Rend of high- and low-coverage grassland is opposite throughout 2000012. In this study, we identified the principle outflow (59,141.81 km2 in total) was grassland turned into cultivated land (26,130.44 km2 ), and also the major inflow (63,870.50 km2 in total) was from bare land to grassland (33,086.56 km2 ) over the 21 years. These above studies recommend that the combined effects of climate transform and human activities triggered the NPP frequent adjustments, so that both long and short time series of monitoring are essential. Notably, it has been widely reported that the ecological atmosphere in the Mu Us Desert in Ordos has been drastically enhanced because of a series of ecological restoration policies within the past decades [91,92], which can be constant with our results. As a result, the influence of human activities on grasslands quality has each constructive and unfavorable effects. Even though extra land changed into grassland, the NPP of your improved grassland was decrease than that of the lost grassland. In total, the NPP loss caused by LUCC was greater than the NPP development triggered by LUCC, at 17.63 and 16.38 Tg C, respectively. In the event the enhance of grassland NPP triggered by climatic elements is deemed, the NPP loss brought on by human activities (mainly reclaiming grassland) could be even greater. Despite the fact that persons have created good efforts to make the bare land green and turn it into grassland, the top quality of these new grassland areas is around the low side. Hence, it is also critical to defend the existing grassland from reclamation and desertification. Additionally, to discover the high-quality of grass, the greater time resolution and finer-grained vegetation kinds need to be included in the future. All grassland ecosystem management projects really should be evaluated by high quality indices, for instance NPP, and not just the region. 4.three. NPP Thiacloprid Protocol Response for the Meteorological Components The correlation coefficient spatial distribution map (Figure 12) shows that precipitation was the main element for grassland NPP in Inner Mongolia from 2000 to 2020, with which 97.06 from the total grassland showed a constructive relationship. Most studies suggest that the precipitation may be the most significant meteorological issue which affected the change of grassland NPP in Inner Mongolia [41,83,86,93], which is constant with all the conclusion of our research. The improve of precipitation more than the last 20 years has contributed towards the general improve in grassland NPP. The grassland NPP shows a adverse correlation with temperature inside the water-deficient location when the connection will turn into optimistic when the water is adequate. Additionally, the correlation coefficients in between precipitation and NPP inside the north and south with the Greater Khingan Variety GYKI 52466 Neuronal Signaling possess a specific difference with the strength. Combined with Figure 7, the modifications of NPP in the distinctive sides with the Greater Khingan Variety are unique significantly. For the two sides from the mountains, the variations in water and heat sources possess a higher impact on grassland growth. Moreover, as Wu et al. [94] summarized, human activities such as mining and reclamation had essentially the most obviousRemote Sens. 2021, 13,22 ofimpact on grassland NPP in west Xilingol during 2000018. Far more human activities also can weaken the response of grassland to meteorological factors, which include inside the south side with the Greater Khingan Range. Guo et al. [93] discovered that various grassland species had distinct responses to meteorological variables. Furthermore, there’s a time-lag inside the response of vegetation to climatic facto.
