南疆喀什吴屯杨的引种研究  

Introduction of Populus wutunensis in Southern Xinjiang

作　　者：金华 何远龙 邹吉祥 丁晓丽 周荣飞 姜国斌 

机构地区：[1]大连民族大学,辽宁大连116600 [2]喀什林业局,新疆喀什844000 [3]喀什大学生物与地理科学学院,新疆喀什844000

出　　处：《农学学报》2017年第10期39-44,共6页Journal of Agriculture

基　　金：辽宁省重点农业攻关计划项目"林木遗传资源保护及良种选育"(2008207001);中央高校基本科研业务费资助项目"新疆吴屯杨规模化示范及开发研究"(DC201501070103);新疆维吾尔自治区高校科研计划重点项目"吴屯杨在喀什地区生态环境下与新疆杨的适应性比较研究"(XJEDU2011I46);辽宁省科学事业公益研究基金项目"抗逆速生杨树新品种"吴屯杨"推广示范及开发研究"(2015003016)

摘　　要：农田防护林是南疆三大生态安全屏障的重要组成部分。为优化南疆防护林体系结构、提高生物多样性和生态防护效果,以引种到南疆喀什地区的吴屯杨和新疆乡土树种新疆杨为研究材料,采用样地调查法对不同立地条件下的2种杨树的树高、胸径、保存率和累积生长量进行调查研究。结果表明,在3个试验样地中,吴屯杨的平均胸径均高于新疆杨,2种杨树的平均树高无显著差异。造林3年内2种杨树的树高累积生长量上升速度较快,栽植2年后,吴屯杨的胸径累积生长量高于新疆杨。在含盐量高达0.76%的伽师县,吴屯杨的保存率仍达到37.37%,高于新疆杨,说明吴屯杨的耐盐能力比新疆杨强,且吴屯杨的生长状况优于新疆杨。本研究为吴屯杨在南疆大面积推广种植提供了实践依据。The shelter forest for farmland is an important component of the three largest ecological safetybarriers of southern Xinjiang. To optimize the shelter forest system structure of southern Xinjiang and improvethe biodiversity and ecological protection effect, an investigation was carried out on tree height, chest heightdiameter, survival rate and accumulative growth amount of two kinds of poplars（materials of this study, namely,Populus wutunensis introduced to Kashgar region of southern Xinjiang and Populus bolleana, a native treespecies of Xinjiang） under different site conditions adopting the sample-plot survey. Results showed that theaverage value of chest height diameter of Populus wutunensis was higher than that of Populus bolleana, andthere was no significant difference between the average tree height values of the two kinds of poplars in 3 experimental places. Within three years after plantation, the tree heights and accumulative growth amounts ofthe two kinds of poplars rose fast. After plantation for two years, the chest height diameter and accumulativegrowth amount of Populus wutunensis were higher than those of Populus bolleana. The survival rate of Populus wutunensis could be still up to 37.37% in Jiashi county（soil salt content was up to 0.76%）, which washigher than that of Populus bolleana; it showed that the salt-tolerance ability of Populus wutunensis wasstronger than that of Populus bolleana, and the growth status of Populus wutunensis was better than that of Populus bolleana. This investigation provides a practical basis for large-area promotion and cultivation of Populus wutunensis in southern Xinjiang.

关 键 词：吴屯杨 新疆杨 盐碱 生长状况 

分 类 号：S792.11[农业科学—林木遗传育种]