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时间:2019-08-03
《pdf全文河西走廊苹果梨生态气候适应性与区划研究》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、维普资讯http://www.cqvip.com第11卷第2期中国生态农业学报Vo1.11No.22003年4月ChineseJournalofEco—AgricultureApril,2003河西走廊苹果梨生态气候适应性与区划研究刘明春马鸿勇(甘肃省武威市气象局农业气象试验站武威733000)(甘肃省张掖地区气象局张掖734000)摘要试验研究表明河西走廊由于生态气候的不一致性,苹果梨具有明显的地域分布和时间特征,并表现出不同生长习性和品质属性,因气象要素分布的不均衡性,苹果梨生长发育年际间亦存在一定差异。甘肃省民乐县园艺场苹果梨果实生
2、长发育动态呈“S”型曲线增长,据此计算出7月上旬至8月中旬果实生长率(CGR)最大,是果实膨大关键期,果实膨大适宜温度为15~21℃,全生育期需稳定通过≥7℃年积温2300~2800℃,品质形成期(9月上旬~10月上旬)要求凉爽的气候,在适温范围内日较差大,光照充足,有利于可溶性固形物含量的积累和着色,品质好。并依据影响苹果梨产量和品质的主要气象制约因子将河西走廊划分为5个气候适生区。关键词苹果梨生态条件气候区划Adaptabilityanalysisofecologicalclimateandregionalresearchonthea
3、pplepearinHexiCorridor.LIUMing-Chun(AgrometeorologicalExperimentStation,MeteorologicalBureauofWuweiCity,GansuProvince,Wuwei733000),MAHongYong(MeteorologicalBureauofZhangyeDistrict,GansuProvince,Zhangye734000),CJEA,2003,11(2):114~116AbstractExperimentalanalysisshowsthatowi
4、ngtObedifferentecologicalclimatesinHexiCorridor’Sareas,theapplepearhasobviousregionaldistributionandtemporalcharacters,andshowsdifferentgrowinghabitsandqualityproperties.Thegrowthanddevelopmentofapplepearshowacertaindifferenceyearlybecauseofdisequilibriumofmeteorologicalf
5、ac—torsdistributionineveryyear.Thegrowingtrendofappl~pearfruitshows⋯S’typicalincreasingcurve.AccordingtOthiscurve,wecancomputerthatthefruitproductivityisthelargestbetweenthelasttendaysofJulyandthemiddletendaysofAugust.Thesuitabletemperatureoffruitswellingis15~21"C.Thewhol
6、egrowingperiodneedstOpass≥7℃andac—cumulatingtemperaturesteadilythatis2300~2800"(2.Thequalities’formingperiod(fromthefirsttendaysofSeptem—bertOthefirsttendaysofOctober)needscoolclimate.Withinthesuitabletemperature,therearebigdailytemperature’Sdifferenceandenoughsunlightwhi
7、chareinfavorofgoodqualityandaccumulationofsolublesolidity’Scontent.Onthebasisofanalysisonthemainmeteorologicalrestrictingfactorsthataffecttheapple—pear’Syieldandquality,theHexiCor—ridorisplottedintofiveclimatesuitablegrowingareas.KeywordsApplepear,Ecologicalcondition,Clim
8、ateregiondivision河西走廊光照资源丰富,日照时间长,气温日较差大,空气相对湿度低,病虫害发生程度轻,具备生产优质果品的自然生态气候条件,苹果梨品质优良,是该区经济发展的主导产品
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