甘肃山地条件下半夏生长土壤水分变化特性研究  

Characterization of Soil Moisture Changes in the Growth of Pinellia Ternata under Mountainous Conditions in Gansu Province

作　　者：庞启 成妍妍 宫峥嵘 张丹丹 PANG Qi;CHENG Yanyan;GONG Zhengrong;ZHANG Dandan(School of Mechanical Engineering,Longnan Normal University Longnan Characteristic Agricultural Biological Resources Research and Development Center,Longnan 742500,China)

机构地区：[1]陇南师范学院机电工程学院/陇南特色农业生物资源研究开发中心,甘肃陇南7425000

出　　处：《信阳农林学院学报》2025年第1期82-88,共7页Journal of Xinyang Agriculture and Forestry University

基　　金：陇南市2022年科技计划项目(2022-S·JH-15)。

摘　　要：为进一步明确半夏生长各阶段土壤含水量变化特性,以甘肃西和山地半夏为研究对象,采用远程监测法,对6月中旬-9月中旬半夏生长土壤含水量进行连续监测,对影响土壤含水量变化的主要因素和各阶段土壤含水量变化情况进行分析。结果表明,珠芽生长期,晴天半夏生长土壤含水量日减少量平均值(2.7%)高于阴天半夏生长土壤含水量日减少量平均值(0.8%);二次返苗期,晴天半夏生长土壤含水量日减少量平均值(2.4%)高于阴天半夏生长土壤含水量日减少量平均值(0.5%);块茎膨大期前期,晴天半夏生长土壤含水量日减少量平均值(1.6%)高于阴天半夏生长土壤含水量日减少量平均值(0.5%),块茎膨大期后期至采挖前,半夏生长土壤含水量日变化量极小,能够在较长时间内保持稳定。珠芽生长期、二次返苗期晴天光照强度大,土壤温度高,半夏生长土壤含水量日减少量明显,阴天光照强度小,土壤温度较低,半夏生长土壤含水量日减少量不明显,该时段光照强度和土壤温度是影响土壤含水量变化的主要因素。块茎膨大期,土壤含水量日减少量整体低于珠芽生长期和二次返苗期,该时段光照强度和土壤温度对土壤含水量变化的影响逐渐减弱。本研究揭示了甘肃山地条件下半夏生长土壤含水量在不同气候、不同生长阶段情况下的基本变化特性,可为甘肃山地半夏种植和管理提供科学依据。In order to further clarify the characteristics of soil water content change at each stage of hemlock growth,the main factors affecting the soil water content change and the soil water content change at each stage were analyzed by using remote monitoring method for continuous monitoring of soil water content of hemlock growth from mid-June to mid-September in the mountainous area of Xiho,Gansu,with hemlock growth of hemlock as the research object.The results showed that,during the growth period of pearl buds,the average value of daily decrease in soil water content of half-summer growth on sunny days(2.7%)was higher than that on cloudy days(0.8%);during the second seedling return period,the average value of daily decrease in soil water content of half-summer growth on sunny days(2.4%)was higher than that on cloudy days(0.5%);during the first period of tuber expansion period,the average value of daily decrease in soil water content of half-summer growth on sunny days(2.4%)was higher than that on cloudy days(0.5%);and during the first period of tuber expansion period,the average value of daily decrease in soil water content of half-summer growth on sunny days In the early stage of tuber expansion,the average value of daily decrease in soil water content of half-summer growth(1.6%)was higher than the average value of daily decrease in soil water content of half-summer growth on cloudy days(0.5%),and the amount of daily change in soil water content of half-summer growth in the late stage of tuber expansion to the time of digging was extremely small,and it could be stabilized for a longer period of time.Pearl bud growth period,the second return to the seedling period of sunny days with high light intensity,high soil temperature,half-summer growth soil water content daily reduction is obvious,cloudy days with low light intensity,lower soil temperature,half-summer growth soil water content daily reduction is not obvious,the light intensity and soil temperature is the main factors affecting the change of soil water conte

关 键 词：山地 半夏 土壤含水量 变化特性 

分 类 号：S152.7[农业科学—土壤学]