黄土丘陵区柠条林改良土壤作用的研究

doi:10.11707/j.1001-7488.20060112

Scientia Silvae Sinicae ›› 2006, Vol. 42 ›› Issue (1): 70-74.doi: 10.11707/j.1001-7488.20060112

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Study on the Ameliorate Benefits of Caragana korshinskii Shrubwood to Soil Properties in Loess Hilly Area

An Shaoshan¹,Huang Yimei²

1.Institute of Soil and Water Conservation, Northwest A & F University, CAS & Ministry of Water Resourses Yangling 712100; 2.College of Resources and Environment,Northwest A & F University Yangling 712100

Received:2004-10-28 Revised:1900-01-01 Online:2006-01-25 Published:2006-01-25

Abstract

Abstract:

Based on the field investigation and indoor analysis, soil nutrients, soil structure and proporties and soil enzyme activities were studied with 18-year-old and 8-year-old Caragana korshinskii. The results showed that the shrub(C. korshinskii) would improve the content of soil organic matter, rapidly available nitrogen, rapidly available potassium, decrease soil pH and soil density. It would also increase the contents of soil water-stable aggregates(>5 mm) and microaggregates(>0.01 mm), improve the soil nutrient conditions and change the soil structure, improve the soil ability to service nutrients and water. It would also accelerate the clay soil to form the accumulation, prevent soil degeradation and protect eco-environment.

Key words: Caragana korshinskii, soil structure, soil enzyme activity, Loess hilly area

An Shaoshan;Huang Yimei. Study on the Ameliorate Benefits of Caragana korshinskii Shrubwood to Soil Properties in Loess Hilly Area[J]. Scientia Silvae Sinicae, 2006, 42(1): 70-74.

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Study on the Ameliorate Benefits of Caragana korshinskii Shrubwood to Soil Properties in Loess Hilly Area

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