摘要
主要以和田绿洲防护林建设为背景,根据防护林不同结构配置类型,在研究区内选取11块样地进行调查取样,采用常规分析法测定土壤养分、土壤盐分(包括pH值、电导率、全盐以及土壤水溶性盐总量)。发现在防护林不同种植模式下土壤相对含水率差异较大,多层次防护林的种植可改良土壤盐分,减少可溶性盐分在土壤中的积聚,不同结构防护林土壤养分的空间变化明显,发现多层次防护林种植模式下对土壤养分的集聚与土壤肥力的提高有明显的正效应,增加了防护林内的生物种类。结合分析结果对防护林种植模式提出建议。
With Hetian Oasis shelter-forest construction as the background, sampling investigation was conducted in 11 plots according to different structures of shelter-forest configuration types. Conventional analysis was used to determine soil nutrients and soil salinity, including the pH value, conductivity, total soil water-soluble sahs. The results show that soil relative water content of shelter-forest with different planting model is different. Multi-level planting shelterbelts can change soit salinity, reducing soluble salt accumulation in soil. The spatial variation of soil nutrients of shelter-forest in different structure is obvious. Different planting patterns have a significant positive effect on the accumulation of soil nu- trients and improve soil fertility, increasing the species within shelter-forest. In conclusion, suggestions are pointed out on planting patterns.
出处
《干旱地区农业研究》
CSCD
北大核心
2012年第1期190-196,共7页
Agricultural Research in the Arid Areas
基金
中国气象局干旱气象研究基金(IAM201001)
国家科技支撑计划(2006BAD26B0902)
国家973计划(2006CB705809)
中科院知识创新重大项目(KSCX-YW-09)
关键词
防护林
种植模式
水盐关系
土壤
shelter-forest
planting model
relationship between water and salt
soil
