期刊论文

中文

水土保持学报

1009-2242

2013

27

1

267-272,276

10.13870/j.cnki.stbcxb.2013.01.047

国家林业局林业生态科技工程项目（2011BAD38B00） 中南林业科技大学***基金项目（104-0116）

本校为第一机构

为探明风水穴地及其周围地块土壤结构稳定性的变化规律及环境影响机制,通过野外采样、室内测试及数理统计等方法对长沙地区典型的传统风水穴地土壤稳定性进行研究。结果表明,风水穴地土壤结构稳定性高于周围地块,其中穴地土壤>2mm的水稳性团粒数量分别比山腰、山顶平均提高7.4%,23.2%,平均重量直径分别提高3.5%,13.8%;风水穴地土壤微生物生命活动较旺盛,其中穴地土壤微生物活度比山腰、山顶分别提高16.9%,32.5%;土壤水、气、热对微生物的和谐度穴地明显高于山腰、山顶,其中基于土壤温度、湿度、通气度对微生物活度直接通径系数的标准差系数在山腰、山顶土壤平均分别是在穴地的17.6,20.8倍。研究...

To ascertain the soil structure stability around Fengshui point and its mechanism affected by environmental factors, an investigation had been conducted on traditional Fengshui point in Changsha by field sampling, indoor test, and mathematical statistics. The results showed, the soil stability in Fengshui point was higher than that in surrounding land, among that the number of water stable aggregates above 2 mm in Fengshui point soil increased by 7.4% and 23.2% based on that in hillside and hilltop, respectively, and MWD increased by 3.5% and 13.8~ accordingly; the microbial life activity was ...