国家生态屏障区1-km分辨率土壤保持数据集(2000-2015)

Soil Conservation Dataset Covering National Ecological Barrier Zone at 1-km Resolution(2000–2015)

生态系统服务是生态系统为人类提供的诸多惠益。土壤保持作为陆地生态系统提供的主要调节服务之一,是防止区域土地退化、降低洪涝灾害发生频率的重要保证,其常用土壤保持量(Soil Conservation,SC)是评估指标之一。作为国家生态安全战略格局的重要组成部分,"两屏三带"国家生态屏障区奠定了全国的生态安全格局,深入探讨屏障区土壤保持的时空分布对我国的生态文明建设及可持续发展具有深远意义。基于修正的通用土壤流失方程(Revised Universal Soil Loss Equation,RUSLE),使用MOD13A2 NDVI、ASTER GDEM、气象站点及中国土壤数据集等多种数据进行了国家生态屏障区1-km分辨率土壤保持数据集(2000-2015)的定量评估。数据格式为ArcGIS TIFF,单位是t·km^(-2)·a^(-1),空间分辨率为1-km,压缩后的数据量共计168 MB。

Ecosystem services are the benefits that ecosystem provides to human beings.As one of the main regulation services provided by the terrestrial ecosystem,soil conservation is an important guarantee to prevent regional land degradation and reduce the frequency of flood disasters,which is often expressed as the value of soil conservation.The national ecological barrier zone(NEBZ),known as"two barriers and three belts",established the national ecological security pattern.Exploring the spatiotemporal distribution of soil conservation in the barrier area is of far-reaching significance for China’s ecological civilization construction and sustainable development.Based on the revised universal soil loss equation(RUSLE),the soil conservation dataset(2000-2015)with a resolution of 1 km in NEBZ was quantitatively evaluated using MOD13A2 NDVI,ASTER GDEM,meteorological station data and soil dataset of China,etc.The data is archived in.tif format.The spatial resolution of the data is 1 km,and data size is 168 MB in compress.