不同经营措施对水湿地江南桤木林土壤肥力影响的研究

Study on effects of different management measures on soil fertility in waterlloged Jiangnan alder forestry

研究高垄低沟、切根浅栽、集成处置对水湿地的江南桤木林土壤肥力的影响,结果表明:集成处置处理对土壤肥力影响最为显著,微团聚度、>0.25mm水稳性团聚体含量、总孔隙度、非毛管孔隙度、土壤速效养分含量最高,分散系数、土壤容重、土壤结构体破坏率最低,林分立木材积最高,综合表现最优。

Effect of high ridge and low gully,shallow root planting,integrated disposal on soil fertility in waterlloged Jiangnan alder forestry were studied.The results showed that integrated treatment had the most significant effect on soil fertility,and had the highest amount of agglomeration degree,0.25 mm water stable aggregate content,total porosity,non-capillary porosity,and soil available nutrient content.Also it had the lowest amount of dispersion coefficient,soil bulk density and soil structure damage rate,and had the highest stand volume and the optimal comprehensive performance.