[1]王鹏,万盼*. 小陇山人工油松幼苗苗高生长研究[J].西北林学院学报,2018,33(4):100-104.[doi:10.3969/j.issn.1001-7461.2018.04.16]
 WANG Peng,WAN Pan*. Growth Regularity of Pinus tabulaeformis Plantation in the Xiaolongshan Mountain[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(4):100-104.[doi:10.3969/j.issn.1001-7461.2018.04.16]
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 小陇山人工油松幼苗苗高生长研究()
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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4期
页码:
100-104
栏目:
出版日期:
2018-07-31

文章信息/Info

Title:
 Growth Regularity of Pinus tabulaeformis Plantation in the Xiaolongshan Mountain
文章编号:
1001-7461(2018)04-0100-05
作者:
 王鹏1万盼2*
 (1.甘肃省小陇山林业实验局 林业科学研究所,甘肃 天水 741020;2.中国林业科学研究院 林业研究所,国家林业局林木培育重点实验室,北京 100091)
Author(s):
 WANG Peng1WAN Pan2*
 (1.Xiaolongshan Forestry Experimental Bureau,Research Institule of Forestry in Gansu Province,Tianshui,Gansu 741022,China; 2.Research Institue of Forestry,Chinese Academy of Forestry,Key Laboratory of Tree Breeding and Cultivation,State Forestry Administration,Beijing 100091,China)
关键词:
 理论生长方程差分方程苗高土壤养分油松
Keywords:
 theoretical growth equations difference equation seedling height nutrient content Pinus tabulaeformis
分类号:
S791.254
DOI:
10.3969/j.issn.1001-7461.2018.04.16
文献标志码:
A
摘要:
油松(Pinus tabulaeformis)是小陇山区域的主要树种,建立油松苗高的生长模型,掌握其生长进程,为科学经营小陇山油松人工林奠定基础。以甘肃小陇山人工油松幼苗为研究对象,利用理查德(Richards)和舒马赫(Schumacher)理论生长方程得出相应的差分方程,通过差分方程建立油松苗高的生长模型,并分析了苗高与土壤环境因子的相关性。结果表明,通过2个常用的生长方程得到的4个差分方程均能够预测油松苗高生长,相关指数达到0.8以上,预测精度均达到98%以上;但舒马赫理论生长方程的差分方程H(t+1)=aHt/at/t+1模型的预测精度最高,为99.20%,其相关指数、决定系数分别为0.847和0.718,且求得参数a=8.098,符合油松幼苗的生长规律;通过分析苗高与土壤养分相关性,表明油松幼苗苗高与土壤有机质、全N、全P和有效P含量呈正相关。可见,H(t+1)=8.098Ht/8.098 t/t+1为预估油松苗生长及进程的最优模型;同时,在培育油松苗过程中,应该注重土壤有机氮肥和磷肥的补充。
Abstract:
Pinus tabulaeformis is a major tree species occurring in the Xiaolongshan area,to provide a scientific reference for planting of P.tabulaeformis,we followed some methodologies to model its growth of height.Seedlings of P.tabulaeformis plantation in Xiaolongshan were studied in this paper.According to the theoretical growth equations of Richards and Schumacher,the difference equation was got and were used to establish the growth model of the seedlings.In addition,the correlation between seedling height and soil environmental factors was analyzed.The results indicated that 4 difference equations were got by 2 theoretical growth equations,which could be used to predict the high growth of the seedling,and their correlation index reached above 0.8,the accuracy of the prediction also reached above 98%.Howere,H(t+1)=aHt/a t/t+1,the difference equation derived by Schumacher had higher prediction accuracy (99.20%),its correlation index and determination index were 0.847 and 0.718,respectively,and the parameter a of the equation was 8.098 reasonable for the growth of P.tabulaeformis.The seedling height of was negatively correlated with the content of soil organic matter,total nitrogen,total phosphorus and available phosphorus.So,model H(t+1)=8.098 Ht/8.098 t/t+1 was the optimal model for predicting the growth of P.tabulaeformis.Increasing the soil organic nitrogen fertilizer and phosphate fertilizer were the main ways to improve the growth of seedling in its growth stage.

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备注/Memo

备注/Memo:
 收稿日期:2017-10-31修回日期:2018-01-16
基金项目:“十三五”国家重点研发计划(2016YFD0600203)。
作者简介:王鹏,男,本科,研究方向:森林经营。E-mail:15693885892@163.com
*通信作者:万盼,男,博士,研究方向:森林经营理论与技术。E-mail:wp7413841@163.com
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