气候变化领域集成服务门户(CCPortal): Cross-site patterns in the response of Eucalyptus plantations to irrigation, climate and intra-annual weather variation

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DOI	10.1016/j.foreco.2020.118444
	Cross-site patterns in the response of Eucalyptus plantations to irrigation, climate and intra-annual weather variation
	Ryan M.G.; Stape J.L.; Binkley D.; Alvares C.A.
发表日期	2020
ISSN	0378-1127
卷号	475
英文摘要	Cross-site patterns for multiple sites tend to be more broadly applicable and more useful for constructing and constraining models. We examined cross-site patterns of Eucalyptus plantation response to water supply (including irrigation and 1/3 precipitation removal), mean annual temperature (MAT), vapor pressure deficit during the daytime (VPD), and nutrient addition in eight sites from the Brazil Eucalyptus Productivity Project (BEPP). Mean annual increment (MAI) for all treatments and sites varied from 12.7 to 37.3 Mg ha−1 yr−1 across a 1400 km latitudinal gradient where annual precipitation varied from 940 to 1430 mm yr−1. MAI varied with water added across all sites, with a near linear increase of 1.42 Mg ha−1 yr−1 per 100 mm yr−1 between 640 and 1800 mm yr−1, a MAI plateau of 30.8 Mg ha−1 yr−1 at ~2000 mm yr−1, then decreasing to MAI of 27.2 Mg ha−1 yr−1 at 3060 mm yr−1. Including MAT with the water response showed that MAI decreased at 1.23 Mg ha−1 yr−1 per °C. For the natural precipitation treatments, MAI decreased at 2.52 Mg ha−1 yr−1 per °C, comparable to that for the much broader TECHS Project (Binkley et al., 2020). MAI was not related to temperature for the irrigation treatments, suggesting that some or all of the response of MAI to temperature is related to water supply. The difference between the biomass of the irrigation treatments and that of natural precipitation treatment slowed its increase or stopped increasing at age 30–60 months for five of the eight sites, but increased through the study duration for the other three sites. The difference in biomass between the fertilization and no fertilization treatments increased throughout the study for two sites. Three- and six-month growth was generally unrelated prior 3–12 month weather. Age-related decline was observed for all of the treatments at four of the eight sites. These cross-site comparisons affirm that water supply is the key resource determining levels of plantation productivity in Brazil and that individual site studies are inadequate for understanding many key responses. © 2020 Elsevier B.V.
英文关键词	Age-related decline; Forest production ecology; Growth response to water; Irrigation; Nutrition; Temperature; Vapor pressure deficit
语种	英语
scopus关键词	Irrigation; Plants (botany); Productivity; Annual precipitation; Eucalyptus plantations; Irrigation treatments; Latitudinal gradients; Mean annual increments; Mean annual temperatures; Plantation productivity; Vapor pressure deficit; Water supply; biomass; deciduous forest; irrigation system; latitudinal gradient; vapor pressure; water supply; Eucalyptus; Irrigation; Patterns; Podocarpus Spicatus; Precipitation; Productivity; Sites; Water Supply; Brazil; Eucalyptus
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155016
作者单位	Department of Ecosystem Science & Sustainability, Colorado State University, Fort Collins, CO 80523, United States; USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO 80526, United States; Department of Forest Science, São Paulo State University – UNESP, Botucatu, SP 18600, Brazil; Forestry Science and Research Institute (IPEF), Piracicaba, SP 13400, Brazil; School of Forestry, Northern Arizona University, Flagstaff, AZ 86011, United States
推荐引用方式 GB/T 7714	Ryan M.G.,Stape J.L.,Binkley D.,et al. Cross-site patterns in the response of Eucalyptus plantations to irrigation, climate and intra-annual weather variation[J],2020,475.
APA	Ryan M.G.,Stape J.L.,Binkley D.,&Alvares C.A..(2020).Cross-site patterns in the response of Eucalyptus plantations to irrigation, climate and intra-annual weather variation.Forest Ecology and Management,475.
MLA	Ryan M.G.,et al."Cross-site patterns in the response of Eucalyptus plantations to irrigation, climate and intra-annual weather variation".Forest Ecology and Management 475(2020).