Finally, a model of grassland degradation assessment is built based on NDVI and grassland degradation index, which provides a new method for grassland degradation assessment with remote sensing.
最后根据NDVI与草地综合评价指数建立草地退化评价模型，为草地退化的遥感宏观评价提供了一种新方法。
The grazing behavior in early and intermediate stage of grassland contract was analyzed by employing the model of growth and consumption in pasture system, into which the discount rate was introduced.
利用牧草生长-消费模型，引入贴现影响，分析了牧民接手草地后的承包前期和中期放牧行为。
But it is unsuitable to predict the regions where the terrain is complicated and the grassland type changes largely because the predicted stability of the model becomes not very well.
但在地形复杂、草地类型变化较大的地区，模型稳定性变差，不适合于草地产量的预报。
Finally, a model of grassland degradation assessment is built based on NDVI and grassland degradation index, which provides a new method for grassland degradation assessment with...
最后根据NDVI与草地综合评价指数建立草地退化评价模型，为草地退化的遥感宏观评价提供了一种新方法。
A predictive model for head fire speed, fire intensity, and shape of burning site in grassland were established by step statistical method.
采用逐步回归方法建立了草地头火速度、火强度、火烧迹地形状的预测模型。
The model can be used to monitor grassland health condition by vegetation spectrum.
此模型可利用植被光谱较好地反映草场健康状况。
This model covers four bands and has a small amount of calculation, thus it can easily come true and has enough precision to meet real-time monitoring grassland production on a large scale.
本模型涵盖了四个波段，计算量小，容易实现，且精度可以满足大范围草原产草量动态监测。
Some major characteristics of the carbon cycle in grassland ecosystems were summarized, and a carbon cycle compartment model was introduced as well;
概述了草地生态系统碳素循环的一般特征，介绍了一个草地碳循环的分室模型；
Model are also used in grassland grazing systems, which are an important part of ecosystems.
草地放牧系统作为生态系统重要组成部分，对其研究自然也离不开模型的应用。
Model are also used in grassland grazing systems, which are an important part of ecosystems.
草地放牧系统作为生态系统重要组成部分，对其研究自然也离不开模型的应用。
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