DB43-T 2238-2021 楊樹大徑級用材林培育技術(shù)規(guī)程

ICS

65.020.40CCS

B

43湖 南 省 地 方 標 準DB43/T

2238—2021楊樹大徑級用材林培育技術(shù)規(guī)程Regulations

of

large-size

timber

cultivation

for

poplar

plantations2021

-

12

-

07

發(fā)布

2022

-

-

實施湖南省市場監(jiān)督管理局

發(fā)

布DB43/T

2238— 前言························································································································

Ⅲ1 ·····················································································································

12規(guī)范性引用文件······································································································13 術(shù)語和定義············································································································14 主要經(jīng)營指標·········································································································15造林地選擇············································································································26 ·····················································································································

27 林分撫育···············································································································38 病蟲害防治············································································································49 ·····················································································································

410檔案管理··············································································································4DB43/T

2238— 本文件按照

GB/T

—2020《標準化工作導則 第

1

部分：標準化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定起草。請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構(gòu)不承擔識別專利的責任。本文件由湖南省林業(yè)局提出。本文件由湖南省林業(yè)標準化技術(shù)委員會歸口。本文件起草單位：中南林業(yè)科技大學、湖南茂源林業(yè)有限責任公司。本文件主要起草人：徐剛標、宋國寶、唐潔、姜小龍、梁艷、李河、龔細娟、翁文源。III林分年平均蓄積生長量應(yīng)達到

m

以上。DB43/T林分年平均蓄積生長量應(yīng)達到

m

以上。1

害防治、主伐、檔案管理等內(nèi)容。本文件適用于湖南省楊樹大徑級用材林培育。2

規(guī)范性引用文件文件。GB

6001 育苗技術(shù)規(guī)程GB/T

15776 造林技術(shù)規(guī)程LY/T

1195 楊樹速生豐產(chǎn)用材林主要栽培品種苗木LY/T

1495 楊樹人工速生豐產(chǎn)用材林LY/T

1895 楊樹速生豐產(chǎn)用材林定向培育技術(shù)規(guī)程3

術(shù)語和定義本文件沒有界定的術(shù)語和定義。4

主要經(jīng)營指標4.1 面積集中連片，林分面積不少于

1.0

ha。單一無性系的林分面積，不超過

20.0

。4.2 保存率按

LY/T

1495

執(zhí)行。4.3 生長量34.4 干形樹干圓滿、通直、無節(jié)疤。DB43/T

2238—5

造林地選擇5.1 立地條件5.1.1 渠路旁和村莊附近等地塊。5.1.2 質(zhì)地為沙壤、輕壤、壤土，容重

g/ml

以下；肥力較高，全氮和有機質(zhì)含量應(yīng)分別在

0.1％和0.8％以上；有效層厚度

m

以上；常年平均地下水位在

1.5

m～2.0

m

5.1.3 18

以上。5.1.4 水淹程度季節(jié)性水淹的灘地，洪水期林木水淹深度

2

m

以下，水淹時間不超過

d。6

6.1 無性系()選擇6.2 苗木6.2.1 苗木培育苗木繁殖、管理及育苗技術(shù)，按

GB

6001

執(zhí)行。6.2.2 苗木分級按

LY/T

1195

執(zhí)行。6.2.3苗木規(guī)格宜選用

I

級苗。6.2.4 苗木處理造林前，修剪苗干上側(cè)枝，將打捆的苗干基部放入水中浸泡

2

d～7

d。苗干基部的浸水深度，宜達到苗干高度的一半。6.3 無性系配置以主栽無性系為主，宜采用多個無性系塊狀配置造林。6.4 整地

cm～40

cm

50m～依據(jù)立地條件，造林密度為

200

株／ha～330

株／依據(jù)立地條件，造林密度為

200

株／ha～330

株／，單株營養(yǎng)面積不低于

m

。寬—窄行配置，80

m，開挖

1

1.2

m、底寬

m

1.5

m向開溝筑壟，一溝一壟，壟高

m～

m。6.5 造林密度2株距為

4

m～6

m

4

m～6

m，寬行距為

m～30

m。6.6 定植點配置方向一致。6.7 造林時間12

月至翌年

3

月。6.8 插干造林用鋼釬打孔，孔的直徑為

4

cm～5

cm，孔深為

80

cm～100

cm。插入苗干前，孔中灌入適量的水或泥漿。插入苗干直至孔底，回填松土，四周錘實，培土成饅頭狀。6.9 補植造林后冬季進行補植，保證造林成活率達

95％以上。7

林分撫育7.1 中耕除草4 8

2

1

月～5

2

月～10

5

4 810

cm。農(nóng)林間作林分，以耕代撫。7.2 間作持

1

m

左右距離。7.3 整形修枝7.3.1 修枝時間，秋冬落葉休眠時期；除萌時間，4

月中下旬至

5

月上中旬。7.3.2 2a～

2∶3

干

2

m

以下的萌條?！?/p>

1∶3

7.3.3 應(yīng)貼近樹干，修剪口平滑，不撕裂樹皮，不留樹茬。修枝后，及時清除枝條。DB43/T

2238—7.4 施肥造林后，2a～7a，每年

5

月中旬沿樹冠滴水線挖施肥溝（寬為

30

～

cm，深為

20

～

cm），

～0.4

或復(fù)合肥磷酸氨（34-17-0）

～