[1]黄圣杰,陈俊朴,陈 涛,等.不同覆盖模式对樱桃园土壤团聚体及碳氮的影响[J].水土保持研究,2022,29(01):44-50.
　HUANG Shengjie,CHEN Junpu,CHEN Tao,et al.Effects of Different Coverage Modes on Aggregates and Carbon and Nitrogen of Soil in Cherry Orchard[J].Research of Soil and Water Conservation,2022,29(01):44-50.
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不同覆盖模式对樱桃园土壤团聚体及碳氮的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 29 期数: 2022年01期 页码: 44-50 栏目: 出版日期: 2022-02-20
Title:
Effects of Different Coverage Modes on Aggregates and Carbon and Nitrogen of Soil in Cherry Orchard
文章编号:
1005-3409(2022)01-0044-07
作者:
黄圣杰1, 陈俊朴1, 陈 涛2, 方从刚3, 黄成毅1,4
(1.四川农业大学 水利水电学院, 四川 雅安 625014; 2.四川农业大学 生命科学学院, 四川 雅安 625014; 3.成都市国土资源信息中心, 成都 610041; 4.四川农业大学 环境学院, 成都 611130)
Author(s):
HUANG Shengjie1, CHEN Junpu1, CHEN Tao2, FANG Conggang3, HUANG Chengyi1,4
(1.College of Water Resources and Hydropower, Sichuan Agricultural University, Ya'an, Sichuan 625014, China; 2.College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China; 3.Chengdu Land and Resources Information Center, Chengdu 610041, China; 4.College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China)
关键词:
团聚体;  稳定性;  覆盖模式;  有机碳;  全氮
Keywords:
aggregate;  stability;  coverage modes;  organic carbon;  total nitrogen
分类号:
S152.4; S153.6
文献标志码:
A
摘要:
为探究不同覆盖模式对土壤团聚体及其碳氮的影响,以新津县樱桃园土壤为研究对象,采用定位试验,设置清耕(CK)、自然生草覆盖(NGC)、野豌豆覆盖(VC)和地布覆盖(GCM)4个处理,对土壤团聚体分布、大团聚体含量(R0.25)、平均重量直径(MWD)、几何平均直径(GMD)、团聚体破坏率(PAD)和不稳定团粒指数(Elt)及水稳性团聚体有机碳、全氮进行了测定与分析。结果表明:自然生草覆盖、野豌豆覆盖、地布覆盖和清耕在0—10 cm和10—20 cm土层的机械稳定性团聚体分布均以>5 mm团聚体含量最高,而水稳性团聚体分布以>5 mm和5～2 mm含量较高。在两个土层中,自然生草覆盖、野豌豆覆盖和地布覆盖与清耕相比,均提高了R0.25,MWD,GMD,降低了PAD和Elt,同时提高了水稳性团聚体有机碳、全氮含量。有机碳提升效果以自然生草覆盖处理最好,而全氮提升效果以野豌豆覆盖处理最好。综上,覆盖处理能够提高土壤团聚体稳定性以及水稳性团聚体有机碳、全氮含量,改善土壤质量。
Abstract:
In order to research the effects of different coverage modes on soil aggregates and carbon and nitrogen, the soil samples in the cherry orchard were taken in Xinjin County, and positioning experiment was adopted. Four treatments such as clean tillage(CK), natural grass coverage(NGC), vetch coverage(VC)and ground cloth coverage(GCM)were set up. Distribution of soil aggregates, large aggregates content(R0.25), mean weight diameter(MWD), geometric mean diameter(GMD), percentage of aggregate destruction(PAD)and unstable aggregate index(Elt), as well as organic carbon and total nitrogen in water-stable aggregates were tested and analyzed. The results showed that: contents of >5 mm mechanically stable aggregates in the 0—10 cm and 10—20 cm soil layers of natural grass coverage, vetch coverage, ground cloth coverage and clean tillage are the highest, while the contents of >5 mm and 5～2 mm water-stable aggregates are higher; in the two soil layers, compared with clean tillage, natural grass coverage, vetch coverage and ground cloth coverage increase R0.25, MWD, GMD and decrease PAD and Elt, increase the organic carbon and total nitrogen contents in water-stable aggregates; the best result of organic carbon improvement was natural grass coverage, the best result of total nitrogen improvement was vetch coverage. In summary, coverage treatments can increase the stability of soil aggregates, the organic carbon and total nitrogen contents of water-stable aggregates, as well as improve soil quality.

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备注/Memo

收稿日期:2021-01-31 修回日期:2021-02-24
资助项目:国家自然科学基金青年项目(31801826); 四川省科技计划应用基础研究项目(2015JY0059)
第一作者:黄圣杰(1995—),男,安徽合肥人,硕士生,主要从事农业水土资源与环境研究。E-mail:2893691145@qq.com
通信作者:黄成毅(1983—),男,四川成都人,博士,副研究员,主要从事土壤改良与土壤环境管理研究。E-mail:chengyihuang@sicau.edu.cn

更新日期/Last Update: 2022-02-20