Bioremediation Methods of Saline-alkali Land

doi:10.11924/j.issn.1000-6850.casb2023-0585

Abstract

Abstract:

The area of saline alkali land in China accounts for one tenth of the total area of saline alkali land in the world, which seriously restricts agricultural production. It is very important to repair and make good use of saline alkali land. At present, the methods of saline-alkali land remediation include chemical remediation, engineering remediation and bioremediation, among which bioremediation is an economical, efficient, green and sustainable method. Bioremediation improves the soil and environment of saline-alkali land through biological resources such as plants and microorganisms. Halophytes can grow and reproduce in saline-alkali soil and have the ability to repair high concentration saline-alkali soil, while common crops can enhance their salt tolerance through gene mining and variety cultivation to achieve the purpose of repairing saline-alkali soil. Microorganisms can also be used to improve crop salt tolerance or degrade salt and alkaline substances in saline-alkali soil. Bioremediation is a green and environmentally friendly method for the remediation of saline-alkali land, which is in line with the development strategy of sustainable agriculture and circular economy in China.

Key words: saline alkali land utilization, bioremediation, salt tolerant plants, microorganism

HU Shiqin, GU Huaiying, GUO Longbiao, HAO Zhiqi, LIU Changhua, MENG Lijun. Bioremediation Methods of Saline-alkali Land[J]. Chinese Agricultural Science Bulletin, 2024, 40(17): 36-42.

Figures/Tables 2

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科	属	植物名称	最大/适宜盐浓度/(mmol/L)
苋科Amaranthaceae	滨藜属Atriplex	大洋洲滨藜Atriplex nummularia	600/200
		四翼滨藜Atriplex canescens	520/180
		Atriplex halimus	600/200
		大滨藜Atriplex lentiformis	720/180
		多果滨藜Atriplex polycarpa	400/100
		Atriplex spongiosa	750/200
		Atriplex californica	460/125
		中亚滨藜Atriplex centralasiatica	400/100
		Atriplex griffithii	360/90
		榆钱菠菜Atriplex hortensis	514/86
		Atriplex laciniata	600/100
		Atriplex leucophylla	400/125
		异苞滨藜Atriplex micrantha	600/100
		Atriplex portulacoides	1000/200
		戟叶滨藜Atriplex prostrata	600/100
		草地滨藜Atriplex patula	720/180
	雾冰藜属Bassia	钩刺沙冰藜Bassia hyssopifolia	720/180
	雾冰藜属Bassia	地肤Bassia scoparia	1800/300
	碱蓬属Suaeda	盐地碱蓬Suaeda salsa	800/200
	碱蓬属Suaeda	Suaeda fruticosa	1000/200
	墨节木属Allenrolfea	Allenrolfea occidentalis	1000/360
爵床科Acanthaceae	海榄雌属Avicennia	黑海榄雌Avicennia germinans	940/170
爵床科Acanthaceae	海榄雌属Avicennia	海榄雌Avicennia marina	1200/300
木麻黄科Casuarinaceae	异果木麻黄属Allocasuarina	海滨异木麻黄Allocasuarina littoralis	250/75
豆科Fabaceae	金合欢属Acacia	Acacia ampliceps	600/200
禾本科Poaceae	獐毛属Aeluropus	Aeluropus lagopoides	750/150
红树科Rhizophoraceae	木榄属Bruguiera	小花木榄Bruguiera parviflora	400/100
肉穗果科Bataceae	肉穗果属Batis	肉穗果Batis maritima	1000/200

科	属	植物名称	最大/适宜盐浓度/(mmol/L)
苋科Amaranthaceae	滨藜属Atriplex	大洋洲滨藜Atriplex nummularia	600/200
		四翼滨藜Atriplex canescens	520/180
		Atriplex halimus	600/200
		大滨藜Atriplex lentiformis	720/180
		多果滨藜Atriplex polycarpa	400/100
		Atriplex spongiosa	750/200
		Atriplex californica	460/125
		中亚滨藜Atriplex centralasiatica	400/100
		Atriplex griffithii	360/90
		榆钱菠菜Atriplex hortensis	514/86
		Atriplex laciniata	600/100
		Atriplex leucophylla	400/125
		异苞滨藜Atriplex micrantha	600/100
		Atriplex portulacoides	1000/200
		戟叶滨藜Atriplex prostrata	600/100
		草地滨藜Atriplex patula	720/180
	雾冰藜属Bassia	钩刺沙冰藜Bassia hyssopifolia	720/180
	雾冰藜属Bassia	地肤Bassia scoparia	1800/300
	碱蓬属Suaeda	盐地碱蓬Suaeda salsa	800/200
	碱蓬属Suaeda	Suaeda fruticosa	1000/200
	墨节木属Allenrolfea	Allenrolfea occidentalis	1000/360
爵床科Acanthaceae	海榄雌属Avicennia	黑海榄雌Avicennia germinans	940/170
爵床科Acanthaceae	海榄雌属Avicennia	海榄雌Avicennia marina	1200/300
木麻黄科Casuarinaceae	异果木麻黄属Allocasuarina	海滨异木麻黄Allocasuarina littoralis	250/75
豆科Fabaceae	金合欢属Acacia	Acacia ampliceps	600/200
禾本科Poaceae	獐毛属Aeluropus	Aeluropus lagopoides	750/150
红树科Rhizophoraceae	木榄属Bruguiera	小花木榄Bruguiera parviflora	400/100
肉穗果科Bataceae	肉穗果属Batis	肉穗果Batis maritima	1000/200