpassed increment index of standard of forestry ministry .

赤眼蜂防治马尾松毛虫对松林年生长量的效益

Benefit in Annual Increment of Pine Forest Using Oophagous Trichogrammae to Control Pine Caterpillar

我区三个主要龙眼品种树冠年生长量均达70厘米。

The annual crown growth rate of the grafted trees of three main longan varieties in Guangxi all reached 70 cm .

提高造林成活率5·1%；增加地径年生长量58·5%，促进了林木生长。

The survival rate increased by 5.1 % and the annual growth of the treated tree diameter was 58.5 % higher than CK ;

幼苗生长缓慢。其一年生幼苗高度年生长量8.5厘米，光照严重抑制幼苗的生长。

The growth of seedlings is very slow , annual height increment of the newborn seedlings is 8.5 cm . and the light has a drastic check on its growth .

刺槐年生长量增长率与林龄和年积温成反比，与年日照时数和冬春季降雨量成正比。

The annual growth rate is inversely proportional to the stand age and annual cumulative temperature , and is negative proportional to sunshine hours and rainfall during winter and spring .

对杨树植苗和插干造林进行造林对比试验，共设2个区3组。结果表明：杨树插干造林第1年生长量较植苗造林生长量大；植苗袋厚度对幼树新生根穿透力的影响

The cuttage forestation was compared with stock planting forestation in the test , in which 2 plots and 3 groups were set . Effect of Thickness of Replanting Bag on Penetrability of Newborn Roots for Young Trees

于秋季10月中下旬进入枯萎期。二年生苗在哈尔滨地区春季3月下旬开始返青，年生长量呈慢-快-慢的变化规律。

The plants go into the wilting stage in late October . Biennial seedlings of them begin to turn green during the last ten-day of Marth in spring in Harbin , annual growth follows the rhythm of slow-fast-slow .

红松和冷杉幼树地径最初10年生长量在近100年来有所增加，其中在近70年来增加更明显，云杉幼树没有这种趋势。

The basal diameter growth in the first 10 years of Pinus koraiensis and Abies alba increased during recent 100 years , especially during recent 70 years . But for Abies alba seedlings , there was no this trend .

杉木&大豆立体经营，不仅能增加粮食和直接经济收入，而且提高了光能利用率，改善林地小气候，减少林地水土流失，改良了土壤，使杉木幼林年生长量比一级提高20%左右。

Complex management of chinese fir with soja not only increase food and direct economic revenue , but also increase light energy utilization percent , improve microclimate of the forest , decrease water and soil erosion , improve soil .

活立木蓄积净增加3132760m3，增13%，森林资源消长比为1∶19，已达到年生长量大于消耗量的要求。在此基础上对森林资源发展趋势进行预测，并提出了加快森林分类经营改革；

The volume of living tree increased by 13 % , and was 3 132 760 m 3 . The ratio of consumption to growth was 1 ∶ 1 9 . The development trend of forest resource is Simao city was estimated .

在杉木幼林地套种大豆试验中，作了大豆的品种选择、施肥和除草剂试验，并相应地进行了土壤分析和小气候观察，调查了杉木幼林的年生长量。

In the experiments of undersowing soybean in the young growth of Chinese fir , variety location of soybean , fertilization and weedicide tests were made ; soil analysis , microclimate observation and annual increment of Chinese fir trees were made , too .

苗木高、径生长高峰期在9～10月，分别占年生长量的521%和568%，9～10月的苗木长势将对苗木品质的影响极大。

The peak seedling height and diameter growth stages are from Sep. to Oct. , the growth amounts account for 52.1 % and 56.8 % of annual growth amounts respectively . The seedling growth vigour during Sep. and Oct. will have an extremely big effect on seedling quality .

树高年平均生长量达0.8～3.4m。

Its average height growth reaches 0.8 ~ 3.4 m annually .

中等密度的白桦林有着最高的年蓄积生长量。

The highest annual volume growth is found in stands of middle density of stocking .

用树高年平均生长量和木材纹理倾斜度的综合选择指数的大小来评价林分的优劣。

The quality of stand was evaluated by means of the selection index of mean annual increment and slope of grain .

萌生苗个体间的生长势差异较大，但在相同立地条件下，其树高和地径的年平均生长量均明显高于同龄实生苗；

Seedling sprouts grew varying , but the average increments of their height and basal diameter were evidently better than those of seedlings .

根据野外的实测数据，以年材积生长量为因变量各竞争指数分量为自变量，通过多元回归分析建立了树木个体生长的竞争效应模型，回归结果有很好的拟合优度。

Taking each component of competition index as independent variables and the yearly volume growth as dependent variable , the competition growth model was established with good regression result .

生物复合肥料、菌剂和保水剂均显著提高白榆、小叶杨、刺槐、栾树树高和胸径的年净生长量，但保水剂的提高程度最高。

Biological compound fertilizers , biopreparate , absorbent polymer can increase the DBH and height net growth of per year , but effect degree of absorbent polymer is the highest .

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。

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 .

柚木年材积生长量可以通过叶片中钙、氮浓度高低，或土壤速效磷含量、盐基饱和度高低进行估计。

The mean annual volume increment of teak can be estimated by N and Ca concentration in leave , or by soil available P concentration and base saturation percentage based on established regression functions .

测树器测得立木5a的年平均直径生长量为0.074cm，5年期间测得有17.6%的个体直径为零增长或负增长。

Dendrometer measurement showed a mean annual diameter growth of 0.074cm ( increment percentage 0.57 % ) in a 5 year period , with 17.6 % of the individuals measured with dendrometers presenting zero or negative growth during this period .

胸径生长的高峰期较高生长稍晚2年，但生长量比较稳定且持续时间较长。

The growing peak of the breast-height diameter arrives 2 years later than that of height , but the former is more stable and persists longer .

结果表明：采伐强度与林分年平均蓄积生长量和更新株数间呈抛物线关系。

Results showed that the relation equations was parabola equation between cutting intensities and annual average increment and annual average number of regeneration individuals of stands .

对试验林中9年生杨树新品种生长量进行了分析比较；

The excellent breeds have been chosen and researched , the growth of the new breed poplars of 9-year in experimental forest have been analyzed and compared .

数量成熟龄为6～10年，年均最高生长量可达25.2521m~3/ha·a。

The number of years for the quantity rotation were 6 ~ 10 years , and the highest mean annual income was 25.252 1 m3 / ha . a.

近熟林的林分蓄积生长率为0.82%，材积生长量69年生时连年生长量仍大于平均生长量。

Forest stand volume growth rate of forest of near to mature is 0.82 % ; timber volume of 69-year-old tree is still more than average growth quantity .

树高生长的高峰值也都出现在前2年，第3年的生长量减少2／3，第4年又减半，至各种密度的树高年生长量几乎相近。

The increment peak of mean height was at age of 2 too , and then it was decreased by 2 / 3 at age of 3 and decreased by 1 / 2 at age 4 years .