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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Technology for rehabilitation of Yamuna ravines - cost-effective practices to conserve natural resources through bamboo plantation
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Technology for rehabilitation of Yamuna ravines - cost-effective practices to conserve natural resources through bamboo plantation

机译：Yamuna沟壑修复技术-通过竹林保护自然资源的经济有效做法

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摘要

The present study evaluated bamboo (Dendrocalamus strictus) based resource conservation in the Yamuna ravines at Central Soil and Water Conservation Research and Training Institute, Research Centre, Agra, Uttar Pradesh, India. Ravine lands are highly degraded dry lands and 3.97 m ha area is affected by ravines in India. One ravine micro watershed of 2.8 ha area was planted with two rows of bamboo in staggered manner as vegetative barrier for the analysis of hydrological and economic aspect of bamboo plantation. Hydrological results showed that runoff has been reduced from 9.6% to 1.8% and soil loss from 4.2 to 0.6 t/ha/year in the last 4 years. Based on bamboo growth performance, average value of culm height and culm collar diameter have been recorded as 3.80 m and 22.50 mm, the value of average crown size and number of culms per clump being 3.93 m and 18 numbers respectively. Further, the soils under bamboo plants improved in terms of decreased pH and enhanced soil organic carbon. The economic analysis suggested a cash outflow of Rs 48,000 ha(-1) from 7th year onwards to the stakeholders in the region, in addition to the benefits accrued to society at large in terms of value of nutrient (Rs 2125-5555 ha(-1)) saved through soil conservation. This study recommends bamboo plantation for productive and protective utilization of such degraded lands. It also suggests that the high cost of establishment for individual stakeholders can be met through subsidies and banks' financial inclusion programme in developing countries such as India. Further, public funding can also be routed through appropriate budgetary provisions in development plans of corporate entities involved in the rural development in the country.
机译：本研究在印度北方邦阿格拉研究中心的中央水土保持研究和培训所评估了Yamuna沟谷中基于竹（Dendrocalamus strictus）的资源保护。沟谷地是高度退化的旱地，而印度的沟谷地面积为3.97 m公顷。在1个2.8公顷的沟壑微流域上，以交错的方式种植了两排竹子作为营养屏障，用于分析竹子人工林的水文和经济方面。水文结果表明，在过去的4年中，径流从9.6％降低到1.8％，土壤流失从4.2吨/公顷/年/年减少。根据竹子的生长性能，记录的茎高和茎领直径的平均值分别为3.80 m和22.50 mm，平均树冠大小和每团的茎数分别为3.93 m和18。此外，竹植物下的土壤在降低pH值和增加土壤有机碳方面有所改善。经济分析表明，从第七年开始，该地区的利益相关者将有现金流向48,000公顷（-1）卢比，此外，就营养价值而言，这在很大程度上给社会带来了收益（2125-5555卢比（- 1））通过水土保持得以保存。本研究建议将竹林用于此类退化土地的生产和保护性利用。这也表明，可以通过补贴和印度等发展中国家的银行金融普惠计划来弥补单个利益相关者的高昂建立成本。此外，公共资金也可以通过参与该国农村发展的公司实体的发展计划中的适当预算条款来拨付。

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