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首页> 外文期刊>International Soil and Water Conservation Research >Farming methods impact on soil and water conservation efficiency under tea [ Camellia sinensis (L.)] plantation in Nilgiris of South India
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Farming methods impact on soil and water conservation efficiency under tea [ Camellia sinensis (L.)] plantation in Nilgiris of South India

机译:耕作方式对印度南部尼尔吉里斯茶[茶树]人工林下水土保持效率的影响

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Abstract Growing of tea on sloping land without any soil and water conservation measures causes enormous soil loss especially in the initial years. For sound soil and water conservation planning, there is a need to evaluate the various conservation measures as related to the amount of expected runoff and soil erosion. In this context, a field study was conducted in the farmer's field in Nilgiris of South India, for evaluating the impact of farming methods on soil and water conservation efficiency under new tea plantation. One year old B-6 tea clones were planted at double hedge spacing (135 cm×75 cm×75 cm) in two slopes (8–12% and 30–35%) with treatments viz., contour staggered trenches (CST), vegetative barrier (VB), {CST} alternate with VB, {CST} with cover crop of beans and farmers’ practice of plantation. Minimum runoff (14.6%) was observed from {CST} with cover crop of beans followed by {CST} (15.4%) under 8–12% slope range with exactly similar trend in runoff from the plots under 30–35% slope. Contrary to runoff, minimum soil loss was observed from {CST} (4.9 and 6.9 t ha?1 yr?1) followed by {CST} with cover crop of beans (5.3 and 7.3 t ha?1 yr?1) under 8–12% and 30–35% respectively. Implementation {CST} and {CST} with cover crop of beans are resulted in better soil moisture under both the slope ranges in comparison to remaining measures as well as farmers’ practice of plantation. Therefore, either {CST} alone or in combination with cover crop of beans are recommended for soil and water conservation under new tea plantation in the hill slopes.
机译:摘要在没有任何水土保持措施的坡地上种植茶会造成巨大的土壤流失,尤其是在最初的几年。为了制定合理的水土保持计划,需要评估与预期径流量和土壤侵蚀量有关的各种保护措施。在这种情况下,在印度南部的尼尔吉里斯(Nilgiris)的一个农民田间进行了田野研究,以评估新茶园下耕作方法对水土保持效率的影响。将一岁的B-6茶树以双树篱间距(135 cm×75 cm×75 cm)种植在两个坡度(8–12%和30–35%)上,其处理方式为等高线交错沟槽(CST),营养障碍(VB),{CST}与VB,{CST}交替出现,包括豆类作物和农民的种植习惯。从{CST}覆盖的豆类作物中观察到最小径流(14.6%),其次是在8-12%坡度范围内的{CST}(15.4%),坡度在30-35%以下的地块的径流趋势完全相似。与径流相反,{CST}(4.9和6.9 t ha?1 yr?1)和随后的{CST}覆盖在8-8以下的豆类作物(5.3和7.3 t ha?1 yr?1)的土壤流失最小。分别为12%和30–35%。与其余措施以及农民的种植习惯相比,实施{CST}和{CST}的豆类作物在坡度范围内均能提高土壤湿度。因此,建议在山坡上的新茶园中单独使用{CST}或与豆类作物结合使用以保护水土。

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