干旱区生态环境知识资源中心(Arid): 不同覆盖措施对枸杞根系生长和土壤环境的影响

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	不同覆盖措施对枸杞根系生长和土壤环境的影响
其他题名	Effects of mulching patterns on root growth and soil environment of Lycium barbarum
	胥生荣; 张恩和; 马瑞丽; 王琦; 刘青林; 王鹤龄
来源期刊	中国生态农业学报
ISSN	1671-3990
出版年	2018
卷号	26 期号:12 页码:1802-1810
中文摘要	耐旱枸杞是西北干旱地区重要的经济作物,为了进一步了解不同覆盖时间和覆盖材料对枸杞土壤环境和水分利用的影响,为枸杞抗旱节水栽培与水分高效利用研究提供理论依据,以3年生’宁杞1号’为试验材料,研究了秸秆和地膜在春季和秋季进行覆盖后,枸杞根系生理特性和分布、土壤储水量和温度等根系和土壤环境的变化规律。结果表明:地膜和秸秆覆盖都可以提高土壤储水量,秋季覆盖更有利于冬季水分储存,使土壤储水量在早春分别增大到裸地对照的117.1%和114.4%;地膜和秸秆秋季覆盖使土壤平均温度比裸地对照高18.0%和7.1%,春季覆盖使平均温度比裸地对照分别高6.4%和2.3%;不同覆盖处理均可以增大根系比导率年平均值,秋季覆膜比导率变化最显著,达裸地对照的109.95%,春季覆秸秆比导率变化最小,仅为裸地对照的100.3%;覆盖处理在低温季节可以使根系活力升高,而在高温季节可以使根系活力降低;根冠比在秋季和春季覆膜后变化最显著,分别为裸地对照的87.42%和90.35%;表层0~20 cm和水平距离40~60 cm处,细根分布比例最大的均为秋季覆膜,分别达裸地对照的133.5%和116.7%,细根分布比例最小的均为春季秸秆覆盖。综合分析表明,覆盖模式与植株根系的生长、分布和土壤水分状况密切相关,使土壤环境和根系分布发生变化,更有利于利用土壤浅层和横向较远处的水分和营养物质。
英文摘要	Lycium barbarum is the main commercial crop across arid lands in northwestern China.In order to further understand the effects of different mulching patterns on root growth and soil environment,a mulching experiment was conducted at the Agricultural Demonstration Site in Gulang,Gansu Province (37.30°N,103.29°E).The experiment consisted of four treatments-plastic film mulching from spring of the second year (PMs),plastic film mulching from autumn of the first year (PMa),stalk mulching from spring of the second year (SMs) and stalk mulching from autumn of the first year (SMa).Root physiological characteristics and distribution,soil water storage and temperature of three-year-old plants of ’Ningqi 1’ L.barbarum were studied.The results showed that both plastic film mulching and straw mulching improved soil water storage,and autumn mulching was better for winter soil water storage,which increased to 117.1% and 114.4% of that of CK (no mulching),respectively,in the next early spring.PMa and SMa respectively increased average temperature of soil by 18.0% and 7.1%,while PMs and SMs increased average temperature of soil by 6.4% and 2.3%,compared with CK.Both plastic film mulching and straw mulching improved annual specific conductivity of root,and the change in specific conductivity was most significant under PMa,reaching 109.95% of CK.Also change in specific conductivity was smallest in FMs,100.3% of CK.While mulching treatment increased root activity in low temperature seasons,it decreased root activity in high temperature seasons.Change in root/shoot ratio was most significantly under plastic film mulching,with PMa and PMs values of 87.42% and 90.35% of that of CK,respectively.Within 0-20 cm soil layer and 40-60 cm horizontally around the plants,the largest proportion of fine roots was under PMa (reaching respectively 133.5% and 116.7% of CK) and the smallest proportion was under FMs.It suggested that mulching pattern was closely related with root growth and distribution.Also soil moisture changed soil environment and root distribution.Mulching was good for water and nutrient utilization in shallow soils and in horizontal far from Lycium barbarum.
中文关键词	枸杞 ; 覆盖材料 ; 覆盖季节 ; 根系 ; 土壤环境 ; 水分利用率 ; 根系比导率 ; 根系活力
英文关键词	Lycium barbarum Mulching materials Mulching time Root system Soil environment Water use efficiency Root specific conductivity Root activity
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6379019
来源机构	甘肃农业大学 ; 中国气象局兰州干旱气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238826
作者单位	胥生荣, 甘肃农业大学农学院, 兰州, 甘肃 730070, 中国.; 张恩和, 甘肃农业大学农学院, 兰州, 甘肃 730070, 中国.; 马瑞丽, 甘肃农业大学农学院, 兰州, 甘肃 730070, 中国.; 刘青林, 甘肃农业大学农学院, 兰州, 甘肃 730070, 中国.; 王琦, 甘肃农业大学草业学院, 兰州, 甘肃 730070, 中国.; 王鹤龄, 中国气象局兰州干旱气象研究所, 中国气象局干旱气候变化重点开放实验室/甘肃省干旱气候变化与减灾重点实验室, 兰州, 甘肃 730020, 中国.
推荐引用方式 GB/T 7714	胥生荣,张恩和,马瑞丽,等. 不同覆盖措施对枸杞根系生长和土壤环境的影响[J]. 甘肃农业大学, 中国气象局兰州干旱气象研究所,2018,26(12):1802-1810.
APA	胥生荣,张恩和,马瑞丽,王琦,刘青林,&王鹤龄.(2018).不同覆盖措施对枸杞根系生长和土壤环境的影响.中国生态农业学报,26(12),1802-1810.
MLA	胥生荣,et al."不同覆盖措施对枸杞根系生长和土壤环境的影响".中国生态农业学报 26.12(2018):1802-1810.