干旱区生态环境知识资源中心(Arid): 盐生植物对重盐渍土脱盐效果

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	盐生植物对重盐渍土脱盐效果
其他题名	Desalination Effect of Halophytes in Heavily Salinized Soil of Karamay, Xinjiang, China
	赵振勇; 张科; 王雷; 王平; 田长彦
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2013
卷号	33 期号:5 页码:1420-1425
中文摘要	以新疆克拉玛依农业综合开发区新垦重盐渍土为研究对象,在滴灌条件下开展了盐生植物盐角草(Salicornia europaea)、盐地碱蓬(Suaeda salsa)和裸地(对照)处理的试验,通过测定植物地上生物量及植株和土壤中K~+、Na~+、Ca~(2+)、Mg~(2+)、Cl~- 和 SO_4~(2-)含量及土壤总盐含量,评估种植盐生植物对重盐渍土盐分的影响。结果表明:灌溉条件下,盐角草和盐地碱蓬地上生物量分别为11 044.37 kg·hm~(-2)和19 119.26 kg·hm~(-2),刈割后地上部分灰分盐分别为4 709.98 kg·hm~(-2)和5 184.96 kg·hm~(-2);与种植期前相比,种植期后盐角草、盐地碱蓬和对照处理0~30 cm土层总盐分别下降了55.62%、32.98%和20.79%,盐角草和盐地碱蓬处理下降幅度均高于对照,30~60 cm土层盐角草和盐地碱蓬处理土壤总盐分别下降了21.82%和29.16%,而对照却上升了18.31%;盐角草和盐地碱蓬均对Na~+、Cl~-和SO_4~(2-)具有较强的摄取能力,尤其是对Cl~-表现出更强的选择吸收倾向;盐角草和盐地碱蓬SO_4~(2-)含量基本相当,但盐角草Na~+和Cl~-含量分别是盐地碱蓬的2.33倍和2.22倍,盐角草对于Na~+和Cl~-的强积聚特征使其更适于对氯化物盐渍土的改良。在盐渍荒漠新垦地种植盐生植物,土壤脱盐效果明显。
英文摘要	The effect of salt-resistant plants on improving heavily salinized soil and reducing salt content in the tillage layer was evaluated in the newly cultivated, saline land in the Karamay Agricultural Development Region, Xingjiang, China. Annual halophytesSalicornia europaea and Suaeda salsa were grown under drip irrigation, and then above-ground plant biomass, content of K~+, Na~+, Ca~(2+), Mg~(2+), Cl~- and SO_4~(2-), and total salt content in soil were determined. The results indicated that under irrigation conditions, biomass of S. europaea and S. salsa was 11 044.37 kg·hm~(-2) and 19 119.26 kg·hm~(-2) respectively, and ash-free salt content of above-ground plant parts was 4 709.98 kg·hm~(-2) and 5 184.96 kg·hm~(-2), respectively. After harvest, total salt content in 0-30 cm soil layer of treatment of S. europaea, S. salsa and the bare land decreased by 55.62%, 32.98% and 20.79%, respectively; and that in 30-60 cm soil layer of treatment of S. europaea, S. salsa decreased by 21.82% and 29.16% respectively, while the control increased by 18.31%. S. europaea and S. salsa showed strong uptake capacity to Na~+, Cl~- and SO_4~(2-), especially for Cl~-. Although the content of SO_4~(2-) in both plants was equal, the content of Na+ and Cl~- in S. europaea was 2.33 times and 2.22 times that in S. salsa, respectively. The ability of S europaea to accumulate more Na+ and Cl~- made it a better choice for reducing chloride salt in soil. Our study suggested that planting salt-resistant plants could have significant desalination effects on soil in newly cultivated land in a saline desert.
中文关键词	盐渍土 ; 盐角草(Salicornia europaea) ; 盐地碱蓬(Suaeda salsa) ; 土壤脱盐
英文关键词	saline soil Salicornia europaea Suaeda salsa soil desalination
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4927350
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230659
作者单位	中国科学院新疆生态与地理研究所, 荒漠与绿洲生态国家重点实验室, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	赵振勇,张科,王雷,等. 盐生植物对重盐渍土脱盐效果[J]. 中国科学院新疆生态与地理研究所,2013,33(5):1420-1425.
APA	赵振勇,张科,王雷,王平,&田长彦.(2013).盐生植物对重盐渍土脱盐效果.中国沙漠,33(5),1420-1425.
MLA	赵振勇,et al."盐生植物对重盐渍土脱盐效果".中国沙漠 33.5(2013):1420-1425.