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1、http://www.chilingzhi.cn/http://www.tatengkun.com/http://www.tasclsb.com/http://www.sdymdkj.com/干旱半干旱生态农牧业发展展望一、概述A,anoverviewofthe在我国,干旱半干旱区是指那些降雨量小、气温高、蒸发量大、土壤及大气水分极不平衡的地区。从地理位置上看,我国西北地区就属于这种情况。该地区处于中纬度西风带,属常温气候,年降雨量不足200mm,干燥度大于3.50;东起大兴安岭,西至国境线,连绵400多公理,横跨50个经度,总面积相当于英国国土的12倍。这些地区的农牧业发展状况直接与其
2、地理位置、气候、环境相关,解决了该区的农牧业发展问题,也就等于局部解决了干旱半干旱地区的发展问题。Inourcountry,aridandhalfaridareasarethosesmallrainfall,hightemperature,evaporation,soilandatmosphericwaterishighlyunevenareas.Lookfromthegeographicallocation,isthiskindofsituationinnorthwesternChina.Theregioninthemid-latitudewesterlies,coldclimate,
3、lessthan200mmannualrainfall,drydegreegreaterthan3.50;Eastthegreaterhingganmountains,westtotheborder,sweeping400axioms,spanning50longitude,12timestotalareacorrespondstotheBritishstate.Farmingandanimalhusbandrydevelopmentintheseareasdirectlyrelatedtoitsgeographicalposition,climate,environment,solve
4、theproblemofagriculturedevelopmentinhe"governingforthepeople","Nomattertheinterestsofthemasses"conceptunderstandingisnotinplace.Thespecificworktreatswiththedeployment,afewleadingcadrescomplainthatworkistoocomplicated,toomuchresponsibility,thepressureistoolarge,toomuchemphasisonthedifficultyofthew
5、ork.Forexample,noncoalminehttp://www.chilingzhi.cn/http://www.tatengkun.com/http://www.tasclsb.com/http://www.sdymdkj.com/thisregion,isalsopartialsolvedthedevelopmentprobleminaridandsemi-aridarea.干旱半干旱地区虽属"非灌不植"地区,但它也是一块富饶的土地,遍布其间的山脉和大多数季节性河流使得该区域具有独特的地貌特征及生物气候特征,物产也独具特色。由于该区昼夜温差大,光照时间长而且充足,所以其植物
6、光合产物量大,夜间物质消耗少,农产品不但产量高而且质量好,口感好,瓜甜果香。只要有灌溉,该区就是一个物产丰美的地方,比如内蒙古河套地区因有灌溉而成为我国重要的商品粮基地和瓜果生产盛地。Aridandsemi-aridareaisbelongto"nonirrigationnotrooted"areas,butitisalsoapieceoffertileland,dottedmountainsandmostseasonalriversmakestheregionhasauniquetopographicalfeaturesandbiologicalclimatecharacteristi
7、cs,theproductalsohasdistinguishingfeaturealone.Duetothebigtemperaturegapbetweendayandnight,andlightingtimeislongenough,soitsplantphotosynthesisproductionquantityisbig,thenightlessmaterialconsumption,andagriculturalprod
