Distribution and dynamics of the Cynodon dactylon invasion to the cultivated fields of pearl millet in north-central Namibia

被引：4

作者：

Teshirogi, Koki ^{[1
]}

Kanno, Miho ^{[2
]}

Shinjo, Hitoshi ^{[3
]}

Uchida, Satoshi ^{[4
]}

Tanaka, Ueru ^{[5
]}

机构：

[1] Setsunan Univ, Fac Int Studies, 17-8 Ikeda Nakamachi, Neyagawa, Osaka 5728508, Japan

[2] Sanyu Consultants Inc, Toshima Ku, 1-13-17 Kita Otsuka, Tokyo 1700004, Japan

[3] Kyoto Univ, Grad Sch Global Environm Studies, Sakyo Ku, Yoshida Honmachi, Kyoto 6068501, Japan

[4] Japan Int Res Ctr Agr Sci, 1-1 Ohwashi, Tsukuba, Ibaraki 3058686, Japan

[5] Setsunan Univ, Fac Agr, 45-1 Nagaotouge Cho, Hirakata, Osaka 5740101, Japan

来源：

JOURNAL OF ARID ENVIRONMENTS | 2022年 / 205卷

基金：

日本学术振兴会;

关键词：

Indigenous land units; Weed distribution; Land use; Subsistence agriculture; TILLAGE;

D O I：

10.1016/j.jaridenv.2022.104820

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

In north-central Namibia, pearl millet cultivation is critical for the subsistence of the local people. In recent years, pearl millet cultivation affected by Cynodon dactylon has been observed in the area. In this study, we examined the background and impact of C. dactylon on agriculture in this region. Our study showed that there would be almost no pearl millet harvest if C. dactylon dominated the fields. The distribution of C. dactylon was spatially skewed within the region, and the degree of weed damage varied between households. Analysis of the distribution of C. dactylon and the land characteristics of each household revealed that the indigenous land unit and the year in which the local people migrated were influential factors. The expansion of C. dactylon is an agronomic problem and is affected by several factors, including the human community structure, diversity of the natural environment, and recent social changes.

引用

页数：8

共 5 条

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[5] Datasets on agromorphological characters and distribution of cassava (Manihot esculenta L.) accessions cultivated in South-West and North-Central regions of Nigeria
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