Primary productivity in ecosystems: comparative analysis of global patterns

Lieth, Helmut

doi:10.1007/978-94-010-1954-5_7

Cited by 58 publications

(42 citation statements)

References 3 publications

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“…Moreover, the lower number of growing days (178 vs. 238; Table 1) likely reduces the forest stem diameter growth and consequently also the productivity and C stock of aboveground biomass. Relationships between the length of the growing season and productivity are well established [46]. In the present study, forest productivity was inferred from annual litterfall.…”

Section: Basal Area Litterfall and C And N Stocksmentioning

confidence: 90%

C Stocks in Forest Floor and Mineral Soil of Two Mediterranean Beech Forests

Marco

Fioretto

Giordano

et al. 2016

Forests

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This study focuses on two Mediterranean beech forests located in northern and southern Italy and therefore subjected to different environmental conditions. The research goal was to understand C storage in the forest floor and mineral soil and the major determinants. Relative to the northern forest (NF), the southern forest (SF) was found to produce higher amounts of litterfall (4.3 vs. 2.5 Mg·ha −1 ) and to store less C in the forest floor (~8 vs.~12 Mg·ha −1 ) but more C in the mineral soil (~148 vs.~72 Mg·ha −1 ). Newly-shed litter of NF had lower P (0.4 vs. 0.6 mg·g −1 ) but higher N concentration (13 vs. 10 mg·g −1 ) than SF. Despite its lower Mn concentration (0.06 vs. 0.18 mg·g −1 ), SF litter produces a Mn-richer humus (0.32 vs. 0.16 mg·g −1 ) that is less stable. The data suggest that decomposition in the NF forest floor is limited by the shorter growing season (178 days vs. 238 days) and the higher N concentrations in newly shed litter and forest floor. Differences in C stock in the mineral soil reflect differences in ecosystem productivity and long-term organic-matter accumulation. The vertical gradient of soluble and microbial fractions in the soil profile of SF was consistent with a faster turnover of organic matter in the forest floor and greater C accumulation in mineral soil relative to NF. With reference to regional-scale estimates from Italian National Forest Inventory data, the C stock in the mineral soil and the basal area of Italian beech forests were found to be significantly related, whereas C stock in the forest floor and C stock in the mineral soil were not.

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Section: Basal Area Litterfall and C And N Stocksmentioning

confidence: 90%

C Stocks in Forest Floor and Mineral Soil of Two Mediterranean Beech Forests

Marco

Fioretto

Giordano

et al. 2016

Forests

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show abstract

“…The NNN model presented here can be seen in the tradition of the Miami model (Lieth 1975); the climate characterization was extended from annual precipitation and annual mean temperature to monthly values (now including light intensity) and the 'training set' for a non-linear parameterized function was extended from about 100 observed NPP values to about 50 000 53 Fig. 14.…”

Section: Discussionmentioning

confidence: 99%

Climate sensitivity of global terrestrial net primary production (NPP) calculated using the reduced-form model NNN

Moldenhauer¹,

Lüdeke²

2002

Clim. Res.

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“…Rosenzweig (1968) has pointed out that real evapo-transpiration E (mm/yr) for vegetation can be used in Pn prediction, because it simultaneously considers both water and solar energy, which are essential and indispensable factors of photosynthesis. Lieth (1973) obtains other relationships as a function of mean annual precipitation Pr (mm) given by…”

Section: Production Models From Climatic Indexesmentioning

confidence: 99%