Biology, 29.09.2020 20:01 rujirasri3620
A group of scientists have analyzed Horqin Sandy Land in China, an economically poor farming grassland that has experienced a transition to and from desert-like conditions. They compiled the following sets of data:
Land Use
1985
1992
2001
2013
Proportion of Total Land
Grassland
79.49
71.96
70.48
62.87
Farmland
15.16
22.94
24.79
31.97
Forestland
1.67
2.14
2.26
2.55
Groundwater
1.87
1.53
0.65
0.59
Human settlement
0.33
0.49
0.81
1.44
According to the data, what human effects seem to be correlated with ecosystem degradation, and what is the most important thing the government could do to reduce these effects?
There is not enough use of groundwater. The government could institute irrigation projects to use groundwater to move water inland.
There is too much use of land for farming or grazing. The government could provide economic incentives for farmers to allocate grasslands.
There is not enough forestland. The government could institute additional tree-planting farms in the most fragile areas to provide shade.
There are too many people in the fragile areas. The government could provide economic incentives for farmers to move to other, less fragile areas.
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