摘要
该试验对福建顺昌常绿阔叶次生林和杉木人工林的土壤物理性质进行了研究,结果表明:常绿阔叶次生林土壤各层次具有比杉木林更低的容重,更高的土壤孔隙度和土壤渗透系数。次生林0~10cm、10~20cm、20~40cm和40~60cm土层的容重分别为0.839g·cm^(-3)、0.928g·cm^(-3)、1.106g·cm^(-3)和1.125g·cm^(-3),仅分别为杉木林的84.14%、82.38%、91.61%和88.50%,而总孔隙度分别为:62.60%、55.14%、54.90%和51.63%,分别是杉木林的1.111、1.073、1.094和1.056倍,非毛管孔隙度分别为:19.54%、17.51%、15.90%和10.33%,分别是杉木林的1.208、1.317、1.385和1.767倍,土壤渗透系数分别为12.15mm·min^(-1)、10.62mm·min^(-1)、6.53mm·min^(-1)和2.95mm·min^(-1),分别是杉木林的1.537倍、2.231倍、3.908倍和5.465倍。
Soil physical properties of an evergreen broad leaved secondary forest and a Chinese fir（Cunninghamia lanceolata）plantation in Shunchang County,Fujian Province,were studied. Soil bulk density was lower,and porosityand soil permeability were higher at different soil layers in the secondary forest than in the Chinese fir plantation. Soilbulk density at 0-10cm,10-20cm,20-40cm and 40-60cm soil depth in the secondary forest were 0.839 g·cm-3,0.928 g·cm-3,1.106 g·cm-3and 1.125 g·cm-3,respectively,and they were as much as 84.14%,82.38%,91.61% and88.50%,respectively,of those in the Chinese fir plantation. Total porosity at the four soil depth in the secondary for-est were 62.60%,55.14%,54.90% and 51.63%,respectively,and they were as much as 1.111,1.073,1.094 and1.056 times,respectively,as those in the Chinese fir plantation. Non-capillary porosity at the four soil depth in thesecondary forest were 19.54%,17.51%,15.90% and 10.33%,respectively,and they were as much as 1.208,1.317,1.385 and 1.767 times,respectively,as those in the Chinese fir plantation. Coefficient of permeability at the four soildepth in the secondary forest were 12.15 mm·min-1,10.62 mm·min-1,6.53 mm·min-1and 2.95 mm·min-1,respective-ly,and they were as much as 1.537,2.231,3.908 and 5.465 times,respectively,as those in the Chinese fir plantation.
作者
陈荣
Chert Rong(Nanping Foresty Bureau, Nanping 353000, Chin)
出处
《安徽农学通报》
2017年第15期89-92,共4页
Anhui Agricultural Science Bulletin
关键词
常绿阔叶次生林
杉木人工林
土壤物理性质
Evergreen broad leaved secondary forest
Chinese fir（Cunninghamia lanceolata）plantation
Soil physical properties
