克拉玛依中心城区防护绿地土壤垂直水分动态变化特征.pdfVIP

0fAnhui 责任编辑庆珞责任校对卢瑶 安徽农业科学。Journal Xsri．Sei．2008。36(13)：5544—5545 克拉玛依中心城区防护绿地土壤垂直水分动态变化特征 疆乌鲁木齐830011；3．克拉玛依区园林局园林科研所，新疆克拉玛依834000) 摘要对克拉玛依城市外围防护绿地灌溉后的土壤水分动态变化特征进行观测。结果表明：不同树种结构的防护林对土壤含水率没有 显著的影响，10d后土壤含水率都趋于一致；6月在灌水后土壤水分比9月下降要快，且平均土壤含水率比9月要低，但到第10天，6、9月 测得的土壤含水率基本相同。垂直梯度变化表现为研究区东西两侧土壤水分的剖面特征较相似，大体表现为先增加后减小的波动型。 关键词防护绿地；土壤水分；动态变化；垂直梯度 中图分类号S152．7文献标识码A 文章编号0517—6611(21308)13—05544—02 SoilVerticalWaterContent蛔then试础他G珊饥姗of D：脚鼬a翰I酾Chmaae赫of KmH瑚Ifyom叫aty et 、)l粼Yi-jie University，Unmqi，Xinjiang830052) al(砌咄岍cIlltural were after AbstractThe characteristicsofsoilwatercontentinthe ohserved greenlandof＆Rmary irrigation．The dynamiccIlarlge protectiveperiphery andsoil alltendedtobe resultsindicatethat forestswithdifferenttree structurehadnoobviouseffectonsoilwatercontent watercontent pmteetion species lower uniformafter10d．皿ledecreaseofsoilwatercontentafter inJune惴fasterthanthatin andits soilwatercmtentwas irrigation Septemberaverage in Oil watercontentdeterminedin and were vertical thanthat thelOth June September gradientc}唧were September．Butday，soil basically㈣．The for contentinbothsidesof afluctuationoffnst andthende— moresimilar characteristicsofsoilwater stuay 8howms type increasing profde a陀a．generally cI％iI唱