کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6293706 | 1303105 | 2016 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The inorganic component of green roof substrates impacts the growth of Mediterranean plant species as well as the C and N sequestration potential
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کلمات کلیدی
N-dimethylformamideTotal organic carbon contentWSNAWCFLLCSBWUCOLSET0PWPHSDCSSPPOWSCWHCTDRTOCMUBreference evapotranspiration - تبخیر تعرق مرجعTris–HCl - تریس-HClAbsorbance - جذبElectrical conductivity - رسانایی الکتریکیTime domain reflectometry - رگولاتور دامنه زمانیURA - ساعتGreen roof - سقف سبزCrushed bricks - سنگ آهکSilica sand - شن و ماسه سیلیسWater holding capacity - ظرفیت نگهداری آبPhosphorus - فسفرAvailable water content - محتوای آب موجودPermanent wilting point - نقطه عطفی دائمیNitrogen - نیتروژنCompost - پوسال یا کمپوستChla - چلاChlb - چلبیAPA - چیCarbon - کربنwater soluble carbon - کربن محلول در آبChlorophyll a - کلروفیل achlorophyll b - کلروفیل بtotal chlorophyll - کلروفیل کل
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
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چکیده انگلیسی
Extensive green roofs substrates should meet a list of physicochemical and biochemical requirements to be used as a basis for plant growth: high water holding capacity, good aeration, low bulk density, and proper drainage are some of them. In recent years, the impact of different organic matter doses and the substrate depth on the subsequent plant growth have been deeply studied. By contrast, there are not many publications about the effect of the inorganic component of these substrates on plant development and C and N sequestration potential by the green roof system, and even more under semi-arid Mediterranean conditions. Four substrates were made by mixing the same compost, at 10% by volume, with different inorganic materials: CsB (compost, silica sand, and crushed bricks; 1:1:8), CB (compost and crushed bricks; 1:9), CSB (compost, clay-loam soil, and crushed bricks; 1:1:8), and CsS (compost, silica sand, and clay-loam soil; 1:1:8). These were placed, a depth of 10 cm, on “cultivation tables” in an experimental farm located in the SE of Spain. Two native species were sown in each substrate: Lotus creticus and Asteriscus maritimus. Physicochemical, nutritional, and biochemical properties of the substrates as well as the plant development were evaluated during a 10-month experiment. The CsB and CSB mixtures had good physicochemical properties (high porosity and acceptable water holding capacity) although the levels of C, N, and humic substances were higher in the soil-containing substrates than in the CB and CsB mixtures. The hydrolytic enzyme activity was also promoted in these mixtures. The plant growth pattern showed differences regarding the inorganic composition of the substrate; L. creticus had superior development in the CsB substrate and A. maritimus was able to grow in all tested substrate mixtures, although its cover was low, being a more versatile candidate to establish a green roof cover. The greatest C and N sequestration potential was achieved by the CsS mixture, reaching 1.06 kg TC mâ2 of green roof substrate. Therefore, substrate composition impacts the growth of native plant species as well as the C and N sequestration by the green roof system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Indicators - Volume 61, Part 2, February 2016, Pages 739-752
Journal: Ecological Indicators - Volume 61, Part 2, February 2016, Pages 739-752
نویسندگان
S. Ondoño, J.J. MartÃnez-Sánchez, J.L. Moreno,