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首页> 外文期刊>Indonesian Journal of Forestry Research >ENHANCING THE PRODUCTIVITY OF DEGRADED LAND THROUGH SOIL AND WATER CONSERVATION TECHNIQUE IN CARITA RESEARCH FOREST, WEST JAVA
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ENHANCING THE PRODUCTIVITY OF DEGRADED LAND THROUGH SOIL AND WATER CONSERVATION TECHNIQUE IN CARITA RESEARCH FOREST, WEST JAVA

机译：西爪哇省明爱研究林地通过水土保持技术提高土地退化生产力

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Encroachments on Carita Research Forest area have exacerbated the degradation of land due to uncontrolled runoff, erosion and nutrient losses especially on the sloping land with high annual rainfall. To reduce the severity of the degradation the area should be rehabilitated by applying soil and water conservation techniques. The techniques used were the vegetative methods (culture), and a combination of it with mechanical/technical methods. The combination method is expected to be more effective in controlling runoff, erosion and nutrient losses. One important parameter is the efficiency of the distance of the vertical mulch channel, which affects the application cost. This study was aimed to determine the effect of different distances of vertical mulch channels on the plant growth and annual crop yield as well as its effectiveness in controlling runoff, erosion and nutrient losses. The research was conducted in Carita Research Forest from 2005 to 2008, using the randomized block design. Treatments applied were: vertical mulch with six and twelve meter distances of plots of khaya (Khaya anthotheca C.Dc.) and corn ( Zea mays L.) cropping system. Observations included height and diameter growth of khaya, runoff and erosion, and cost per ha. The results showed that six meter of vertical mulch was the most efficient distance. The height and diameter of khaya tree increased by 7% and 31% in six meter distance compared to the control. Moreover, runoff and erosion was reduced by 75% and 37%, and nutrient losses could be trimmed down by three to five times. In addition, six meters distance could also produce corn of 712 kg/ha/year, which was 73% greater than corn production without vertical mulch. On the other hand, the cropping system with six meter distance of vertical mulch required Rp 3,250,000,- per ha, which was Rp 250,000,- more expensive than that without vertical mulch.
机译：由于未受控的径流，侵蚀和养分流失，明爱森林面积的扩大加剧了土地的退化，特别是在年降雨量高的坡地上。为了减少退化的严重程度，应该通过应用水土保持技术来修复该地区。使用的技术是植物性方法（养殖），并将其与机械/技术方法结合使用。预计该组合方法将更有效地控制径流，侵蚀和养分流失。一个重要的参数是垂直覆盖通道距离的效率，这会影响应用成本。这项研究旨在确定不同垂直覆盖通道距离对植物生长和年度作物产量的影响，以及其在控制径流，侵蚀和养分流失方面的效果。该研究于2005年至2008年在明爱森林进行，采用了随机区组设计。所采用的处理方法为：垂直覆盖地块，种植地为哈亚（Khaya anthotheca C.Dc.）和玉米（Zea mays L.）六到十二米的地块。观测结果包括海藻的高度和直径增长，径流和侵蚀以及每公顷成本。结果表明，垂直覆盖六米是最有效的距离。与对照组相比，卡亚树的高度和直径在六米的距离上分别增加了7％和31％。此外，径流和侵蚀减少了75％和37％，养分损失可以减少3至5倍。此外，六米的距离还可以生产712公斤/公顷/年的玉米，比不使用垂直覆盖的玉米产量高73％。另一方面，垂直覆盖物六米距离的种植系统每公顷需要Rp 3,250,000，-比没有垂直覆盖物的Rp 250,000，更昂贵。

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