[1]田生昌,李月祥*. 不同含盐量土壤对盐柳1号苗木生长影响[J].西北林学院学报,2018,33(1):120-125.[doi:10.3969/j.issn.1001-7461.2018.01.19]
　TIAN Sheng-chang,LI Yue-xiang*. Effects of the Soils with Different Salt ContentS on the Seedling Growth of Salix psammophila ‘Yanliu-1’[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(1):120-125.[doi:10.3969/j.issn.1001-7461.2018.01.19]
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 不同含盐量土壤对盐柳1号苗木生长影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第33卷
期数:
2018年第1期
页码:
120-125
栏目:
出版日期:
2018-01-31

文章信息/Info

Title:
 Effects of the Soils with Different Salt ContentS on the Seedling Growth of Salix psammophila ‘Yanliu-1’
文章编号:
1001-7461(2018)01-0120-06
作者:
 田生昌1; 李月祥2*
 （1.宁夏农林科学院 银北盐改站，宁夏 平罗 753400；2.宁夏农林科学院，宁夏 银川 750002）
Author(s):
 TIAN Sheng-chang1; LI Yue-xiang2*
 （1.Yinbei Saline Land Improvement Station，Ningxia Academy of Agriculture and Forestry Sciences,Pingluo,Ningxia 753400,China；2.Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002,China）
关键词:
 ; 土壤盐分含量; 盐柳1号; 苗木生长; 影响
Keywords:
 ; soil salt content;  Salix psammophila ‘Yanliu-1’;  seedling growth;  effect
分类号:
S714.5
DOI:
10.3969/j.issn.1001-7461.2018.01.19
文献标志码:
A
摘要:
 为研究土壤盐分对盐柳1号（Salix psammophila ‘Yanliu-1’）苗木生长发育进程的影响，在3种不同盐分含量的土壤上栽植该树种，把株高和地径生长累积量变化作为主要因子，各选20株从萌芽开始每隔约10 d左右测量1次株高和地径，至其生长值停止增长为止，对测量结果进行分析比较，探讨土壤含盐量对苗木生长的影响。结果表明：1）该树种在3种不同盐分含量的土壤上，苗木成活率和保存率都很高，分别≥95%、≥93%，其耐盐碱能力较强，具有一定的抗盐碱特性，适宜本地栽植；2）该树种在2种低含盐量的土壤上，苗木生长量基本接近，无明显差异，与高含盐量土壤上栽植的苗木相比，生长量差异极其显著，株高是后者的2.13～2.18倍，地径是后者的1.78～1.88倍；3）该树种株高和地径的生长规律符合S型生长曲线，对Logistic方程分析均达到了极其显著的水平，苗木4月29日萌芽，7月30日左右进入生长高峰期，10月13日后转入生长停止增长期，整个苗木的生长期约为180 d；4）应用Logistic方程深化分析后可知，3种不同含盐量的土壤对该树种苗木的生长期影响不明显，各生长阶段基本上相互重合，即土壤盐分含量过高，它对苗木株高和地径生长的负面作用时间较长，基本上涵盖了全生育期；5）在3种不同盐分含量的土壤上栽植苗木后，土层0～20 cm内土壤全盐含量明显降低，土层20～50 cm内土壤全盐含量略有降低，而土壤pH值、养分含量变化不明显。总之，该树种具有较强的耐盐碱特性，适宜当地栽植，要使该树种苗木快生快长，关键是做好苗木速生期的栽培管理工作。
Abstract:
 To understand the effects of soil salinity on the growth process of Salix psammophila ‘Yanliu-1’,the seedlings were planted in the soils with three different salt contents.The plant height and diameter growth were taken as the main factors.The results showed that 1) both survival and preservation rates of the seedlings that were planted in the soils with different salt contents were high,over 95% and 93% respectively,indicating that S.psammophila ‘Yanliu-1’ had high salt tolerance.2) Seedlings that were planted in two soils with low salt contents exhibited no significant differences in growth,while compared to those that were planted in high salt content soil,the differences in growth were extremely significant,2.13 to 2.18 times higher for height growth and 1.78 to 1.88 times higher for diameter growth.3) Both the growth of tree height and ground diameter presented “S-type” curves,the equation reached the extremely remarkable level with Logistic equation analysis: seedling sprouting occurred on April 29th,peak growth began on July 30th,and the growth stopped after October 13th,the whole growth period lasted about 180 d.4) The application of Logistic equation for further analysis showed that the soils with different salt contents had no obvious effect on the growth period,the growth stages were basically coincident with each other,high salt content had a negative effect on seedling height and ground diameter growth,which basically covered the whole growth period.5) After seedlings were planted in the soils with three different salt levels,the salt contents significantly decreased in 0-20 cm soil layer,slightly decreased in 20-50 cm soil layer,while no significant changes in soil pH and nutrients.In short,S.psammophila ‘Yanliu-1’ demonstrated strong resistance to salt and alkaline,it was suitable to plant in study area.To promote seedling growth,cultivation management should be carried out during the fast growing period.

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备注/Memo

备注/Memo:
 收稿日期：2017-03-24修回日期：2017-07-04
基金项目：中央财政林业科技推广示范一般项目“宁夏引(扬)黄灌区耐盐碱林木良种盐柳1号造林示范与推广”（宁［2016］TG07号）；宁夏农林科学院自主科技成果孵化项目“抗盐碱林木良种繁育及技术示范”（NNKCGFH-2017-16）。
作者简介：田生昌，男，副研究员，研究方向:农业资源与利用。E-mail:nxpltsc@163.com
*通信作者：李月祥，男，正高级林业工程师，研究方向:林学。E-mail:m13709589473@163.com
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