Growth and Biomass Yield of Grey Sedge ( Lepironia articulata Retz. Domin) under Different Shoot-Cutting Intervals in a Tropical Peatland

Erizal Sodikin, Irmawati Irmawati, Rujito A. Suwignyo (), Entis S. Halimi, Marudut Tampubolon, A-Ram Yang, Hyunyoung Yang () and Himlal Baral
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Erizal Sodikin: Department of Agronomy, Faculty of Agriculture, Sriwijaya University, Palembang 30662, Indonesia
Irmawati Irmawati: Department of Agronomy, Faculty of Agriculture, Sriwijaya University, Palembang 30662, Indonesia
Rujito A. Suwignyo: Department of Agronomy, Faculty of Agriculture, Sriwijaya University, Palembang 30662, Indonesia
Entis S. Halimi: Department of Agronomy, Faculty of Agriculture, Sriwijaya University, Palembang 30662, Indonesia
Marudut Tampubolon: Department of Agroecotechnology, Sriwijaya University, Palembang 30662, Indonesia
A-Ram Yang: Forest Strategy Research Division, Future Forest Strategy Department, National Institute of Forest Science, Seoul 02455, Republic of Korea
Hyunyoung Yang: Forest Strategy Research Division, Future Forest Strategy Department, National Institute of Forest Science, Seoul 02455, Republic of Korea
Himlal Baral: Center for International Forestry Research and World Agroforestry (CIFOR-ICRAF), Bogor Barat 16115, Indonesia

Sustainability, 2024, vol. 16, issue 20, 1-13

Abstract: Grey sedge ( Lepironia articulata Retz. Domin) is a plant endemic to tropical peatlands and is widely used as a handicraft and biodegradable product that brings income to local farmers. However, its habitat has been decreasing due to peatland degradation, which has forced local farmers to harvest L. articulata repeatedly in the same habitat. To examine the effects of repeated shoot cutting at different time intervals on L. articulata growth and biomass yield, a mesocosm experiment was conducted from June 2019 to March 2020 in a tropical peatland in Perigi village, Ogan Ilir District, South Sumatra, Indonesia, using a randomized block design with four treatments and three replicates. The treatments were as follows: P1 (cutting every 1 month), P2 (cutting every 2 months), P3 (cutting every 3 months), and P4 (cutting at 6-months). The results showed that P1 significantly reduced monthly shoot height, shoot diameter, shoot number, dry biomass, cumulative shoot number, and cumulative dry biomass. In contrast, considering L. articulata ‘s regenerative growth, the growth and cumulative biomass yield of P3 (1453.5 ± 518.4 g m −2 ) were as good as those of P4. These results indicate that the harvesting interval should be longer than 3 months for the sustainable use of L. articulata in tropical peatlands without damaging its regenerative ability.

Keywords: biomass yield; harvest time; Lepironia articulata; regenerative ability; shoot-cutting interval; sustainable management; tropical peatland (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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