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An exploration of sustainability versus productivity and ecological stability in planted and natural forests in Sichuan, China

文献类型： 外文期刊

作者： Li, Ting 1 ; Wang, Qi 4 ; Liu, Yang 6 ; Lai, Changhong 6 ; Lu, Heng 3 ; Qiu, Yuming 7 ; Peng, Li 3 ; Tang, Hao 1 ;

作者机构： 1.Sichuan Normal Univ, Key Lab Evaluat & Monitoring Southwest Land Resou, Minist Educ, Chengdu 610068, Peoples R China

2.West Normal Univ, Key Lab Southwest Wildlife Resources Conservat, Minist Educ, Nanchong, Peoples R China

3.Sichuan Normal Univ, Fac Geog Resource Sci, Chengdu, Peoples R China

4.Chinese Acad Fishery Sci, Key Lab Aquat Genom, Minist Agr, Beijing, Peoples R China

5.Chinese Acad Fishery Sci, Beijing Key Lab Fishery Biotechnol, Beijing, Peoples R China

6.Sichuan Forestry & Grassland Res & Planning Inst, Chengdu, Peoples R China

7.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China

关键词： climate change; ecological stability; mountain ecosystem; planted forest; sustainable management

期刊名称：LAND DEGRADATION & DEVELOPMENT （ 影响因子：4.377； 五年影响因子：5.205 ）

ISSN： 1085-3278

年卷期： 2022 年 33 卷 17 期

页码：

收录情况： SCI

摘要： Implementation of the Natural Forest Protection Project and Grain-for-Green Program in China has promoted forest restoration, increased productivity, and enhanced carbon stocks. However, few studies have characterized temporal and spatial variation in productivity and ecological stability in planted and natural forests and evaluated the factors driving such variation. In this study, we used 1399 permanent forest plots to identify change patterns in the productivity and temporal stability of above-ground biomass (AGB), and evaluate the factors driving these changes in planted and natural forests in Sichuan Province, China. The mean temporal stability of AGB was higher for natural forests than for planted forests from 1979 to 2017; While the productivity of planted forests was higher. The stability decreased at a rate of -0.013 yr(-1) in entire natural forests and -0.011 yr(-1) in planted forests, and the productivity of natural forests decreased significantly over time, with a slope of -0.0065 Mg ha(-1) yr(-1). Altitude, latitude, annual precipitation, and stand age dominated variability in the productivity and AGB stability of natural forests. Richness, tree density, and stand age were the determinants of productivity and stability in the planted forest. Our results suggest that selective thinning, enriching species richness, and forest stand age can effectively balance the productivity and biomass temporal stability of planted forests. Due to climate change, older natural forests should be strictly protected.

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