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Livre du professeur de physique terminale-s. الثانية باكالوريا : كتاب خاص بتمارين مادة الفيزياء مع الحل باللغة الفرنسية. كتاب الكيمياء للسنة الثانية باكالوريا (المقرر الفرنسي) كتاب مفيد جدا للسنة الثانية ...
4 ημέρες πριν · Collected soil samples were air-dried at <40oC, which were then obtained <2 mm sized soil samples for most studies, while <0.25 mm sized samples were used for organic carbon and total nitrogen analyses due to the requirement of small sample weights (ASPAC, 2023). 2.3 Analytical processes and quality control The pH and EC of the soil samples ...
19 ώρες πριν · This is mainly due to the high vegetation cover of the low hills in the study area, which is rich in carbon stocks and well protected 45. Water had the lowest NRSEI values in 2014 and 2017. Water ...
1 ημέρα πριν · The world’s forests cover 4.1 billion ha (31% of the total land area) and contribute 662 Gt of total carbon stock (163 tonnes per ha), which is made up of 300 Gt in soil organic matter, 295 Gt in living biomass, and 68.0 Gt in dead wood and litter (FAO, 2024).Forests and trees have a significant impact on both people and the environment, supporting livelihoods and protecting biodiversity ...
2 ημέρες πριν · While numerous studies have examined the effects of direct and carbonized straw return on soil fertility, most focus on short-term impacts. Long-term research is needed to understand how these practices affect soil fertility and organic carbon transformation, providing guidance for the use of straw and biochar in agriculture. This study examined the long-term effects of corn straw (CS), straw ...
19 ώρες πριν · The conversion of spent coffee grounds (SCG) into hydrochars has been the subject of extensive research in recent years, aimed at evaluating their potential for biofortifying foods and mitigating the plant toxicity linked to SCG. This study aimed to assess the physicochemical characterization and the impact of incorporating both activated (ASCG and AH160) and functionalized SCG (ASCG-Zn), as ...
The immediate response of plants under DS is the closure of stomata to prevent water loss via transpiration. Plants grown under drought conditions tend to have lower stomatal conductance, thus helping to conserve water and maintain an adequate leaf water status while reducing leaf internal CO 2 concentration and photosynthesis (Ghatak et al., 2020).
