Effects of Mowing Frequency on Biomass Allocation and Yield of Leymus chinensis

分蘖(植物学) 赖草 生物量(生态学) 农学 茎叶展示 生物 野外试验 产量(工程) 动物科学 草原 材料科学 冶金
作者
Chengzhen Zhao,Guangdi Li,Qiang Li,Daowei Zhou
出处
期刊:Rangeland Ecology & Management [Elsevier BV]
卷期号:83: 102-111 被引量:9
标识
DOI:10.1016/j.rama.2022.03.010
摘要

The effect of mowing frequency on cumulative dry matter yield (cDMY) in Leymus chinensis has been well studied. However, how biomass and nitrogen or phosphorus allocation among leaf, stem, and sheath of L. chinensis contribute to its cDMY under different mowing frequencies remains unclear. A 2-yr field experiment with five mowing frequencies was conducted to study effects of mowing frequency on biomass allocation and yield of L. chinensis. The mowing frequency treatments were extremely heavy mowing, heavy mowing, moderate mowing (MM), and light mowing (LM) in contrast with single mowing as the control (CK). In general, as mowing frequency increased, the cDMY of L. chinensis decreased (P < 0.05). The cDMY on the MM and LM treatments was equal or greater than that on the CK treatment in both years. Leaf biomass and leaf-to–individual tiller ratio of L. chinensis decreased as mowing frequency increased due to shorter recovery time, although the N and P concentrations of leaves were higher. The leaf-to–individual tiller ratio increased exponentially (P < 0.001), while the cDMY increased linearly (P < 0.001) with increased leaf biomass. Furthermore, stem and sheath biomass of L. chinensis were significantly lower in all mowing frequency treatments (P < 0.05) compared with the CK treatment, but no changes were observed in stem and sheath between mowing frequency treatments in both years. Our results reveal that leaf biomass primarily contributed the most to cDMY, and increased mowing frequency profoundly altered the biomass allocation among leaf, stem, and sheath. It is recommended that MM or LM be optimal to efficiently promote dry matter yield and maintain root biomass of L. chinensis.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
我是老大应助李李李er采纳,获得10
1秒前
来来来发布了新的文献求助10
1秒前
hodge发布了新的文献求助10
3秒前
dudupig完成签到,获得积分10
4秒前
fantastic完成签到,获得积分10
4秒前
5秒前
5秒前
shinysparrow应助Eig采纳,获得100
5秒前
6秒前
科研通AI2S应助ppapppap采纳,获得10
7秒前
wxr发布了新的文献求助10
7秒前
852应助义气的灯泡采纳,获得10
7秒前
鲸鱼发布了新的文献求助10
8秒前
孙成成完成签到 ,获得积分10
8秒前
沉默念蕾发布了新的文献求助10
8秒前
8秒前
dudupig发布了新的文献求助30
9秒前
李健的小迷弟应助金先生采纳,获得10
9秒前
量子星尘发布了新的文献求助10
9秒前
叫我少爷完成签到 ,获得积分10
10秒前
zwh完成签到,获得积分10
11秒前
11秒前
12秒前
amupf完成签到 ,获得积分10
12秒前
WLL完成签到,获得积分10
14秒前
14秒前
香蕉觅云应助Amanda采纳,获得10
14秒前
17秒前
17秒前
苏苏发布了新的文献求助10
17秒前
17秒前
wxr完成签到 ,获得积分10
18秒前
FashionBoy应助malus采纳,获得10
19秒前
宇宙的中心完成签到,获得积分10
20秒前
西西完成签到,获得积分10
20秒前
22秒前
百里一一发布了新的文献求助10
24秒前
FartKing完成签到,获得积分10
24秒前
siijjfjjf完成签到 ,获得积分10
25秒前
烟雨江南完成签到,获得积分10
26秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Effective Learning and Mental Wellbeing 300
The Moiseyev Dance Company Tours America: "Wholesome" Comfort during a Cold War 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3974015
求助须知:如何正确求助?哪些是违规求助? 3518175
关于积分的说明 11193391
捐赠科研通 3254377
什么是DOI,文献DOI怎么找? 1797114
邀请新用户注册赠送积分活动 876822
科研通“疑难数据库(出版商)”最低求助积分说明 806034