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Forests 2016, 7(1), 12; doi:10.3390/f7010012

Propagation of Native Tree Species to Restore Subtropical Evergreen Broad-Leaved Forests in SW China

1,2,3,†
,
2,4,†
,
2,4,†
,
1,†
,
5,†
,
5,†
,
6,†
,
7,†
and
2,4,8,†,*
1
Institute of Ecology and Geobotany, Yunnan University, Kunming 650091, China
2
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
3
University of Chinese Academy of Sciences, Beijing 100049, China
4
World Agroforestry Center, ICRAF East and Central Asia, Kunming 650201, China
5
Tengchong Gaoligong Nature Reserve Management Department, Tengchong 679100, China
6
Yunnan Vocational College of Forestry, Kunming 650000, China
7
Mountain Societies Research Centre, University of Central Asia, Bishkek 720001, Kyrgyz Republic
8
College of Economics and Management, Yunnan Agricultural University, Kunming 650204, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editors: John MacKay and Eric J. Jokela
Received: 5 October 2015 / Revised: 11 December 2015 / Accepted: 23 December 2015 / Published: 2 January 2016
View Full-Text   |   Download PDF [1712 KB, uploaded 2 January 2016]   |  

Abstract

Subtropical evergreen broad-leaved forest (EBLF) is a widespread vegetation type throughout East Asia that has suffered extensive deforestation and fragmentation. Selection and successful propagation of native tree species are important for improving ecological restoration of these forests. We carried out a series of experiments to study the propagation requirements of indigenous subtropical tree species in Southwest China. Seeds of 21 tree species collected from the natural forest were materials for the experiment. This paper examines the seed germination and seedling growth performance of these species in a nursery environment. Germination percentages ranged from 41% to 96% and were ≥50% for 19 species. The median length of germination time (MLG) ranged from 24 days for Padus wilsonii to 144 days for Ilex polyneura. Fifteen species can reach the transplant size (≥15 cm in height) within 12 months of seed collection. Nursery-grown seedlings for each species were planted in degraded site. Two years after planting, the seedling survival rate was >50% in 18 species and >80% in 12 species. Based on these results, 17 species were recommended as appropriate species for nursery production in forest restoration projects. Our study contributes additional knowledge regarding the propagation techniques for various native subtropical tree species in nurseries for forest restoration. View Full-Text
Keywords: propagation; germination; seedling; nursery; subtropical propagation; germination; seedling; nursery; subtropical
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MDPI and ACS Style

Lu, Y.; Ranjitkar, S.; Xu, J.-C.; Ou, X.-K.; Zhou, Y.-Z.; Ye, J.-F.; Wu, X.-F.; Weyerhaeuser, H.; He, J. Propagation of Native Tree Species to Restore Subtropical Evergreen Broad-Leaved Forests in SW China. Forests 2016, 7, 12.

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