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| 秃杉林与杉木连栽林的土壤理化性质及林木生长量比较 | |
| 引用本文： | 黄承标,曹继钊,吴庆标,韦家国,蒙跃环,李保平.秃杉林与杉木连栽林的土壤理化性质及林木生长量比较[J].林业科学,2010,46(4). |
| 作者姓名： | 黄承标 曹继钊 吴庆标 韦家国 蒙跃环 李保平 |
| 作者单位： | 1. 广西大学林学院,南宁,530005 2. 广西林业科学研究院,南宁,530001 3. 广西南丹县山口林场,南丹,547200 |
| 基金项目： | 广西“十五”林业科学研究项目(2001-27) |
| 摘 要： | 选择在杉木1代林采伐迹地上营造的8,11和14年生秃杉林及8,11和14年生杉木连栽2代林进行土壤理化性质及林木生长量对比试验。结果表明:8,11和14年生秃杉林地土壤密度依次为0.893～1.112,0.797～1.256和0.598～1.211g.cm-3,比杉木林下降0.9%～6.9%;3个林龄秃杉林地土壤总孔隙度依次为45.69%～65.33%,46.45%～68.74%和39.82%～68.26%,比杉木林提高6.6%～8.7%;3个林龄秃杉林地土壤通气度依次为3.43%～11.43%,4.15%～19.73%和2.28%～12.23%,比杉木林提高14.2%～24.4%;3个林龄秃杉林地土壤饱和持水量依次为46.89%～66.50%,40.90%～68.09%和42.36%～98.15%,比杉木林提高12.4%～14.9%;3个林龄秃杉林地土壤pH值依次为4.30～5.10,4.40～4.80和4.13～4.55,比杉木林降低1.3%～6.3%;3个林龄秃杉林地土壤有机质含量依次为46.03～71.45,34.96～68.67和25.59～79.38g·kg-1,8年生比杉木林略低,11和14年生... |
| 关 键 词： | 杉木连栽 秃杉引种 土壤理化性质 林木生长量 广西南丹县 |
Comparative Analysis on Soil Physi-Chemicai Properties and the Tree Growth in Taiwania flousiana Plantations and Successive Rotation Plantations of Cunninghamia lanceolata |
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| Huang Chengbiao,Cao Jizhao,Wu Qingbiao,Wei Jiaguo,Meng Yuehuan,Li Baoping.Comparative Analysis on Soil Physi-Chemicai Properties and the Tree Growth in Taiwania flousiana Plantations and Successive Rotation Plantations of Cunninghamia lanceolata[J].Scientia Silvae Sinicae,2010,46(4). | |
| Authors: | Huang Chengbiao Cao Jizhao Wu Qingbiao Wei Jiaguo Meng Yuehuan Li Baoping |
| Institution: | 1. Forestry College/a>;Guangxi University Nanning 530005/a>;2. Guangxi Academy of Forestry Nanning 530001/a>;3. Shankou Forest Farm of Nandan County in Guangxi Nandan 547200 |
| Abstract: | Soil physi-chemical properties and the tree growth were compared in successive rotation plantations of Cunninghamia lanceolata (CR Chinese Fir) in tree different ages(8-year-old, ll-year-old and 14-year-old), and Taiwania flousiana plantations with the same age pattern which were afforested in previous slash of Chinese Fir. The results showed that soil balk densities were 0.893～1.112, 0.797-1.256 and 0.598-1.211 g·cm-3 respectively in 8,11,14-year-old Taiwania flousiana plantations soils (0 ～ 100 cm), which were lower 0.9%-6.9% than those in CR Chinese Fir plantations. Total soil porosity in the three ages of Taiwania flousiana plantations was respectively 45.69%-65.33% ,46.45%-68.74% and 39.82%-68.26% ,and all higher 6.6%-8.7% than that in the CB Chinese Fir plantations. The soil ventilation degree was respectively 49.57%-59.71%, 44.55%-66.68% and 42.38%-66.16% ,and also higher 14. 2 %-24. 4% than that in the CR Chinese Fir plantations. The soil saturation moisture capacity was respectively 3.43%-11.43% ,4.15%-19.73% and 2.28%-12.23%, and higher 12.4%-14.9% than that in the CR Chinese Fir plantations; The saturated water contents were 46.89%-66.50%, 40.90%-68.09% and 42.36%-98.15% respectively,and higher 12.4%-14.9% than that in the CR Chinese Fir plantations, pH values of forest soil (0-40 cm layer) were 4.30-5.10,4.40-4.80 and 4.13-4.55 respectively in 8,11,14-years-old of Taiwania flousiana plantations, which were lower 1.3%-6.3% than that in the CR Chinese Fir plantations,and the organic matter contents were 46. 03-71.45,34. 96-68. 67 and 25. 59-79. 38 g-kg-1,and lower that in CR Chinese Fir plantations in the 8-year-old,however higher 23. 4%-77. 1% than that in the 11,14-years-old. Total nitrogen and hydrolysis nitrogen contents were 1.78-3.55,1.97-3. 04,2.01-3. 12 g·kg -1 and 146. 9-355. 3,185.0-370. 5,136. 6-365. 9 mg·kg-1 ,and slightly lower than that in 8-year-old is and higher 20. 1% -35. 6% in the 11,14-years-old. Available P contents were 0.5-2.7,0.6-1.5 and 0.6-2.8 mg·kg-1 respectively,and higher than that 11.1% -54.5% in the CR Chinese Fir plantations. Available K contents were 15. 4-137. 5,34. 5-115.5 and 18. 7-89. 1 mg·kg-1 ,and lower 23.6%-47. 6% than that in the CR Chinese Fir plantations. In the 8,11,14 years-old of Taiwania floasiana plantations,the average diameter was 10. 70 ,12. 67 and 14. 13 cm respectively,and higher 12. 4%-36. 7% than that in the CR Chinese Fir plantations. The average tree height were 8.63,11.47 and 13.33 m respectively,and higher 11.7% -30.2% than that in the CR Chinese Fir plantations. Tree stands volumes were 93. 308,153. 418 and 203. 824 m3·hm-2 respectively,higher 37. 7%-117. 5% than that in the CR Chinese Fir plantations. |
| Keywords: | continuous planting Cunninghamia lanceolata Taiwania flousiana introduction experiments soil physichemical properties tree growth Nandan County of Guangxi |
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