干旱区生态环境知识资源中心(Arid): 海水养殖废水灌溉条件下山东滨海盐土溶质迁移及其平衡研究

Arid

	海水养殖废水灌溉条件下山东滨海盐土溶质迁移及其平衡研究
其他题名	Solute Movement and Balance on Shangdong Coastal Saline Soil under Mariculture Wasterwater Irrigation
	赵耕毛; 刘兆普; 陈铭达; 寇伟锋
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2005
卷号	19 期号:3 页码:80-82,109
中文摘要	在半干旱的山东莱州地区,利用小型蒸渗装置研究海水养殖废水灌溉下滨海盐土溶质迁移特征以及溶质平衡.结果表明:在耐盐作物-菊芋的水分临界期(6月初)和水分最大效率期(9月初)海水养殖废水灌溉两次,根区土壤中的盐分对于不同淋洗分数的处理分别增加了89.78,92.35,96.10和102.85g,部分盐分被淋出土体,淋洗效率分别达到17.3%,24.4%,31.1%和36.8%.海水养殖废水灌溉后,土壤中的养分如硝态氮、氨态氮和活性磷酸盐均有所增加,其迁移能力分别为硝态氮＞活性磷酸盐＞氨态氮,说明硝态氮极易淋失.在选择较小淋洗分数(0.1和0.2)的情况下,大部分的氨态氮和活性磷酸盐被保留在土壤中成为作物的有效养分.此外,大强度的降雨对盐分的淋洗也起到关键性的作用,但也会导致养分的淋失.因此,适时适宜矿化度的海水养殖废水结合适当的淋洗分数补充灌溉耐盐植物,有效地增加了土壤养分,而盐分不会过量累积.
英文摘要	In semi-arid area of Laizhou(Shandong province), fifteen lesimeters were used to study solute movement and balance on Shandong coastal saline soil under mariculture wasterwater irrigation. There are five treat-ments in this experiment) i. e, CK(non-irrigated) and the treatments of leaching fraction(LF) being 0.1, 0. 2, 0. 3 and 0. 4- The results showed that, total desolved salts (TDS) at root zone for the treatments of leaching fraction being 0. 1, 0. 2. 0. 3 and 0. 4 increased by 89. 78,92. 35,96. 10 and 102. 85 g, respectively, when irrigated two times during the key developing stages of Helianthus tuberosus L. Some were leached blow the root zone and leaching proficiency reached 17- "i"/^, 24- 4% ,31-1% and 36. 8% respectively. After mariculture wastewater irri-gation, nutrients such as nitrate, ammonium and reactive phosphorus, increased at root zone. Amounts of nutri-ents being retained at root zone were different due to the differences of the movement abilities among the three so-lutes. Nitrate was apt to leaching blow the root zone, however, ammonium and reactive phosphorus be retained. Additionally, heavy rain helped to leach the soluble salts out of the root zone, but the nutrients were also being leached. Therefore, we concluded using mariculture wastewater to irrigate salt-tolerant crop could increase soil nu-trients, while the total desolved salts would not be excessively accumulated.
中文关键词	海水养殖废水 ; 滨海盐土 ; 淋洗分数 ; 溶质平衡
英文关键词	mariculture wastewater coastal saline soil leaching fraction solute movement and balance
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:1988944
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206643
作者单位	南京农业大学,资源与环境科学学院, 南京, 江苏 210095, 中国
推荐引用方式 GB/T 7714	赵耕毛,刘兆普,陈铭达,等. 海水养殖废水灌溉条件下山东滨海盐土溶质迁移及其平衡研究[J],2005,19(3):80-82,109.
APA	赵耕毛,刘兆普,陈铭达,&寇伟锋.(2005).海水养殖废水灌溉条件下山东滨海盐土溶质迁移及其平衡研究.水土保持学报,19(3),80-82,109.
MLA	赵耕毛,et al."海水养殖废水灌溉条件下山东滨海盐土溶质迁移及其平衡研究".水土保持学报 19.3(2005):80-82,109.