宁夏干旱风沙区人工柠条灌木林种群生物量动态分析  

Analysis of Population Biomass Dynamics of Artificial Caragana Microphylla Shrub Forest in Arid Sandy Area in Ningxia

作　　者：何建龙[1,2] 蒋齐[1,2] 王占军[1,2] 

机构地区：[1]宁夏农林科学院荒漠化治理研究所,宁夏银川750002 [2]宁夏防沙治沙与水土保持重点实验室,宁夏银川750002

出　　处：《宁夏农林科技》2014年第12期14-16,共3页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：宁夏农林科学院自主研发课题"宁夏干旱风沙区人工林固碳特征及固碳潜力研究";宁夏自然基金(NZ14205)

摘　　要：以宁夏干旱风沙区盐池县不同密度人工柠条灌木林为研究对象,对不同密度人工柠条林的灌木生长特征及土壤水分的影响进行了研究。结果表明:造林密度过大严重影响了植物的生长,植株表现为矮小、老化,生物量、株高、冠幅等相对较小,而低密度的灌木林表现为生物量较大、冠幅和株高相对较高,植物属于旺盛生长状态;不同造林密度的柠条单株生物量随着造林密度的降低灌木生物量呈增加趋势;人工柠条林带内土壤含水量随着造林密度的增大,土壤含水量呈逐步旱化的趋势。The growth characteristics of different density artificial Caragana korshinskii shrub and the effects they were affecting by the soil moisture were studied with different density artificial Caragana microphylla shrub forest in Yanchi County in the arid sandy area of Ningxia as the research objects. The results showed that the planting density had a serious influence on the plant growth, the plant was short and aging, the biomass, plant height and crown width were relatively small, while the low density shrub forest showed a greater biomass, the crown width and the height were relatively high, and the plants were in the status of vigorous growth. The biomass per plant under different planting densities showed a rising trend with the planting density reduced. The soil water content in the artificial caragana forest showed a gradual drought trend with the increase of planting density.

关 键 词：干旱风沙区 人工柠条林 生物量动态 

分 类 号：S793.3[农业科学—林木遗传育种]