不同林龄核桃人工林可溶性糖和淀粉含量变化特征
Changes in Soluble Sugar and Starch Content in Walnut Plantations of Different Ages
张兴锐 1李颖 2蔺相达 3袁东生 4王江涛 3刘海雷 4郭五雷1
作者信息
- 1. 邯郸市林业技术推广站,河北 邯郸 056002
- 2. 河北农业大学林学院,河北 保定 071000
- 3. 邯郸市林业和草原科研中心,河北 邯郸 056002
- 4. 邯郸市林业局,河北 邯郸 056002
- 折叠
摘要
为了研究植物器官的内稳性以及各元素在不同器官中的分配比例和相互关系,本文选取河北省太行山区4种常见核桃人工林林龄类型,对其地上和地下部分各器官组织内的可溶性糖和淀粉含量进行了测定,分析其变化规律.结果表明:不同林龄核桃人工林地上和地下各器官组织中可溶性糖含量均高于淀粉含量;随着林龄增加,可溶性糖含量在叶片中表现为先下降后上升;在枝中表现为先上升后下降.地下部分从总量看,可溶性糖和淀粉含量最高的均是处理1;从林龄看,可溶性糖含量随林龄增加而逐渐降低,从测定部位看,主根可溶性糖含量均为最高;淀粉含量的规律性不明显.该结果为判断植物个体生长过程中的限制性元素和养分利用提供参考.
Abstract
To study the internal stability of plant organs and the distribution ratios and interrelationships of various elements in different organs,this study selected four common walnut artificial forest age types in the Taihang Mountains of Hebei province,and measured the soluble sugar and starch content in the above ground and underground organs and tissues,analyzing their changing patterns.The results showed that the soluble sug-ar content in the above and underground organs and tissues of walnut plantations of different ages was higher than the starch content.As the age of the forest increases,the soluble sugar content in the leaves first de-creased and then increased.In the branches,it first rised and then fell.From the perspective of total amount,the treatment 1 had the highest content of soluble sugars and starch in the underground part.From the perspec-tive of forest age,the soluble sugar content gradually decreased with increasing forest age.From the measure-ment site,the soluble sugar content in the main root was the highest,and the regularity of starch content was not obvious.This result provides a reference for determining the limiting elements and nutrient utilization dur-ing the growth process of individual plants.
关键词
核桃人工林/林龄/可溶性糖/淀粉Key words
Walnut plantation/Forest age/Soluble sugar/Starch引用本文复制引用
基金项目
河北省创新能力提升计划项目(20536807D)
出版年
2024
NETL
NSTL
万方数据