共被期刊论文引用了2次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effects of terracing on soil properties in three key mountainous regions of China显示文摘Terracing greatly affects soil properties,ecosystem services,human welfare and geographical sustainability.The purpose of this article is to determine the influence of terracing on soil properties across diverse regions in China.Three representative terrace types,including dryland loess terraces,dry-stone terraces,and paddy terraces,were selected as case study areas.Soil sampling was stratified according to thickness of soil layers in each terraced area.Based on field investigations and soil sampling,combined with the means of variance,correlation,redundancy and regression analysis,we analyzed the characteristics of soil properties in the terraces across three areas.Results showed that:(1)alterations of soil physicochemical properties mainly depend on differences between soil parent materials in such regions;(2)Due to the existence of“four-element isomorphism”in the ecosystem and reasonable human activities,paddy terraces had the greatest impact on soil properties which is mainly reflected in decreasing soil pH and increasing SOC,TN,and TK;(3)The content of SOC and TN in different areas was higher in terraced fields than in the sloped lands and decreased with soil deepening;(4)To maintain sufficient supply of soil nutrients and support the sustainability of agricultural terraces,it is necessary to apply manure to improve soil fertility and accelerate its aggregation in the terraces.For example,an increase in the application of nitrogen fertilizer in terraced fields in Hebei and Gansu provinces,which have a serious deficiency in soil available phosphorus(AP),is necessary to get greater amounts of P fertilization.The present study offers a theoretical foundation for the sustainability of terraced ecosystems through efficient crop production,which is the basis for strengthening the ecological security of terraced areas and promoting regional sustainability in those fragile mountains. | Die Chen Wei Wei Liding Chen | 2021 | Geography and Sustainability2021，2，3： | 1 |
| 2 | 青藏高原纳木错异常高湖面重建工作研究进展与展望显示文摘青藏高原的许多湖泊发育有湖岸线、侵蚀阶地和高湖面沉积物,这些地貌和沉积单元是反映地质历史时期湖面变化的直接地貌和岩性证据。它们不仅反映了湖泊水文变化历史,还可作为揭示区域乃至全球环境变化的重要载体。在青藏高原众多湖泊中,纳木错最具典型性和代表性。纳木错湖岸最高古湖相沉积物位于现代湖面之上约150 m,高出当今溢流垭口约123 m。至今,有关纳木错异常高湖面的发育时代、湖侵-湖退过程、异常高湖面的形成机制、与其他湖泊之间的水文联系等科学问题仍不清楚或存在很大争议。本文以纳木错异常高湖面的特征、时代、期次和成因问题为主题,综述了一个多世纪以来国内外学者对纳木错湖面变化重建的研究成果,尤其对目前纳木错古湖面重建研究中存在的问题进行了总结,并对未来的工作重点进行了展望。此外,基于初步的调查结果,认为纳木错高湖面沉积可能形成于全新世中晚期,并指示了一次湖侵-湖退过程。南支槽的异常振荡及其导致的冬半年降水增加可能是引起湖面变化的主要驱动因素。 | 王琨莹 冯金良 裴乐乐 胡海平 陈锋 林永崇 张继峰 胡兆国 | 2023 | 冰川冻土2023，45，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员