کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8104723 | 1522151 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Agricultural carbon flux changes driven by intensive plastic greenhouse cultivation in five climatic regions of China
ترجمه فارسی عنوان
تغییرات شار کربن کشاورزی توسط کشت گلدهی پلاستیکی شدید در پنج منطقه اقلیمی چین صورت گرفته است
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
سینک کربن، تداخل کربن، مناطق آب و هوایی، تشدید کشاورزی، چرخه کامل کربن،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
It is still controversial as to whether intensive agriculture increases or decreases carbon emissions compared to conventional farming. Carbon flux changes induced by the conversion of agricultural practices in different climatic regions have long been a scientific focus. As an intensive cultivation practice, vegetable cultivation within plastic greenhouses (PGVC) has been reported to reduce net carbon emissions following the conversion from conventional vegetable cultivation (CVC). However, it remains uncertain to what degree the carbon flux changes following the conversion in different climatic regions. Based on 637 paired soil data points and 189 vegetable data points from five major climatic regions in China, we used a full carbon cycle analysis to estimate the carbon flux changes when converting from CVC to PGVC. Results showed that the conversion reduced net carbon emissions in four climatic regions (middle temperate, warm temperate, south subtropical and north subtropical regions) but increased net carbon emissions in the Tibet Plateau region. This regional variation was attributable to the differences between soil carbon sequestration and fossil fuel emissions. The highest reduction (1.46 Mg C haâ1 yrâ1) occurred in the middle temperate region while the Tibet Plateau region acted as a net carbon source (â0.24 Mg C haâ1 yrâ1). This suggests that the conversion can increase carbon benefits within the four climatic regions. PGVC in these regions could be considered as a promising option for carbon-smart intensive agriculture and would be worth expanding in countries with similar weather conditions, to mitigate carbon emissions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 95, 15 May 2015, Pages 265-272
Journal: Journal of Cleaner Production - Volume 95, 15 May 2015, Pages 265-272
نویسندگان
Xu Wu, Ying Ge, Yan Wang, Dong Liu, Baojing Gu, Yuan Ren, Guofu Yang, Changhui Peng, Jihua Cheng, Jie Chang,