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 | 基于土壤生物工程的小流域侵蚀沟治理研究进展显示文摘水土保持是生态文明建设的重要组成部分,是国家重点资助应用基础研究,是践行“绿水青山就是金山银山”治理理念的经济发展领域。当前我国水土流失问题依然严峻,仍有超过国土四分之一水土流失面积,且分布广、治理难度大,给生态环境和社会经济造成严重破坏,亟待加快推进小流域侵蚀沟治理。基于土壤生物工程技术的小流域侵蚀沟治理已受到国内外学者高度关注,国内相关研究理论储备较充分,但理论结合实践方面距世界先进水平仍有较大差距。为进一步推动该技术在我国的应用和发展,文章综述了土壤生物工程的需求背景、概念和发展;其次,从生态视角梳理其地上-地下生态功能,论述其优缺点,探讨影响工程建设与实施的主要因素;最后,做了适合我国国情的土壤生物工程研究展望。结果表明土壤生物工程技术不仅是高效的小流域侵蚀沟生态治理方法,还兼具经济与景观功效。建议在系统开展基于土壤生物工程技术的小流域侵蚀沟治理的同时,进一步加强其理论和技术研究,以期提供更完善的理论支撑和因地制宜的技术方法,进而为科学推进我国水土流失综合治理工作奠定坚实基础。 | 冷瑜 曹丽娜 张振兴 孙伟 杨海军 林晨鹭 高玉福 | 2021 | 生态科学2021，40，6： | 2 |
| 2 | Vegetation recovery after fire in mountain grasslands of Argentina显示文摘Fire is a natural disturbance occurring every few years in many grasslands ecosystems. However, since European colonization, fire has been highly reduced or even suppressed in Argentinean grasslands, fostering ignitable material accumulation. This has led to occasional catastrophic controldemanding fire events, extended for larger areas. The aims of this work are to study vegetation recovery and change after a non-natural fire event in mountain grasslands. The study area is located in the Ventania mountain system, mid-eastern Argentina. We studied vegetation recovery after fire(January 2014) in two different communities: grass-steppes(grasslands) and shrub-steppes(open low shrublands). We measured vegetation cover, species richness and bare ground percentage in burned and unburned areas 1, 4, 8, 11 and 23 months after fire. Vegetation surveys were also performed at the end of the growing season(December) 11 and 23 months after fire. Data were analyzed using regression analysis, ANOVA and multivariate analysis(NMS, PERMANOVA). Both communities increased their vegetation cover at the same rate, without differences between burned and unburned areas after two years. Species richness was higher in shrublands and their recovery was alsofaster than in grasslands. Considering functional composition, besides transient changes during the first year after fire, there were no differences in abundance of different functional vegetation groups two years after fire. At the same time, shrublands showed no differences in species composition, while grasslands had a different species composition in burned and unburned plots. Also, burned grassland showed a higher species richness than unburned grassland. Data shown mountain vegetation in Pampas grassland is adapted to fire, recovering cover and richness rapidly after fire and thus reducing soil erosion risks. Vegetation in mountain Pampas seems to be well adapted to fire, but in grasslands species composition has changed due to fire. Nonetheless, these changes seem to be not permanent since prefire species are still present in the area. | Alejandro LOYDI Flavia AFUNK Andrés GARCíA | 2020 | Journal of Mountain Science2020，17，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员