摘要
以不同密度巨尾桉人工林的林分结构各层次持水能力及其林地土壤持水能力和渗透性能为分析基础 ,来评价各林分水源涵养能力 ,结果表明 :不同密度的巨尾桉人工林其水源涵养能力存在显著差异 ,其中以密度为 1 32 5株 /hm2 的人工林为最佳 ,林分总持水量最大 ,为 1 70 .1 1t/hm2 ,林冠持水量和林地持水量也最大 ,分别为 1 4 .37t/hm2 和 1 5 5 .74t/hm2 。
This paper evaluates water conservation capacity of different stands of hybrid of E. grandis×E. urophylla plantation with different density, based on analysis of water-holding capacity of stand components and forest soil, and percolation capacity of soil. The results showed that obvious difference existed in the forests of different density, e.g. the stand of 1350 per hectare had the best forest function, and its total water-holding quantity 170.11 t/hm 2, canopy water-holding quantity 14.37t/hm 2, forests soil water-holding quantity 155.74t/hm 2, were all the highest.
出处
《江西农业大学学报》
CAS
CSCD
2000年第2期220-224,共5页
Acta Agriculturae Universitatis Jiangxiensis
基金
福建省自然科学基金! (C95 0 2 8)资助项目
关键词
巨尾桉
水源涵养
密度效应
持水量
渗透性
hybrid of Eucalyptus grandis ×Eucalyptus urophylla
water conservation
density effects
