Results 11 to 20 of about 141,317 (267)

Spatial-temporal Variation of Water Yield in Nanbei Panjiang River Basin Based on InVEST Model

open access: yesShuitu baochi tongbao, 2023
[Objective] The temporal and spatial variation characteristics of water yield and differences in the water yield function for different land use types, soil types, and topography in the Nanbei Panjiang River basin were analyzed in order to provide a ...
Wu Tangyin   +5 more
doaj   +1 more source

Analysis of Carbon Stock Evolution and Its Vulnerability Characteristics Based on Land Use Change in Guizhou Province

open access: yesShuitu baochi tongbao, 2023
[Objective] The spatial and temporal distribution pattern and evolution characteristics of ecosystem carbon storage, its response to land use change, and the vulnerability of ecosystem carbon storage service in each county of Guizhou Province were ...
Chen Darong   +5 more
doaj   +1 more source

Spatial-temporal Variation and Driving Forces of Water Yield in Harbin City

open access: yesShuitu baochi tongbao, 2023
[Objective] The spatial-temporal variation characteristics of water yield services in Harbin City, Heilongjiang Province from 2000 to 2020 were determined, and the driving mechanism of the spatial-temporal differentiation characteristics of Harbin City’s
Qi Yuxin, Hu Yuandong
doaj   +1 more source

A Study on Carbon Fixation Capacity and Its Influencing Factors Based on InVEST Model at Wuhu City

open access: yesShuitu baochi tongbao, 2023
[Objective] The spatial and temporal distribution pattern of carbon storage at Wuhu City, Anhui Province from 2011 to 2021 were analyzed, and the influence of ecological environmental factors, topographic factors, meteorological factors, and land use ...
Xia Quansheng   +9 more
doaj   +1 more source

Spatiotemporal Variation and Influencing Factors of Water Yield in Drinking Water Sources

open access: yesShuitu baochi tongbao, 2023
[Objective] The spatial and temporal distribution of water yield at Yunlong Reservoir basin (one of the sources of drinking water in Kunming) from 2001 to 2020 was studied in order to provide a scientific basis for the sustainable development of a water ...
Liu Anyou   +6 more
doaj   +1 more source

New Perspective on Investment Models

open access: yesThe Journal of Portfolio Management, 2021
What is the secret ingredient to securing better long-term investment outcomes? Investors seldom consider institutional investors from an organizational and strategic perspective. Thinking in terms of investment models highlights a severely under-researched area.
Koedijk, Kees, Slager, Alfred
openaire   +4 more sources

Modeling and analysis of water conservation capacity in the source region of the Yellow River from 2000 to 2020

open access: yesShuili Shuiyun Gongcheng Xuebao, 2023
The source area of the Yellow River plays a vital role in water yield and conservation within the Yellow River Basin, impacting socio-economic development along the river’s upper, middle, and lower reaches.
YE Lijuan   +5 more
doaj   +1 more source

Modelling of "Green" Investments Risks

open access: yesBulletin of the South Ural State University. Series "Mathematical Modelling, Programming and Computer Software", 2018
Summary: The practical lack of methods for quantitative assessment of capital-intensive renewable energy projects taking into account the present uncertainty leads to an increase in the riskiness and reduce the amount of ``green'' investment in the economy. It resolves the urgency of the developing approaches to the renewable energy projects assessment.
Mokhov, V. G.   +2 more
openaire   +2 more sources

Generalized Q Models for Investment [PDF]

open access: yesThe Review of Economics and Statistics, 1991
The authors extend the Q theory of investment to allow for adjustment costs for labor, under the additional assumption that the firm is a monopolistic competitor in the output market. The issue of nonconstant returns to scale is also discussed. The authors show that the standard Q model is a special case of a more general model involving testable ...
Galeotti, Marzio, Schiantarelli, Fabio
openaire   +2 more sources

Spatial-temporal Distribution of Carbon Storage in Qilian Mountain National Park Based on InVEST Model

open access: yesShuitu baochi tongbao, 2022
[Objective] Carbon storage and its spatio-temporal distribution in the Qilian Mountain National Park, and the impact of land use change on terrestrial ecosystem carbon storage were analyzed in order to provide a scientific basis for improving the ...
Deng Zhe   +4 more
doaj   +1 more source

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