[1]ZHANG Xue-pei,WANG Xiao-xian.Vertical Changes of Soil Moisture and Ecological Impacts in West Shanxi Loess Plateau[J].Research of Soil and Water Conservation,2009,16(02):200-204.
Copy
Vertical Changes of Soil Moisture and Ecological Impacts in West Shanxi Loess Plateau
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
16
Number of periods:
2009 02
Page number:
200-204
Column:
Public date:
2009-04-20
- Title:
- Vertical Changes of Soil Moisture and Ecological Impacts in West Shanxi Loess Plateau
- Keywords:
- soil; moisture; normal; distribution; correlation; analysis; SPSS
- CLC:
- S152.7
- DOI:
- -
- Abstract:
- Soil nutrients characteristics under four economic forest lands(Prunus armeniacia,Diospyros kaki,Zanthoxylum bungeanum,Juglans regia) were studied to better understand the soil nutrients status and change laws of economic forest land in Weibei Loess Plateau.The results showed that the variance range of soil nutrients content was wide,and amplitude of available nitrogen was the lowest and available phosphorous was the highest(74.2%).There were differences in soil nutrients among different economic forest lands.Zanthoxylum bungeanum land had the highest organic matter and available potassium content; Prunus armeniacia land took second place,Diospyros kaki and Juglans regia lands are the lowest.Available nitrogen content in the four economic forest lands decreased in the order:Juglans regia land>Zanthoxylum bungeanum land>Prunus armeniacia land>Diospyros kaki land,and available phosphorus changed in the order:Prunus armeniacia land>Diospyros kaki land>Zanthoxylum bungeanum land>Juglans regia land.Further more,soil nutrients in different layers of soil profile were significantly different,and top soil in the 0-20 cm layer had the highest contents.Nutrients contents decreased with the increase in profile depth,while the amplitude decreased simultaneously,and ’surface soil aggregation effect’ was obvious.There were correlations among nutrients contents.Organic matter was significantly correlated with available potassium(P<0.05) and available nitrogen(P<0.01).Available nitrogen significantly correlated with available potassium,while,available phosphorus poorly correlated with other nutrients and had no obvious law.According to the grading standard of soil nutrients on Loess Plateau,soil organic matter and available nitrogen contents in the investigated economic forest lands were at low level,but these lands were all rich in available potassium and available phosphorus and can meet requirements in tree growth.
- References:
-
[1] 杨文治,邵明安.黄土高原土壤水分研究[M].北京:科学出版社,2000:86-113.
[2] 中国气象局.地面气象观测规范[M].北京:气象出版社,2003:5-9,98-101.
[3] 黄芳,徐红松.土壤水分测试技术研究进展[J].安徽农学通报,2007,13(11):76-77.
[4] 袁志发,周静芋.多元统计分析[M].北京:科学出版社,2002:75-98.
[5] 陈洪松,邵明安, 王克林.黄土区荒草地和裸地土壤水分的循环特征[J].应用生态学报,2005,16(10):1853-1857.
[6] 薛薇.SPSS统计分析方法及应用[M].北京:电子工业出版社,2004:1-3,233-292.
[7] 余云飞,许学友.土壤水分空间分布即时间稳定性的探讨[J].农业环境与发展,2006(3):89-92.
- Similar References:
Memo
-
Last Update:
1900-01-01