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- Title
Spatial distribution pattern of soil nitrogen in Huanghuadianzi watershed and related affecting factors.
- Authors
LI Long; YAO Yun-feng; QIN Fu-cang; GAO Yu-han; ZHANG Mei-li
- Abstract
This research was conducted in Huanghuadianzi watershed in Aohan, Chifeng, Inner Mongolia. Geostatistic was used to study the spatial distribution of soil nitrogen and their affecting factors. The results showed that the soil nitrogen contents in all layers distributed as an island shape, and the high value areas were mainly distributed in the northwest of the watershed as an obvious fertile island shape, while the low value areas were mainly distributed in the south of the watershed . Nitrogen was mainly concentrated in the surface soil, and its content decreased with the increase of soil depth. The soil nitrogen content at first increased then decreased with the altitude, decreased with the slope, and showed the order of shady slope > semi-shady slope > semi -sunny slope > sunny slope in different aspects. The average soil nitrogen contents in different land use types ranked as cropland >woodland > grassland.
- Subjects
GEOLOGICAL statistics; NITROGEN in soils; WATERSHEDS; SOIL depth; SLOPES (Physical geography); GRASSLANDS
- Publication
Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao, 2015, Vol 26, Issue 5, p1306
- ISSN
1001-9332
- Publication type
Article