杉木连栽%秃杉引种%土壤理化性质%林木生长量%广西南丹县
杉木連栽%禿杉引種%土壤理化性質%林木生長量%廣西南丹縣
삼목련재%독삼인충%토양이화성질%림목생장량%엄서남단현
continuous planting Cunninghamia lance1olata%Taiwania flousiana introduction experiments%soil physichemical properties%tree growth%Nandan County of Guangxi
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0.598～1.211 g·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25.59～79.38 g·kg-1,8年生比杉木林略低,11和14年生比杉木林提高23.4%～77.1%;3个林龄秃杉林地土壤全氮含量依次为1.78～3.55,1.97～3.04和2.01～3.12 g·kg-1,水解氮含量依次为146.9～355.3,185.0～370.5和136.6～365.9 mg·kg-1,均表现为8年生秃杉林比杉木林略低,11和14年生秃杉林比杉木林提高20.1%～35.6%;3个林龄秃杉林地土壤速效磷含量依次为0.5～2.7,0.6～1.5和0.6～2.8mg·kg-1,比杉木林提高11.1%～54.5%;3个林龄秃杉林地土壤速效钾含量依次为15.4～137.5,34.5～115.5和18.7～89.1 mg·kg-1,比杉木林降低23.6%～47.6%;3个林龄秃杉林分平均胸径依次为10.70,12.67和14.13 cm,比杉木林提高12.4%～36.7%;3个林龄秃杉林分平均树高依次为8.63,11.47和13.33 m,比杉木林提高11.7%～30.2%;3个林龄秃杉林分平均蓄积量依次为93.308,153.418和203.824 m3·hm-2,比杉木林提高37.7%～117.5%.
選擇在杉木1代林採伐跡地上營造的8,11和14年生禿杉林及8,11和14年生杉木連栽2代林進行土壤理化性質及林木生長量對比試驗.結果錶明:8,11和14年生禿杉林地土壤密度依次為0.893～1.112,0.797～1.256和0.598～1.211 g·cm-3,比杉木林下降0.9%～6.9%;3箇林齡禿杉林地土壤總孔隙度依次為45.69%～65.33%,46.45%～68.74%和39.82%～68.26%,比杉木林提高6.6%～8.7%;3箇林齡禿杉林地土壤通氣度依次為3.43%～11.43%,4.15%～19.73%和2.28%～12.23%,比杉木林提高14.2%～24.4%;3箇林齡禿杉林地土壤飽和持水量依次為46.89%～66.50%,40.90%～68.09%和42.36%～98.15%,比杉木林提高12.4%～14.9%;3箇林齡禿杉林地土壤pH值依次為4.30～5.10,4.40～4.80和4.13～4.55,比杉木林降低1.3%～6.3%;3箇林齡禿杉林地土壤有機質含量依次為46.03～71.45,34.96～68.67和25.59～79.38 g·kg-1,8年生比杉木林略低,11和14年生比杉木林提高23.4%～77.1%;3箇林齡禿杉林地土壤全氮含量依次為1.78～3.55,1.97～3.04和2.01～3.12 g·kg-1,水解氮含量依次為146.9～355.3,185.0～370.5和136.6～365.9 mg·kg-1,均錶現為8年生禿杉林比杉木林略低,11和14年生禿杉林比杉木林提高20.1%～35.6%;3箇林齡禿杉林地土壤速效燐含量依次為0.5～2.7,0.6～1.5和0.6～2.8mg·kg-1,比杉木林提高11.1%～54.5%;3箇林齡禿杉林地土壤速效鉀含量依次為15.4～137.5,34.5～115.5和18.7～89.1 mg·kg-1,比杉木林降低23.6%～47.6%;3箇林齡禿杉林分平均胸徑依次為10.70,12.67和14.13 cm,比杉木林提高12.4%～36.7%;3箇林齡禿杉林分平均樹高依次為8.63,11.47和13.33 m,比杉木林提高11.7%～30.2%;3箇林齡禿杉林分平均蓄積量依次為93.308,153.418和203.824 m3·hm-2,比杉木林提高37.7%～117.5%.
선택재삼목1대림채벌적지상영조적8,11화14년생독삼림급8,11화14년생삼목련재2대림진행토양이화성질급림목생장량대비시험.결과표명:8,11화14년생독삼임지토양밀도의차위0.893～1.112,0.797～1.256화0.598～1.211 g·cm-3,비삼목림하강0.9%～6.9%;3개림령독삼임지토양총공극도의차위45.69%～65.33%,46.45%～68.74%화39.82%～68.26%,비삼목림제고6.6%～8.7%;3개림령독삼임지토양통기도의차위3.43%～11.43%,4.15%～19.73%화2.28%～12.23%,비삼목림제고14.2%～24.4%;3개림령독삼임지토양포화지수량의차위46.89%～66.50%,40.90%～68.09%화42.36%～98.15%,비삼목림제고12.4%～14.9%;3개림령독삼임지토양pH치의차위4.30～5.10,4.40～4.80화4.13～4.55,비삼목림강저1.3%～6.3%;3개림령독삼임지토양유궤질함량의차위46.03～71.45,34.96～68.67화25.59～79.38 g·kg-1,8년생비삼목림략저,11화14년생비삼목림제고23.4%～77.1%;3개림령독삼임지토양전담함량의차위1.78～3.55,1.97～3.04화2.01～3.12 g·kg-1,수해담함량의차위146.9～355.3,185.0～370.5화136.6～365.9 mg·kg-1,균표현위8년생독삼림비삼목림략저,11화14년생독삼림비삼목림제고20.1%～35.6%;3개림령독삼임지토양속효린함량의차위0.5～2.7,0.6～1.5화0.6～2.8mg·kg-1,비삼목림제고11.1%～54.5%;3개림령독삼임지토양속효갑함량의차위15.4～137.5,34.5～115.5화18.7～89.1 mg·kg-1,비삼목림강저23.6%～47.6%;3개림령독삼림분평균흉경의차위10.70,12.67화14.13 cm,비삼목림제고12.4%～36.7%;3개림령독삼림분평균수고의차위8.63,11.47화13.33 m,비삼목림제고11.7%～30.2%;3개림령독삼림분평균축적량의차위93.308,153.418화203.824 m3·hm-2,비삼목림제고37.7%～117.5%.
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.
