水科学进展2012，Vol.23Issue(5)：628-634,7.
滨海湿地不同密度柽柳林土壤调蓄水功能
Capacity of soil water storage and regulation under different density forests of Tamarix chinensis Lour in coastal wetland
摘要
Abstract
The objective is to explore the suitable forest density of Tamarix chinensis Lour on the capacity of soil water storage and regulation of wetlands in Yellow River Delta. The characteristics of soil water physical properties, soil infiltration, soil water storage and regulation of Tamarix chinensis under different density forests are analyzed. Soil infiltration course and hydrological properties are determined in field and laboratory. The results show that; CD The a-mount of fine sand increased with the density forests of Tamarix chinensis increasing, while the amount of silt and clay decreased. The effect of controlling soil salinity and alkaline content of middle density forest is better than that of high and low density forests, and the soil salinity and alkaline content of 0 - 20 cm is lower than that of 20 - 40 cm; (2) Soil density decreased and then increased with the density forests of Tamarix chinensis increasing, while the soil porosity show a contrary tendency. Compared to the total porosity of low density forest, the increment of that in the middle, high density forest and grassland is 12. 9% , 6. 2% and 4. 4% , respectively, and these indexes of 0 -20 cm are better than that of 20 -40 cm; (3) Soil infiltration course of forest field fitted Horton infiltration model well. Characteristics of soil infiltration show this order: Middle density forest > high density forest > low density forest > grassland; (4) Characteristics of soil saturated water content, soil capillary, non-capillary porosity water-holding capacity and total absorption precipitation show this order; Middle density forest > high density forest > grassland > low density forest, and the capacity of soil water storage and regulation in 0 ?0 cm is better than that of 20 ?0 cm. Compared to the capacity of total absorption precipitation in low density forest, the increment of that in the middle, high density and grassland is 28. 4% , 23. 8% and 14. 1% , respectively. The largest capacity of soil water storage and regulation is the middle density forest, followed by high density forest, and low density forest is poor.关键词
湿地/柽柳/土壤入渗/蓄水功能/水分调节/黄河三角洲Key words
wetland/ Tamarix chinensis Lour/ soil infiltration/ water storage/ water regulation/ Yellow River delta分类
天文与地球科学引用本文复制引用
夏江宝,孔雪华,陆兆华,刘京涛,韩瑞东,朱金方..滨海湿地不同密度柽柳林土壤调蓄水功能[J].水科学进展,2012,23(5):628-634,7.基金项目
"十一五"国家科技支撑计划资助项目(2010BAC68B01) （2010BAC68B01）
山东省黄河三角洲生态环境重点实验室开放基金资助项目(2010KFJJ03) （2010KFJJ03）
