[1]ZHANG Haitao,LIANG Jiye,ZHOU Zhengli,et al.Relationship Between Distribution Characteristics of Soil Physicochemical Properties and Vegetation in Desert Riparian Forest in the Middle Reaches of the Tarim River[J].Research of Soil and Water Conservation,2016,23(02):6-12.
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Relationship Between Distribution Characteristics of Soil Physicochemical Properties and Vegetation in Desert Riparian Forest in the Middle Reaches of the Tarim River
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 02
Page number:
6-12
Column:
Public date:
2016-04-28
- Title:
- Relationship Between Distribution Characteristics of Soil Physicochemical Properties and Vegetation in Desert Riparian Forest in the Middle Reaches of the Tarim River
- Keywords:
- desert riparian forest; soil physicochemical properties; the growth condition of vegetation; correlation analysis; middle reaches of Tarim River
- CLC:
- Q948.113
- DOI:
- -
- Abstract:
- In order to understand the spatial variability of soil physical and chemical properties and the relationship between soil physicochemical properties and plant quantitative, species diversity. We used the methods of correlation and regression analysis to examine the relationship between soil physicochemical properties and plant quantitative, species diversity. The results showed that: (1) the physical and chemical properties of soil had significant variations in different habitats, soil water content and bulk density in riparian area were higher than transition and desert area, the levels of water-holding capacity, porosity, total salt, pH were become higher as the distance increased from the river bank, and the maximum levels of organic matter, total phosphorus, total potassium were observed in transition place where the water and sunshine had the good combination, the physical and chemical properties had different patterns in the layers of soil in interior habitat; (2) the frequency, coverage, densiteis of tree, shrub, herbal had degradated to various extents, and the species diversity indexes presented the decrease trend; (3) with the analysis of these two factors, the quantitative characteristics indicators of plant and the species in this area had a certain correlation with soil physical and chemical proterties, total salt, bulk density, water content, pH, total nitrogen, total phosphorus were most close to quantitative characteristics and species diversity index; (4) through regression analysis, it showed that the soil water content was the first factor affecting plant growth in this region, the soil nutrient was the main factor, at the same time, organic matter, total phosphorus and total potassium were negatively correlated with plant growth condition. These results suggested that soil physicochemical property changes not only led to the plant change, but also affected plant succession processes, meanwhile, the plants had the significant function for improvement of soil physicochemical properties. Studying the relationship between soil physicochemical properties and vegetation, will provide the theoretical references for the environment recovery and controling the processs of land desertification in the middle reaches of Tarim River.
- References:
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1900-01-01