期刊文献+

Effect of Distances from Different Trees Species on the Properties of Mollic Horizon

Effect of Distances from Different Trees Species on the Properties of Mollic Horizon
下载PDF
导出
摘要 The study area is located in Duhok province-Kurdistan region-Northern Iraq and including two locations the first location is situated in Galbook village and the vegetation cover is trees of (Quercus aegilops L.), the second location is situated in Koradeer village that covered with threes of Prunus dulcis (Mill.) Webb.. Disturbed surface soil samples at depth 0-30 cm were collected at four different distances (1, 5, 10 and 15 m) from the tree with randomized selection three trees in each study location. Soil organic matter decreases with increasing distances from tree in both locations under two different trees species, which is attributed to the effect of tree crown. Ordinarily, organic matter content in both locations correspond to the requirements of Mollisols. Statistical analysis of data showed significant differences in organic matter content between locations. Cation exchange capacity is high under tree crown and decreasing with distances from tree in both locations, as a result of decreasing organic matter and increasing calcium carbonate with distances. Commonly soil pH is slightly increased with increasing distances from tree because of increasing calcium carbonate with distances and decreasing organic matter content. Calcium was not uniform with distances and Mg decreasing with distances in both locations. The values of fine clay/coarse clay and fine clay/total clay of soil samples confirm development of the soils under study. Porosity percentage under tree crown is high and decreasing with distances. Soil bulk density was increased with distances in both locations, as a result of decreasing organic matter content with distances. This study aims to explain the effect of tree distances and species on the mollic horizon properties.
出处 《Journal of Agricultural Science and Technology(A)》 2013年第8期581-591,共11页 农业科学与技术(A)
关键词 Tree species DISTANCES MOLLISOLS physical properties chemical properties. 松软土 地平线 树种 属性 有机质含量 土壤有机质 阳离子交换容量 数据统计分析
  • 相关文献

参考文献30

  • 1Soil Survey Staff, Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys, 2nd ed., U.S. Dept. Agric. Handbook 436, U.S. Govet, Printing Office, Washington DC, Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture, Soil Survey Geographic (SSURGO) Database [Online], 2009, http://Soildatamart.nrcs.
  • 2D.S. Fanninng, M.C.B. Fanning, Soil Morphology, Genesis and Classification, John Wiley and Sons, USA, 1989, p. 395.
  • 3G. Ozsoy, E. Aksoy, Genesis and Classification of some Mollisols Developed under Forest Vegetation in Bursa, Turke [Online], 2012, http://www.fspublishers.org.
  • 4P. Barnes, B. Wilson, P. Lockwood, Vertical and horizontal distribution of soil properties influenced by individual trees in grazing landscapes of NSW Australia, in 2010 19th World Congress of Soil Science, Soil Solutions for A Changing World, Aug. 1-6, 2010.Brisbane, Australia.
  • 5L. Augusto, J. Ranger, D. Binkleyb, A. Rotlae, Impact ot several common tree species of European temperate forests on soil fertility, Ann. For. Sci. 59, pp. 233-253 233INRA, EDP Sciences, 2002. DOI: 10.1051/forest: 2002020.
  • 6U. Norden, Influence of tree species on acidification and mineral pools in deciduous forest soils of South Sweden,Water, Air Soil Pollution 76 (1994) 363-381.
  • 7P.J. Schoeneberger, D.A. Wysocki, E.C. Benham, W.D. Broderson, Field Book for Describing and Sampling Soils, Version 2.0, 2002, p. 189.
  • 8K.E. Spaeth, F.B. Pierson, M.A. Weltz, R.G. Hendricks, Grazing land hydrology issues: Perspectives for the 21st century, Soc. Range Manage, 1996, p. 136.
  • 9R.A. Dahlgren, W.R. Horwath, K.W. Tate, T.J. Camping, Blue oak enhance soil quality in California oak woodlands, California Agr. 57 (2003) 42-47.
  • 10L.E. Jackson, R.B. Strauss, M.K. Firestone, J.W. Bartolome, Influence of tree canopies on grassland productivity and nitrogen dynamics in deciduous oak savanna, Agr. Ecosys. Environ. 32 (1990) 89-105.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部