Soil properties in forest gaps and under canopy in broad-leaved Pinus koraiensis forests in Changbai Mountainous Region, China

2007 ◽  
Vol 2 (1) ◽  
pp. 60-65 ◽  
Author(s):  
Chunyu Zhang ◽  
Xiuhai Zhao
PLoS ONE ◽  
2015 ◽  
Vol 10 (10) ◽  
pp. e0141203 ◽  
Author(s):  
Zhongsheng He ◽  
Jinfu Liu ◽  
Songjin Su ◽  
Shiqun Zheng ◽  
Daowei Xu ◽  
...  
Keyword(s):  

2010 ◽  
Vol 84 (1) ◽  
pp. 33-45 ◽  
Author(s):  
Robert P. Griffiths ◽  
Andrew N. Gray ◽  
Thomas A. Spies

2012 ◽  
Vol 518-523 ◽  
pp. 4761-4765
Author(s):  
Wen Biao Duan ◽  
Yan Li ◽  
Li Xin Chen

Locations of sampling points in Pinus koraiensis-dominated broadleaved mixed forest gap in Xiao Xing’an Mountains of Northeast China were determined by grid method. Spatial variability in physical soil properties (PSPs) at those locations in 2 depths of 0–20 cm and 20–40 cm was analyzed by descriptive statistics and geostatistics. The results indicated that soil water content (SWC), saturated moisture capacity, capillary water-holding capacity and porosity were higher in 0–20 cm than in 20–40 cm except for bulk density. PSPs in 0–20 cm had relatively higher ranges and coefficients of variation. The total and autocorrelative spatial heterogeneity in PSPs were larger in 0–20 cm than in 20–40 cm. SWC had a strong anisotropic structure in an easterly and northerly direction, but porosity exhibited isotropy structure in the same directions. With increasing spatial distance, the three other PSPs presented anisotropic structures. Within spatial autocorrelative range, the interactive effect between semivariograms of PSPs in 0–20 cm was not significant. For spatial distribution of PSPs in 2 different depths, the patches with the middle and lower ranks dominated in the forest gap. Patches with higher rank were only distributed in 0–20 cm and were located north of the forest gap.


Author(s):  
Sandra Santana de Lima ◽  
Adriana Maria de Aquino ◽  
Rafaela Martins da Silva ◽  
Priscila Silva Matos ◽  
Marcos Gervasio Pereira

2010 ◽  
Vol 113-116 ◽  
pp. 1092-1096
Author(s):  
Ying Xin ◽  
Yu Sen Zhao ◽  
Fan Suo Zeng

In this paper, the Pinus koraiensis plantation at mountainous region in Heilongjiang Province is the research object. Four different types of water in Pinus koraiensis plantation including rainfall, throughfall, stemflow and runoff are respectively selected to study the influence of Pinus koraiensis plantation on the water quality from May to November of 2004. The indicator included pH, Do, TURB, TDS, COND, ORP, K, Na, Ca, Mg, Cu, Zn, Mn and Fe. The results show that the chemical properties of rainfall have been changed after it passing through forest canopy. The value of pH, Do and ORP in throughfall are lower than those of rainfall, the value of TURB and TDS increase obviously, 3.2 and 6.4 times higher than the rainfall. The concentrations of Na, Ca and Zn in the throughfall are lower than those in the rainfall but other metal elements show higher concentrations. The value of pH and Do in stemflow are lower than other water. The element contents in stemflow increase greatly except Cu. The values of pH, TURB, TDS and COND in the runoff are higher than those in stemflow, throughfall and rainfall. The variance of pH and Do don’t change significantly, and the variance coefficients of pH and Do are lower in rainfall, throughfall, stemflow and runoff. The value of TURB, TDS and COND vary remarkably, and the variance coefficients of which are higher. The leaching coefficient of throughfall is in the following order: K>Mg>Mn>Fe>Cu>Na>Zn>Ca. The leaching coefficient of stemflow is in the order of Fe>Mn>Mg>K>Na>Ca>Cu>Zn. After atmospheric precipitation passing through the Pinus koraiensis plantation, the value of pH in the throughfall, stemflow and runoff increase gradually closer to neutral, which shows that the Pinus koraiensis plantation have good buffer function to the acidification of the water.


2011 ◽  
Vol 356-360 ◽  
pp. 2758-2762
Author(s):  
Shu Li Wang ◽  
Ning Ning Fan

The effects of four management measures (A: All broad-leaved trees and shrubs were cut, B: All broad-leaved trees were cut, C: All shrubs were cut, D: Partial upper broad-leaved trees were cut uniform.) of Pinus koraiensis plantations on the soil properties were studied in National Natural Reserve located in Lesser Xingan Mountains. Litter mass, soil organic matter mass, soil physical properties, soil chemical properties and microbial characteristics were affected significantly by management activities in the Pinus koraiensis plantations no matter what kind of management measures. The rate of undecomposed layer was bigger than 50% in measure A and measure B, and smaller than 50% in measure C and measure D. The lowest surface soil bulk density was in measure C and D. Soil organic matter mass of measure C and D was bigger than that of measure A and B. In the upper soil layer, the nutrient of measure C and D was higher than that of measure A and B. The totoal number of bacterium, fungi and actinomycetes was the bigger in measure C and D, and the smaller in measure A and B. The rusults of the soil properties under different management measures seems to confirm that increasing the degree of close-to-nature forest management could be conductive to improve the soil quality of Pinus koraiensis plantation.


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