|
|
|
| Influence of direct seeding on vegetation and soil in rocky mountain |
| Ma Fengyun1,Liu Yan1,Hou Longyu1,Song Yumin2,Xing Shangjun2,Chen Huailiang1 |
| 1.Forestry College of Shandong Agricultural University,271018,Tai'an,Shandong;2.Shandong Academy of Forestry,251000,Jinan:China |
|
|
|
|
Abstract Technology of direct seeding plays more important role in vegetation restoration in barren areas.To evaluate its effects,using species diversity indices,including species abundance,Simpson diversity index,Shannon-Wiener index and Pielou evenness index,the characteristics of species diversity in forest community afforested by direct seeding and wasteland in rocky mountain in Zouwu Town,Xuecheng County was studied,and soil chemical property of both areas was also measured.The results showed that:1) In forest community,dominance species was Melia azedarach in tree layer and Rhus typhina in shrub layer,while dominance species was Vitex negundo in shrub layer in wasteland.No tree species were found except Melia azedarach,Ailanthus altissima,Platycladus orientalis.2) In forest community,species diversity indices and evenness index of tree layer were significant higher,compared with wasteland,while those indices of shrub layer were significant lower.3) In forest community,the soil nutrients,including organic matter,total N,available P,available K,conductivity,were significant higher than those of wasteland,while no significant difference was found in pH for both regions.It is a useful practical technology for direct seeding in vegetation restoration,while method of natural succession can not be used.
|
|
Received: 18 May 2009
|
|
|
|
|
null
|
|
null
|
|
|
|
