河西走廊内陆盐渍土治理复合生物系统研究

本文分析了河西走廊内陆盐渍土特征和治理状况 ,在治理盐渍土上把各单项生物措施、生物措施和农业技术措施、种植业和养殖业有机结合 ,形成了林草牧、农林牧复合生物系统 ,将盐渍土的改良、培肥和利用配套 ,在农业系统中延伸了食物链 ,充分利用自然资源 ,实现了内陆盐渍土改良与持续利用的目的。研究表明 :营造农田防护林、种植牧草、发展养殖业和种植业 ,实施后土壤脱盐率达 77% ,总孔隙度增加 5 .2 9% ,团粒结构增加 2 3 .14% ,自然含水量增加 70 .3g/kg ,耕翻后种植小麦平均产量达 5 46 1.5kg/hm2 ,种植玉米平均产量达 10 2 36 .5kg/hm2 。

The Study of Improving of Compand Biosystem of Continental Saline Soil in HeXi Cirridor

This text analysesed the characteristic and harness condition of HeXi corridor continental saline soil.By organic synthesis of singal biological?method biological methods and agriculture technical method plant industry and animal industry,it comes to compound biosystem of forest ?herb?pasture,agriculture?forest?pasture?It extained food chain of agriculture system,full used nature resources and sustained usuing continental saline soil by ameliorating? fertilizerring and using.Study showed:by planting field guarding foresting? planting forage grasses? developing animal industry and planting industry;the desalinization ratio increased to 77%,the total porosity increased 5 .29%,granular structure increased 23.14%,natural water content increased 70.3g/kg,the average output of wheat was 5461.5kg/hm2,the average output of maize was 10236.5kg/hm2.