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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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陕北黄土高原景观动态的植被覆盖季节响应
DOI: 10.11821/xb200502013, PP. 299-308
Keywords: 植被覆盖,景观动态,黄土高原
Abstract:
半干旱地区生态环境状态与景观动态变化息息相关,为深入探讨景观动态的生态响应,本研究选择陕北黄土高原为研究区,分别就景观动态的3种类型(景观类型间变化、类型内组分变化及未变化)与植被覆盖状态进行分析。其中植被覆盖状态主要通过植被覆盖值高低及年内植被恢复期、维持期与转折点等曲线特征体现。结果发现研究区景观类型的动态变化并不显著,而各动态类型与植被覆盖的相关程度各不相同,植被覆盖不仅和景观类型有关,亦与景观动态类型有关,而在植被覆盖对景观动态的响应上,则体现出由于景观动态类型的差异,造成同一景观类型的植被覆盖季节响应模式和强度完全不同。
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