2013-2021年东北地区30米年玉米秸秆覆盖度数据集

农作物秸秆覆盖对黑土的保护起着关键作用，非生长季节覆盖土壤，防止风蚀，砍伐后还田增加有机质。尽管有一些研究利用遥感技术绘制了农作物残留覆盖度图，但结果主要是小规模的，限制了结果的普适性。在这项研究中，我们提出了 2013 年至 2021 年中国东北地区的新型玉米残留覆盖率 (CRC) 数据集。我们数据集的目的是为描述和监测 CRC 黑土保护提供基础。我们的估计结果的准确性根据之前的研究和测量数据进行了验证，证明了估计的 CRC 与测量的 CRC 之间的确定系数 (R 2 ) 为 0.7304，均方根误差 (RMSE) 为 0.1247 的高精度。在野外活动中。此外，它是同类产品中第一个提供最长时间序列的，增强了其在长期监测和分析中的意义。

Crop straw residue mulching plays a critical role in protecting black soils. It covers bare soils during non-growing seasons to prevent wind erosion, and the residues are returned to croplands after crop harvesting to increase soil organic matter content. Although some studies have employed remote sensing techniques to map crop residue coverage, their findings are mostly restricted to small spatial scales, thereby limiting their generalizability. In this study, we developed a novel Corn Residue Coverage (CRC) dataset for Northeast China spanning the period from 2013 to 2021. The objective of this dataset is to provide a fundamental basis for describing and monitoring CRC for black soil conservation. The accuracy of our estimated CRC results was validated against prior studies and field-measured data, yielding a high agreement with a coefficient of determination (R²) of 0.7304 and a root mean square error (RMSE) of 0.1247 between the estimated and measured CRC values. In field validation activities. Furthermore, this dataset is the first of its kind to offer the longest time series among comparable datasets, which enhances its value for long-term monitoring and analysis.

搜集汇总

背景与挑战

背景概述

该数据集提供了2013年至2021年东北地区玉米秸秆覆盖度的年度遥感数据，空间分辨率为30米，旨在支持黑土保护监测。数据集基于Landsat和Modis数据，结合现场调查和无人机样本，在Google Earth Engine平台上生成，验证显示高准确性（R²=0.7304，RMSE=0.1247）。作为首个提供长时序的产品，它特别适用于长期环境分析和农业管理研究。