Shuitu Baochi Xuebao目的为应对黑龙江省日趋严峻的城市化加快，景观破碎化、生物多样性减少等生态问题，推动生态系统健康发展。方法研究基于2000年、2010年、2020年土地利用数据，计算景观生态风险指数构建景观生态风险评价模型，对比分析生态风险对生态阻力的影响，选择2020年生态风险评价结果纳入综合阻力面。通过MSPA模型、景观连通性识别和筛选生态源地，并基于最小累积阻力模型（MCR）和电路理论提取生态廊道，结合生态风险分区构建多层次的生态安全格局。结果1）2000—2020年，黑龙江省的景观生态高风险区域整体呈下降趋势 ...
陈朝阳, 石淞, 李文
doaj
Shuitu Baochi Xuebao[目的] 系统梳理、总结、分析隔层创建技术在土壤改良、养分循环、生态修复及作物管理等方面的应用现状、技术特征与环境效益,以期为现代农业提质增效与可持续发展提供科学依据和理论支撑。[方法] 选取隔层创建技术为研究对象,全面综述其对土壤物理结构、土壤水盐热效应、土壤养分状况、土壤酶活性、土壤微生物特性和作物生产力的影响效应及其调控过程。[结果] 隔层创建技术对土壤结构、养分含量及其生态系统服务功能具有正向调节效应,并能够有效提升农业生产效能,但具体调控效果则因模式选择与田间管理等而异。[结论 ...
贾振江 +7 more
doaj
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[The Association Between Depressive Symptoms and Multimorbidity Among Middle-Aged and Older Adults in Rural China: Sequential Mediation Effects of Pain and Activities of Daily Living]. [PDF]
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