干旱区研究 ›› 2018, Vol. 35 ›› Issue (3): 653-661.doi: 10.13866/j.azr.2018.03.19

• 生物资源 • 上一篇    下一篇

病虫害对沙地樟子松树高生长的影响

周晏平1, 雷泽勇1, 赵国军2, 韩艳刚1, 张岩松1, 于德良1   

  1. 1.辽宁工程技术大学环境科学与工程学院,辽宁 阜新 123000;
    2.辽宁省固沙造林研究所,辽宁 阜新 123000
  • 收稿日期:2017-08-12 修回日期:2017-08-27 出版日期:2018-05-15 发布日期:2025-11-17
  • 通讯作者: 雷泽勇. E-mail:zeyonglei@163.com
  • 作者简介:周晏平(1994-),女,硕士研究生,研究方向为森林生态工程与荒漠化. E-mail: zyping5460@163.com
  • 基金资助:
    国家自然科学基金项目(31570709)资助

Impacts of Plant Diseases and Insect Pests on Tree Height Growth of Pinus sylvestris var.mongolica Plantations on Sandy Land

ZHOU Yan-ping1, LEI Ze-yong1, ZHAO Guo-jun2, HAN Yan-gang1, ZHANG Yan-song1, YU De-liang1   

  1. 1. College of Environmental Science and Engineering,Liaoning Technical University,Fuxin 123000,Liaoning,China;
    2. Liaoning Province Institute of Sand-fixation and Afforestation Research,Fuxin 123000,Liaoning,China
  • Received:2017-08-12 Revised:2017-08-27 Published:2018-05-15 Online:2025-11-17

摘要: 基于辽宁西北部章古台地区31块沙地樟子松人工林标准地树高调查数据,通过对14种树高生长模型进行拟合、评价、检验,选出最适合该地区的树高生长模型,运用该模型及受病虫害干扰的解析木资料拟合其树高生长过程,并计算树高的连年生长量、平均生长量及初始防护成熟龄,以此分析病虫害对树高生长的影响。结果表明:Richards模型是预测沙地樟子松树高生长的最适模型(MAE、SSE、RMSE最小,R2最大),而且Richards模型拟合受病虫害干扰的樟子松树高生长过程也符合模型的生物学意义。对比健康和病虫害两种状况下樟子松树高生长预测曲线,表明该地区受病虫害干扰的起始年龄为16 a左右,病虫害使沙地樟子松树高总生长量平均降低了30.57%,使其初始防护成熟龄提前了6 a,同时达到初始防护成熟龄时的树高降低了27.92%,因此,病虫害大大缩短了樟子松的生长过程;但是,该地区16 a左右开始受病虫害干扰的沙地樟子松,连年生长量和平均生长量的最大值没有受到明显影响。

关键词: 樟子松(Pinus sylvestris var. mongolica), 固沙林, 树高, 病虫害, 生长模型, 生长量

Abstract: The first generation introduction of Mongolian scots pine (Pinus sylvestris var.mongolica) plantations on sandy land has been implemented in Zhanggutai in northwest Liaoning Province,China,and the final felling regeneration stage has been reached after the plantations grow for more than 50 years.In this study,the tree height growth of the first generation of Mongolian scots pine plantations on sandy land was summarized,and a theoretical basis was provided for further studying and analyzing the impact of plant diseases and insect pests on the tree height growth.The 14 candidate models were selected to fit the tree height-age relationship based on the data from 31 temporary sample plots of Mongolian scots pine plantations on sandy land located in Zhanggutai in northwest Liaoning Province,China.The models were evaluated and tested to identify the best model for the growth of Mongolian scots pine plantations on sandy land.Furthermore,the best model and the data of analytic trees suffered from plant diseases and insect pests were used to fit the individual tree height growth process.The annual growth and average growth of the plantations suffered from plant diseases and insect pests and those of the initially-protected mature plantations were calculated to provide some references for further studying and analyzing the impact of plant diseases and insect pests on tree height growth.The results indicated that the Richards model was adopted to develop the models for the tree height growth of Mongolian scots pine plantations on sandy land.A best fitting of the Richards model was achieved among the 14 candidate models to predict the tree height of Mongolian scots pine plantations on sandy land,which provided the most accurate of predicting the tree height growth with the lowest mean absolute error (MAE),residual sum of squares (SSE) ,root mean square error (RMSE) and the highest coefficient of determination (R2).Moreover,the Richards model could also be used to make an efficient fitting to the tree height growth of the plantations suffered from plant diseases and insect pests.After compared the predicted curves of tree height growth of the healthy plantations and the plantations suffered from plant diseases and insect pests,it was found that the Mongolian scots pine plantations about 16 years old on sandy land in the study area began to suffer from plant diseases and insect pests.The disturbance of plant diseases and insect pests could reduce 30.57% average maximum of tree height of Mongolian scots pine plantations on sandy land compared with the healthy plantations.As a result the maturity of initially-protected plantations could advance for 6 years,and the tree height of the plantations suffered from plant diseases and insect pests was decreased by 27.92%.However,the impact of plant diseases and insect pests on the maximums of annual growth and of average growth of the 16-year-old Mongolian scots pine plantations was not so significant in Zhanggutai.

Key words: Pinus sylvestris var.mongolica, sand-fixation forest, tree height, insect pests, growth model, growth