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时间:2020-06-19
《滨海盐碱地白蜡人工林的小气候效应.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第l2卷第3期中国水土保持科学V0l_l2NO.32014年6月ScienceofSoilandWaterConservationJun.2014滨海盐碱地白蜡人工林的小气候效应沈运扩,董智,王丽琴,张志鹏,邵水仙(山东农业大学林学院,山东省土壤侵蚀与生态修复重点实验室/泰山森林生态站,271018,山东泰安)摘要:以滨海盐碱地白蜡人工林为研究对象,以旷野裸地为对照,采用定位观测的方法,研究白蜡人工林的动力、热力和水文等小气候效应,以期为滨海盐碱地人工造林的生态影响评价提供参考。结果表明:林内太阳辐射、风速、土壤温度、土壤湿度明显低于旷野;空
2、气相对湿度林内显著高于旷野;而林内空气温度春季高于旷野,夏秋季则低于旷野。林带防风效应和遮荫效应在夏季发挥最好,分别可达77.87%和67.50%,气温最高可降低0,40℃,空气相对湿度可增加7.59%~18.61%。林内不同小气候因子问极显著相关,且气温和土温的相关性最好。关键词:白蜡人工林;动力效应;热力效应;水文效应;滨海盐碱地中图分类号:s716.3;P42文献标志码:A文章编号:1672—3007(2014)03-0071.07MicroclimateeffectsofFraxinuschinensisplantationsonco
3、astalsaline.alkalisoilShenYunkuo,DongZhi,WangLiqin,ZhangZhipeng,ShaoShuixian(ForestryCollegeofShandongAgricuhuralUniversity,ShandongProvincialKeyLaboratoryofSoilErosionandEcologicalRestoration/TaishanForestEcosystemResearchStation,271018,Tai’an,Shandong,China)Abstract:Onthe
4、basisoflocatedobservation,wechoseFraxinuschinensisplantationsasresearchobjects,andbarelandascontrol,oncoastalsaline—alkalisoilasmicroclimatemonitoringsite.Westudieddynamic,thermal,andhydrologicaleffectsofF.chinensisplantations,SOastoprovidesomereferenceforecologicalimpactas
5、sessmentofartificialafforestationoncoastalsaline·alkalisoil.Theresultsshowedasfollows.Thesolarradiation,windspeed,soiltemperatureandsoilmoistureintheplantationswereobviouslylowerthanthatonbareland,whiletheairhumiditywashigher.Comparedwiththebareland,theairtemperatureinplant
6、ationswashigherinspring,butlowerinsummerandautumn.Thewindbreakeffectandshadeeffectreached77.87%and67.5%.respectively.insummer.Comparedwithbareland,theairtemperatureinplantationsdecreasedbyasmuchas0.40oC,buttheairhumidityincreasedby7.59%一18.61%.Therewasaverysignificantcorrel
7、ationbetweenanytwoofdifferentmicroclimatefactorswithintheforest,especiallythecorrelationbetweenairtemperatureandsoiltemperature.Keywords:Fraxinuschinensisplantation;dynamiceffect;thermaleffect;hydrologicaleffect;coastalsa】ine—a】ka】isoi】小气候(microclimate)是指在相同的大气候和局地气候范围内,由于地
8、形、土壤和植被等下垫面构收稿日期:2013—10—10修回日期:2014-'03-28项目名称:世界银行贷款山东生态造林项目“山东生态造林项目生态效益监测与评估”(
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