Land Use Zoning for Conserving Ecosystem Services under the Impact of Climate Change: A Case Study in the Middle Reaches of the Heihe River Basin

Table 2

Descriptive statistics of key ecosystem services indicators in the Heihe River Basin.

Variable	Unit	Mean	Std. Dev.	Min	Max
Cultivated land	%	5.52	1873.59	0	100
Water area	%	4.49	1616.67	0	100
Grassland	%	16.79	3091.04	0	100
Forestry area	%	1.12	660.01	0	100
Air temperature	°C	0.51	2.54	0	0.96
Temperature departure	°C	0	2.52	−5.59	4.27
Precipitation departure	mm	0	75.04	−137.93	213.55
Cumulated temperature	°C	2479.10	733.29	461.29	3942.56
Sunshine hours	h	8.33	0.35	7.31	9.30
Sunshine hours departure	h		0.31	−1.00	0.76
Landscape diversity index	—	−37.81	116.46	−460.52	460.52
Loam proportion	%	22.50	6.37	4	34
Slope	0.01°	4.72	5.53	0	60.57
Soil phosphorus content	%	0.07	0.01	0.02	0.08
Net primary production	gC m^−2yr^−1	97.54	112.16	0	897

Note: total observation: 161584.