摘要
通过对坡耕地竹园、茶园、柑橘、板栗和板栗退耕等5种不同治理模式的土壤水分物理性质的特征进行定位研究,研究表明：（1）枝叶繁茂的竹林的土壤容重小于茶园、板栗林间作、板栗退耕和柑橘林等林地相应土层的容重.并且各区土壤容重也都呈现出随土层深度的增加,土壤容重增大的趋势.（2）各试验模式土壤孔隙度和土壤非毛管孔隙度均表现出随土壤深度的增加而逐渐降低的趋势,但板栗间作模式的土壤孔隙度则表现为随土壤深度的增加而增加的变化动态.（3）土壤的含水量的变化与月降雨量的分配情况有明显的正相关关系,降雨量大的月份其土壤含水量就高,降雨量少的月份其土壤含水量就相对较低.（4）同一种林型0～60 cm土层范围内土壤含水量随土壤深度的增加而增加,竹园的土壤含水量明显高于其它类型林地的土壤含水量.
Soil-water physical properties under different harness modes, including bamboo stand, tea garden, orange garden, chestnut intercropping stand and chestnut stand restored from cultivation, were studied in this paper. The results indicated that： （1） The soil bulk density of bamboo stand was the smallest one of the same layer of soil among all harness modes. And the soil bulk density enhanced with the increase of soil depth. （2） Soil porosity and soil non-capillary porosity tended to decrease with the increasing of soil depth, but on the contrary, in chestnut intercropping mode they tended to increase with the increasing of soil depth. （3） There were positive correlation between soil water content and monthly precipitation. （4） In the same stand, the soil water content rose gradually from surface to sixty centimeter depth. It was higher in bamboo stand than that of under other harness modes.
出处
《竹子研究汇刊》
2006年第2期15-19,共5页
Journal of Bamboo Research
基金
科技部科研院所社会公益研究专项资金项目<三峡库区林业生态综合治理技术研究与示范>(2000DIA50024)
国家科技攻关计划重大专项专题<中国森林生态网络体系建设秭归试验点的研究>(2002BA516A17-10)项目研究内容
