内蒙古民族大学学报（自然科学版）2026，Vol.41Issue(4)：1-8,8.DOI:10.14045/j.cnki.15-1220.2026.04.001
科尔沁沙地盐碱化草地及其生态修复研究进展
Research Progress on Salinized Grassland and Its Ecological Restoration in Horchin Sandy Land
摘要
Abstract
Located at the southeastern edge of the northern semi-arid agro-pastoral ecotone,the Horchin Sandy Land is the largest sandy land among China's four major sandy regions and faces prominent salinization issues.In re-cent years,under the combined effects of climate change and irrational land use,grassland degradation has intensified,and the area of salinization continues expanding.Here,we summarized the restoration techniques for salinized grass-lands in Horchin,based on the evolution of vegetation community structure,soil physicochemical properties,and micro-bial characteristics in lightly,moderately,and heavily salinized grasslands.In terms of physical measures,methods such as deep loosening and plowing,drainage and water table control,and"sand mulching to suppress alkalinity"are em-ployed to improve soil structure and block the upward movement of water and salt.For chemical measures,the applica-tion of gypsum,polymer amendments,and organic materials facilitates ion exchange,pH regulation,and soil aggregate reconstruction biological measures include grazing exclusion,planting salt-tolerant forage grasses and shrubs,microbial inoculants,and green manure rotation,which restore vegetation cover and soil nutrient cycling,enhancing ecosystem sta-bility and resilience.Future restoration efforts for salinized grasslands in Horchin should adhere to the principle of"water-determined greening"and develop an integrated"engineering-chemical-biological"restoration model.关键词
科尔沁沙地/草地盐碱化/生态修复Key words
Horchin Sandy Land/grassland salinization/ecological restoration分类
农业科技引用本文复制引用
红梅,赵萌莉..科尔沁沙地盐碱化草地及其生态修复研究进展[J].内蒙古民族大学学报（自然科学版）,2026,41(4):1-8,8.基金项目
草业国家技术创新中心重大创新平台建设专项基金项目(CCPTZX2023B03) （CCPTZX2023B03）
通辽市科技"突围"工程项目(TL2025TW005) （TL2025TW005）
