平茬措施对柠条生长和土壤水分的影响研究
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摘要
选择完整坡面成熟柠条林布设不同平茬措施的试验样地,2016~2017年连续对林地土壤水分和灌丛生长情况开展调查,对不同平茬措施林地土壤水分和植丛生长的差异性进行分析研究。结果表明:隔行平茬萌蘖、生长优于隔丛和隔丛隔行平茬;柠条平茬初期对减缓土壤水分消耗具有明显的效果,且隔行和隔行+隔丛平茬这种效果更为明显;半干旱黄土区柠条林长期在土壤水分亏缺状态下维持生长,仅凭平茬措施无法彻底解决人工柠条林土壤水分亏缺状态。
Different stubble tests were arranged in mature Caragana intermedia woodland on complete slope, continuous investigation of soil moisture and shrub growth in woodland was conducted from 2016 to 2017, the difference of soil water content and tufted growth in woodland under different stubble measures was analyzed and studied. The results showed that the tillering and growth of stumping based on interlaced every line was better than that interlaced every clump and every column. Stubble had a significant effect on reducing soil water consumption at the initial stage, and the effect was more obvious on interlaced every line and interlaced every line +every clump. Caragana intermedia forest in semi-arid loess area maintained its growth under the condition of soil water deficit for a long time, soil water deficiency of artificial Caragana intermedia forest could not be completely solved by means of stubble control.
Different stubble tests were arranged in mature Caragana intermedia woodland on complete slope, continuous investigation of soil moisture and shrub growth in woodland was conducted from 2016 to 2017, the difference of soil water content and tufted growth in woodland under different stubble measures was analyzed and studied. The results showed that the tillering and growth of stumping based on interlaced every line was better than that interlaced every clump and every column. Stubble had a significant effect on reducing soil water consumption at the initial stage, and the effect was more obvious on interlaced every line and interlaced every line +every clump. Caragana intermedia forest in semi-arid loess area maintained its growth under the condition of soil water deficit for a long time, soil water deficiency of artificial Caragana intermedia forest could not be completely solved by means of stubble control.
引文
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[4]王丽莉.柠条平茬复壮更新技术研究[J].现代农业科技,2013(8):156-157.
[5]狄曙玲.柠条平茬复壮原理与技术探讨[J].山西林业,2015(5):33-34.
[6]周静静,马红彬,周瑶,蔡育荣,吴兴旺,宿婷婷,贾希洋.荒漠草原不同带间距人工柠条林平茬对林间生境的影响[J].草业学报,2017,26(5):40-50.
[7]李耀林,郭忠升.平茬对半干旱黄土丘陵区柠条林地土壤水分的影响[J].生态学报,2011,31(10):2727-2736.