水土保持通报2016，Vol.36Issue(5)：91-95,5.DOI:10.13961/j.cnki.stbctb.2016.05.023
不同龄组兴安落叶松林枯落物的水文效应
Hydrological Effects of Litters in Xing’an Larch Forest at Different Stand Ages
摘要
Abstract
Objective] In order to provide theoretical basis for forest hydrological effect study ,the experiment was conducted to investigate the growing stock and water retention capability of forest litter at different stand ages group in Daxing’an Mountains .[Methods] We chose Xing’an forest larch with different stand ages as the object ,and set the standard sample .The method of water immersion was used to measure the water re‐tention capability of litter .We then calculated the effective retaining content and the maximum water‐holding capacity .[Results] The litter volume of four different stand age groups was from 28 .03 to 34 .32 t/hm2 ,and the maximum water‐holding capacity was from 87 .09 to 87 .09 t/hm2 .The maximum water‐holding capacity increased with the increase of litter volume ,and the maximum water‐holding capacity in the half‐decomposed layer was greater than that in the undecomposed layer .By statistical analysis ,there was a logarithmic rela‐tionship between water capacity of undecomposed and half‐decomposed layer and immersion time ,and there was an exponential relationship between water absorption rate and immersion time .Overall ,the rainfall in‐terception capacity of half‐decomposed layer was better than that of undecomposed layer .[Conclusion] Sig‐nificant difference has been found in forest litter volume among Xing ’an larch with different ages excepting w hich of the mature forest and near‐mature forest ,the rainfall interception capacity of mature forest ,near‐mature forest and middle‐aged forest was greater than that of young forest .关键词
兴安落叶松林/枯落物/水文效应Key words
Xing’an larch forest/litters layer/hydrological effects分类
农业科技引用本文复制引用
石亮,舒洋,张波,王梓璇,葛鹏,赵鹏武,周梅..不同龄组兴安落叶松林枯落物的水文效应[J].水土保持通报,2016,36(5):91-95,5.基金项目
内蒙古科技计划项目“大兴安岭森林火灾后生态监测与评价技术研究” （）
