|
|
Preliminary studies on the survival rate and growth characters of Pinus kwangtungensis seedlings |
CHEN Zhen-ming1, GONG Yue-ning1, XIE Guo-guang1, WANG Hou-lin2, MIAO Shen-yu2 |
1. Administration Bureau of Naming National Nature Reserves of uangdong, Ruyuan 512727, China; 2. School of Life Sciences, Guangzhou University, GuangzJwu 510006, China |
|
|
Abstract To provide some basic data for raising and protecting the national key protected wild plant of Pinus kwangtungensis, the survival rate, stem height and stem base diameter of the plant seedlings of different ages cultivated in different ways were determined from May, 2006 to July, 2008 in Nanling National Nature Reserves.Results showed that the survival rates of the seedling groups cultivated in nutrient bags decreased from 100% at the beginning of May, 2006 to 50% by the end of experiment in July, 2008;meanwhile, the rates of the seedlings cultivated in soil and seedlings transplanted from the nature P. kwangtungensis community decreased from 100% to about 80% at the beginning to the end of experiment.Total monthly increments of plant height and stem base diameter for root-bagged seedlings were 1.01 cm and 1.39 cm, for non-bagged seedlings 2.76 cm and 0.17 mm, for transplanted seedlings 0.20 mm and 0.64 mm.Annual increments of plant height and stem base diameter for root-bagged seedlings were 12.77 cm and 17.22 cm, for non-bagged seedling 32.91cm and 1.97mm, for transplanted seedlings 2.31 mm and 7.64 mm.As the seedlings grew, the stem height and stem base diameter of the plants increased rapidly.A significantly positive relationship between plant height and stem base diameter of the seedlings was found, and the seedlings of P.kwangtungensis grew rapidly up to the age of 10 years.
|
Received: 25 October 2009
|
|
|
|
|
[1] 中华人民共和国国务院.1999.国家重点保护野生植物名录(第一批)[J].植物杂志, (5):4-11.
[2] 古炎坤, 肖绵韵, 林书宁.1993.广东乳阳山地广东松、长苞铁杉原生林的结构特征和动态分析[J].华南农业大学学报, 14(2):84-90.
[3] 张中峰, 张璐, 陈北光, 等.2006.南岭国家级自然保护区广东松群落优势种群生态位研究[J].华南农业大学学报, 27(2):74-77.
[4] 夏杰, 张璐, 陈北光, 等.2006.南岭广东松林植物区系及生态特征研究[J].华南农业大学学报, 27(2):78-82.
[5] 张璐, 苏志尧, 陈北光.2006.中国特有植物--华南五针松群落的种间关系[J].生态学报, 26(4):1063-1072.
[6] 王厚麟, 陈健辉, 缪绅裕, 等.2008.广东南岭自然保护区广东松群落特征的研究[J].广州大学学报:自然科学版, 7(1):47-52.
[7] 周佑勋, 段小平.1993.华南五针松种子休眠生理的研究[J].中南林学院学报, 13(2):122-127.
[8] 陈健辉, 缪绅裕, 王厚麟, 等.2007.华南五针松幼茎发育研究[J].广西科学, 14(2):150-154.
[9] 陈健辉, 王厚麟, 缪绅裕, 等.2007.华南五针松叶发育的研究[J].广西植物, 27(5):786-791.
[10] 黄利斌, 李晓储, 汪企明, 等.2003.7种国外栎树引种苗期试验初报[J].江苏林业科技, 30(1):1-4. |
[1] |
. [J]. Ecological Science, 2019, 38(5): 30-. |
|
|
|
|