نتایج جستجو برای: ecosystem service value esv
تعداد نتایج: 1107610 فیلتر نتایج به سال:
Achieving urban water security requires sustaining the trade-offs between exploitation of water/environmental resources and ecosystem services. This achievement not only reduces pollution contamination in environment, level stress, but also secures good ambient quality future for people’s well-being livelihoods. Changes land use cover growth impervious structures can immediately generate severe...
Urban lake wetlands play an essential role in providing ecological services, promoting urban sustainability, and enhancing the quality of life. This study quantitatively assesses ecosystem services value (ESV) Zhangdu, East, Ziyang Wuhan, China, based on primary survey data methodologies, including market price, shadow engineering, travel cost methods. The ESV is categorized into direct use (DU...
a r t i c l e i n f o Keywords: Apis mellifera biodiversity-ecosystem function ecosystem services native bee pollinator valuation ecosystem service valuation wild bee Crop pollination by animal pollinators is an important ecosystem service for which there is no generally accepted valuation method. Here, we show that two existing valuation methods, previously thought to be unrelated , are each a...
With rapid urbanization in China, the dramatic land-use changes are one of most prominent features that have substantially affected land ecosystems, thus seriously threatening sustainable development. However, current studies focused more on evaluating economic efficiency land-use, while loss and degradation ecosystem services barely considered. To address these issues, this study first propose...
Value estimates of ecosystem goods and services are useful to justify the allocation of resources towards conservation, but inconclusive estimates risk unsustainable resource allocations. Here we present replacement costs as a more accurate value estimate of insect pollination as an ecosystem service, although this method could also be applied to other services. The importance of insect pollina...
BACKGROUND Right ventricular (RV) function is a major determinant of outcome in pulmonary arterial hypertension (PAH). However, uncertainty persists about the optimal method of evaluation. METHODS We measured RV end-systolic and end-diastolic volumes (ESV and EDV) using cardiac magnetic resonance imaging and RV pressures during right heart catheterization in 140 incident PAH patients and 22 c...
AIM Left ventricular (LV) transient ischemic dilatation (TID) is not clear how it relates to inducible myocardial ischemia during stress echocardiography (SE). METHODS AND RESULTS Eighty-eight SEs were examined from the site certification phase of the ISCHEMIA Trial. LV end-diastolic volume (EDV) and end-systolic volume (ESV) were measured at rest and peak stages and the percent change calcul...
This paper discusses the construction of an ecosystem services index (ESI) and the respective roles of ecology and economics in that effort. It extends the concept of an ESI, analogous to Gross Domestic Product, to other analogous indices, including an ecosystem price or value index, and a net ESI that accounts for interactions between ecosystem stocks and service flows. A central aim of this p...
BACKGROUND The incremental prognostic value of post-stress left ventricular ejection fraction (EF) and volume over perfusion has not been investigated. METHODS AND RESULTS We identified 1680 consecutive patients who underwent rest Tl-201/stress Tc-99m sestamibi gated single photon emission computed tomography (SPECT) and who were followed-up for 569+/-106 days. Receiver-operator characteristi...
Abstract Assessing the effects of land use and cover (LULC) on ecosystem service values (ESVs) is critical for public understanding policymaking. This study evaluated impacts LULC dynamics ESVs in Chandigarh city India. The assessment changes was performed by analyzing satellite imagery area years 1990 2020 with different band combinations ArcGIS (10.8 version software). In addition, we analyze...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید