Arid
果园垄膜覆盖对土壤微生物量碳氮及土壤呼吸的影响
其他题名Effect of the Ridge Film Mulching on Soil Microbial Biomass Carbon and Nitrogen and Soil Basal Respiration in Dryland Apple Orchard
张帆; 王晨冰; 赵秀梅; 王发林
来源期刊核农学报
ISSN1000-8551
出版年2018
卷号32期号:7页码:1448-1455
中文摘要为探究旱地果园在长期垄膜不同覆盖方式下土壤微生物量碳、氮,土壤呼吸的变化及其与土壤养分的关系,在具有17年成龄的天王1号苹果园进行4年田间定位试验,共设3个处理,即垄膜全年覆盖(PFM) 、3 - 6月底覆盖(JM,2月底覆膜,6月底揭膜)和清耕(对照,CK) 。结果表明,0 ~ 30 cm土层3种处理的土壤养分含量明显高于30 ~ 60 cm土层。0 ~ 30 cm土层,与CK相比,PFM和JM处理的土壤养分含量均有所提高,且JM处理的土壤有机质、碱解氮含量分别较PFM高20.6 %和15.2%,而有效磷、速效钾则减少7.8%和9.7%; 30 ~ 60 cm土层,处理间土壤养分含量变化不大。随着处理时间的延长,PFM和JM处理下的土壤微生物量碳、氮含量以及微生物熵均发生变化。其中,0 ~ 30 cm和30 ~ 60 cm土层在JM处理下,其土壤微生物量碳、氮含量均明显高于PFM处理,分别为7.6%和5.3%,而微生物熵则有所下降; 0 ~ 30 cm土层,3种处理的土壤呼吸强度和微生物代谢熵在整个试验期变幅显著高于30 ~ 60 cm土层,且处理间差异显著(P < 0.01) 。综上,长期地膜覆盖能够显著提高0 ~ 30 cm土层土壤养分、微生物量碳、氮含量和物质间的转化速度,以JM处理对提高苹果园土壤肥力效果更为明显。苹果园2月底覆膜6月底揭膜可作为半干旱黄土高原雨养农业区科学有效的果园管理栽培模式。本研究为西北干旱雨养区苹果园土壤管理提供了理论基础。
英文摘要To explore effects of the different long-term ridge film mulching ways on variation of microbial biomass carbon, nitrogen and soil respiration,and the relationship of soil nutrient,a 4-year located experimental was conducted in17 years apple orchard planted with apple trees (tianwang NO. 1) . Three film mulching ways (PFM (plastic film mulching for whole year) ,JM (mulch in late February and uncovered the film in late June) and CK (clean tillage) were designed to study soil nutrient,soil microbial biomass carbon,soil microbial biomass nitrogen and soil basal respiration on different soil layer (0 to 30 cm and 30 to 60 cm) . The results showed that under tree film mulching conditions,soil main nutrient contents in 0 to 30 cm soil layerwere significantly higher than those in 30 to 60 cm. In 0 to 30 cm soil layer,compared with CK,PFM and JM significantly improved the soil nutrient contents,and compared with PFM treatment,the contents of soil organic matter and alkali-hydrolyzable nitrogen treated with JM were increased by 20.6% and 15.2%,respectively. While the content of available phosphorus and available potassium were decreased by 7.8% and 9.7%,respectively. In 30 - 60 cm soil layer,the variation of soil nutrients was not significant,and the differences were not significant among 3 treatments each year. With the extension of treating time,the amount of carbon,nitrogen and microbial quotient under PFM and JM treatments were changed. Whether in 0 to 30 cm layer or in 30 to 60 cm layer,the content of soil microbial carbon and nitrogen was significant higher in JM treatment than those in PFM, increasing by 7.6% and 5.3%,respectively,but microbial quotient decreased. During the whole trial period, amplitude of variations of soil respiration and microbial metabolism in 0 to 30 cm were significantly higher than those in 30 to 60 cm,and there were significant differences among 3 treatments (P < 0.01) . Conclusively,long-term plastic film mulching could significantly improve the conversion rate between the soil nutrient,the amount of microbial biomass carbon,nitrogen,microorganism and soil organic matter of apple orchard,and the JM treatment showed the best in improving the soil fertility of apple orchard. Moreover,the ridge film mulching in late February and uncovered the film in late June could be used as a semi-arid rainy farming area scientific and rational management of fruit orchard cultivation mode. The study provide theoretical basis for semi-arid rainy farming area management of fruit orchard.
中文关键词苹果园 ; 垄膜覆盖 ; 土壤微生物量碳 ; 土壤微生物量氮 ; 土壤呼吸
英文关键词apple orchard the ridge film mulching soil microbial biomass carbon soil microbial biomass nitrogen soil basal respiration
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:6261953
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/237822
作者单位甘肃省农业科学院林果花卉研究所, 兰州, 甘肃 730070, 中国
推荐引用方式
GB/T 7714
张帆,王晨冰,赵秀梅,等. 果园垄膜覆盖对土壤微生物量碳氮及土壤呼吸的影响[J],2018,32(7):1448-1455.
APA 张帆,王晨冰,赵秀梅,&王发林.(2018).果园垄膜覆盖对土壤微生物量碳氮及土壤呼吸的影响.核农学报,32(7),1448-1455.
MLA 张帆,et al."果园垄膜覆盖对土壤微生物量碳氮及土壤呼吸的影响".核农学报 32.7(2018):1448-1455.
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