Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: To save the Environmental degradation: Please pay for ecosystem
  services!   Project planners should consider the monetary value of ecosystem services in
the regional service category and add it to the cost calculation of the project
as environmental cost. Managers should monitor and regularly maintain the
ecological environment within the project area to maintain the benefits of
environmental costs.With regard to the problem of predicting how the model
changes over time, we use LSTM to realize dynamic evaluation. The analysis that
has been made shows that the monetary value of urban ecological services has
increased. The environment is still being damaged. Through neural network
memory and learning, the problem can be found, and the model can be modified in
time.

19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ