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Effect of different planting manners on soil run- off of the slope land in young tea garden during raining season and surviving rate of tea seedlings
Author(s): 
Pages: 15-16
Year: Issue:  3
Journal: TEA IN FUJIAN

Keyword:  种植方式坡地幼龄茶园土壤流失茶苗成活率;
Abstract: 通过对黔北湄潭地区不同种植方式的坡地幼龄茶园雨季土壤流失与茶苗成活状况调查分析,表明顺坡幼龄茶园土壤流失量大(0.680~4.310t/667m2),茶苗成活率较低(平均值60.38%);等高幼龄茶园基本无土壤流失,在7~9月连续干旱的不利气候下,茶苗成活率较高(82.94%~87.26%);坡度越大,坡越长的顺坡幼龄茶园,土壤流失越严重,茶苗成活率越低(25°~35°、30~40m、3.930~4.310t/667m2、30%~55.80%);行间有效覆盖的顺坡幼龄茶园,基本无土壤流失,茶苗成活率高(达90.0%).其中,土壤流失量与坡度呈明显正相关(y=-0.9788+0.1492x,r=0.8239),茶苗成活率与坡度呈明显负相关(y=88.5639-1.5411x,r=-0.8386),与土壤流失量亦呈明显负相关(y=75.6316-7.7502x,r=-0.7310).
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