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Publication Type J
Authors Li, CJ; Shi, X; Lei, JQ; Xu, XW
Author Full Name Li, Congjuan; Shi, Xiang; Lei, Jiaqiang; Xu, Xinwen
Title The scale effect on the soil spatial heterogeneity of Haloxylon ammodendron (C. A. Mey.) in a sandy desert
Source ENVIRONMENTAL EARTH SCIENCES
Language English
Document Type Article
Author Keywords Spatial heterogeneity; Geostatistics; Fertile islands; Patchiness; Scale effect
Keywords Plus YELLOWSTONE-NATIONAL-PARK; PLANT-SPECIES RICHNESS; GURBANTUNGGUT DESERT; GRASSLAND ECOSYSTEM; SHORTGRASS STEPPE; ORGANIC-MATTER; VARIABILITY; NITROGEN; PATTERN; AFRICA
Abstract Haloxylon ammodendron Bge (C.A. Mey.) is a dominant shrub species in the Gurbantonggut Desert and plays an important role in preventing wind erosion and combating desertification, typically by developing fertile islands in desert ecosystems; however, such islands often depend on the scales. An experiment was conducted to determine the scale dependence for the soil spatial heterogeneity of H. ammodendron in the Gurbantonggut Desert using the soil pH, electrical conductivity (EC), soil organic carbon (SOC), and total nitrogen (TN). The results showed that the soil EC, SOC and TN were significantly higher at the individual scale than the population scale. Moreover, the coefficients of variation (CV %) of the soil parameters at the individual scale were greater than they were at the population scale, with all except for pH (CV = 4.35 % for individual scale and CV = 2.87 % for population scale) presenting a moderate degree of variability (10 % < CV < 100 %). A geostatistical analysis revealed a strong spatial dependence [C (0) /(C (0) + C) < 25 %] within the distance of ranges for the tested parameters at both scales. The kriging interpolation results presented significant accumulation of soil SOC and TN around the shrub center and formed a significant
Author Address [Li, Congjuan; Lei, Jiaqiang; Xu, Xinwen] Chinese Acad Sci, Natl Engn Technol Res Ctr Desert Oasis Ecol Const, Xinjiang Inst Ecol & Geog, Urumqi 830011, Xinjiang, Peoples R China; [Shi, Xiang] Shihezi Univ, Coll Agr, Coll Forestry, Shihezi 832011, Xinjiang, Peoples R China
Reprint Address Li, CJ (reprint author), Chinese Acad Sci, Natl Engn Technol Res Ctr Desert Oasis Ecol Const, Xinjiang Inst Ecol & Geog, 818 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China.
E-mail Address li_congjuan@163.com
Funding Agency and Grant Number 973 Program of China [2009CB825102]; National Natural Science Foundation of China [41030530, 31300449]; Western Light Project of the Chinese Academy of Sciences [XBBS201205]
Funding Text This study was supported by a grant from the 973 Program of China (2009CB825102), the National Natural Science Foundation of China (41030530; 31300449), and the Western Light Project of the Chinese Academy of Sciences (XBBS201205). The authors also thank the staff of the Fukang Station of Desert Ecology for their excellent field and laboratory assistance.
Cited Reference Count 47
Times Cited 3
Total Times Cited Count (WoS, BCI, and CSCD) 5
Publisher SPRINGER
Publisher City NEW YORK
Publisher Address 233 SPRING ST, NEW YORK, NY 10013 USA
ISSN 1866-6280
29-Character Source Abbreviation ENVIRON EARTH SCI
ISO Source Abbreviation Environ. Earth Sci.
Publication Date MAY
Year Published 2014
Volume 71
Issue 9
Beginning Page 4199
Ending Page 4207
Digital Object Identifier (DOI) 10.1007/s12665-013-2813-1
Page Count 9
Web of Science Category Environmental Sciences; Geosciences, Multidisciplinary; Water Resources
Subject Category Environmental Sciences & Ecology; Geology; Water Resources
Document Delivery Number AF0NE
Unique Article Identifier WOS:000334410500036
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