开采条件下黄土丘陵区地下水系统动态研究——以内官–香泉盆地为例 Keywords: Abstraction; Dynamic; Groundwater System; Loess Hilly Area [gap=428]关键词：开采；动态；地下水均衡；黄土丘陵区
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... 第一文档网 关键词:黄土丘陵区;中尺度;健康诊断;障碍度;生态系统恢复重建 [gap=1529]Key words: Loess hilly and gully region; Mesoscale;Health indicators diagnoses; Limiting degree;Ecosystem rehabilitatio..
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腐殖质（Humus） 退耕地（Rehabilitated grassland） 黄土丘陵区 （ Hilly loess region ） ..
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Method Orchard at different years in loess hilly region was chosen as the subject to reveal changes in soil quality through experimental analysis and statistical method,and the slope cropland was used as reference.
方法采用时空互代法,以黄土丘陵区不同年限的塌地果园为研究对象,选取坡耕地为对照,通过室内测试分析,并运用统计和相关分析等方法,研究土壤质量的变化过程。
参考来源 - 黄土丘陵区营造果园后土壤质量效应分析ConclusionIn the hilly-gully region of Loess Plateau,the improvement of natural grassland of soil microaggregate is more significant than artificial shrubland and artificial grassland after slope cropland was abandoned.
结论黄土丘陵区坡耕地退耕后,天然草地对于土壤微团聚体的改善作用优于人工灌木和人工草地。
参考来源 - 黄土丘陵区不同植被类型根际土壤微团聚体及颗粒分形特征Main conclusions are as follows:1. The characteristics of vegetation community restoration in the different types of landforms were clarified in the hilly-gully loess region of China.
主要结论如下:1.探讨了黄土丘陵区不同地貌类型下植被自然恢复演替的群落特征,进一步揭示了沟缘线植被的植物篱廊道作用和沟谷地植被的斑块分布格局。
参考来源 - 黄土丘陵区植被次生演替草灌阶段的土壤条件·2,447,543篇论文数据，部分数据来源于NoteExpress
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