Shuitu Baochi Xuebao目的黄河三角洲作为典型生态脆弱区，其景观生态风险受多重因素影响，表现尤为突出。系统认知景观风险不仅是优化景观格局的基础，更是有效应对生态风险的关键。方法以黄河三角洲典型城市东营市为研究区，构建生态系统服务价值和“胁迫度-脆弱度-韧性”的景观生态受损概率评估框架。采用ESDA和地理探测器模型，从网格尺度探究城市景观生态风险的空间异质性及影响因素。结果1) 东营市景观生态风险平均值为0.15，呈北部东部高、中偏西南低的空间格局。生态系统服务价值约为3 175.99亿元，低于当年GDP ...
李建春 +4 more
doaj
Shuitu Baochi Xuebao, 2003 利用1958年、1975年、1982年和1996年的土壤侵蚀强度等级图,在GIS软件支持下生成土壤侵蚀强度栅格分类图。通过FRAGSTATS景观格局分析软件计算出了10多种景观类型参数,并从斑块类型水平和景观水平2个层次上定量地分析了兴国县土壤侵蚀的分布格局及其变化规律。结果表明:兴国县的土壤侵蚀状况从1958年到1996年已发生了明显的好转。此期间经历了两个明显的时期:即1958年到1975年的侵蚀加剧时期和1975年后的侵蚀减退期。到1996年,兴国县无明显侵蚀的面积已达到全县面积的74.6 ...
王库 史学正 于东升 史德明
doaj
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
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Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiNie WZ, Xie KL.
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Hua Xi Kou Qiang Yi Xue Za ZhiZhao D, Zheng L.
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Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYe Y +5 more
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