Research on Quantitative Evaluation of Remote Sensing and Statistics Based on Wireless Sensors and Farmland Soil Nutrient Variability

Table 5

Fragmentation degree of soil available nutrient map at different sampling scales.

Scale	Variable	Number of plaques NP (pieces)	Plaque density PD (pcs:hm^−2)
County	AN	75	0.16
	AP	116	0.22
	AK	89	0.17
Field	AN	13	0.23
	AP	18	0.36
	AK	14	0.25
Plot	AN	48	1.75
	AP	33	1.18
	AK	18	0.71