鹽堿地改良與綜合利用技術研究進展與展望

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Abstract：The improvement andcomprehensive utilization of saline-alkali landareof strategic importance for expanding arablelandandensuringnationalfood security.Comprehensiveutilizationandremediationtechnologiesforsaline-alkali soils serveas fundamentaland crucial means for harnessng the potential of such lands.This studysummarizesphysical， chemical，hydraulic，microbial，andphytoremediationmeasures forvarious typesofsaline-alkalilandreclamation，then proposes toadhere toregional divisionandcomprehensive management，implement stepwisequalityimprovementofsalinealkalicroplands，promotesorderlyintegrativedevelopmentofsaline-alkaliwasteland，andestablishesdiversified remediationandutilizationpathwaysformild，moderate，severesaline-alkalisoilsandbarrnlands.Furthermore，withthe fundamentalrequirementsofehancingsoilfertility，increasingproductivityandprotectingtheecologicalenvironmentof saline-alkalisoils，researchonimprovedutilization technologies shouldbe strengthenedinaspectssuchas high-efciency andsafeutilizationof multiple watersources，greenmitigationofsaline-alkaliconstraints，nutrientexpansionandefciency enhancement of saline-alkali arable land， as well as carbon sequestration and stabilization.

Keywords：Saline-alkalineland;improvement technology；comprehensiveutilization;diversification;waterandsalt regulation

鹽堿地是指土壤中存在較高濃度的可溶性鹽分離子，對土壤的物理、化學、生物等特性和植物生長造成不利影響的各種類型土壤的統(tǒng)稱，主要是指鹽土和堿土以及不同程度鹽化和堿化的各種類型土壤[1-3]。（剩余22962字）