植被覆蓋、放牧和季節(jié)對(duì)牧草種類組成和生物量的影響:以埃塞俄比亞南部Yabello牧場(chǎng)為例(英文)
發(fā)布時(shí)間:2021-08-17 06:59
Yabello牧場(chǎng)是埃塞俄比亞博拉納的一個(gè)半干旱地區(qū)的牧場(chǎng),目前面臨著草場(chǎng)退化的嚴(yán)重挑戰(zhàn)。植被覆蓋的變化、過度放牧和季節(jié)性變化極大地影響了Yabello牧場(chǎng)的牧草組成和生物量。本文評(píng)估了植被覆蓋、放牧和季節(jié)對(duì)Yabello牧場(chǎng)的牧草組成和生物量的影響。首先采用1 m×1 m的隨機(jī)樣方進(jìn)行實(shí)驗(yàn),根據(jù)植被覆蓋類型和放牧變化選擇樣點(diǎn),并對(duì)季節(jié)影響進(jìn)行評(píng)估。使用SAS統(tǒng)計(jì)軟件和MicrosoftExcel分析牧草組成、牧草高度和質(zhì)量數(shù)據(jù)。本研究總共記錄了26種草種,其中Chloris roxburghiana, Chrysopogon aucheri和Chrysopogon aucheri草種均表現(xiàn)出最高的平均單種覆蓋高度和生物量產(chǎn)量。因此,建議將這些草種用于研究區(qū)域退化草地的恢復(fù)。研究結(jié)果還表明,植被覆蓋類型、放牧和季節(jié)變化是決定牧草種類組成、牧草高度和生物量產(chǎn)量的關(guān)鍵因素。最后,研究結(jié)論還認(rèn)為控制灌木叢植被并平衡放牧水平的可持續(xù)管理對(duì)于該地區(qū)的可持續(xù)牧草生產(chǎn)和生物多樣性保護(hù)至關(guān)重要。
【文章來源】:Journal of Resources and Ecology. 2020,11(02)CSCD
【文章頁數(shù)】:12 頁
【文章目錄】:
1 Introduction
2 Materials and methods
2.1 Description of the study area
2.2 Research procedure and design
2.3 Species composition and herbage mass sample collection
2.4 Data analysis
3 Results
3.1 Herbage species composition
3.2 Effects of vegetation cover types,grazing and season on species composition
3.3 Effect of vegetation cover types,grazing and season on herbage species heights
3.4 Effects of vegetation cover type,grazing and season on herbage mass production
4 Conclusions
本文編號(hào):3347301
【文章來源】:Journal of Resources and Ecology. 2020,11(02)CSCD
【文章頁數(shù)】:12 頁
【文章目錄】:
1 Introduction
2 Materials and methods
2.1 Description of the study area
2.2 Research procedure and design
2.3 Species composition and herbage mass sample collection
2.4 Data analysis
3 Results
3.1 Herbage species composition
3.2 Effects of vegetation cover types,grazing and season on species composition
3.3 Effect of vegetation cover types,grazing and season on herbage species heights
3.4 Effects of vegetation cover type,grazing and season on herbage mass production
4 Conclusions
本文編號(hào):3347301
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