WANG Xiao-ming,ZHOU Ben-zhi,ZHONG Shao-zhu,et al.The Eco-hydrological Effect of Young Broadleaved Plantation in Fuchun River Basin[J].Research of Soil and Water Conservation,2010,17(06):115-117,122.
富春江流域人工阔叶幼林涵养水源效果分析
- Title:
- The Eco-hydrological Effect of Young Broadleaved Plantation in Fuchun River Basin
- 分类号:
- S715
- 摘要:
- 选择富春江流域迹地更新的7年生水土保持试验林分，通过1a的定位监测，研究了阔叶幼林恢复重建的水文效应。研究结果表明:（1）与对照相比，人工阔叶幼林土壤总孔隙度、毛管持水量和饱和持水量分别提高了21.45%、22.50%和31.14%；土壤容重明显降低，阔叶幼林对土壤入渗能力有明显改善。（2）阔叶幼林的水文生态效应比较明显。监测期间，地表径流总量为1.87mm，平均径流系数0.16%，略高于天然次生林同期地表径流总量1.47mm和平均地表径流系数0.10%。在中小降雨强度下，阔叶幼林平均地表径流系数和天然次生林较接近；但在暴雨和大暴雨条件下，阔叶幼林的平均地表径流系数显著高于天然次生林。观测期内阔叶幼林泥沙总量为173.74kg/hm2，是天然次生林泥沙总量（31.99kg/hm2）的5.43倍。
- Abstract:
- The eco-hydrological effect of the young broadleaved plantation was studied and evaluated. Compared to control, the soil total porosity, capillary water holding capacity and saturated water holding capacity in young broadleaved plantation increased by 21.45%, 22.50% and 31.14%; its soil bulk density and soil infiltration capacity were also improved significantly. The effect of the young broadleaved plantation on eco-hydrology is significant. During the observation period, the total amount of surface runoff was 1.87 mm and the average runoff coefficient was 0.16% which were slightly higher than that in natural secondary forest (1.47 mm and 0.10%). During the low-medium rainfall intensity, the average runoff coefficient of young broadleaved plantation was similar as that of natural secondary forest, whereas the average runoff coefficient was significantly higher than that of natural secondary forest under rainstorm conditions. The runoff sediment in young broadleaved plantation was 173.74 kg/hm2, which was 5.43 times as much as that (31.99 kg/hm2) in natural secondary forest.
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备注/Memo
收稿日期:2010-3-30
基金项目:国家“十一五”科技支撑重大项目专题（2006BAD03A1806）；中国林业科学研究院中央级公益性科研院所基本科研业务费专项资金（CAFYBB2008006）；中国林科院亚热带林业研究所中央级公益性科研院所基本业务费专项基金重点项目（RISF060701）
作者简介:王小明（1978- ），男，福建尤溪人，博士，主要从事森林生态与森林水文的研究。E-mail：rsfyrs@126.com
通讯作者:周本智（1969- ），男，安徽安庆人，博士，副研究员，主要从事森林生态学研究。E-mail：benzhi_zhou@126.com