Spatial Distribution Characteristics of Soil Physical and Chemical Properties in Milu National Nature Reserve of Coastal Wetland
LU Xia
LIN Yali
WU Yanan
GU Yang
ZHAO Qian
ZHANG Xu
Abstract：The third core area of Dafeng Milu national nature reserve in Jiangsu province was taken as the target area investigated.Top soil samples were collected by regular grid method and primary physical and chemical parameters such as pH, soil salt content (SSC) , soil organic matter (SOM) , total nitrogen (TN) , nitrate nitrogen (NN) , total carbon (TC) , available phosphorus (AP) , and available potassium (AK) were tested.Their spatial distribution maps were performed by using Kriging interpolation method.The results indicated that the average contents of eight soil parameters were 8.393, 6.646 g/kg, 13.203 g/kg, 0.748 g/kg, 6.279 mg/kg, 13.955 g/kg, 10.862 mg/kg and 486.36 mg/kg respectively.The spatial variability of soil pH was weak, while the others were moderate.The contents of soil salt, total carbon, soil organic matter, available phosphorus and available potassium decreased gradually form near sea to off-shore.Soil pH were significantly negative correlated with other seven soil parameters, while soil total carbon and soil salt contents were significantly positive correlated (p＜0.01) with soil organic matter, total nitrogen, available phosphorus and nitrate nitrogen, respectively.The spatial distributions of soil salt content were consistent with the succession law of the overlying vegetation community.
Keywords：coastal wetlandphysical and chemical propertiesgeo-statisticsspatial distribution
Publication Date：2018-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 74-81 )