水土保持研究2024，Vol.31Issue(5)：102-111,10.DOI:10.13869/j.cnki.rswc.2024.05.021
鲁中南地区不同经济林种植模式的改良土壤效应
Soil Improvement Effect of Different Economic Forest Planting Modes in South-central Shandong Province
摘要
Abstract
[Objective]The aims of this study are to explore the effects of different economic forest planting modes on soil water physical properties and soil nutrients in central and southern Shandong,and to provide a basis for screening and planting management of soil and water conservation economic forest planting modes in this area.[Methods]Four kinds of economic forest planting modes in Menglianggu small watershed of Mengyin County,Linyi City,were selected as the research objects,including A.persica(TS),C.pinnatifida(SZ),M.pumila+P.pseudocerasus(PY),and C.mollissima+Z.bungeanum(BH),with wasteland(CK)as the control.The water physical indexes such as soil bulk density,porosity and water storage capacity,and the nutrient indexes such as soil organic carbon,total nitrogen,total phosphorus and available nutrients were measured and analyzed.The soil improvement effect was comprehensively evaluated by principal component analysis and fuzzy mathematics membership function method.[Results](1)Economic forest planting could improve soil porosity and water storage performance.Compared with CK,the four economic forest planting patterns could reduce soil bulk density by 7.3％～22.1％,increase capillary porosity by 14.2％～42.0％,and increase soil maximum water storage by 16.5％～43.8％.The soil water holding capacity decreased in the order:TS＞PY＞BH＞SZ＞CK.In addition to PY,other economic forest planting patterns could effectively increase soil storage and storage precipitation,showing BH＞TS＞SZ＞CK.The effect of economic forest planting on the storage precipitation and effective storage capacity of 0-20 cm soil layer was more obvious.Compared with 0-20 cm soil layer,the porosity and maximum water storage capacity of 20-40 cm soil layer decreased,and the change range of TS was the smallest.(2)Economic forest planting could improve soil organic carbon and available nutrients.Compared with CK,the four economic forest planting patterns could increase soil organic carbon by 6.9％～270.4％,which was expressed as TS＞PY＞BH＞SZ＞CK;the contents of total nitrogen and total phosphorus in soil decreased in the oder:TS＞P Y＞BH＞SZ＞CK.The effect of economic forest planting on the nutrient content of 0-20 cm soil layer was more obvious.Compared with 0-20 cm soil layer,the nutrient content of 20-40 cm soil layer decreased.(3)The indicators reflecting the soil improvement effect of economic forest planting modes could be summarized into three categories.The first was soil capillary water holding characteristics and nutrient characteristics,the second was soil water storage characteristics,and the third was soil non-capillary water holding characteristics.[Conclusion]The comprehensive evaluation of soil improvement effect of different economic forest planting modes is:A.persica＞C.mollissima+Z.bungeanum＞M.pumila+P.pseudocerasus＞C.pinnatifida＞wasteland.Compared with grassland,economic forest planting can significantly improve the physical properties of soil moisture and improve soil nutrient performance,but the soil improvement effect varies greatly with different planting modes.In the arid and barren mountainous areas of central and southern Shandong,the planting mode of A.persica has the best effect on soil improvement,followed by C.mollissima+Z.bungeanum,and C.pinnatifida is relatively poor.关键词
土壤水分物理/土壤有机碳/土壤养分/经济林/土壤改良Key words
soil moisture physics/soil organic carbon/soil nutrients/economic forest/soil improvement分类
农业科技引用本文复制引用
张兹箕,王启鑫,赵振宇,芦月,刘文静,高芳磊,夏江宝..鲁中南地区不同经济林种植模式的改良土壤效应[J].水土保持研究,2024,31(5):102-111,10.基金项目
中央引导地方科技发展资金项目(YDZX2022101) （YDZX2022101）
山东省科技型中小企业创新能力提升工程项目(2023TSG0044) （2023TSG0044）
泰山学者人才工程项目(TSQN201909152) （TSQN201909152）
