Study on the Growth of Scotch Pine in Saihanba Area

doi:10.13466/j.cnki.lyzygl.2017.05.008

Abstract

Abstract:

In order to understand the growth pattern of Scotch pine(Pinus sylvesris.var.mongolica) plantation in Saihanba,Hebei province,the growth of DBH and height of Scotch pine planted in different sites of the Saihanba were investigated.The results showed that the annual increment of DBH of Scotch pine increased until 10 years,and reached a peak of 0.90~1.20cm/a at about 10 years,then decreased and reached a relatively stable level after 20 years,with an annual increment of about 0.4~0.5cm/a.Thinning should be carried out for Scotch pine plantation to promote the growth of DBH.The annual increment of tree height of Scotch pine increased till 12~13 years,and reached the peak of about 69.99cm/a at about 12~13 years,then decreased slightly to a stable level,about 40cm/a.The growth of Scotch pine in Class I sites was higher than that of Class II sites.The growth of Scotch pine in Saihanba was higher than that of most of other areas,including Heilongjiang province and Inner Mongolia.

Key words: Saihanba, Scotch pine, tree height, DBH

CLC Number:

S791.253

ZHAO Yu, ZHANG Fei, XU Zhongqi, ZHANG Yan, CHENG Shun, CUI Tongxiang. Study on the Growth of Scotch Pine in Saihanba Area[J]. FOREST RESOURCES WANAGEMENT, 2017, (5): 39-44.

Figures/Tables 9

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地点	树龄 /a	胸径总生长量 /cm	胸径连年生长量 /(cm/a)	树高总生长量 /m	树高连年生长量 /(m/a)
内蒙古自治区呼伦贝尔沙地红花尔基^[13]	32	10.6	0.40	8.3	0.31
东北林业大学城市林业示范研究基地^[14]	32	13.5	0.28	11.1	0.25
内蒙古凉城县章古台镇^[2]	25	10.2	0.20	8.6	0.42
黑龙江省尚志市东北林业大学帽儿山试验林场^[15]	25	15.6	0.45	13.1	0.55
内蒙古自治区乌兰察布市西南部那日斯太林场^[16]	25	11.9	0.52	6.8	0.28
科尔沁沙地南缘章古台^[17]	37	13.5	—	7.3	—
塞罕坝(本研究)	32	17.0	0.42	13.2	0.35
	25	14.2	0.45	13.6	0.48
	37	17.6	0.40	14.8	0.42