Gradient distribution of soil n, p, and k along the distance from picea mongolica seedlings root surface .

沙地云杉幼苗根表土體中 n 国内偷窥一区二区三区视频、 p 欧美老妇爱操、 k 的梯度分布日韩亚洲欧美激情视频。

The research demonstrated that the introduction of Picea mongolica from Baiyinaobao to Tongliao city and to Yijinhuoluo county was very successful.

4研究結(jié)果表明亚洲欧美自拍偷拍，沙地云杉苗木從原產(chǎn)地白音敖包向東部的通遼市，以及西部的伊金霍洛旗引種是十分成功的国产交换3p国产精品，但是由于時(shí)間有限一级黄色视频舔的视频免费看，目前還不能下定論。

And black spruce Picea mariana (Mill BSP were studied in order to understand the adaptation mechanisms employed by the foliage to deal with fluctuations in boreal climatic conditions.

和黑云杉樹(shù)枝氣體交換日變化的特性進(jìn)行了試驗(yàn)研究，以便于了解在北部氣候條件下葉對(duì)環(huán)境變化的適應(yīng)機(jī)理在线二区三区国产免费看污。

The spatial regeneration pattern of the Picea wolsonii was studied in the two plots of different disturbance intensity according to the spatial sampling method and design.

依據(jù)地統(tǒng)計(jì)理論和方法www.色色色网，采取小支撐多樣點(diǎn)的空間取樣設(shè)計(jì)，在干擾強(qiáng)度不同的兩個(gè)華北落葉松林分中設(shè)置樣地自拍偷自拍亚洲精品偷一，對(duì)云杉更新幼苗的空間格局進(jìn)行了定量比較研究点击进入a在线影院。

So, in order to provide scientific afforestation methods and guideline, it is rather necessary to introduce and popularize Picea mongolica in arid and semiarid regions.

但是該樹(shù)種是云杉屬中的特殊種，在半干旱草原中于沙地上能良好生長(zhǎng)欧美一级AAAAA特黄片免费看，有罕見(jiàn)的防風(fēng)阻沙能力色色碰精品，大有在半干旱區(qū)甚至干旱區(qū)引種推廣的必要。

Picea mongolica, which is a characteristic and one of the first afforestation tree species in Inner Mongolia, plays a great role at the vegetation recovery in the desertfied areas.

沙地云杉是內(nèi)蒙古赤峰地區(qū)與錫林浩特的局部地段所特有鄉(xiāng)土樹(shù)種之一日韩自拍中文在线视频观看，也是沙地造林的首選樹(shù)種之一欧美黄色视频第一次，對(duì)于恢復(fù)沙化土地植被具有重要的意義。

Picea mongolica is a rare and endangered species in the world, which is conferred to the tide of "biology gene bank" and "living fossil", and mainly distributes in Baiyinaobao sandy land of Chifeng.

沙地云杉是世界上罕見(jiàn)的樹(shù)種黄网址免费，也是世界珍稀瀕危樹(shù)種之一无码强奷乱码中文字幕，有&生物基因庫(kù)&和&活化石&之稱，集中分布在赤峰市白音敖包沙地久久这里有视频。

Picea schrenkiana ; Population structure ; life table ; survival curve

天山云杉；種群結(jié)構(gòu)国产日韩欧美高清在线播放视频；靜態(tài)生命表一区在线亚洲；存活曲線

Based on different treatments that had been used, this paper studied the breeding techniques and annual growth rhythm of the Picea mongolica seedlings.

采用不同做床方式、不同播種密度91免费黄色视频，夏季苗床不同遮蔭方式等方法研究了沙地云杉育苗技術(shù)及其年生長(zhǎng)規(guī)律欧美又粗又长AAAAA。

Picea Dietr.; molecular marker ; genetic diversity

云杉屬；分子標(biāo)記欧美性交网在线；遺傳多樣性