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[1]CHEN Lin,ZHAO Zhi-feng,ZHAO Ting-ning,et al.Evaluation of Soil Physical and Chemical Properties Quality under Different Forest Based on Factor and Cluster Analysis[J].Research of Soil and Water Conservation,2011,18(05):191-196.

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Evaluation of Soil Physical and Chemical Properties Quality under Different Forest Based on Factor and Cluster Analysis

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 05 Page number: 191-196 Column: Public date: 2011-10-20

Title:: Evaluation of Soil Physical and Chemical Properties Quality under Different Forest Based on Factor and Cluster Analysis

Author(s):: CHEN Lin, ZHAO Zhi-feng, ZHAO Ting-ning, WANG Juan; Key Laboratory of Soil and Water Conservation and Desertification Combating of Ministry of Education, College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China

Keywords:: soil physical and chemical property; factor analysis; cluster analysis

CLC:: S714.2

DOI:: -

Abstract:: Based on the positioning experimental in semi-arid loess area, factor (FA) and clusters (CA) analysi were used to evaluate the effect of soil physical and chemical properties by selecting 10 similar conditions criteria, and 9 soil properties that reflect the quantitative indicators. By factor analysis, four soil common qualities (i.e., soil available nutrient supply factors, soil total nitrogen and pH factors, soil structure, water retention factor, soil bulk density factor) were derived from 9 soil indicators. The FA results show that there are significantly different among different forest types based on 4 common factors; different stands focus on different improvement on soil physical and chemical properties. The type of Larix gmelinii and Pinus tabuaeformis mixed gets low score, which may be deep-rooted trees have little effect on surface soil, the top three integrated patterns with the highest score include Robinia pseudoacacia (stand density 1200～1700 plant/hm²), followed by Robinia pseudoacacia CH₂ (1200 plant/hm²)>Robinia pseudoacacia CH₁(1700 plant/hm²)>Robinia pseudoacacia CH₅(1625 plant/hm²), Robinia pseudoacacia as the dominant species in the research area, which significantly improved soil physical and chemical properties, suitable Robinia pseudoacacia density is more prominent on improving soil physical and chemical properties.

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