长江流域资源与环境 >> 2011, Vol. 20 >> Issue (10): 1217-.

• 自然资源 • 上一篇    下一篇

城乡交错带土地利用方式对土壤理化性质的影响

方 晰 |洪 瑜 |金文芬 |陈仕栋   

  1. (1. 中南林业科技大学生态研究室|湖南 |长沙 |410004;2. 宁夏农林科学院农业资源与环境研究所|宁夏 |银川 |750002)
  • 出版日期:2011-10-20

INFLUENCE OF LANDUSE TYPES ON SOIL PHYSICAL AND CHEMICAL PROPERTIES IN SUBURBAN AREA 

FANG Xi1, HONG Yu2, JIN Wenfen1, CHEN Shideng1   

  1. (1. Research Section of Ecology, Central South University of Forestry and Technology, Changsha 410004, China; |2. Resource and Environment Institute of Ningxia Academy of Agriculture and Forestry Science, Yinchuan 750002, China)
  • Online:2011-10-20

摘要:

以长沙市南郊山地丘陵区为研究对象,选择7种不同土地利用方式(次生林地、经济林地、杉木人工林、采伐迹地、撂荒地、苗圃地、坡耕地)研究了城乡交错带不同土地利用方式对土壤理化性质的影响。结果表明:7种土地利用方式下,土壤颗粒组成主要集中在1~0.05 mm和<0.001 mm两个粒级范围内,土壤质地以重壤土和轻粘土为主。随着人为干扰程度的减弱,土壤砂粒(1.0~0.05 mm)、土壤粉粒(0.05~0.01 mm)百分率逐渐下降,<0.01 mm的土壤物理性粘粒百分率增加。自然、半自然状态利用方式的林地(次生林地、经济林地、杉木人工林地)土壤总孔隙度、含水量普遍较高,土壤密度低于坡耕地、苗圃地、撂荒地、采伐迹地,而土壤pH值、有机质含量及氮、磷、钾含量普遍高于坡耕地、苗圃地、撂荒地、采伐迹地

Abstract:

In order to investigate the effects of land utilization types on soil physical and chemical properties in suburban area, seven kinds of different land utilization types (secondary forestland, economic forestland, artificial forestlands, deforestedland, abandoned farmland, nursery garden, slope farm land) in suburban area of Changsha City were chosen for studying. The results showed that the soil particle mainly concentrated in (1.00~0.05 mm and <0.001 mm) two granulation scales, soil texture was light clay and heave loam. The content of soil sand (1.00~0.05 mm) and soil silt (0.05~0.01 mm) decreased, while that of soil clay (<0.01 mm) increased with the decreased of human disturbance. Soil density in slope farm land, nursery garden, abandoned farmland and deforestedland was higher than that in woodland, such as secondary forestland, economic forestland, artificial forestlands, however soil porosity and soil water content in the woodlands were universally higher. Soil pH value, organic matter content and nutrient content were higher generally in the natural or seminatural woodland (secondary forestland, economic forestland, artificial forestlands) than that in slope farm land, nursery garden, abandoned farmland and deforestedland

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