|
|
|
| Soil structure characteristics and health evaluation of different revegetation types around the coastal damaged mountain |
| Yang Peng1,2,Li Chuanrong1,2,Sun Minggao2,Zhang Liudong2,Sun Jiushi3,Liu Puxiao2 |
| 1.Taishan Mountain Forest Ecosystem Research Station,271018,Tai'an,Shandong;2.Key Laboratory of Agriculture Ecology and Environment,Shandong Agriculture University,271018,Tai'an,Shandong;3.Yantai Forestry Administration,264001,Yantai,Shandong: China |
|
|
|
|
Abstract The soil structure characteristics were studied on seven revegetation types by using dry sieving and principal component analysis(PCA) in Huangwu County,Yantai City,Shandong Province.The results show that the soil densities of artificial revegetation were significantly lower than that of mature brushwood,among which,that of Quercus acutissima and Pinus thunbergii mixed forest was the lowest.The discending order of effects of soil porosity improved by plantations is: mixed forests,pure forests,brushwood.The soil porosities in 0-10 cm layer were largger than that of 10-20 cm.Soil water carrying capacities and its average mass diameters of soil aggregate of plantations were all higher than that of brushwood.Among these revegetations,the improved soil porosity of Quercus acutissima and Pinus thunbergii mixed forest was the best.Comprehensive evaluations of soil structure health indicate that the health of brushwood was the worst,that of Quercus acutissima and Pinus thunbergii mixed forest was the best.The results can provide scientific references for revegetations in the similar damaged mountain area.
|
|
Received: 12 October 2009
|
|
|
|
|
|
|
