Moisture, Not Temperature, in the Pre-Monsoon Influences <i>Pinus wallichiana</i> Growth along the Altitudinal and Aspect Gradients in the Lower Himalayas of Central Nepal

Changing climate can strongly affect tree growth and forest productivity. The dendrochronological approach to assessing the impact of climate change on tree growth is possible through climate–growth correlation analysis. This study uses an individual tree-based approach to model <i>Pinus walli...

Full description

Bibliographic Details
Main Authors: Deepak Gautam, Narayan Prasad Gaire, Mukti Subedi, Ram P. Sharma, Shankar Tripathi, Rajesh Sigdel, Saroj Basnet, Mahamad Sayab Miya, Parveen K. Chhetri, Xiaojuan Tong
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Forests
Subjects:
Online Access:https://www.mdpi.com/1999-4907/13/11/1771
_version_ 1797468257070874624
author Deepak Gautam
Narayan Prasad Gaire
Mukti Subedi
Ram P. Sharma
Shankar Tripathi
Rajesh Sigdel
Saroj Basnet
Mahamad Sayab Miya
Parveen K. Chhetri
Xiaojuan Tong
author_facet Deepak Gautam
Narayan Prasad Gaire
Mukti Subedi
Ram P. Sharma
Shankar Tripathi
Rajesh Sigdel
Saroj Basnet
Mahamad Sayab Miya
Parveen K. Chhetri
Xiaojuan Tong
author_sort Deepak Gautam
collection DOAJ
description Changing climate can strongly affect tree growth and forest productivity. The dendrochronological approach to assessing the impact of climate change on tree growth is possible through climate–growth correlation analysis. This study uses an individual tree-based approach to model <i>Pinus wallichiana</i> (<i>P. wallichiana</i>) radial growth response to climate across the physiographic gradients in the lower distributional range of Nepal. This study sampled six sites across the Makwanpur district of central Nepal that varied in elevation and aspect, obtaining 180 tree-ring series. Climate data series were obtained from Climate Research Unit (CRU 4.0). The pair correlation approach was used to assess <i>P. wallichiana</i> growth response to climate and site-level physiographic variables such as site-level environmental stress. The study also determined long-term growth trends across the elevation and aspect gradients. Trees at sites with higher elevation and northeast aspect (NEA) were more responsive to winter and spring precipitation, whereas trees with lower elevation and northwest aspect (NWA) were more responsive to winter and spring precipitation. Basal area increment (BAI) analysis showed the variation of growth at site-level environmental stress, suggesting that the sensitivity of forest ecosystems to changing climate will vary across the lower growth limit of <i>P. wallichiana</i> due to differences in local physiographic conditions.
first_indexed 2024-03-09T19:04:49Z
format Article
id doaj.art-c946cb7bd1f84204bc05483d803db8fa
institution Directory Open Access Journal
issn 1999-4907
language English
last_indexed 2024-03-09T19:04:49Z
publishDate 2022-10-01
publisher MDPI AG
record_format Article
series Forests
spelling doaj.art-c946cb7bd1f84204bc05483d803db8fa2023-11-24T04:42:55ZengMDPI AGForests1999-49072022-10-011311177110.3390/f13111771Moisture, Not Temperature, in the Pre-Monsoon Influences <i>Pinus wallichiana</i> Growth along the Altitudinal and Aspect Gradients in the Lower Himalayas of Central NepalDeepak Gautam0Narayan Prasad Gaire1Mukti Subedi2Ram P. Sharma3Shankar Tripathi4Rajesh Sigdel5Saroj Basnet6Mahamad Sayab Miya7Parveen K. Chhetri8Xiaojuan Tong9School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaPatan Multiple Campus, Tribhuvan University, Lalitpur 44700, NepalWarnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USAInstitute of Forestry, Tribhuvan University, Kathmandu 44600, NepalInstitute of Forestry, Hetauda Campus, Tribhuvan University, Hetauda 44107, NepalInstitute of Forestry, Hetauda Campus, Tribhuvan University, Hetauda 44107, NepalInstitute of Botany and Landscape Ecology, University of Greifswald, Soldmannstrasse-15, 17489 Greifswald, GermanyInstitute of Forestry, Pokhara Campus, Tribhuvan University, Pokhara 33700, NepalDepartment of Earth Science and Geography, California State University, Dominguez Hills, Carson, CA 90747, USASchool of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, ChinaChanging climate can strongly affect tree growth and forest productivity. The dendrochronological approach to assessing the impact of climate change on tree growth is possible through climate–growth correlation analysis. This study uses an individual tree-based approach to model <i>Pinus wallichiana</i> (<i>P. wallichiana</i>) radial growth response to climate across the physiographic gradients in the lower distributional range of Nepal. This study sampled six sites across the Makwanpur district of central Nepal that varied in elevation and aspect, obtaining 180 tree-ring series. Climate data series were obtained from Climate Research Unit (CRU 4.0). The pair correlation approach was used to assess <i>P. wallichiana</i> growth response to climate and site-level physiographic variables such as site-level environmental stress. The study also determined long-term growth trends across the elevation and aspect gradients. Trees at sites with higher elevation and northeast aspect (NEA) were more responsive to winter and spring precipitation, whereas trees with lower elevation and northwest aspect (NWA) were more responsive to winter and spring precipitation. Basal area increment (BAI) analysis showed the variation of growth at site-level environmental stress, suggesting that the sensitivity of forest ecosystems to changing climate will vary across the lower growth limit of <i>P. wallichiana</i> due to differences in local physiographic conditions.https://www.mdpi.com/1999-4907/13/11/1771climate changebasal area incrementgrowth–climate responseradial growthtree ring
spellingShingle Deepak Gautam
Narayan Prasad Gaire
Mukti Subedi
Ram P. Sharma
Shankar Tripathi
Rajesh Sigdel
Saroj Basnet
Mahamad Sayab Miya
Parveen K. Chhetri
Xiaojuan Tong
Moisture, Not Temperature, in the Pre-Monsoon Influences <i>Pinus wallichiana</i> Growth along the Altitudinal and Aspect Gradients in the Lower Himalayas of Central Nepal
Forests
climate change
basal area increment
growth–climate response
radial growth
tree ring
title Moisture, Not Temperature, in the Pre-Monsoon Influences <i>Pinus wallichiana</i> Growth along the Altitudinal and Aspect Gradients in the Lower Himalayas of Central Nepal
title_full Moisture, Not Temperature, in the Pre-Monsoon Influences <i>Pinus wallichiana</i> Growth along the Altitudinal and Aspect Gradients in the Lower Himalayas of Central Nepal
title_fullStr Moisture, Not Temperature, in the Pre-Monsoon Influences <i>Pinus wallichiana</i> Growth along the Altitudinal and Aspect Gradients in the Lower Himalayas of Central Nepal
title_full_unstemmed Moisture, Not Temperature, in the Pre-Monsoon Influences <i>Pinus wallichiana</i> Growth along the Altitudinal and Aspect Gradients in the Lower Himalayas of Central Nepal
title_short Moisture, Not Temperature, in the Pre-Monsoon Influences <i>Pinus wallichiana</i> Growth along the Altitudinal and Aspect Gradients in the Lower Himalayas of Central Nepal
title_sort moisture not temperature in the pre monsoon influences i pinus wallichiana i growth along the altitudinal and aspect gradients in the lower himalayas of central nepal
topic climate change
basal area increment
growth–climate response
radial growth
tree ring
url https://www.mdpi.com/1999-4907/13/11/1771
work_keys_str_mv AT deepakgautam moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal
AT narayanprasadgaire moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal
AT muktisubedi moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal
AT rampsharma moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal
AT shankartripathi moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal
AT rajeshsigdel moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal
AT sarojbasnet moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal
AT mahamadsayabmiya moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal
AT parveenkchhetri moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal
AT xiaojuantong moisturenottemperatureinthepremonsooninfluencesipinuswallichianaigrowthalongthealtitudinalandaspectgradientsinthelowerhimalayasofcentralnepal