用来自农业固体废物的生物炭修改的盐性-性土壤:改善作用和机制
Yongkun Cai1, Liping Ren2, Lele Wu3
1Key Laboratory of Mariculture (Ministry of Education), Fisheries College, Ocean University of China, Qingdao, 266001, P. R. China.
Journal of environmental management
|August 16, 2024
概括
农业废弃物生物炭 (BC700) 通过增加营养素和有机碳,同时降低pH,改善盐土壤. 这增强了土壤微生物的活力和 Salicornia europaea L 的生长,为废物回收提供了一个可持续的解决方案.
科学领域:
- 土壤科学 土壤科学
- 环境科学 环境科学
- 农业科学 农业科学
背景情况:
- 盐性土壤覆盖全球8亿公,限制了农业生产力.
- 鱼类养殖废物带来了缩的风险和盐度的挑战.
- 开发用于盐土壤整治和废物回收的可持续解决方案至关重要.
研究的目的:
- 为了研究来自水产养殖固体废物 (BC700) 的生物炭对盐酸性土壤性能的改善作用.
- 评估BC700对Salicornia europaea L. L.生长的影响.
- 评估BC700作为一种回收海洋养殖废物的方法.
主要方法:
- 从水产养殖固体废物中制备生物炭 (BC700).
- 将1%,3%和5%的BC700应用于盐土壤.
- 分析土壤的物理化学特性 (pH,总,可用的,可用的,有机碳).
- 测量土壤酶活性 (尿酶,糖酶,性酸酶) 和细菌群体结构.
- 评估 Salicornia europaea L 的生长和土壤微生物群落的稳定性.
主要成果:
- BC700显著增加了土壤总,可用的,可用的和有机碳 (2.00-68.30%).
- BC700的应用导致了土壤pH值的显著降低.
- 观察到土壤酶活动的增强和细菌群体结构的改变,改善了营养循环.
- BC700的应用促进了Salicornia europaea L的生长率为19.8-25.4%,并增加了土壤微生物群落的稳定性.
结论:
- 来自水产养殖废物的生物炭 (BC700) 有效地改善了盐性性土壤的物理化学和生物特性.
- 同时利用BC700和Salicornia europaea L种植提供了一种可持续的方法,用于水产养殖废物回收和土壤整治.
- 建议使用3%的BC700补充剂,以环保地改善盐性土壤.
相关概念视频
Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
Effect of Sea Water on Concrete
204
Concrete exposed to seawater can undergo degradation like the dissolution of ettringite and gypsum, increasing the material's porosity and decreasing its strength. In contrast, the crystallization of salts within the concrete's pores can cause expansion, particularly above the waterline where evaporation occurs. Nonetheless, this expansion only happens when seawater, enabled by the concrete's permeability, manages to infiltrate the structure.
Concrete in areas between tide marks,...
Concrete in areas between tide marks,...
204


