草原与草坪2025，Vol.45Issue(4)：65-74,10.DOI:10.13817/j.cnki.cyycp.2025.04.008
陇中黄土高原不同草地类型植被特征与土壤理化性质
Vegetation characteristics and soil physicochemical properties of different grassland types in the Loess Plateau of central Gansu
摘要
Abstract
[Objective]An exploration of the vegetation growth status and soil physicochemical characteristics of various grassland types on the typical Loess Plateau in China,along with the relationship between them.[Method]Six grassland types(alpine meadow,alpine steppe,mountain meadow,temperate desert,temperate desert steppe,and temperate steppe)were selected on the Loess Plateau in Longzhong to study the relationship between vegetation characteristics and the physicochemical properties and mutual feedback relationship of soils in different soil horizons(0～10,10～20,and 20～30 cm).[Result]Significant differences in vegetation characteristics and soil physicochemi-cal properties among different grassland types on the Loess Plateau in Longzhong(P＜0.05).Among the six grass-land types,alpine meadows had the highest soil water content(SWC),soil organic carbon(SOC),total carbon(TC),total nitrogen(TN),total phosphorus(TP),and total potassium(TK),but the lowest bulk content(BD).The contents of SWC,SOC,TC,TN,and TP showed a gradual decrease with the increase of soil layer,but BD showed an increasing change characteristic.The physicochemical properties of the soil in the 0～30 cm soil layer showed that the soil organic carbon,total nitrogen,and total phosphorus contents were low,but the total potassium content was high.Soil organic carbon,total nitrogen,and total phosphorus contents were significantly and positively correlated with vegetation characteristics(vegetation cover,aboveground biomass,and litter biomass).[Conclusion]In the Loess Plateau region of Longzhong,alpine meadow grassland vegetation grows better,and the soil physico-chemical properties are better than those of other grassland types.关键词
陇中/草地类型/土壤理化性质/植被特征Key words
Longzhong/grassland types/soil physicochemical properties/vegetation characteristics分类
农业科技引用本文复制引用
李娅丽,马成龙,何国兴,徐贺光,柳小妮,张德罡,纪童,杨卓丽,漆昊,汪云君..陇中黄土高原不同草地类型植被特征与土壤理化性质[J].草原与草坪,2025,45(4):65-74,10.基金项目
甘肃省草原监测评价(GSZYTC-ZCJC-21010) （GSZYTC-ZCJC-21010）
2021年自列省级林业和草原科技项目(2021kj071) （2021kj071）
甘肃省新一轮草原补奖效益评估及草原生态评价研究(XZ20191225) （XZ20191225）
