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Dergiler / Turkish Journal of Agriculture and Forestry / 2014 / Cilt: 38 - Sayı: 3

Root inclusion net method: novel approach to determine fine root production and turnover in Larix principis-rupprechtii Mayr plantation in North China

Xiyang WANG
Lvyi MA
Zhongkui JIA
Liming JIA
Sayfa
388–398
Yayın Tarihi
2014-05-18
DOI
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The results suggest that our new modified root inclusion net method is suitable for field-based assessment of fine root production and turnover.

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Amaç & Hipotez:A novel root inclusion net method was designed to determine the fine root productions and turnover rates of 13-, 22-, and 38-year-old Larix principis-rupprechtii plantations in the whole growing season of 2012, and it was compared with the results of the sequential coring method and in-growth core method.
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Temel Bulgular & Veri:All following values are reported in order for 13-, 22-, and 38-year-old L. principis-rupprechtii plantations.
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Sonuç & Katkı:The results suggest that our new modified root inclusion net method is suitable for field-based assessment of fine root production and turnover.
🔬Tür:Laboratuvar & Saha Deneyi
📍Kapsam:2012 Verileri
⚙️Değişkenler:Key words: Fine root turnover · plantation · root inclusion net method

Özet

A novel root inclusion net method was designed to determine the fine root productions and turnover rates of 13-, 22-, and 38-year-old Larix principis-rupprechtii plantations in the whole growing season of 2012, and it was compared with the results of the sequential coring method and in-growth core method. All following values are reported in order for 13-, 22-, and 38-year-old L. principis-rupprechtii plantations. The mean values of fine root biomasses were 103, 261, and 356 g m-2, about 76-78% of which were live fine root biomasses. The fine root productions were 86-118 g m-2 year-1, 124-138 g m-2 year-1, and 134-160 g m-2 year-1, respectively. The fine root turnover rates were 1.12, 0.61, and 0.51 times year-1, respectively, suggesting a relative slow fine root turnover in L. principis-rupprechtii plantations. The carbon inputs into soil accompanying fine root turnover were 52, 58, and 94 g C m-2 year-1. This organic carbon is a sizeable pool in the forest ecosystem. The results suggest that our new modified root inclusion net method is suitable for field-based assessment of fine root production and turnover.

Abstract

A novel root inclusion net method was designed to determine the fine root productions and turnover rates of 13-, 22-, and 38-year-old Larix principis-rupprechtii plantations in the whole growing season of 2012, and it was compared with the results of the sequential coring method and in-growth core method. All following values are reported in order for 13-, 22-, and 38-year-old L. principis-rupprechtii plantations. The mean values of fine root biomasses were 103, 261, and 356 g m-2, about 76-78% of which were live fine root biomasses. The fine root productions were 86-118 g m-2 year-1, 124-138 g m-2 year-1, and 134-160 g m-2 year-1, respectively. The fine root turnover rates were 1.12, 0.61, and 0.51 times year-1, respectively, suggesting a relative slow fine root turnover in L. principis-rupprechtii plantations. The carbon inputs into soil accompanying fine root turnover were 52, 58, and 94 g C m-2 year-1. This organic carbon is a sizeable pool in the forest ecosystem. The results suggest that our new modified root inclusion net method is suitable for field-based assessment of fine root production and turnover.

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Bu Makaleye Atıf Yap

WANG, X., MA, L., JIA, Z., JIA, L. (2014). Root inclusion net method: novel approach to determine fine root production and turnover in Larix principis-rupprechtii Mayr plantation in North China. Turkish Journal of Agriculture and Forestry, Cilt: 38 - Sayı: 3, 388–398. https://ajindex.com/articles/180039

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