The origin of some natural Betula L. stand is seedling. Some are sprout forest.

樺樹(shù)天然林的起源有實(shí)生的18禁一级国产人人肏，也有萌生的色呦呦视频免费观看。

The results indicated that the soils in the forest zone of Taichung harbor is sand with extremely low organic matter content. This is unfavorable to grow and sprout in forest.

由研究結(jié)果得知，臺(tái)中港林區(qū)屬於砂土网站ⅩXXⅩⅩ，有機(jī)質(zhì)含量極低操逼吃奶动态图，不利於林木生長(zhǎng)與萌芽。

Stand in different growth period by weibull distribution function.(6) Height and diameter of a tree are two factors to show growth in upright and cross. When they are young, the ratio of height and diameter is more than 1. It shows the fact that natural stand, especially natural sprout forest grows fast in early period. Later, with the age increasing, the ratio of height and diameter gradually reduces. In nearly mature stand and mature stand, increment of diameter is over increment of height.

5樹(shù)高和直徑是表明林木縱向生長(zhǎng)和橫向生長(zhǎng)的兩個(gè)特征因子a片免费首页，在幼齡階段欧美大屌激情，高徑比大于1，說(shuō)明天然林91自拍最新，尤其是天然萌生林早期高生長(zhǎng)快的特點(diǎn)欧美精美视频一区二区三区四区，此后隨著年齡的增加，高徑比逐漸減小人人人人人人爱，在近成熟或成熟階段日本wwwwwwwwww，直徑生長(zhǎng)量超過(guò)樹(shù)高生長(zhǎng)量。

This attributes to the abundance remnant nutrients remaining in the stump. However, in later growing stage the difference between the two regeneration patterns gradually shrinks, in tree height the seeding individuals even exceed the sprouting ones. This reflects that the sprout forest exist premature senility phenomenon.

但是到了生長(zhǎng)后期久久精品五视频，兩種更新方式形成的個(gè)體間生長(zhǎng)量差異逐漸的縮小美女被喂J8免费网站在线观看，在樹(shù)高生長(zhǎng)上實(shí)生個(gè)體的生長(zhǎng)甚至超過(guò)了萌生個(gè)體的生長(zhǎng)，這反應(yīng)出了萌枝更新形成的萌芽林存在林木早衰的現(xiàn)象jizzjizz国产精品。

Remark:(1)The cost ofseeding日韩教师另类自拍视频在线观看免费、soil preparation、clearance ofweeds91中国老熟女的大屁股、fertilization专门看黄色视频、implantation、repair planting激情图库、tending and fertilizers etc is included in afforestation cost, the plantations are tended l time in the afforest first year and thesame thing had been done in the next year;(2)The land rent which is 225 yuanhm-2a-1 and the cost of pest control and fire proof which is 75yuanhm-2a-1 are included in the fixed cost;(3)The plantation is managed aS the sprout forest after catastrophe, the plantations are tended 1 time in the year of disaster and the same thing had been done in the next year.

桉樹(shù)速生用材林營(yíng)林成本因地點(diǎn)和經(jīng)營(yíng)者的不同而有所差異欧美人又色又爽的A片，為方便進(jìn)行經(jīng)濟(jì)效益評(píng)價(jià)，經(jīng)咨詢(xún)江西贛州金太陽(yáng)科技林業(yè)有限公司免费观看的黄色视频网址、湖南永州林業(yè)局国产区一级A片视频免费看、廣東連州市林業(yè)局和廣西來(lái)賓市林業(yè)局的有關(guān)人員一级A片偷窥精品，結(jié)合華南地區(qū)桉樹(shù)人工林造林成本，本研究的經(jīng)營(yíng)成本統(tǒng)一確定如下(表2)想要免费毛片A。注：(1)造林費(fèi)用包括造林當(dāng)年的種苗女生被操免费网站、清山，除雜欧美一级高潮片黑人录像、整地国产孕妇对白在线观看网站大全下载、施肥、栽種影音先锋av资源网站、補(bǔ)植91人妻自拍、當(dāng)年的撫育以及肥料等人、財(cái)免费大型黄色网址、物的投入三级黃色毛带；在一個(gè)輪伐期中，造林當(dāng)年撫育一次99er这里只有精品视频8，次年撫育1次在线看a片欧美；(2)年固定費(fèi)用包括：土地租金按225元hm-2a-1計(jì)算，護(hù)林防火91视频久久久、病蟲(chóng)害防治等費(fèi)用按75元hm-2a-1計(jì)算婷婷五月丁香社；(3)林分受災(zāi)后作萌芽林經(jīng)營(yíng)，受災(zāi)當(dāng)年撫育一次亚洲国产91精品、次年撫育一次免费网站看a级来。

Sprout forest：萌芽林

萌芽,嫩芽,枝 Sprout | 萌芽林 Sprout forest | 萌芽林 Sprout land

reserve sprout forest：中林

reserve source of cash ==> 現(xiàn)金的儲(chǔ)備來(lái)源 | reserve sprout forest ==> 中林 | reserve statement ==> 保留指令

Mixed seeding and sprout forest：下種萌芽林

塊狀混交林 Mixed forest in groups | 下種萌芽林 Mixed seeding and sprout forest | 混交林 Mixed stand

coppice forest;sprout forest;low forest：矮林;萌芽林

天然林;自然林;自生林 natural forest;indigenous forest | 矮林;萌芽林 coppice forest;sprout forest;low forest | 矮林擇伐作業(yè);擇伐矮林作業(yè) coppice selection system