A Study of Bioremediation and Control on Inland Saline Soil in Hexi Corridor

Lu Biao; XU Yao-zhao; ZHAO Yun-chen

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A Study of Bioremediation and Control on Inland Saline Soil in Hexi Corridor

- A Study of Bioremediation and Control on Inland Saline Soil in Hexi Corridor
- Bulletin of Soiland Water Conservation Vol. 27, Issue 3, Pages: 198-200(2008)
- 作者机构：
  
  1. 河西学院农学系,甘肃,张掖,734000
  2. 河西绿洲农业研究所,甘肃,张掖,734000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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Lu Biao, XU Yao-zhao, ZHAO Yun-chen. A Study of Bioremediation and Control on Inland Saline Soil in Hexi Corridor[J]. Bulletin of Soiland Water Conservation, 2008, 27(3): 198-200.
DOI：

Lu Biao, XU Yao-zhao, ZHAO Yun-chen. A Study of Bioremediation and Control on Inland Saline Soil in Hexi Corridor[J]. Bulletin of Soiland Water Conservation, 2008, 27(3): 198-200. DOI：

摘要

分析了河西走廊内陆盐渍土的分布、类型和含盐特征。生物修复与调控试验研究表明

草甸盐土经种植碱茅草3 a

耕层土壤与对照相比脱盐率达77.00%

pH值下降了0.25个单位

容重降低0.14 g/m3

总孔隙度增加5.29%

团粒结构增加了23.14%

自然含水量增加70.30 g/kg。3年生碱茅草平均产草量36 000 kg/hm

(鲜重);盐化耕地采用以种植牧草为中介

将种植业与农区林业、畜牧业有机结合成互相依存

互相促进的农林牧复合生物系统治理后

土地利用率可达184.00%以上

可获得16 300~35 500元/hm

的经济收入

治理区农户人均纯收入由1 300.80元增加到2 160.70元

增加了66.00%。

Abstract

The distribution

type

and salt characteristics of inland saline soil in the Hexi corridor were analyzed.Experiments of bioremediation and control were conducted with the alkali meadow grass planted in saline soil for 3 years.Contrasted with control group

topsoil desalination rate was up to 77.00%;pH value decreased 0.25 pH unit;soil bulk density decreased 0.14 g/m3;total porosity increased by 5.29%;soil aggregate structure increased by 23.14%;soil water content increased 70.30 g/kg;average triennial alkali grass yield was 36 000 kg/hm2(fresh weight).In addition

planting forage in saline soil as a medium and establishing a compound agro-forestry-animal system promoted the sound combination of planting industry

forestry

and livestock husbandry.Because of the reasons

utilization ratio of land reached more than 184.00%;the income of land increased from 16 300 to 35 500 yuan/hm2;average income per farmer in the controlling region increased by 66.00%

from 2 160.70 to 1300.80 yuan.

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