| 京西山区人工林水分参数的研究（Ⅲ） |
| |
| 引用本文： | 张建国,李吉跃,姜金璞.京西山区人工林水分参数的研究（Ⅲ）[J].北京林业大学学报,1994(4). |
| |
| 作者姓名： | 张建国 李吉跃 姜金璞 |
| |
| 作者单位： | 北京林业大学森林资源与环境学院，北京林业大学实验林场 |
| |
| 摘 要： | 该文应用ＰＶ技术研究了京西山区油松、侧柏、白皮松、栓皮栎、元宝枫、刺槐及火炬树等７个树种人工林水分参数ＲＷＣ￣（ｔｌｐ）、ＲＯＷＣ￣（ｔｌｐ），Ｖｓ，Ｖａ，Ｖａ／Ｖｓ，Ｖ＿０／ＤＷ和Ｎｓ／ＤＷ的季节变化。研究表明：①３个针叶树种的ＲＷＣ￣（ｔｌｐ）和ＲＯＷＣ￣（ｔｌｐ）季节变化不明显，而４个阔叶树种的ＲＷＣ￣（ｔｌｐ）和ＲＯＷＣ￣（ｔｌｐ）则均具有随季节和枝叶生长发育进程而变化的趋势；②７个供试树种的Ｖｓ及Ｖａ／Ｖｓ均表现出不同的季节变化规律，表明不同树种之间细胞原生质的亲水性有较大的差异；③在Ｖ＿０／ＤＷ和Ｎｓ／ＤＷ的季节变化中，供试阔叶树种较供试针叶树种更为明显，其中栓皮栎和元宝枫、刺槐和火炬树、油松和白皮松的变化趋势分别基本一致；④依据供试树种各种水分参数的变化，应用Ｆｕｚｚｙ数学中隶属函数的方法，综合评判树种的耐旱能力的结果由强至弱为：侧柏、白皮松、油松、栓皮栎、元宝枫、火炬树和刺槐，这一结果与其苗木的研究结果及野外的观察结果是一致的。
|
| 关 键 词： | 耐旱性，水分参数，相对含水量，自由水，束缚水，隶属函数 |
A Study on Water Parameters of Plantations in Mountain Areas of West Beijing(Ⅲ) |
| |
| Zhang Jianguo,Li Jiyue,Jiang Jinpu.A Study on Water Parameters of Plantations in Mountain Areas of West Beijing(Ⅲ)[J].Journal of Beijing Forestry University,1994(4). |
| |
| Authors: | Zhang Jianguo Li Jiyue Jiang Jinpu |
| |
| Abstract: | The relationships and seasonal changes of water parameters, RWC￣(tlp),ROWC￣(tlp),Vs,Va,Va/Vs,V_0/DW and Ns/DW in plantations of Pinus tabulaeformis,Platycladus orien-talis,Pinus bungeana, Quercus variabilis, Acer truncatum,Robinia pseudoacacia and Rhus ty-phina in mountain area,west Beijing were studied using the Pressure-Volume method in thispaper. The results show that:(1)it is not clear the seasonal changes of RWC￣(tlp)andROWC￣(tlp)in 3 conifer tree species,but in 4 broad-leaved tree species,their RWC￣(tlp)and ROWC￣(tlp)vary with season and growth and development of branches and leaves;(2) there are differentseasonal changes of Vs and Va/Vs in 7 tree species examined,indicating that there is a greatdifference in hydrophilicity of cellular protoplasm of tree species examined;(3) the seasonalchanges V_0/DW and Ns/DW of broad-leaved tree species examined are more clear than thatof conifer tree species examined,in which the tendency of the changes in Q.variabilis and A.truncatum,R .pseudoacacia and R. typhina,P.tabulaeformis and P. bungeana separately areidentical on the whole;(4)according to the changes and comprehensive appraisal of all kindsof water parameters in tree species examined,their ability of drought tolerance are arrangedfrom strong to weak as fallowing:P. mentalis,P. bungeana,P. tabuleaformis,Q. variabilis,A. truncatum,R. typhina and R. pseudoacacia,using subordinate function in Fuzzy mathe-matics.This is identical with the results of studying on their seedlings and the results of theirfield observation. |
| |
| Keywords: | drought tolerance water parameter relative water content free water con-tent bound water content subordinate function |
| 本文献已被 CNKI 等数据库收录！ |
|
