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Production, decomposition and nutrient contents of litter in subtropical broadleaved forest surpass those in coniferous forest, Meghalaya
Tropical Ecology ( IF 1.6 ) Pub Date : 2020-03-11 , DOI: 10.1007/s42965-020-00065-x
I. M. Nonghuloo , S. Kharbhih , B. R. Suchiang , D. Adhikari , K. Upadhaya , S. K. Barik

Litter plays a crucial role in forest ecosystem functioning as its production and decomposition govern the pools and fluxes of forest nutrient cycling. The release of nutrients through litterfall and decomposition influences forest productivity. Therefore, these two factors are considered to be important indicators of forest ecosystem health. Such processes vary across different ecosystem types because of natural as well as anthropogenic factors. Hence, studying such processes would help in better understanding and management of forest ecosystems. Litter production and decomposition rates between a broadleaved and a coniferous forest ecosystem of Meghalaya in Northeast India were compared. We selected six subtropical broadleaved forest stands in Muthlong, Ialong, Nongbah, Mukhla, Nongkrem and Mawnai, and six adjacent coniferous forest stands dominated by pine. We estimated leaf litter production, decomposition and nutrient release, and analyzed the nitrogen and phosphorus contents in the litter of both the forest types. The study revealed that litter production and decomposition rates, and the litter nitrogen and phosphorous contents were significantly higher in the broadleaved forest compared to the pine forest. The variability in the litter characteristics was greater in the broadleaved forest compared to the coniferous forest indicating that the former is functionally more dynamic than the latter. Such dynamism in the broadleaved forest could be an important factor for providing greater ecological services compared to the coniferous forest, which nevertheless requires an in-depth study.

中文翻译:

亚热带阔叶林凋落物的产生,分解和养分含量超过梅加拉亚邦针叶林

凋落物在森林生态系统功能中起着至关重要的作用,因为其产生和分解控制着森林养分循环的池和通量。凋落物和分解物中养分的释放会影响森林生产力。因此,这两个因素被认为是森林生态系统健康的重要指标。由于自然因素和人为因素,这些过程在不同的生态系统类型中有所不同。因此,研究这些过程将有助于更好地了解和管理森林生态系统。比较了印度东北梅加拉亚邦阔叶和针叶林生态系统之间的凋落物产生和分解速率。我们在Muthlong,Ialong,Nongbah,Mukhla,Nongkrem和Mawnai中选择了六个亚热带阔叶林,六个相邻的针叶林林分以松树为主。我们估算了叶子凋落物的产生,分解和养分释放,并分析了两种森林类型凋落物中的氮和磷含量。研究表明,阔叶林的凋落物产生和分解速率以及凋落物氮和磷含量均显着高于松林。与针叶林相比,阔叶林凋落物特性的变异性更大,这表明前者在功能上比后者更具活力。与针叶林相比,阔叶林中的这种活力可能是提供更多生态服务的重要因素,而针叶林仍需要进行深入研究。分解和养分释放,并分析了两种森林类型凋落物中的氮和磷含量。研究表明,阔叶林的凋落物产生和分解速率以及凋落物氮和磷含量均显着高于松林。与针叶林相比,阔叶林凋落物特性的变异性更大,这表明前者在功能上比后者更具活力。与针叶林相比,阔叶林中的这种活力可能是提供更多生态服务的重要因素,而针叶林仍需要进行深入研究。分解和养分释放,并分析了两种森林类型凋落物中的氮和磷含量。研究表明,阔叶林的凋落物产生和分解速率以及凋落物氮和磷含量均显着高于松林。与针叶林相比,阔叶林凋落物特性的变异性更大,这表明前者在功能上比后者更具活力。与针叶林相比,阔叶林中的这种活力可能是提供更多生态服务的重要因素,而针叶林仍需要进行深入研究。研究表明,阔叶林的凋落物产生和分解速率以及凋落物氮和磷含量均显着高于松林。与针叶林相比,阔叶林凋落物特性的变异性更大,这表明前者在功能上比后者更具活力。与针叶林相比,阔叶林中的这种活力可能是提供更多生态服务的重要因素,而针叶林仍需要进行深入研究。研究表明,阔叶林的凋落物产生和分解速率以及凋落物氮和磷含量均显着高于松林。与针叶林相比,阔叶林凋落物特性的变异性更大,这表明前者在功能上比后者更具活力。与针叶林相比,阔叶林中的这种活力可能是提供更多生态服务的重要因素,而针叶林仍需要进行深入研究。与针叶林相比,阔叶林凋落物特性的变异性更大,这表明前者在功能上比后者更具活力。与针叶林相比,阔叶林中的这种活力可能是提供更多生态服务的重要因素,而针叶林仍需要进行深入研究。与针叶林相比,阔叶林凋落物特性的变异性更大,这表明前者在功能上比后者更具活力。与针叶林相比,阔叶林中的这种活力可能是提供更多生态服务的重要因素,而针叶林仍需要进行深入研究。
更新日期:2020-03-11
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